Nathan Smith

KMap

❝

Nathan conducts observations using the Hubble Space Telescope and other NASA missions, plus numerous ground-based optical/infrared telescopes. Although primarily an observer, he incorporates theoretical tools in his work, and has a broad interest in Galactic astronomy including stellar evolution, mass loss, circumstellar material, shock physics, HII regions, disks, jets, planetary nebulae, dust formation, and nebular spectroscopy. Nathan earned undergraduate degrees in music and astronomy, plus a master's degree and a Ph.D. in Astrophysics.

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Courses

FA
Fundamentals of Astronomy
SFSEOP
Seminiar with a Focus on Stellar Evolution from an Observational Perspective
TA
Theoretical Astrophysics
TPU
The Physical Universe
ASP
Astrophysics of Stars and Planets
S
Stars

SFSEOP
Seminar with a Focus on Stellar Evolution from an Observational Perspective

Grants

Disentangling the Origin of Dust in Type lln Supernovae
Principal Investigator (PI)
2023
$18.9K
Active
The Final Word on SN 2009ip: Is it Dead?
Principal Investigator (PI)
2022
$13.7K
Active
Shocks and Expanding Ejecta in Supernova 1987A
Principal Investigator (PI)
2022
$12.4K
Active
Using Supernova Progenitors to Determine the Mass Threshold for Black Hole Formation
Principal Investigator (PI)
2022
$12.1K
Active
From Supernova Progenitors to Ionizing Radiation - HST/COS Spectroscopy of Stripped Helium Stars
Principal Investigator (PI)
2022
$7.8K
Active
The Disappearing LBV in the Low Metallicity Galaxy PHL293B: Collapse to a Black Hole?
Principal Investigator (PI)
2021
$43.4K
Active
UV Spectroscopy of He Stars: The Elusive Stripped-Envelope Supernova Progenitors
Principal Investigator (PI)
2020
$64.4K
Active
Proper Motions and UV Spectroscopy of the MgII Nebula Around Eta Carinae
Principal Investigator (PI)
2020
$41.4K
Active
Flashlights:Many Extremely Magnified Individual Stars as Probes of Dark Matter and Stellar Populations to Redshift z~2
Principal Investigator (PI)
2020
$39.2K
Active

The Identification of Failed Supernovae
Co-Investigator (COI)
2019
$276.6K
Active

News

Astronomers Uncover Clues to the Star that Wouldn't Die
2018
The Supernova That Wasn't: A Tale of 3 Cosmic Eruptions
2016
The Supernova That Cried Wolf
2013
Echoes From an Exploding Star
2012

Wildcat Alumni to Compete in This Year's Masters
2010

Publications (312)

Recent

Ionized Carbon around IRC+10216
2022
Infant-phase reddening by surface Fe-peak elements in a normal type Ia supernova
2022
The Locus Algorithm: A novel technique for identifying optimised pointings for differential photometry
2022
First Direct Detection Constraints on Planck-Scale Mass Dark Matter with Multiple-Scatter Signatures Using the DEAP-3600 Detector
2022
Optical Rebrightening of Extragalactic Transients from the Zwicky Transient Facility
2022
Massive stars dying alone: the remote environment of supernova 2010jp and its associated late-time source
2022
Enormous explosion energy of Type IIP SN 2017gmr with bipolar $^{56$Ni ejecta}
2021
Searches after Gravitational Waves Using ARizona Observatories (SAGUARO): Observations and Analysis from Advanced LIGO/Virgo's Third Observing Run
2021
The Age of Westerlund 1 Revisited
2021
The electron-capture origin of supernova 2018zd
2021
Effect of binary evolution on the inferred initial and final core masses of hydrogen-rich, Type II supernova progenitors
2021
A Bright Ultraviolet Excess in the Transitional 02es-like Type Ia Supernova 2019yvq
2021
GRB 180418A: A Possibly Short Gamma-Ray Burst with a Wide-angle Outflow in a Faint Host Galaxy
2021
Circumstellar Medium Constraints on the Environment of Two Nearby Type Ia Supernovae: SN 2017cbv and SN 2020nlb
2021
A High-velocity Scatterer Revealed in the Thinning Ejecta of a Type II Supernova
2021
Probing Kilonova Ejecta Properties Using a Catalog of Short Gamma-Ray Burst Observations
2021
Simulating the formation of {ensuremath{eta} Carinae's surrounding nebula through unstable triple evolution and stellar merger-induced eruption}
2021
The Blue Supergiant Progenitor of the Supernova Imposter AT 2019krl
2021
SN2017jgh: a high-cadence complete shock cooling light curve of a SN IIb with the Kepler telescope
2021
The Impact of Realistic Red Supergiant Mass Loss on Stellar Evolution
2021
AT 2019qyl in NGC 300: Internal Collisions in the Early Outflow from a Very Fast Nova in a Symbiotic Binary
2021
Revealing Efficient Dust Formation at Low Metallicity in Extragalactic Carbon-rich Wolf-Rayet Binaries
2021
The Emirates Mars Mission (EMM) Emirates Mars InfraRed Spectrometer (EMIRS) Instrument
2021
Supernova 2018cuf: A Type IIP Supernova with a Slow Fall from Plateau
2021
Discovery of a 310 Day Period from the Enshrouded Massive System NaSt1 (WR 122)
2021
The possible disappearance of a massive star in the low-metallicity galaxy PHL 293B
2020
The slow demise of the long-lived SN 2005ip
2020
Carbon Chain Depletion of 2I/Borisov
2020
A new and unusual LBV-like outburst from a Wolf-Rayet star in the outskirts of M33
2020
Massive Black Holes Regulated by Luminous Blue Variable Mass Loss and Magnetic Fields
2020
High-resolution spectroscopy of SN 2017hcc and its blueshifted line profiles from post-shock dust formation
2020
Erratum: Inferring the parallax of Westerlund 1 from Gaia DR2
2020
Discovery and Rapid Follow-up Observations of the Unusual Type II SN 2018ivc in NGC 1068
2020
SN 2014ab: an aspherical Type IIn supernova with low polarization
2020
Inferring the parallax of Westerlund 1 from Gaia DR2
2020
A new mass-loss rate prescription for red supergiants
2020
Constraining the Source of the High-velocity Ejecta in Type Ia SN 2019ein
2020
Predictions for the hydrogen-free ejecta of pulsational pair-instability supernovae
2020
Photometric and Spectroscopic Properties of Type Ia Supernova 2018oh with Early Excess Emission from the Kepler 2 Observations
2019
Discovery of an Intermediate-luminosity Red Transient in M51 and Its Likely Dust-obscured, Infrared-variable Progenitor
2019
Nebular Hensuremath{alpha} Limits for Fast Declining SNe Ia
2019
K2 Observations of SN 2018oh Reveal a Two-component Rising Light Curve for a Type Ia Supernova
2019
The diverse lives of progenitors of hydrogen-rich core-collapse supernovae: the role of binary interaction
2019
Observational Signature of Circumstellar Interaction and $^56$Ni-mixing in the Type II Supernova 2016gfy
2019
The Type II superluminous SN 2008es at late times: near-infrared excess and circumstellar interaction
2019
SN 2017gmr: An Energetic Type II-P Supernova with Asymmetries
2019
The Type II-plateau Supernova 2017eaw in NGC 6946 and Its Red Supergiant Progenitor
2019
Searching for Highly Magnified Stars at Cosmological Distances: Discovery of a Redshift 0.94 Blue Supergiant in Archival Images of the Galaxy Cluster MACS J0416.1-2403
2019
Signatures of circumstellar interaction in the unusual transient AT 2018cow
2019
The SPIRITS Sample of Luminous Infrared Transients: Uncovering Hidden Supernovae and Dusty Stellar Outbursts in Nearby Galaxies
2019
The isolation of luminous blue variables resembles aging B-type supergiants, not the most massive unevolved stars
2019
Searches after Gravitational Waves Using ARizona Observatories (SAGUARO): System Overview and First Results from Advanced LIGO/Virgotextquoterights Third Observing Run
2019
Supernova 2014C: Ongoing Interaction with Extended Circumstellar Material with Silicate Dust
2019
Ultraviolet Mg II emission from fast neutral ejecta around Eta Carinae
2019
On the Gaia DR2 distances for Galactic luminous blue variables
2019
A Search for Optical Emission from Binary Black Hole Merger GW170814 with the Dark Energy Camera
2019
Discrepancies in the ages of young star clusters; evidence for mergers?
2019
X-ray emission from SN 2012ca: A Type Ia-CSM supernova explosion in a dense surrounding medium
2018
Extreme magnification of an individual star at redshift 1.5 by a galaxy-cluster lens
2018
SOFIA/FORCAST Observations of the Luminous Blue Variable Candidates MN 90 and HD 168625
2018
Strong late-time circumstellar interaction in the peculiar supernova iPTF14hls
2018
Extreme isolation of WN3/O3 stars and implications for their evolutionary origin as the elusive stripped binaries
2018
A surge of light at the birth of a supernova
2018
ASASSN-15nx: A Luminous Type II Supernova with a ldquoPerfectrdquo Linear Decline
2018
Exceptionally fast ejecta seen in light echoes of Eta Carinae's Great Eruption
2018
Light echoes from the plateau in Eta Carinae's Great Eruption reveal a two-stage shock-powered event
2018
A disrupted molecular torus around Eta Carinae as seen in $^{12$CO with ALMA}
2018
SN2012ab: a peculiar Type IIn supernova with aspherical circumstellar material
2018
The Type IIn Supernova SN 2010bt: The Explosion of a Star in Outburst
2018
SN 2013fs and SN 2013fr: exploring the circumstellar-material diversity in Type II supernovae
2018
SN 2017ein and the Possible First Identification of a Type Ic Supernova Progenitor
2018
A radial velocity survey of the Carina Nebula's O-type stars
2018
SPIRITS 16tn in NGC 3556: A Heavily Obscured and Low-luminosity Supernova at 8.8 Mpc
2018
Ultraviolet Detection of the Binary Companion to the Type IIb SN 2001ig
2018
Erratum: ldquoSN 2017ein and the Possible First Identification of a Type Ic Supernova Progenitorrdquo ( A href=``http://doi.org/10.3847/1538-4357/aac32c'' 2018, ApJ, 860, 90 /A )
2018
Three Hypervelocity White Dwarfs in Gaia DR2: Evidence for Dynamically Driven Double-degenerate Double-detonation Type Ia Supernovae
2018
Modelling luminous-blue-variable isolation
2017
LOSS Revisited. II. The Relative Rates of Different Types of Supernovae Vary between Low- and High-mass Galaxies
2017
Multiepoch Spectropolarimetry of SN 2011fe
2017
SPIRITS: Uncovering Unusual Infrared Transients with Spitzer
2017
Endurance of SN 2005ip after a decade: X-rays, radio and H{$alpha$ like SN 1988Z require long-lived pre-supernova mass-loss}
2017
A moderately precise dynamical age for the Homunculus of Eta Carinae based on 13 years of HST imaging
2017
Constraints on the Progenitor of SN 2010jl and Pre-existing Hot Dust in its Surrounding Medium
2017
The dusty silhouette jet HH 1019 in the Carina Nebula
2017
Multi-messenger Observations of a Binary Neutron Star Merger
2017
Predicting the Presence of Companions for Stripped-envelope Supernovae: The Case of the Broad-lined Type Ic SN 2002ap
2017
Luminous blue variables and the fates of very massive stars
2017
Revisiting the Lick Observatory Supernova Search Volume-limited Sample: Updated Classifications and Revised Stripped-envelope Supernova Fractions
2017
The nearby Type Ibn supernova 2015G: signatures of asymmetry and progenitor constraints
2017
Ultraviolet spectroscopy of the blue supergiant SBW1: the remarkably weak wind of a SN 1987A analogue
2017
Optical and IR observations of SN 2013L, a Type IIn Supernova surrounded by asymmetric CSM
2017
The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. IV. Detection of Near-infrared Signatures of r-process Nucleosynthesis with Gemini-South
2017
Resolving the H{$alpha$-emitting Region in the Wind of $eta$ Carinae}
2017
The Candidate Progenitor of the Type IIn SN 2010jl Is Not an Optically Luminous Star
2017
A gravitational-wave standard siren measurement of the Hubble constant
2017
Proper motions of collimated jets from intermediate-mass protostars in the Carina Nebula
2017
Proper motions of five OB stars with candidate dusty bow shocks in the Carina Nebula
2017
SPIRITS 15c and SPIRITS 14buu: Two Obscured Supernovae in the Nearby Star-forming Galaxy IC 2163
2017
The Canonical Luminous Blue Variable AG Car and Its Neighbor Hen 3-519 are Much Closer than Previously Assumed
2017
The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. II. UV, Optical, and Near-infrared Light Curves and Comparison to Kilonova Models
2017
Rising from the Ashes: Mid-infrared Re-brightening of the Impostor SN 2010da in NGC 300
2016
Asymmetries in SN 2014J near Maximum Light Revealed through Spectropolarimetry
2016
A DECam Search for an Optical Counterpart to the LIGO Gravitational-wave Event GW151226
2016
Massive stars dying alone: the extremely remote environment of SN 2009ip
2016
ALMA-resolved salt emission traces the chemical footprint and inner wind morphology of VY Canis Majoris
2016
Ancient eruptions of {$eta$ Carinae: a tale written in proper motions}
2016
The Persistent Eruption of UGC 2773-OT: finally, a decade-long extragalactic Eta Carinae analogue
2016
Disappearance of the Progenitor of Supernova iPTF13bvn
2016
Three-dimensional Distribution of Ejecta in Supernova 1987A at 10,000 Days
2016
[Fe II] jets from intermediate-mass protostars in Carina
2016
A Dark Energy Camera Search for an Optical Counterpart to the First Advanced LIGO Gravitational Wave Event GW150914
2016
A Systematic Study of Mid-infrared Emission from Core-collapse Supernovae with SPIRITS
2016
An optical and near-infrared study of the Type Ia/IIn Supernova PS15si
2016
Massive star mergers and the recent transient in NGC 4490: a more massive cousin of V838 Mon and V1309 Sco
2016
An Excess of Mid-infrared Emission from the Type Iax SN 2014dt
2016
Solar abundances of rock-forming elements, extreme oxygen and hydrogen in a young polluted white dwarf
2016
A Dark Energy Camera Search for Missing Supergiants in the LMC after the Advanced LIGO Gravitational-wave Event GW150914
2016
The isolation of luminous blue variables: on subdividing the sample
2016
The Afterglow and Early-type Host Galaxy of the Short GRB 150101B at z = 0.1343
2016
On the Progenitor System of the Type Iax Supernova 2014dt in M6
2015
Multiwavelength observations of NaSt1 (WR 122): equatorial mass loss and X-rays from an interacting Wolf-Rayet binary
2015
Disentangling the outflow and protostars in HH 900 in the Carina Nebula
2015
On the nature of Type IIn/Ia-CSM supernovae: optical and near-infrared spectra of SN 2012ca and SN 2013dn
2015
Constraints on Type IIn supernova progenitor outbursts from the Lick Observatory Supernova Sea
2015
Ultraviolet Spectroscopy of Type IIb Supernovae: Diversity and the Impact of Circumstellar Material
2015
HH 666: different kinematics from H α and [Fe II] emission provide a missing link between jets and outflows
2015
Observations of Type Ia Supernova 2014J with FLITECAM/SOFIA
2015
A Machine-learning Method to Infer Fundamental Stellar Parameters from Photometric Light Curves
2015
PTF11iqb: cool supergiant mass-loss that bridges the gap between Type IIn and normal supernovae
2015
Spectropolarimetry of SN 2011dh in M51: geometric insights on a Type IIb supernova progenitor and explosion
2015
A Survey of Irradiated Pillars, Globules, and Jets in the Carina Nebula
2015
Mapping High-velocity Hα and Lyα Emission from Supernova 1987A
2015
The Destruction of the Circumstellar Ring of SN 1987A
2015
SOFIA/FORCAST Observations of Warm Dust in S106: A Fragmented Environment
2015
Luminous blue variables are antisocial: their isolation implies that they are kicked mass gainers in binary evolution
2015
Late-time spectroscopy of SN 2002hh: a continued visible light echo with no shock interaction yet
2015
SN Hunt 248: a super-Eddington outburst from a massive cool hypergiant
2015
What powers the 3000-day light curve of SN 2006gy?
2015
The Supernova Spectropolarimetry Project: Evolution of Asymmetries in the Very Luminous Type Ib SN 2012au
2014
SDSS1133: an unusually persistent transient in a nearby dwarf galaxy
2014
The remarkably similar explosions of SN2009ip and SN2010mc, and the late fading of Type IIn supernovae
2014
Powerful jets driven by intermediate-mass protostars in the Carina Nebula
2014
The type IIb supernova 2013df and its cool supergiant progenitor
2014
SN 2009ip and SN 2010mc: Core-collapse type IIn supernovae arising from blue supergiants
2014
Spectropolarimetry of SN 2011fe
2014
Kinematics of powerful jets from intermediate-mass protostars in the Carina Nebula
2014
Sher 25: Pulsating but apparently alone
2014
The Supernova Spectropolarimetry Project: Results from Multi-Epoch Observations of the Type IIn SN 2010jl
2014
Light Echoes from Eta Carinae's Great Eruption: Spectrophotometric evolution and the rapid formation of nitrogen-rich molecules
2014
Uncovering the putative B-star binary companion of theSN 1993J progenitor
2014
The yellow hyper giant HR 5171A: Resolving a massive interacting binary in the common envelope phase
2014
Preparing for an Explosion:Hydrodynamic instabilities and turbulence in presupernovae
2014
Type IIb supernova SN 2011dh: Spectra and photometry from the ultraviolet to the near-infrared
2014
Extended red objects and stellar-wind bow shocks in the Carina Nebula
2014
The Supernova Spectropolarimetry Project: Photometric Followup in the Optical and Near- Infrared by the Mount Laguna Supernova Survey
2014
Mass Loss: Its Effect on the Evolution and Fate of High-Mass Stars
2014
Multi-epoch spectropolarimetry of SN 2009ip: direct evidence for aspherical circumstellar material
2014
A model for the 19th century eruption of Eta Carinae: CSM interaction like a scaled-down type IIn supernova
2013
The crab nebula and the class of type iin-p supernovae caused by sub-energetic electron-capture explosions
2013
[Fe II] Emission Tracing Massive, Irradiated Jets from Intermediate-Mass Protostars in the Carina Nebula
2013
[Fe II] Emission Tracing Dense Jets from Intermediate-mass Protostars in Carina
2013
SN 2011ht: Confirming a class of interacting supernovae with plateau light curves (type IIn-P)
2013
Spectrophotometric Evolution of Eta Carinae's Great Eruption
2013
Extended Red Objects and Stellar Wind Bow Shocks in the Carina Nebula
2013
Near-infrared spectroscopy of SN 2009ip's 2012 brightening reveals a dusty pre-supernova environment
2013
The unprecedented 2012 outburst of SN 2009ip: A luminous blue variable star becomes a true supernova
2013
The Nature of LBVs
2013
The progenitor of supernova 2011dh has vanished
2013
The Unprecedented Third Outburst of SN 2009ip: A Luminous Blue Variable Becomes a Supernova
2013
Systematic blueshift of line profiles in the type IIn supernova 2010jl: Evidence for post-shock dust formation?
2012
Spectroscopic Time-Series of Transients with Light Echoes
2012
Discovery and early multi-wavelength measurements of the energetic type IC supernova ptf12gzk: A massive-star explosion in a dwarf host galaxy
2012
Light echoes reveal an unexpectedly cool σ Carinae during its nineteenth-century Great Eruption
2012
Supernova 1998S at 14 years postmortem: Continuing circumstellar interaction and dust formation
2012
Rest et al. reply
2012
SN 2010jp (PTF10aaxi): A jet in a Type II supernova
2012
SN 2011hw: Helium-rich circumstellar gas and the luminous blue variable to Wolf-Rayet transition in supernova progenitors
2012
SN2010jp: A Jet-Driven Type II Supernova
2012
All Things Homunculus
2012
The Supernova Spectropolarimetry Project; A Study of the Evolution of Aspherical Stellar Explosions
2012
HST-COS observations of hydrogen, helium, carbon, and nitrogen emission from the SN 1987A reverse shock
2011
SN 2010jp (PTF10aaxi): A jet-driven type II supernova
2011
A pan-carina young stellar object catalog: Intermediate-mass young stellar objects in the Carina Nebula identified via mid-infrared excess emission
2011
An introduction to the Chandra Carina Complex Project
2011
Explosive outflows powered by the decay of non-hierarchical multiple systems of massive stars: Orion BN/KL
2011
Luminous blue variable eruptions and related transients: Diversity of progenitors and outburst properties
2011
Explosions triggered by violent binary-star collisions: Application to Eta Carinae and other eruptive transients
2011
The massive progenitor of the possible type II-Linear supernova 2009hd in Messier 66
2011
A disc inside the bipolar planetary nebula M2-9
2011
Episodic mass loss in binary evolution to the Wolf-Rayet phase: Keck and HST proper motions of RY Scuti's nebula
2011
A revised historical light curve of Eta Carinae and the timing of close periastron encounters
2011
A massive progenitor of the luminous type IIn supernova 2010jl
2011
Nearby supernova rates from the Lick Observatory Supernova Search - II. The observed luminosity functions and fractions of supernovae in a complete sample
2011
X-ray star clusters in the Carina Complex
2011
A Spitzer survey for dust in type IIn supernovae
2011
X-ray illumination of the ejecta of supernova 1987A
2011
Observed fractions of core-collapse supernova types and initial masses of their single and binary progenitor stars
2011
A catalog of Chandra X-ray sources in the Carina Nebula
2011
Penetrating the homunculus-near-infrared adaptive optics images of Eta Carinae
2011
Numerical models of collisions between core-collapse supernovae and circumstellar shells
2010
SN 2008iy: An unusual Type IIn Supernova with an enduring 400-d rise time
2010
HH jets aligned perpendicular to elephant trunks
2010
Erratum: On the progenitor of the type II-plateau SN 2008cn in NGC 4603 (ApJ (2009) 706 (1174))
2010
Episodic post-shock dust formation in the colliding winds of Eta Carinae
2010
Design and implementation of the NUV/optical widefield Star Formation Camera for the Theia observatory
2010
Discovery of precursor luminous blue variable outbursts in two recent optical transients: The fitfully variable missing links UGC 2773-ot and SN 2009ip
2010
New observations of the very luminous supernova 2006gy: Evidence for echoes
2010
Eruptive outflow phases of massive stars
2010
Spitzer space telescope observations of the Carina nebula: The steady march of feedback-driven star formation
2010
Observing supernova 1987A with the refurbished hubble space telescope
2010
HST/ACS Hα imaging of the Carina Nebula: Outflow activity traced by irradiated Herbig-Haro Jets
2010
SN 2008S: A cool super-eddington wind in a supernova impostor
2009
Massive star formation and feedback in W49A: The source of our Galaxy's most luminous water maser outflow
2009
Improved standardization of type II-P supernovae: Application to an expanded sample
2009
UV, IR, and MM studies of CO surrounding the red supergiant α orionis (M2 Iab)
2009
Red supergiants as potential type IIn supernova progenitors: Spatially resolved 4.6 μm CO emission aroung VY CMa and betelgeuse
2009
On the progenitor of the type II-plateau SN 2008cn in NGC 4603
2009
The exceptionally luminous type II-linear supernova 2008es
2009
Erratum: Spitzer space telescope infrared imaging and spectroscopy of the Crab nebula (The Astronomical Journal (2006) 132, (1610))
2009
Possible detection of a pair instability supernova in the modern universe, and implications for the first stars
2008
Late-time observations of SN 2006gy: Still going strong
2008
Galactic twins of the ring nebula around SN1987A and a possible LBV-like phase for SK-69 202
2008
On the role of the WNH phase in the evolution of very massive stars: Enabling the LBV instability with feedback
2008
A three-decade outburst of the lmc luminous blue variable R127 draws to a close
2008
Dust formation and He II λ4686 emission in the dense shell of the peculiar type Ib supernova 2006jc
2008
The star formation observatory (SFO) mission to study cosmic origins near and far
2008
A blast wave from the 1843 eruption of η Carinae
2008
A study of H sub 2 /sub emission in three bipolar proto-planetary nebulae: IRAS 16594-4656, Hen 3-401, and Rob 22
2008
The detection of a light echo from the type Ia supernova 2006X in M100
2008
SN 2006tf: Precursor eruptions and the optically thick regime of extremely luminous type IIn supernovae
2008
Galactic twins of the nebula around SN 1987A: Hints that LBVs may be supernova progenitors
2007
The structure of the Homunculus. II. Modeling the physical conditions in η Carinae's molecular shell
2007
Episodic mass loss and pre-SN circumstellar envelopes
2007
High resolution spectroscopy of SN1987A's rings: He i λ 10830 and Hα from the hotspots
2007
SN 2006jc: A Wolf-Rayet star exploding in a dense He-rich circumstellar medium
2007
A silicate disk in the heart of the Ant
2007
SN 2006gy: Discovery of the most luminous supernova ever recorded, powered by the death of an extremely massive star like η carinae
2007
A census of the Carina Nebula - II. Energy budget and global properties of the nebulosity
2007
Interstellar absorption-line evidence for high-velocity expanding structures in the Carina Nebula foreground
2007
Shell-shocked diffusion model for the light curve of sn 2006gy
2007
And in the darkness bind them: Equatorial rings, B[e] supergiants, and the waists of Bipolar Nebulae sup 1 /sup
2007
Discovery of a nearby twin of SN 1987A'S nebula around the luminous blue variable HD 168625: Was SK - 69 202 an LBV?
2007
A spectroscopic study of mass outflows in the interacting binary RY scuti
2007
The structure of the homunculus. III. Forming a disk and bipolar lobes in a rotating surface explosion
2007
Hubble space telescope observations of oxygen-rich supernova remnants in the magellanic clouds. III. WFPC2 imaging of the young, Crab-like supernova remnant SNR 0540-69.3
2006
Evolution of the reverse shock emission from SNR 1987A
2006
Using H sub 2 /sub emission to study the fast wind in proto-planetary nebulae
2006
Spitzer space telescope infrared imaging and spectroscqpy of the Crab Nebula
2006
[Ti II] and [Ni II] emission from the strontium filament of η Carinae
2006
On the role of continuum-driven eruptions in the evolution of very massive stars and population III stars
2006
Early infrared spectral development of V1187 scorpii (nova scorpii 2004 NO. 2)
2006
Erratum: A census of the Carina Nebula - I. Cumulative energy input from massive stars (Monthly Notices of the Royal Atronomical Society (2006) 367 (763-772))
2006
Cleaning up η Carinae: Detection of ammonia in the Homunculus Nebula
2006
A census of the Carina Nebula - I. Cumulative energy input from massive stars
2006
The structure of the Homunculus. I. Shape and latitude dependence from H sub 2 /sub and [Fe II] velocity maps of η Carinae
2006
Infrared [Fe II] emission from P Cygni's nebula: Atomic data, mass, kinematics, and the 1600 AD outburst
2006
Irradiated and bent jets in the Orion Nebula
2006
The UV scattering halo of the central source associated with η carinae
2006
The [O III] veil: Astropause of η Carinae's wind?
2005
Kinematic structure of H sub 2 /sub and [Fe II] in the bipolar planetary nebula M2-9
2005
Chandra Orion ultradeep project census of X-ray stars in the BN-KL and OMC-1S regions
2005
Outflows in the Orion Nebula: HH 540 from the beehive proplyd
2005
The reverse shock of SNR 1987A at 18 years after outburst
2005
Bipolar symbiotic planetary nebulae in the thermal infrared: M2-9, Mz 3, and He 2-104
2005
Discovery of a candidate protoplanetary disk around the embedded source IRc9 in Orion
2005
Nearby regions of massive star formation
2005
Opening the treasure Chest: A newborn star cluster emerges from its dust pillar in Carina
2005
Simba observations of the keyhole nebula
2005
New silhouette disks with reflection nebulae and outflows in the Orion Nebula and M43
2005
Thermal dust emission from proplyds, unresolved disks, and shocks in the Orion Nebula
2005
Doppler tomography of the Little Homunculus: High-resolution spectra of [Fe II] λ16 435 around Eta Carinae
2005
HH 666: The axis of evil in the Carina Nebula
2004
Spatially extended K I λ7699 emission in the nebula of VY CMa: Kinematics and geometry
2004
The purple haze of ν Carinae: Binary-induced variability?
2004
Thermal-infrared detection of optical outflow sources in OMC-1 South
2004
Kinematics and ultraviolet to infrared morphology of the inner Homunculus of η Carinae
2004
The missing luminous blue variables and the bistability jump
2004
Identification of emission lines in the low-ionization strontium filament near Eta Carinae
2004
Nitrogen and oxygen abundance variations in the outer ejecta of η Carinae: Evidence for recent chemical enrichment
2004
Carina's defiant finger: HST observations of a photoevaporating globule in NGC 3372
2004
The systemic velocity of eta Carinae
2004
Waiting in the wings: Reflected X-ray emission from the Homunculus nebula
2004
The integrated optical spectrum of the Crab nebula and evidence for its fading synchrotron continuum
2003
Spatial distribution of near-infrared and optical emission properties in the bipolar nebula Menzel 3
2003
The mysterious ring in the open cluster NGC 3572: Planetary nebula or photoevaporating globule?
2003
Discovery of a little homunculus within the Homunculus Nebula of η Carinae
2003
Latitude-dependent effects in the stellar wind of η Carinae
2003
Numerous proplyd candidates in the harsh environment of the Carina Nebula
2003
Crossing the yellow void: Spatially resolved spectroscopy of the post-red supergiant IRC +10420 and its circumstellar ejecta
2002
Dissecting the Homunculus nebula around Eta Carinae with spatially resolved near-infrared spectroscopy
2002
Infrared [Fe II] emission in the circumstellar nebulae of luminous blue variables
2002
The WR+OB progenitor RY Scuti: Intensive spectroscopy of its compact double-ring nebula
2002
Near-infrared and optical emission-line structure of the Keyhole Nebula in NGC 3372
2002
Proper motion and excitation structure of the expanding ionized rings around RY Scuti
2001
Post-eruption detection of variable 12 in NGC 2403 (SN 1954j): Another η Carinae variable
2001
Thermal infrared imaging of the bipolar H II region S106
2001
The shape and orientation of the Homunculus Nebula based on spectroscopic velocities
2001
The shocking near-infrared spectrum of the Homunculus Nebula surrounding η Carinae
2001
The asymmetric nebula surrounding the extreme red supergiant VY Canis Majoris
2001
Keck LWS images of the compact nebula around RY Scuti in the thermal infrared
2001
Large-scale structure of the Carina Nebula
2000
A massive cool dust torus around η Carinae?
2000
Recent changes in the near-ultraviolet and optical structure of η carinae
2000
Thermal infrared imaging of ultracompact H II regions in W49A
2000
Recent changes in the near-infrared structure of η Carinae
2000
η Carinae: Testing a binary orbit model with the Hubble Space Telescopei/Space Telescope Imaging Spectrograph
2000
Thermal infrared images of the remarkable young nearby multiple star HD 98800
1999
Hubble Space Telescope images of the compact nebula around RY Scuti
1999
η Carinae's second eruption and the light curves of the η Carinae variables
1999
Proper motions in the ejecta of η Carinae with a 50 year baseline
1998
The infrared morphology of nη Carinae
1998

HST and infrared images of the circumstellar environment of the cool hypergiant IRC+10420
1997

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Publications (312)