KMap
Dr. Bender uses near-infrared and visible light, high-resolution, high-contrast spectroscopy to directly measure the orbital dynamics and characterize the atmospheric structure of faint binary companions, including giant exoplanets, brown dwarfs, and low-mass stars. He has extensive experience designing and writing algorithms and software for the precision analysis of ground-based spectroscopic data, and has pioneered new techniques for precisely correcting the effects of the Earth's atmosphere on astronomical spectral.

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Courses
  • IOA
    Introduction to Observational Astronomy

  • IS
    Instrumentation and Statistic

Grants
  • Funding agency logo
    WIYN 2022A-224875, Direct Detection of Reflected Light from 51 Pegasi b

    Principal Investigator (PI)

    2023

    $6.0K
    Active
  • Funding agency logo
    The Sun as a Star: Exploring Stellar Activity with NASA's Flagship Doppler RV Instrument

    Principal Investigator (PI)

    2022

    $13.7K
    Active
  • Funding agency logo
    NEID Operations Maintenance

    Principal Investigator (PI)

    2020

    $808.2K
    Active
  • Funding agency logo
    Collaborative Research: An Agile Electro-Optic Frequency Comb for Precision Near-Infrared Radial Velocity Spectroscopy with the Habitable Zone Planet Finder

    Principal Investigator (PI)

    2020

    $142.1K
    Active
  • Funding agency logo
    Cameras for SDSS-V

    Co-Investigator (COI)

    2019

    $1.0M
    Active
  • Funding agency logo
    The Sun as a Star: Exploring Stellar Activity with NASA's Flagship Doppler Radial Velocity Instrument

    Principal Investigator (PI)

    2021

    $21.8K
  • Funding agency logo
    The Sun as a Star: Exploring Stellar Activity with NASA's Flagship Doppler RV Instrument

    Principal Investigator (PI)

    2021

    $14.1K
  • Funding agency logo
    Towards Tranquil Terrestrial Worlds Orbiting Tiny, Turbulent Stars: Next-Generation Algorithms to Reveal Nearby ExoEarths Using Near-Infrared Doppler Spectroscopy

    Principal Investigator (PI)

    2017

    $45.4K
  • Funding agency logo
    An Extreme Precision Doppler Spectroscopy for the US O/IR System

    Principal Investigator (PI)

    2016

    $365.5K
  • Funding agency logo
    Collaborative Research: A Uniform Sample of Kepler Eclipsing Binaries as Benchmark Stars to Constrain Stellar Models and Evolution at the Bottom of the Main Sequence

    Principal Investigator (PI)

    2016

    $126.7K
News
  • Instrument Ready to Discover New Planets

    2021

  • Planet Discovery Machine Atop Kitt Peak Sees First Light

    2020

Publications (85)
Recent
  • A Harsh Test of Far-Field Scrambling with the Habitable Zone Planet Finder and the Hobby Eberly Telescope

    2021

  • Target Prioritization and Observing Strategies for the NEID Earth Twin Survey

    2021

  • TOI-532b: The Habitable-zone Planet Finder confirms a Large Super Neptune in the Neptune Desert orbiting a metal-rich M-dwarf host

    2021

  • The Habitable-zone Planet Finder Detects a Terrestrial-mass Planet Candidate Closely Orbiting Gliese 1151: The Likely Source of Coherent Low-frequency Radio Emission from an Inactive Star

    2021

  • Contrast and Temperature Dependence of Multi-epoch High-resolution Cross-correlation Exoplanet Spectroscopy

    2021

  • Nondetection of Helium in the Upper Atmospheres of TRAPPIST-1b, e, and f

    2021

  • Broadband stability of the Habitable Zone Planet Finder Fabry-P'erot etalon calibration system: evidence for chromatic variation

    2021

  • Chemical Compositions of Red Giant Stars from Habitable Zone Planet Finder Spectroscopy

    2021

  • Reinvestigation of the Multiepoch Direct Detections of HD 88133 b and Upsilon Andromedae b

    2021

  • Stellar Activity Manifesting at a One-year Alias Explains Barnard b as a False Positive

    2021

  • Final Targeting Strategy for the Sloan Digital Sky Survey IV Apache Point Observatory Galactic Evolution Experiment 2 North Survey

    2021

  • Solar Contamination in Extreme-precision Radial-velocity Measurements: Deleterious Effects and Prospects for Mitigation

    2020

  • The Habitable Zone Planet Finder Reveals a High Mass and Low Obliquity for the Young Neptune K2-25b

    2020

  • The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra

    2020

  • Evidence for He I 10830 {r{A} Absorption during the Transit of a Warm Neptune around the M-dwarf GJ 3470 with the Habitable-zone Planet Finder}

    2020

  • TOI-1728b: The Habitable-zone Planet Finder Confirms a Warm Super-Neptune Orbiting an M-dwarf Host

    2020

  • Persistent Starspot Signals on M Dwarfs: Multiwavelength Doppler Observations with the Habitable-zone Planet Finder and Keck/HIRES

    2020

  • Simulating the Multi-epoch Direct Detection Technique to Isolate the Thermal Emission of the Non-transiting Hot Jupiter HD187123b

    2020

  • A Sub-Neptune-sized Planet Transiting the M2.5 Dwarf G 9-40: Validation with the Habitable-zone Planet Finder

    2020

  • A Mini-Neptune and a Radius Valley Planet Orbiting the Nearby M2 Dwarf TOI-1266 in Its Venus Zone: Validation with the Habitable-zone Planet Finder

    2020

  • The NEID spectrometer: fibre injection system design

    2020

  • Ghosts of NEID's past

    2020

  • A Warm Jupiter Transiting an M Dwarf: A TESS Single-transit Event Confirmed with the Habitable-zone Planet Finder

    2020

  • TOI-150: A Transiting Hot Jupiter in the TESS Southern CVZ

    2019

  • Improving the thermal stability of a CCD through clocking

    2019

  • Stellar spectroscopy in the near-infrared with a laser frequency comb

    2019

  • The SDSS-HET Survey of Kepler Eclipsing Binaries. Description of the Survey and First Results

    2019

  • The Algorithms Behind the HPF and NEID Pipeline

    2019

  • Ultrastable environment control for the NEID spectrometer: design and performance demonstration

    2019

  • Impact of crosshatch patterns in H2RGs on high-precision radial velocity measurements: exploration of measurement and mitigation paths with the Habitable-Zone Planet Finder

    2019

  • Kepler-730: A Hot Jupiter System with a Close-in, Transiting, Earth-sized Planet

    2019

  • The Effects of Telluric Contamination in Iodine-calibrated Precise Radial Velocities*(?) Based on observations obtained at the Keck Observatory, which is operated by the University of California. The Keck Observatory was made possible by the generous financial support of the W. M. Keck Foundation.

    2019

  • The Rotation of M Dwarfs Observed by the Apache Point Galactic Evolution Experiment

    2018

  • Ground- and Space-based Detection of the Thermal Emission Spectrum of the Transiting Hot Jupiter KELT-2Ab

    2018

  • The NEID precision radial velocity spectrometer: Optical design of the port adapter and ADC

    2018

  • Want a PEPSI? Performance status of the recently commissioned high-resolution spectrograph and polarimeter for the 2x8.4m Large Binocular Telescope

    2018

  • Elemental Abundances of Kepler Objects of Interest in APOGEE. I. Two Distinct Orbital Period Regimes Inferred from Host Star Iron Abundances

    2018

  • Forty-four New and Known M-dwarf Multiples in the SDSS-III/APOGEE M-dwarf Ancillary Science Sample

    2018

  • Overview of the spectrometer optical fiber feed for the Habitable-zone Planet Finder

    2018

  • The NEID precision radial velocity spectrometer: port adapter overview, requirements, and test plan

    2018

  • The Habitable-Zone Planet Finder: Improved flux image generation algorithms for H2RG up-the-ramp data

    2018

  • Kepler-503b: An Object at the Hydrogen Burning Mass Limit Orbiting a Subgiant Star

    2018

  • The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment

    2017

  • Detection of Water Vapor in the Thermal Spectrum of the Non-transiting Hot Jupiter Upsilon Andromedae b

    2017

  • Toward Space-like Photometric Precision from the Ground with Beam-shaping Diffusers

    2017

  • Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe

    2017

  • Target Selection for the SDSS-IV APOGEE-2 Survey

    2017

  • TESTING THE ASTEROSEISMIC SCALING RELATIONS FOR RED GIANTS WITH ECLIPSING BINARIES OBSERVED BY KEPLER

    2016

  • Ultra-stable temperature and pressure control for the Habitable zone Planet Finder spectrograph

    2016

  • Measuring extended red sensitivity in a 1.7 mu m-cutoff HgCdTe detector array

    2016

  • A system to provide sub-milliKelvin temperature control at T similar to 300K for extreme precision optical radial velocimetry

    2016

  • EVIDENCE FOR THE DIRECT DETECTION OF THE THERMAL SPECTRUM OF THE NON-TRANSITING HOT GAS GIANT HD 88133 b

    2016

  • The instrument control software package for the Habitable-Zone Planet Finder Spectrometer

    2016

  • A VERSATILE TECHNIQUE TO ENABLE SUB-MILLI-KELVIN INSTRUMENT STABILITY FOR PRECISE RADIAL VELOCITY MEASUREMENTS: TESTS WITH THE HABITABLE-ZONE PLANET FINDER

    2016

  • PROXIMA CENTAURI AS A BENCHMARK FOR STELLAR ACTIVITY INDICATORS IN THE NEAR-INFRARED

    2016

  • Design of NEID, an extreme precision Doppler spectrograph for WIYN

    2016

  • M DWARF LUMINOSITY, RADIUS, AND alpha-ENRICHMENT FROM I-BAND SPECTRAL FEATURES

    2015

  • A NEAR-INFRARED SPECTROSCOPIC SURVEY OF 886 NEARBY M DWARFS

    2015

  • THE ELEVENTH AND TWELFTH DATA RELEASES OF THE SLOAN DIGITAL SKY SURVEY: FINAL DATA FROM SDSS-III

    2015

  • THE DATA REDUCTION PIPELINE FOR THE APACHE POINT OBSERVATORY GALACTIC EVOLUTION EXPERIMENT

    2015

  • THE APOGEE SPECTROSCOPIC SURVEY OF KEPLER PLANET HOSTS: FEASIBILITY, EFFICIENCY, AND FIRST RESULTS

    2015

  • NEW RED JEWELS IN COMA BERENICES

    2014

  • The Habitable-zone Planet Finder Calibration System

    2014

  • NEAR-IR DIRECT DETECTION OF WATER VAPOR IN TAU BOOTIS b

    2014

  • Developments in simulations and software for a near-infrared precision radial velocity spectrograph

    2014

  • Environmental control system for Habitable-zone Planet Finder (HPF)

    2014

  • THE TENTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY: FIRST SPECTROSCOPIC DATA FROM THE SDSS-III APACHE POINT OBSERVATORY GALACTIC EVOLUTION EXPERIMENT

    2014

  • The Habitable-zone Planet Finder: A status update on the development of a stabilized fiber-fed near-infrared spectrograph for the Hobby-Eberly telescope

    2014

  • THE SDSS-III APOGEE RADIAL VELOCITY SURVEY OF M DWARFS. I. DESCRIPTION OF THE SURVEY AND SCIENCE GOALS

    2013

  • THE PTF ORION PROJECT: A POSSIBLE PLANET TRANSITING A T-TAURI STAR

    2012

  • The Habitable-Zone Planet Finder: A Stabilized Fiber-Fed NIR Spectrograph for the Hobby-Eberly Telescope

    2012

  • A HIGH-RESOLUTION ATLAS OF URANIUM-NEON IN THE H BAND

    2012

  • AN H-BAND SPECTROSCOPIC METALLICITY CALIBRATION FOR M DWARFS

    2012

  • THE METALLICITY OF THE CM DRACONIS SYSTEM

    2012

  • THE SDSS-HET SURVEY OF KEPLER ECLIPSING BINARIES: SPECTROSCOPIC DYNAMICAL MASSES OF THE KEPLER-16 CIRCUMBINARY PLANET HOSTS

    2012

  • A near infrared frequency comb for Y plus J band astronomical spectroscopy

    2012

  • Demonstration of on-sky calibration of astronomical spectra using a 25 GHz near-IR laser frequency comb

    2012

  • The Pathfinder Testbed: Exploring Techniques for Achieving Precision Radial Velocities in the Near-Infrared

    2010

  • THE DETECTION OF LOW-MASS COMPANIONS IN HYADES CLUSTER SPECTROSCOPIC BINARY STARS

    2008

  • The Gl569 multiple system

    2006

  • An upper bound on the 1.6 micron flux ratio of the companion to rho Coronae Borealis

    2005

  • A spectroscopic and photometric study of short-timescale variability in NGC 5548

    2001

  • The 5 degrees diameter ionized halo of the planetary nebula Abell 36

    2001

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