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List of works by Ryan C. Terrien

A Harsh Test of Far-field Scrambling with the Habitable-zone Planet Finder and the Hobby–Eberly Telescope

scientific article published on 30 April 2021

A High-Eccentricity Warm Jupiter Orbiting TOI-4127

scientific article published in 2023

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

scientific article published on 13 November 2020

A Search for Planetary Metastable Helium Absorption in the V1298 Tau System

scientific article published in November 2021

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

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

A close-in puffy Neptune with hidden friends: The enigma of TOI 620

scientific article

A comprehensive radial velocity error budget for next generation Doppler spectrometers

A high-resolution atlas of uranium-neon in the H band

scholarly article

A near-infrared frequency comb for Y+J band astronomical spectroscopy

A near-infrared spectroscopic survey of 886 nearby M dwarfs

scholarly article

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

A versatile technique to enable sub-milli-Kelvin instrument stability for precise radial velocity measurements: tests with the habitable-zone planet finder

scientific article published in the Astrophysical Journal

An In-Depth Look at TOI-3884b: a Super-Neptune Transiting a M4 Dwarf with Persistent Star Spot Crossings

An In-depth Look at TOI-3884b: A Super-Neptune Transiting an M4Dwarf with Persistent Starspot Crossings

scientific article published on 24 May 2023

An extreme test case for planet formation: a close-in Neptune orbiting an ultracool star

scientific article published in December 2023

An h-band spectroscopic metallicity calibration for M dwarfs

Broadband Stability of the Habitable Zone Planet Finder Fabry–Pérot Etalon Calibration System: Evidence for Chromatic Variation

scientific article published on 5 May 2021

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

scientific article published on 19 February 2021

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

scientific article

Detailed Chemical Abundances for a Benchmark Sample of M Dwarfs from the APOGEE Survey

scientific article published in 2022

Detection of p-mode Oscillations in HD 35833 with NEID and TESS

scientific article published on 16 November 2022

ERRATUM: “HABITABLE ZONES AROUND MAIN-SEQUENCE STARS: NEW ESTIMATES” (2013, ApJ, 765, 131)

scholarly article published in The Astrophysical Journal

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

Evidence for He i 10830 Å Absorption during the Transit of a Warm Neptune around the M-dwarf GJ 3470 with the Habitable-zone Planet Finder

scientific article published on 11 May 2020

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

scientific article published in Astronomical Journal

Frequency stability characterization of a broadband fiber Fabry-Pérot interferometer

scientific article published on 01 July 2017

Frequency stability of the mode spectrum of broad bandwidth Fabry-Pérot interferometers

scientific article published on 27 April 2020

GJ 3929: High Precision Photometric and Doppler Characterization of an Exo-Venus and its Hot, Mini-Neptune-mass Companion

Habitable zones around main-sequence stars: new estimates

scientific article published in the Astrophysical Journal

High-resolution Near-infrared Spectroscopy of a Flare around the Ultracool Dwarf vB 10

scientific article published in February 2022

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

scientific article published on 26 October 2019

M dwarf luminosity, radius, and {alpha}-enrichment from I-band spectral features

scholarly article

Measuring the thermal sensitivity of a fiber Fabry-Pérot interferometer

NEID Reveals that The Young Warm Neptune TOI-2076 b Has a Low Obliquity

scientific article published in February 2023

New M, l, and T dwarf companions to nearby stars from the wide-field infrared survey explorer

scientific article published in January 2012

New red jewels in Coma Berenices

scientific article published in the Astrophysical Journal

Observing the Sun as a Star: Design and Early Results from the NEID Solar Feed

scientific article published on 22 March 2022

Occurrence rates of planets orbiting M Stars: applying ABC to Kepler DR25, Gaia DR2, and 2MASS data

scientific article

Optical Frequency Comb Calibrated Near Infrared Solar Heterodyne Spectroscopy

scientific article published in 2020

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

scientific article published on 9 July 2020

Rotational Modulation of Spectroscopic Zeeman Signatures in Low-mass Stars

scientific article published in March 2022

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

scientific article published on 18 March 2020

Stable Fiber-illumination for Extremely Precise Radial Velocities with NEID

scientific article published on 15 August 2023

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

scientific article published on 15 July 2021

Stellar Characterization of M Dwarfs from the APOGEE Survey: A Calibrator Sample for M-dwarf Metallicities

scientific article published on 20 February 2020

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

scientific article published on 20 February 2019

TOI-1696 and TOI-2136: Constraining the Masses of Two Mini-Neptunes with HPF

scholarly article

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

scientific article published on 10 August 2020

TOI-1859b: A 64-Day Warm Jupiter on an Eccentric and Misaligned Orbit

TOI-2015b: A Warm Neptune with Transit Timing Variations Orbiting an Active mid M Dwarf

TOI-5205b: A Jupiter transiting an M dwarf near the Convective Boundary

scientific article published on 21 February 2023

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

scientific article published in 2021

TOI-5344 b: A Saturn-like planet orbiting a super-Solar metallicity M0 dwarf

TOI-5375 B: A Very Low Mass Star at the Hydrogen-burning Limit Orbiting an Early M-type Star

scientific article published on 28 April 2023

The APOGEE spectroscopic survey of Kepler planet hosts: feasibility, efficiency, and first results

scientific article published in Astronomical Journal

The Active Chromospheres of Lithium-rich Red Giant Stars

scientific article published in November 2022

The Death of Vulcan: NEID Reveals That the Planet Candidate Orbiting HD 26965 Is Stellar Activity

journal article from 'The Astronomical Journal' published in 2024

The Epoch of Giant Planet Migration Planet Search Program. II. A Young Hot Jupiter Candidate around the AB Dor Member HS Psc

The Extreme Stellar-signals Project. III. Combining Solar Data from HARPS, HARPS-N, EXPRES, and NEID

scientific article published on 27 September 2023

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

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

scientific article published on 2 August 2018

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

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

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

scientific article published on 9 July 2018

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

scientific article published on 27 July 2018

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

scientific article published in Astronomical Journal

The SDSS-HET survey of Kepler eclipsing binaries: spectroscopic dynamical masses of the Kepler-16 circumbinary planet hosts

scholarly article

The Warm Neptune GJ 3470b Has a Polar Orbit

scientific article published on 26 May 2022

The eleventh and twelfth data releases of the Sloan Digital Sky Survey: final data from SDSS-III

scientific article published in 'The Astrophysical Journal Supplement Series' in July 2015

The habitable-zone planet finder calibration system

The habitable-zone planet finder: a stabilized fiber-fed NIR spectrograph for the Hobby-Eberly Telescope

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

The metallicity of the CM Draconis system

scientific article

The tenth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III apache point observatory galactic evolution experiment

article

The unusual M-dwarf Warm Jupiter TOI-1899~b: Refinement of orbital and planetary parameters

scientific article published on 3 August 2023

Thermal-light heterodyne spectroscopy with frequency comb calibration

scientific article published on 18 February 2022

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