The 14 Her Planetary System: Companion Masses and Architecture from Radial Velocities and Astrometry by G. F. Benedict, B. E. McArthur, E. P. Nelan, J. L. Bean

“…Radial velocities obtained with the Hobby–Eberly Telescope and from the literature now span over 25 years. …”
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Cosmological 3D H I gas map with HETDEX Ly alpha emitters and eBOSS QSOs at z=2: IGM-Galaxy/QSO connection and a similar to 40 Mpc scale giant H ii bubble candidate by Mukae, S, Ouchi, M, Hill, GJ, Gebhardt, K, Cooper, EM, Jeong, D, Saito, S, Fabricius, M, Gawiser, E, Ciardullo, R, Farrow, D, Davis, D, Zeimann, G, Finkelstein, SL, Gronwall, C, Liu, C, Zhang, Y, Byrohl, C, Ono, Y, Schneider, DP, Jarvis, MJ, Casey, CM, Mawatari, K

“…We present cosmological (30−400 Mpc) distributions of neutral hydrogen (H i) in the intergalactic medium (IGM) traced by Lyα emitters (LAEs) and QSOs at z = 2.1–2.5, selected with the data of the ongoing Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) and the eBOSS survey. …”

High Lithium Abundance Connection with the Chromospheric Helium in Red Giants: Spectroscopic and Asteroseismic Analyses by Anohita Mallick, Christopher Sneden, Bacham E. Reddy, Melike Afşar

“…Near-IR observations of the He i λ 10830 line were obtained with the high-resolution Habitable-zone Planet Finder spectrograph on the Hobby–Eberly Telescope. We find high Li abundances and strong He i lines exclusively among RC giants, with their absence in red giant branch stars suggesting a shared origin linked to the He flash. …”
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Nondetection of Helium in the Hot Jupiter WASP-48b by Katherine A. Bennett, Seth Redfield, Antonija Oklopčić, Ilaria Carleo, Joe P. Ninan, Michael Endl

“…The data were collected using the Habitable-zone Planet Finder spectrograph on the Hobby–Eberly Telescope. Observations were taken over the course of seven nights, from which we obtain three transits. …”
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A Detailed Look at a Trio of Changing-look Quasars: Spectral Energy Distributions and the Dust Extinction Test by Laura Duffy, Michael Eracleous, Jessie C. Runnoe, John J. Ruan, Scott F. Anderson, Sabrina Dimassimo, Paul Green, Stephanie LaMassa

“…In order to constrain the cause of the dramatic variability, we obtained contemporaneous Hubble Space Telescope ultraviolet and Hobby Eberly Telescope optical spectra of three CLQs caught in their low state. …”
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First HETDEX spectroscopic determinations of Lyα and UV luminosity functions at z = 2–3: bridging a gap between faint AGNs and bright galaxies by Zhang, Y, Ouchi, M, Gebhardt, K, Cooper, EM, Liu, C, Davis, D, Jeong, D, Farrow, DJ, Finkelstein, SL, Gawiser, E, Hill, GJ, Harikane, Y, Kakuma, R, Acquaviva, V, Casey, CM, Fabricius, M, Hopp, U, Jarvis, MJ, Landriau, M, Mawatari, K, Mukae, S, Ono, Y, Sakai, N, Schneider, DP

“…We present Lyα and ultraviolet (UV)-continuum luminosity functions (LFs) of galaxies and active galactic nuclei (AGNs) at z = 2.0-3.5 determined by the untargeted optical spectroscopic survey of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). We combine deep Subaru imaging with HETDEX spectra resulting in 11.4 deg2 of fiber spectra sky coverage, obtaining 18,320 galaxies spectroscopically identified with Lyα emission, 2126 of which host type 1 AGNs showing broad (FWHM > 1000 km s-1) Lyα emission lines. …”

An Improved Transit Measurement for a 2.4[subscript ⊕] Planet Orbiting A Bright Mid-M Dwarf K2–28 by Chen, Ge, Knutson, Heather A., Dressing, Courtney D., Morley, Caroline V., Werner, Michael, Gorjian, Varoujan, Beichman, Charles, Benneke, Björn, Christiansen, Jessie L., Ciardi, David, Crossfield, Ian, Howell, Steve B., Krick, Jessica E., Livingston, John, Morales, Farisa Y., Schlieder, Joshua E.

“…We also note that this system is a favorable target for near-infrared radial velocity instruments on larger telescopes (e.g., the Habitable Planet Finder on the Hobby-Eberly Telescope), making it one of only a handful of small, cool planets accessible with this technique. …”
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The hot-Jupiter Kepler-17b: Discovery, obliquity from stroboscopic starspots, and atmospheric characterization by Demory, Brice-Olivier, Seager, Sara, Winn, Joshua Nathan

“…The planet has an orbital period of 1.486 days, and radial velocity measurements from the Hobby-Eberly Telescope show a Doppler signal of 419.5[superscript +13.3][subscript –15.6] m s[superscript –1]. …”
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A Bayesian Approach to Inferring Accretion Signatures in Young Stellar Objects: A Case Study with VIRUS by Lauren Halstead Willett, Joe P. Ninan, Suvrath Mahadevan, Gregory R. Zeimann, Steven Janowiecki, Gary J. Hill

“…We develop a Bayesian framework to determine the accretion rates of a sample of 15 YSOs using archival data from the VIRUS spectrograph ( R  ∼ 800, 3500–5500 Å) on the Hobby–Eberly Telescope. We are publicly releasing our developed tool, dubbed nuts-for-ysos , as a Python package, which can also be applied to other spectroscopic data sets ( https://github.com/laurenwillett/nuts-for-ysos ). …”
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A Search for Gas-Rich Dwarf Galaxies in the Local Universe with ALFALFA and the WIYN One Degree Imager by Katherine L. Rhode, Nicholas J. Smith, William F. Janesh, John J. Salzer, Elizabeth A. K. Adams, Martha P. Haynes, Steven Janowiecki, John M. Cannon

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Spectroscopic Survey of Faint Planetary-nebula Nuclei. V. The EGB 6-type Central Star of Abell 57 by Howard E. Bond, Akshat S. Chaturvedi, Robin Ciardullo, Klaus Werner, Gregory R. Zeimann, Michael H. Siegel

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The Epoch of Giant Planet Migration Planet Search Program. II. A Young Hot Jupiter Candidate around the AB Dor Member HS Psc by Quang H. Tran, Brendan P. Bowler, William D. Cochran, Samuel Halverson, Suvrath Mahadevan, Joe P. Ninan, Paul Robertson, Guđmundur Stefánsson, Ryan C. Terrien

“…Using radial velocities over 4 yr from the Habitable-zone Planet Finder spectrograph at the Hobby–Eberly Telescope, we find a periodic signal of ${P}_{b}={3.986}_{-0.003}^{+0.044}$ days. …”
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HETDEX Public Source Catalog 1: 220 K Sources Including Over 50 K Lyα Emitters from an Untargeted Wide-area Spectroscopic Survey by Erin Mentuch Cooper, Karl Gebhardt, Dustin Davis, Daniel J. Farrow, Chenxu Liu, Gregory Zeimann, Robin Ciardullo, John J. Feldmeier, Niv Drory, Donghui Jeong, Barbara Benda, William P. Bowman, Michael Boylan-Kolchin, Óscar A. Chávez Ortiz, Maya H. Debski, Mona Dentler, Maximilian Fabricius, Rameen Farooq, Steven L. Finkelstein, Eric Gawiser, Caryl Gronwall, Gary J. Hill, Ulrich Hopp, Lindsay R. House, Steven Janowiecki, Hasti Khoraminezhad, Wolfram Kollatschny, Eiichiro Komatsu, Martin Landriau, Maja Lujan Niemeyer, Hanshin Lee, Phillip MacQueen, Ken Mawatari, Brianna McKay, Masami Ouchi, Jennifer Poppe, Shun Saito, Donald P. Schneider, Jan Snigula, Benjamin P. Thomas, Sarah Tuttle, Tanya Urrutia, Laurel Weiss, Lutz Wisotzki, Yechi Zhang, The HETDEX collaboration

“…We present the first publicly released catalog of sources obtained from the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). HETDEX is an integral field spectroscopic survey designed to measure the Hubble expansion parameter and angular diameter distance at 1.88 < z < 3.52 by using the spatial distribution of more than a million Ly α -emitting galaxies over a total target area of 540 deg ^2 . …”
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Gas-rich, Field Ultra-diffuse Galaxies Host Few Gobular Clusters by Michael G. Jones, Ananthan Karunakaran, Paul Bennet, David J. Sand, Kristine Spekkens, Burçin Mutlu-Pakdil, Denija Crnojević, Steven Janowiecki, Lukas Leisman, Catherine E. Fielder

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Identifying Active Galactic Nuclei at z ∼ 3 from the HETDEX Survey Using Machine Learning by Valentina Tardugno Poleo, Steven L. Finkelstein, Gene Leung, Erin Mentuch Cooper, Karl Gebhardt, Daniel J. Farrow, Eric Gawiser, Greg Zeimann, Donald P. Schneider, Leah Morabito, Daniel Mock, Chenxu Liu

“…We used data from the Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) to study the incidence of AGN in continuum-selected galaxies at z ∼ 3. …”
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Multi-Observatory Research of Young Stellar Energetic Flares (MORYSEF): X-Ray-flare-related Phenomena and Multi-epoch Behavior by Konstantin V. Getman, Eric D. Feigelson, Abygail R. Waggoner, L. Ilsedore Cleeves, Jan Forbrich, Joe P. Ninan, Oleg Kochukhov, Vladimir S. Airapetian, Sergio A. Dzib, Charles J. Law, Christian Rab

“…This study is part of a multi-observatory project to explore stellar surface magnetic fields (with the Hobby–Eberly Telescope Habitable-zone Planet Finder, HET-HPF), particle ejections (with the Very Long Baseline Array, VLBA), and disk ionization (with the Atacama Large Millimeter/submillimeter Array, ALMA) immediately following the detection of PMS superflares with Chandra. …”
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The Spitzer–HETDEX Exploratory Large-Area Survey. IV. Model-based Multiwavelength Photometric Catalog by Gene C. K. Leung, Steven L. Finkelstein, John R. Weaver, Casey Papovich, Rebecca L. Larson, Katherine Chworowsky, Robin Ciardullo, Eric Gawiser, Caryl Gronwall, Shardha Jogee, Lalitwadee Kawinwanichakij, Rachel S. Somerville, Isak G. B. Wold, L. Y. Aaron Yung

“…SHELA covers an ∼27 deg ^2 field within the footprint of the Hobby–Eberly Telescope Dark Energy Experiment (HETDEX). Here we present new DECam imaging and an rizK _s band–selected catalog of four million sources extracted using a fully model-based approach. …”
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The McDonald Accelerating Stars Survey: Architecture of the Ancient Five-planet Host System Kepler-444 by Zhoujian Zhang, Brendan P. Bowler, Trent J. Dupuy, Timothy D. Brandt, G. Mirek Brandt, William D. Cochran, Michael Endl, Phillip J. MacQueen, Kaitlin M. Kratter, Howard T. Isaacson, Kyle Franson, Adam L. Kraus, Caroline V. Morley, Yifan Zhou

“…We have measured the system’s relative astrometry using the adaptive optics imaging from Keck/NIRC2 and Kepler-444 A’s radial velocities from the Hobby-Eberly Telescope and reanalyzed relative radial velocities between BC and A from Keck/HIRES. …”
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HETDEX-LOFAR Spectroscopic Redshift Catalog by Maya H. Debski, Gregory R. Zeimann, Gary J. Hill, Donald P. Schneider, Leah Morabito, Gavin Dalton, Matt J. Jarvis, Erin Mentuch Cooper, Robin Ciardullo, Eric Gawiser, Nika Jurlin

“…We combine the power of blind integral field spectroscopy from the Hobby–Eberly Telescope (HET) Dark Energy Experiment (HETDEX) with sources detected by the Low Frequency Array (LOFAR) to construct the HETDEX-LOFAR Spectroscopic Redshift Catalog. …”
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Exploring the Structures and Substructures of the Andromeda Satellite Dwarf Galaxies Cassiopeia III, Perseus I, and Lacerta I by Katherine L. Rhode, Nicholas J. Smith, Denija Crnojevic, David J. Sand, Ryan A. Lambert, Enrico Vesperini, Madison V. Smith, Steven Janowiecki, John J. Salzer, Ananthan Karunakaran, Kristine Spekkens

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