activity
20202026
most citedThe Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) Survey Design, Reductions, and Detections

120 citations · 439 across the 29 of their papers we have counts for

collaborators

30 papers

astro-ph.GA2026

Population III Host Candidates at : Strong He II and Absent UV Metal Lines in HETDEX Ly Emitters

Mahan Mirza Khanlari, Dustin Davis, Karl Gebhardt +15

Population III (Pop III) stars are expected to produce extremely hard ionizing spectra, yet direct evidence for their signature--strong narrow He II emission with wea…

astro-ph.GA2026

Star formation powers optical line emission from the CGM

Huanian Zhang, Lizhi Xie, Zhijie Qu +9

Using integral field spectroscopy, we explore the disk-halo interface, or the inner circumgalactic medium (CGM), of individual galaxies by constructing and analyzing emission-line…

astro-ph.CO2026

HETDEX [OII] galaxies at : Volume-limited samples and their power spectra

Jeongin Moon, Eiichiro Komatsu, Robin Ciardullo +15

The catalog from the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) Public Data Release 1 (PDR1) contains half a million emission-line-selected [OII] galaxies spread across…

astro-ph.GA2026★ 1 cited

HETDEX Public Data Release 1: Source Catalog 2 and Data Cubes from ~90 sq deg of Integral-Field Optical Spectroscopy

Erin Mentuch Cooper, Karl Gebhardt, Dustin Davis +36

The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) is a wide-field, integral-field spectroscopic survey designed to map the large-scale distribution of Lyman-alpha emitting…

astro-ph.GA2026★ 3 cited

Lyα Nebulae in HETDEX: The Largest Statistical Census Bridging Lyα Halos and Blobs across Cosmic Noon

Erin Mentuch Cooper, Karl Gebhardt, Dustin Davis +20

The Hobby-Eberly Dark Energy Experiment (HETDEX) is an untargeted ~540 deg^2 spectroscopic survey of Lyα emission in the 1.9 < z < 3.5 Universe. In surface brightness, this survey…

astro-ph.CO2025★ 3 cited

DESI Spectroscopy of HETDEX Emission-line Candidates I: Line Discrimination Validation

Martin Landriau, Erin Mentuch Cooper, Dustin Davis +50

The Hobby-Eberly Dark Energy Experiment (HETDEX) is an untargeted spectroscopic galaxy survey that uses Ly emitting galaxies (LAEs) as tracers of 1.9 < z < 3.5 large scale struc…

astro-ph.GA2024

The Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) Active Galactic Nuclei Catalog: the Fourth Data Release

Chenxu Liu, Karl Gebhardt, Erin Mentuch Cooper +7

We present the Active Galactic Nuclei (AGN) catalog from the fourth data release (HDR4) of the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX). HETDEX is an untargete…

astro-ph.GA2023

The Clumpy Structure Of Five Star-bursting Dwarf Galaxies In The MaNGA Survey

Mengting Ju, Jun Yin, Lei Hao +6

The star-forming clumps in star-bursting dwarf galaxies provide valuable insights into the understanding of the evolution of dwarf galaxies. In this paper, we focus on five star-bu…

astro-ph.GA2023

The Pre-explosion Environments and The Progenitor of SN 2023ixf from the Hobby Eberly Telescope Dark Energy Experiment (HETDEX)

Chenxu Liu, Xinlei Chen, Xinzhong Er +20

Supernova (SN) 2023ixf was discovered on May 19th, 2023. The host galaxy, M101, was observed by the Hobby Eberly Telescope Dark Energy Experiment (HETDEX) collaboration over the pe…

astro-ph.GA2023★ 10 cited

HETDEX Public Source Catalog 1 -- Stacking 50K Lyman Alpha Emitters

Dustin Davis, Karl Gebhardt, Erin Mentuch Cooper +25

We describe the ensemble properties of the Lyman Alpha Emitters (LAEs) found in the HETDEX survey's first public data release, HETDEX Public Source Catalog 1 (Mentu…

astro-ph.IM2023★ 8 cited

Using Dark Energy Explorers and Machine Learning to Enhance the Hobby-Eberly Telescope Dark Energy Experiment

Lindsay R. House, Karl Gebhardt, Keely Finkelstein +11

We present analysis using a citizen science campaign to improve the cosmological measures from the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). The goal of HETDEX is to…

astro-ph.GA2023★ 11 cited

Introducing the Texas Euclid Survey for Lyman Alpha (TESLA) Survey: Initial Study Correlating Galaxy Properties to Lyman-Alpha Emission

Oscar A. Chavez Ortiz, Steven L. Finkelstein, Dustin Davis +24

We present the Texas Euclid Survey for Lyman-Alpha (TESLA), a spectroscopic survey in the 10 square degree of the Euclid North Ecliptic Pole (NEP) field. Using TESLA, we study how…

astro-ph.GA2023★ 17 cited

The Stellar Mass - Black Hole Mass Relation at Down to Determined by HETDEX

Yechi Zhang, Masami Ouchi, Karl Gebhardt +14

We investigate the stellar mass - black hole mass () relation with type 1 AGN down to , corresponding t…

astro-ph.GA2023★ 9 cited

Identifying Active Galactic Nuclei at from the HETDEX Survey Using Machine Learning

Valentina Tardugno Poleo, Steven Finkelstein, Gene C. K. Leung +9

We used data from the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) to study the incidence of AGN in continuum-selected galaxies at . From optical and infrared ima…

astro-ph.GA2023★ 50 cited

HETDEX Public Source Catalog 1: 220K Sources Including Over 50K Lyman Alpha Emitters from an Untargeted Wide-area Spectroscopic Survey

Erin Mentuch Cooper, Karl Gebhardt, Dustin Davis +43

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…

astro-ph.GA2023★ 25 cited

The HETDEX Survey: Emission Line Exploration and Source Classification

Dustin Davis, Karl Gebhardt, Erin Mentuch Cooper +20

The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) is an untargeted spectroscopic survey that aims to measure the expansion rate of the Universe at to 1% preci…

astro-ph.GA2023★ 2 cited

Cosmological-Scale Lyman-alpha Forest Absorption Around Galaxies and AGN Probed with the HETDEX and SDSS Spectroscopic Data

Dongsheng Sun, Ken Mawatari, Masami Ouchi +12

We present cosmological-scale 3-dimensional (3D) neutral hydrogen ({\sc Hi}) tomographic maps at over a total of 837 deg in two blank fields that are developed with Ly$…

astro-ph.HE2022★ 3 cited

Searching for Supernovae in HETDEX Data Release 3

J. Vinko, B. P. Thomas, J. C. Wheeler +11

We have extracted 636 spectra taken at the positions of 583 transient sources from the third Data Release of the Hobby-Eberly Telescope Dark Energy eXperiment (HETDEX). The transie…

astro-ph.GA2022★ 4 cited

The Active Galactic Nuclei in the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) III. A red quasar with extremely high equivalent widths showing powerful outflows

Chenxu Liu, Karl Gebhardt, Wolfram Kollatschny +12

We report an Active Galactic Nucleus (AGN) with extremely high equivalent width (EW), EW(LyA+NV,rest)>921 AA in the rest-frame, at z~2.24 in the Hobby-Eberly Telescope Dark Energy…

astro-ph.GA2022★ 11 cited

Stellar Populations of Lyman-alpha Emitting Galaxies in the HETDEX Survey I: An Analysis of LAEs in the GOODS-N Field

Adam P. McCarron, Steven L. Finkelstein, Oscar A. Chavez Ortiz +17

We present the results of a stellar-population analysis of Lyman-alpha emitting galaxies (LAES) in GOODS-N at 1.9 < z < 3.5 spectroscopically identified by the Hobby-Eberly Telesco…

astro-ph.GA2022★ 7 cited

The Active Galactic Nuclei in the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) II. Luminosity Function

Chenxu Liu, Karl Gebhardt, Erin Mentuch Cooper +13

We present the LyA emission line luminosity function (LF) of the Active Galactic Nuclei (AGN) in the first release of the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETD…

astro-ph.GA2022★ 17 cited

Lyα Halos around [O III]-Selected Galaxies in HETDEX

Maja Lujan Niemeyer, William P. Bowman, Robin Ciardullo +13

We present extended Lyman-α (Lyα) emission out to 800 kpc of 1034 [O III]-selected galaxies at redshifts 1.9<z<2.35 using the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX)…

astro-ph.GA2022★ 18 cited

The Active Galactic Nuclei in the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) I. Sample selection

Chenxu Liu, Karl Gebhardt, Erin Mentuch Cooper +16

We present the first Active Galactic Nuclei (AGN) catalog in the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) observed between January 2017 and June 2020. HETDEX i…

astro-ph.GA2022★ 35 cited

Surface Brightness Profile of Lyman- Halos out to 320 kpc in HETDEX

Maja Lujan Niemeyer, Eiichiro Komatsu, Chris Byrohl +18

We present the median-stacked Lyman- surface brightness profile of 968 spectroscopically selected Lyman- emitting galaxies (LAEs) at redshifts in the early data o…