Search Results - "Hutchison, Taylor A."
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On the Stellar Populations of Galaxies at z = 9–11: The Growth of Metals and Stellar Mass at Early Times
Published in The Astrophysical journal (01-03-2022)“…We present a detailed stellar population analysis of 11 bright (H < 26.6) galaxies at z=9−11 (three spectroscopically confirmed) to constrain the chemical…”
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Near-infrared Spectroscopy of Galaxies During Reionization: Measuring C iii] in a Galaxy at z = 7.5
Published in The Astrophysical journal (10-07-2019)“…We present Keck/MOSFIRE H-band spectroscopy targeting C iii] λ1907, 1909 in a z = 7.5056 galaxy previously identified via Ly emission. We detect strong line…”
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Spectral Templates Optimal for Selecting Galaxies at z > 8 with the JWST
Published in The Astrophysical journal (01-12-2023)“…Abstract The selection of high-redshift galaxies often involves spectral energy distribution (SED) fitting to photometric data, an expectation for…”
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Using [Ne v]/[Ne iii] to Understand the Nature of Extreme-ionization Galaxies
Published in The Astrophysical journal (01-08-2023)“…Abstract Spectroscopic studies of extreme-ionization galaxies (EIGs) are critical to our understanding of exotic systems throughout cosmic time. These EIGs…”
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CLEAR: High-ionization [Ne v] λ3426 Emission-line Galaxies at 1.4 < z < 2.3
Published in The Astrophysical journal (01-05-2023)“…Abstract We analyze a sample of 25 [Ne v ] ( λ 3426) emission-line galaxies at 1.4 < z < 2.3 using Hubble Space Telescope/Wide Field Camera 3 G102 and G141…”
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TEMPLATES: Direct Abundance Constraints for Two Lensed Lyman-break Galaxies
Published in The Astrophysical journal (01-11-2024)“…Abstract Using integrated spectra for two gravitationally lensed galaxies from the JWST TEMPLATES Early Release Science program, we analyze faint auroral…”
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TEMPLATES: Characterization of a Merger in the Dusty Lensing SPT0418–47 System
Published in The Astrophysical journal (01-05-2024)“…Abstract We present JWST and Atacama Large Millimeter/submillimeter Array (ALMA) imaging for the lensing system SPT0418−47, which includes a strongly lensed,…”
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CEERS Epoch 1 NIRCam Imaging: Reduction Methods and Simulations Enabling Early JWST Science Results
Published in Astrophysical journal. Letters (01-03-2023)“…Abstract We present the data release and data reduction process for the Epoch 1 NIRCam observations for the Cosmic Evolution Early Release Science Survey…”
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A Census of the Bright z = 8.5–11 Universe with the Hubble and Spitzer Space Telescopes in the CANDELS Fields
Published in The Astrophysical journal (01-03-2022)“…Abstract We present the results from a new search for candidate galaxies at z ≈ 8.5–11 discovered over the 850 arcmin 2 area probed by the Cosmic Assembly…”
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Searching for Islands of Reionization: A Potential Ionized Bubble Powered by a Spectroscopic Overdensity at z = 8.7
Published in The Astrophysical journal (01-05-2022)“…Abstract We present the results from a spectroscopic survey using the MOSFIRE near-infrared spectrograph on the 10 m Keck telescope to search for Ly α emission…”
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11
Texas Spectroscopic Search for Lyα Emission at the End of Reionization. III. The Lyα Equivalent-width Distribution and Ionized Structures at z > 7
Published in The Astrophysical journal (01-12-2020)“…Lyα emission from galaxies can be utilized to characterize the ionization state in the intergalactic medium (IGM). We report our search for Lyα emission at z >…”
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12
Confirmation and refutation of very luminous galaxies in the early Universe
Published in Nature (London) (26-10-2023)“…During the first 500 million years of cosmic history, the first stars and galaxies formed, seeding the Universe with heavy elements and eventually reionizing…”
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Spectroscopic Confirmation of CEERS NIRCam-selected Galaxies at z ≃ 8–10
Published in Astrophysical journal. Letters (01-07-2023)“…Abstract We present JWST/NIRSpec prism spectroscopy of seven galaxies selected from Cosmic Evolution Early Release Science (CEERS) survey NIRCam imaging with…”
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Hidden Little Monsters: Spectroscopic Identification of Low-mass, Broad-line AGNs at z > 5 with CEERS
Published in Astrophysical journal. Letters (01-09-2023)“…Abstract We report on the discovery of two low-luminosity, broad-line active galactic nuclei (AGNs) at z > 5 identified using JWST NIRSpec spectroscopy from…”
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CEERS Spectroscopic Confirmation of NIRCam-selected z ≳ 8 Galaxy Candidates with JWST/NIRSpec: Initial Characterization of Their Properties
Published in Astrophysical journal. Letters (01-06-2023)“…Abstract We present JWST NIRSpec spectroscopy for 11 galaxy candidates with photometric redshifts of z ≃ 9 − 13 and M UV ∈ [ −21, −18] newly identified in…”
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Spatial variations in aromatic hydrocarbon emission in a dust-rich galaxy
Published in Nature (London) (22-06-2023)“…Dust grains absorb half of the radiation emitted by stars throughout the history of the universe, re-emitting this energy at infrared wavelengths 1 – 3 …”
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High-redshift Galaxy Candidates at z = 9–10 as Revealed by JWST Observations of WHL0137-08
Published in The Astrophysical journal (01-09-2023)“…Abstract We report the discovery of four galaxy candidates observed 450–600 Myr after the Big Bang with photometric redshifts between z ∼ 8.3 and 10.2 measured…”
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NGDEEP Epoch 1: The Faint End of the Luminosity Function at z ∼ 9–12 from Ultradeep JWST Imaging
Published in Astrophysical journal. Letters (01-09-2023)“…Abstract We present a robust sample of very high redshift galaxy candidates from the first epoch of JWST/NIRCam imaging from the Next Generation Deep…”
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Texas Spectroscopic Search for Lyα Emission at the End of Reionization. II. The Deepest Near-infrared Spectroscopic Observation at z ≳ 7
Published in The Astrophysical journal (01-06-2019)“…Realizing the utility of Lyα emission to trace the evolution of the intergalactic medium (IGM) during the epoch of reionization requires deep spectroscopy…”
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JWST’s PEARLS: TN J1338–1942 – I. Extreme jet-triggered star formation in a z = 4.11 luminous radio galaxy
Published in Monthly notices of the Royal Astronomical Society (02-05-2023)“…ABSTRACT We present the first JWST observations of the z = 4.11 luminous radio galaxy TN J1338–1942, obtained as part of the ‘Prime Extragalactic Areas for…”
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