Search Results - "Jung, Intae"
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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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2
Spatially Resolved Stellar Populations of 0.3 < z < 6.0 Galaxies in WHL 0137–08 and MACS 0647+70 Clusters as Revealed by JWST: How Do Galaxies Grow and Quench over Cosmic Time?
Published in The Astrophysical journal (01-03-2023)“…Abstract We study the spatially resolved stellar populations of 444 galaxies at 0.3 < z < 6.0 in two clusters (WHL 0137–08 and MACS 0647+70) and a blank field,…”
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3
CLEAR. II. Evidence for Early Formation of the Most Compact Quiescent Galaxies at High Redshift
Published in The Astrophysical journal (01-08-2020)“…The origin of the correlations between mass, morphology, quenched fraction, and formation history in galaxies is difficult to define, primarily due to the…”
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Star Formation Stochasticity Measured from the Distribution of Burst Indicators
Published in The Astrophysical journal (01-03-2019)“…One of the key questions in understanding galaxy formation and evolution is how starbursts affect the assembly of stellar populations in galaxies over time. We…”
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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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CLEAR: The Gas-phase Metallicity Gradients of Star-forming Galaxies at 0.6 < z < 2.6
Published in The Astrophysical journal (01-12-2021)“…Abstract We report on the gas-phase metallicity gradients of a sample of 238 star-forming galaxies at 0.6 < z < 2.6, measured through deep near-infrared Hubble…”
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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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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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9
ALMA Observation of a z ≳ 10 Galaxy Candidate Discovered with JWST
Published in The Astrophysical journal (01-06-2023)“…Abstract We report the observation by the Atacama Large Millimeter/submillimeter Array (ALMA) of a z ≳ 10 galaxy candidate (GHZ1) discovered from the…”
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10
CLEAR: Survey Overview, Data Analysis, and Products
Published in The Astrophysical journal. Supplement series (01-05-2023)“…Abstract We present an overview of the CANDELS Ly α Emission At Reionization (CLEAR) survey. CLEAR is a 130 orbit program of the Hubble Space Telescope using…”
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CLEAR: Spatially Resolved Emission Lines and Active Galactic Nuclei at 0.6 < z < 1.3
Published in The Astrophysical journal (01-01-2023)“…Abstract We investigate spatially resolved emission-line ratios in a sample of 219 galaxies (0.6 < z < 1.3) detected using the G102 grism on the Hubble Space…”
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JWST NIRSpec High-resolution Spectroscopy of MACS0647–JD at z = 10.167: Resolved [O ii] Doublet and Electron Density in an Early Galaxy
Published in The Astrophysical journal (01-09-2024)“…Abstract We present JWST/NIRSpec high-resolution G395H/F290LP spectroscopy of MACS0647−JD, a gravitationally lensed galaxy merger at z = 10.167. The new…”
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13
Constraints on the Lyman Continuum Escape from Low-mass Lensed Galaxies at 1.3 ≤ z ≤ 3.0
Published in The Astrophysical journal (01-08-2024)“…Low-mass galaxies can significantly contribute to reionization due to their potentially high Lyman continuum (LyC) escape fraction and relatively high space…”
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14
NGDEEP Epoch 1: Spatially Resolved Hα Observations of Disk and Bulge Growth in Star-forming Galaxies at z ∼ 0.6–2.2 from JWST NIRISS Slitless Spectroscopy
Published in Astrophysical journal. Letters (01-03-2024)“…Abstract We study the H α equivalent width (EW(H α )) maps of 19 galaxies at 0.6 < z < 2.2 in the Hubble Ultra Deep Field using NIRISS slitless spectroscopy as…”
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EVIDENCE FOR REDUCED SPECIFIC STAR FORMATION RATES IN THE CENTERS OF MASSIVE GALAXIES AT z = 4
Published in The Astrophysical journal (01-01-2017)“…ABSTRACT We perform the first spatially resolved stellar population study of galaxies in the early universe (z = 3.5-6.5), utilizing the Hubble Space Telescope…”
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16
Sussing merger trees: the impact of halo merger trees on galaxy properties in a semi-analytic model
Published in Monthly notices of the Royal Astronomical Society (21-12-2014)“…A halo merger tree forms the essential backbone of a semi-analytic model for galaxy formation and evolution. Recent studies have pointed out that extracting…”
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Texas Spectroscopic Search for Ly Emission at the End of Reionization. III. The Ly Equivalent-width Distribution and Ionized Structures at z > 7
Published in The Astrophysical journal (01-12-2020)“…Ly emission from galaxies can be utilized to characterize the ionization state in the intergalactic medium (IGM). We report our search for Ly emission at z > 7…”
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EFFECTS OF LARGE-SCALE ENVIRONMENT ON THE ASSEMBLY HISTORY OF CENTRAL GALAXIES
Published in The Astrophysical journal (10-10-2014)“…We examine whether large-scale environment affects the mass assembly history of central galaxies. To facilitate this, we constructed dark matter halo merger…”
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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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