Results 1 to 10 of about 8,506,004 (224)

Kinematical Fluctuations Vary with Galaxy Surface Mass Density

The Astrophysical Journal Letters, 2023
The Galaxy inner parts are generally considered to be optically symmetric, as well as kinematically symmetric for most massive early-type galaxies. At the lower-mass end, many galaxies contain lots of small patches in their velocity maps, causing their ...
Ze-Hao Zhong, Gang Zhao, Hans-Walter Rix, Luis C. Ho   +3 more
doaj   +1 more source

Calibrating Nonparametric Morphological Indicators from JWST Images for Galaxies over 0.5 < z < 3

The Astrophysical Journal
The measurements of morphological indicators of galaxies are often influenced by a series of observational effects. In this study, we utilize a sample of 832 TNG50 simulated galaxies with log( M _* / M _⊙ )> 9 at 0.5 < z < 3 to investigate the ...
Jian Ren, F. S. Liu, Nan Li, Qifan Cui, Pinsong Zhao, Yubin Li, Qi Song, Hassen M. Yesuf, Xian Zhong Zheng   +8 more
doaj   +1 more source

COSMOS-Web: Unraveling the Evolution of Galaxy Size and Related Properties at 2 < z < 10

The Astrophysical Journal Supplement Series
We measure galaxy sizes from 2 
Lilan Yang, Jeyhan S. Kartaltepe, Maximilien Franco, Xuheng Ding, Mark J. Achenbach, Rafael C. Arango-Toro, Caitlin M. Casey, Nicole E. Drakos, Andreas L. Faisst, Steven Gillman, Ghassem Gozaliasl, Marc Huertas-Company, Shuowen Jin, Daizhong Liu, Georgios Magdis, Richard Massey, John D. Silverman, Takumi S. Tanaka, Si-Yue Yu, Hollis B. Akins, Natalie Allen, Olivier Ilbert, Anton M. Koekemoer, Henry Joy McCracken, Louise Paquereau, Jason Rhodes, Brant E. Robertson, Marko Shuntov, Sune Toft   +28 more
doaj   +1 more source

Evolution of the morphology-density and morphology-mass relations of quiescent galaxies at 0.5 < z < 2.5 in the COSMOS-Web survey

Astronomy & Astrophysics
Within the lambda cold dark matter (ΛCDM) cosmological framework, the interplay between galaxy morphology, stellar mass, and environment remains uncertain at z > 1.
Fang Guanwen, Su Yuguo, Lu Shiying, Lin Zesen, Kong Xu   +4 more
doaj   +1 more source

The Effect of Environment on the Properties of the Most Massive Galaxies at 0.5 < z < 2.5 in the COSMOS-DASH Field

The Astrophysical Journal, 2023
How the environment influences the most massive galaxies is still unclear. To explore the effects of the environment on morphology and star formation in the most massive galaxies at high redshift, we select galaxies with stellar mass $\mathrm{log}({M}_ ...
Jie Song, GuanWen Fang, Yizhou Gu, Zesen Lin, Xu Kong   +4 more
doaj   +1 more source

UVCANDELS: The Role of Dust on the Stellar Mass–Size Relation of Disk Galaxies at 0.5 ≤ z ≤ 3.0

The Astrophysical Journal
We use the Ultraviolet Imaging of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey fields (UVCANDELS) to measure half-light radii in the rest-frame far-UV for ∼16,000 disk-like galaxies over 0.5 ≤ z ≤ 3. We compare these results to rest-
Kalina V. Nedkova, Marc Rafelski, Harry I. Teplitz, Vihang Mehta, Laura DeGroot, Swara Ravindranath, Anahita Alavi, Alexander Beckett, Norman A. Grogin, Boris Häußler, Anton M. Koekemoer, Grecco A. Oyarzún, Laura Prichard, Mitchell Revalski, Gregory F. Snyder, Ben Sunnquist, Xin Wang, Rogier A. Windhorst, Nima Chartab, Christopher J. Conselice, Yicheng Guo, Nimish Hathi, Matthew J. Hayes, Zhiyuan Ji, Keunho J. Kim, Ray A. Lucas, Bahram Mobasher, Robert W. O’Connell, Zahra Sattari, Brent M. Smith, Sina Taamoli, L. Y. Aaron Yung, the UVCANDELS Team   +32 more
doaj   +1 more source

A Multiwavelength Investigation of Dust and Stellar Mass Distributions in Galaxies: Insights from High-resolution JWST Imaging

The Astrophysical Journal, 2023
We study the morphological properties of mid-infrared selected galaxies at 1.0 < z < 1.7 in the SMACS J0723.3-7327 cluster field to investigate the mechanisms of galaxy mass assembly and structural formation at cosmic noon.
Zhaoran Liu, Takahiro Morishita, Tadayuki Kodama   +2 more
doaj   +1 more source

Star Formation Rates, Metallicities, and Stellar Masses on Kiloparsec Scales in TNG50

The Astrophysical Journal
Integral field units have extended our knowledge of galactic properties to kiloparsec (or, sometimes, even smaller) patches of galaxies. These scales are where the physics driving galaxy evolution (feedback, chemical enrichment, etc.) take place ...
Jia Qi, Alex M. Garcia, Davis Robinson, Paul Torrey, Jorge Moreno, Kara N. Green, Aaron S. Evans, Z. S. Hemler, Lars Hernquist, Sara L. Ellison   +9 more
doaj   +1 more source

Deep Neutral Hydrogen Observations of the Early-type Galaxy NGC 2768: Collided by a Newly Discovered Satellite Galaxy?

The Astrophysical Journal
We present the results of a deep neutral hydrogen (H i ) observation of the early-type galaxy NGC 2768 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST).
Nai-Ping Yu, Ming Zhu, Jin-Long Xu, Chuan-Peng Zhang, Xiao-Lan Liu, Peng Jiang   +5 more
doaj   +1 more source

An Equilibrium Model of the Galaxy Determined by Element Abundance Gradients

The Astrophysical Journal
We present a method to determine the gravitational potential of the Milky Way from measurements of the locations, velocities, and element abundances of stars in the Galactic disk.
Lawrence M. Widrow, David W. Hogg, Danny Horta, Haochaun Li, Adrian M. Price-Whelan   +4 more
doaj   +1 more source