Results 91 to 100 of about 103,703 (233)

Creation Field Cosmological Model with Variable Cosmological Term (Λ) in Bianchi Type III Space‐Time

Advances in High Energy Physics, Volume 2024, Issue 1, 2024.
The paper is devoted to the study of cosmological models with time‐varying cosmological term (Λ) in the presence of creation field in the framework of Bianchi type III space‐time. To obtain deterministic model of the universe, we have assumed Λ ∝ 1/R3, where R is the scale factor, for steady state cosmology and creation field, and shear (σ) is ...
Raj Bali, Seema Saraf, Donato Nicolo
wiley   +1 more source

ALESS-JWST: Joint (Sub)kiloparsec JWST and ALMA Imaging of z ~ 3 Submillimeter Galaxies Reveals Heavily Obscured Bulge Formation Events

The Astrophysical Journal
We present JWST NIRCam imaging targeting 13 z  ~ 3 infrared-luminous ( L _IR  ∼ 5 × 10 ^12 L _⊙ ) galaxies from the ALESS survey with uniquely deep, high-resolution (0 $\mathop{.}\limits^{\unicode{x02033}}$ 08–0 $\mathop{.}\limits^{^{\prime\prime} }$ 16)
J. A. Hodge, E. da Cunha, S. Kendrew, J. Li, I. Smail, B. A. Westoby, O. Nayak, A. M. Swinbank, C.-C. Chen, F. Walter, P. van der Werf, M. Cracraft, A. Battisti, W. N. Brandt, G. Calistro Rivera, S. C. Chapman, P. Cox, H. Dannerbauer, R. Decarli, M. Frias Castillo, T. R. Greve, K. K. Knudsen, S. Leslie, K. M. Menten, M. Rybak, E. Schinnerer, J. L. Wardlow, A. Weiss   +27 more
doaj   +1 more source

Multivariate Predictors of Lyman Continuum Escape. II. Predicting Lyman Continuum Escape Fractions for High-redshift Galaxies

The Astrophysical Journal
JWST is uncovering the properties of ever-increasing numbers of galaxies at z > 6, during the epoch of reionization. Connecting these observed populations to the process of reionization requires understanding how efficiently they produce Lyman continuum (
Anne E. Jaskot, Anneliese C. Silveyra, Anna Plantinga, Sophia R. Flury, Matthew Hayes, John Chisholm, Timothy Heckman, Laura Pentericci, Daniel Schaerer, Maxime Trebitsch, Anne Verhamme, Cody Carr, Henry C. Ferguson, Zhiyuan Ji, Mauro Giavalisco, Alaina Henry, Rui Marques-Chaves, Göran Östlin, Alberto Saldana-Lopez, Claudia Scarlata, Gábor Worseck, Xinfeng Xu   +21 more
doaj   +1 more source

MAMMOTH-Subaru. IV. Large Scale Structure and Clustering Analysis of Lyα Emitters and Lyα Blobs at z = 2.2–2.3

The Astrophysical Journal
We report the large scale structure and clustering analysis of Ly α emitters (LAEs) and Ly α blobs (LABs) at z  = 2.2–2.3. Using 3341 LAEs, 117 LABs, and 58 bright (Ly α luminosity L _Ly _α  > 10 ^43.4 erg s ^−1 ) LABs at z  = 2.2–2.3 selected with ...
Haibin Zhang, Zheng Cai, Mingyu Li, Yongming Liang, Nobunari Kashikawa, Ke Ma, Yunjing Wu, Qiong Li, Sean D. Johnson, Satoshi Kikuta, Masami Ouchi, Xiaohui Fan, Yuanhang Ning   +12 more
doaj   +1 more source

EPOCHS. I. The Discovery and Star-forming Properties of Galaxies in the Epoch of Reionization at 6.5 < z < 18 with PEARLS and Public JWST Data

The Astrophysical Journal
We present in this paper the discovery, properties, and a catalog of 1165 high-redshift 6.5  12 in our sample and describe their properties. Finally, we note a significant observed excess of galaxies compared to models at z  > 12, revealing a tension ...
Christopher J. Conselice, Nathan Adams, Thomas Harvey, Duncan Austin, Leonardo Ferreira, Katherine Ormerod, Qiao Duan, James Trussler, Qiong Li, Ignas Juodžbalis, Lewi Westcott, Honor Harris, Louise T. C. Seeyave, Asa F. L. Bluck, Rogier A. Windhorst, Rachana Bhatawdekar, Dan Coe, Seth H. Cohen, Cheng Cheng, Simon P. Driver, Brenda Frye, Lukas J. Furtak, Norman A. Grogin, Nimish P. Hathi, Benne W. Holwerda, Rolf A. Jansen, Anton M. Koekemoer, Madeline A. Marshall, Mario Nonino, Aaron Robotham, Jake Summers, Stephen M. Wilkins, Christopher N. A. Willmer, Haojing Yan, Adi Zitrin   +34 more
doaj   +1 more source

The Thickness of Galaxy Disks from z = 5 to 0 Probed by JWST

The Astrophysical Journal Letters
Although a thick disk is a structure prevalent in local disk galaxies and also present in our home Galaxy, its formation and evolution are still unclear.
Jianhui Lian, Li Luo
doaj   +1 more source

BEACON: JWST NIRCam Pure-parallel Imaging Survey. I. Survey Design and Initial Results

The Astrophysical Journal
We introduce the Bias-free Extragalactic Analysis for Cosmic Origins with NIRCam (BEACON) survey, a JWST Cycle 2 program allocated up to 600 pure-parallel hours of observations.
Takahiro Morishita, Charlotte A. Mason, Kimi C. Kreilgaard, Michele Trenti, Tommaso Treu, Benedetta Vulcani, Yechi Zhang, Abdurro’uf, Anahita Alavi, Hakim Atek, Yannick Bahé, Maruša Bradač, Larry D. Bradley, Andrew J. Bunker, Dan Coe, James Colbert, Viola Gelli, Matthew J. Hayes, Tucker Jones, Tadayuki Kodama, Nicha Leethochawalit, Zhaoran Liu, Matthew A. Malkan, Vihang Mehta, Benjamin Metha, Andrew B. Newman, Marc Rafelski, Guido Roberts-Borsani, Michael J. Rutkowski, Claudia Scarlata, Massimo Stiavelli, Ryo A. Sutanto, Kosuke Takahashi, Harry I. Teplitz, Xin Wang   +34 more
doaj   +1 more source

JWST NIRSpec Spectroscopy of the Remarkable Bright Galaxy GHZ2/GLASS-z12 at Redshift 12.34

The Astrophysical Journal
We spectroscopically confirm the M _UV = −20.5 mag galaxy GHZ2/GLASS-z12 to be at redshift z = 12.34. The source was selected via NIRCam photometry in GLASS-JWST Early Release Science data, providing the first evidence of a surprising abundance of bright
Marco Castellano, Lorenzo Napolitano, Adriano Fontana, Guido Roberts-Borsani, Tommaso Treu, Eros Vanzella, Jorge A. Zavala, Pablo Arrabal Haro, Antonello Calabrò, Mario Llerena, Sara Mascia, Emiliano Merlin, Diego Paris, Laura Pentericci, Paola Santini, Tom J. L. C. Bakx, Pietro Bergamini, Guido Cupani, Mark Dickinson, Alexei V. Filippenko, Karl Glazebrook, Claudio Grillo, Patrick L. Kelly, Matthew A. Malkan, Charlotte A. Mason, Takahiro Morishita, Themiya Nanayakkara, Piero Rosati, Eleonora Sani, Xin Wang, Ilsang Yoon   +30 more
doaj   +1 more source

The inefficiency of stellar feedback in driving galactic outflows in massive galaxies at high redshift [PDF]

, 2023
Luigi Bassini, Robert Feldmann, Jindra Gensior, Christopher C. Hayward, Claude‐André Faucher‐Giguère, Elia Cenci, Lichen Liang, Mauro Bernardini   +7 more
openalex   +1 more source

A Steep Decline in the Galaxy Space Density beyond Redshift 9 in the CANUCS UV Luminosity Function

The Astrophysical Journal
We present a new sample of 158 galaxies at redshift z > 7.5 selected from deep James Webb Space Telescope (JWST) NIRCam imaging of five widely separated sight lines in the CANUCS survey.
Chris J. Willott, Guillaume Desprez, Yoshihisa Asada, Ghassan T. E. Sarrouh, Roberto Abraham, Maruša Bradač, Gabe Brammer, Vince Estrada-Carpenter, Kartheik G. Iyer, Nicholas S. Martis, Jasleen Matharu, Lamiya Mowla, Adam Muzzin, Gaël Noirot, Marcin Sawicki, Victoria Strait, Gregor Rihtaršič, Sunna Withers   +17 more
doaj   +1 more source