Results 91 to 100 of about 1,606 (187)

JWST/MIRI Reveals the True Number Density of Massive Galaxies in the Early Universe

The Astrophysical Journal Letters
Early JWST studies reporting an unexpected abundance of massive galaxies at z  ∼ 5–8 challenge galaxy formation models in the ΛCDM framework. Previous stellar mass ( M _⋆ ) estimates suffered from large uncertainties due to the lack of rest-frame near ...
Tao Wang, Hanwen Sun, Luwenjia Zhou, Ke Xu, Cheng Cheng, Zhaozhou Li, Yangyao Chen, H. J. Mo, Avishai Dekel, Tiancheng Yang, Yijun Wang, Longyue Chen, Xianzhong Zheng, Zheng Cai, David Elbaz, Y.-S. Dai, J.-S. Huang   +16 more
doaj   +1 more source

Mapping the Galaxy Color–Star Formation Rate Relation with Manifold Learning and Infrared Image Stacking

The Astrophysical Journal
Modern surveys present us with billions of faint galaxies for which we only have broadband images in ∼6–8 optical-to-near-infrared (NIR) filters. Galaxy star formation rates (SFRs) are difficult to estimate accurately without spectroscopic diagnostics or
Yu-Heng Lin, Daniel Masters, Andreas L. Faisst, Harry Teplitz, Olivier Ilbert, Matthieu Bethermin, Shoubaneh Hemmati, Vihang Mehta, Jason D. Rhodes, Gregory L. Walth   +9 more
doaj   +1 more source

Infrared emission from z ∼ 6.5 quasar host galaxies: a direct estimate of dust physical properties

Astronomy & Astrophysics
Quasars at the dawn of cosmic time (z > 6) are fundamental probes for investigating the early coevolution of supermassive black holes and their host galaxy.
Costa M., Decarli R., Pozzi F., Cox P., Meyer R. A., Pensabene A., Venemans B. P., Walter F., Xu F.   +8 more
doaj   +1 more source

A Multiwavelength Evaluation of AGN in the Post-starburst Phase

The Astrophysical Journal
The quenching of star formation is a crucial phase in galaxy evolution. Although feedback from active galactic nuclei (AGN) has been proposed as a key driver of this transition, the lack of strong AGN in nearby quenching galaxies raises questions about ...
Yuanze Luo, Kate Rowlands, Katherine Alatalo, Lauranne Lanz, Timothy Heckman, Elizaveta Sazonova, Pallavi Patil, Omar Almaini, Vincenzo R. D’Onofrio, K. Decker French, Justin Otter, Andreea O. Petric, Namrata Roy, Maya Skarbinski, Justin S. Spilker, Margaret E. Verrico, Vivienne Wild   +16 more
doaj   +1 more source

Extended Star Formation in Luminous Infrared Galaxies at z ∼ 1 in the SMILES Field

The Astrophysical Journal
Luminous infrared galaxies (LIRGs) and ultraluminous infrared galaxies (ULIRGs) in the local Universe are highly centrally concentrated in the mid-infrared (MIR) and substantially more likely than non-(U)LIRGs to be involved in mergers.
Michael K. Florian, George H. Rieke, Stacey Alberts, Irene Shivaei, Jakob M. Helton, Jianwei Lyu, Kevin N. Hainline, Zhiyuan Ji   +7 more
doaj   +1 more source

A Complete 16 μm Selected Galaxy Sample at z ∼ 1. II. Morphological Analysis

The Astrophysical Journal
We present a morphological analysis of the 16 μ m flux-density-limited galaxy sample at 0.8 < z < 1.3 from Huang et al. (2021). At the targeted redshift, the 16 μ m emission corresponds to the polycyclic aromatic hydrocarbon feature from intense star ...
Piaoran Liang, Y. Sophia Dai, Jia-Sheng Huang, Cheng Cheng, Yaru Shi   +4 more
doaj   +1 more source

The FENIKS Survey: Spectroscopic Confirmation of Massive Quiescent Galaxies at z ∼ 3–5

The Astrophysical Journal
The measured ages of massive, quiescent galaxies at z ∼ 3–4 imply that massive galaxies quench as early as z ∼ 6. While the number of spectroscopic confirmations of quiescent galaxies at z < 3 has increased over the years, there are only a handful at z >
Jacqueline Antwi-Danso, Casey Papovich, James Esdaile, Themiya Nanayakkara, Karl Glazebrook, Taylor A. Hutchison, Katherine E. Whitaker, Z. Cemile Marsan, Ruben J. Diaz, Danilo Marchesini, Adam Muzzin, Kim-Vy H. Tran, David J. Setton, Yasha Kaushal, Joshua S. Speagle, Justin Cole   +15 more
doaj   +1 more source

The Complex Multiwavelength Morphology of the Peculiar Compact Galaxy Group IC 2431

The Astrophysical Journal
We present new Chandra X-ray imaging spectroscopy of the compact galaxy group IC 2431, and compare with archival ultraviolet, optical, infrared, and radio images. IC 2431 is a starburst system containing three tidally distorted disk galaxies.
Beverly J. Smith, Roberto Soria, Douglas A. Swartz, Mark L. Giroux, Curtis Struck, Ryan Urquhart   +5 more
doaj   +1 more source

Characterizing the luminosity components of luminous infrared galaxies in multi-wavelength from the X-ray to the far-infrared. [PDF]

Sci Rep
Ali AAM, Gadallah KAK, Shalabiea OM, Beheary MM.   +3 more
europepmc   +1 more source

Galaxy Evolution with Manifold Learning. [PDF]

Entropy (Basel)
Takeuchi TT, Cooray S, Kano RR.
europepmc   +1 more source