Results 41 to 50 of about 7,925 (170)

Galaxy Evolution in Compact Groups. III. Structural Analysis of Galaxies and Dynamical State of Non-isolated Compact Groups

The Astrophysical Journal
Compact groups (CGs) of galaxies are dense systems where projected separations are comparable to their optical diameters. A subset—non-isolated CGs—are embedded within major structures. Using multiband S-PLUS data, we analyse galaxies in 122 non-isolated
Gissel P. Montaguth, Ana Laura O’Mill, Claudia Mendes de Oliveira, Ciria Lima-Dias, Sergio Torres-Flores, Antonela Monachesi, D. E. Olave-Rojas, Diego Pallero, Pedro K. Humire, Ricardo Demarco, Eduardo Telles, Paulo A. A. Lopes, Swayamtrupta Panda, Rodrigo F. Haack, Amanda R. Lopes, Alvaro Alvarez-Candal, Analia V. Smith Castelli, Antonio Kanaan, Tiago Ribeiro, William Schoenell   +19 more
doaj   +1 more source

Environments around Quasars at z ∼ 3 Revealed by Wide-field Imaging with Subaru HSC and CFHT

The Astrophysical Journal
We examine the local density environments around 67 quasars at z ∼ 3 by combining the imaging data of Hyper Suprime-Cam Subaru Strategic Program and Canada–France–Hawaii Telescope Large Area U -band Deep Survey over about 20 deg ^2 .
Yuta Suzuki, Hisakazu Uchiyama, Yoshiki Matsuoka, Jun Toshikawa, Stephen Gwyn, Masatoshi Imanishi, Chengze Liu, Akatoki Noboriguchi, Marcin Sawicki, Yoshiki Toba   +9 more
doaj   +1 more source

On the filamentary environment of galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2010
The correlation between the large-scale distribution of galaxies and their spectroscopic properties at z=1.5 is investigated using the Horizon MareNostrum cosmological run. We have extracted a large sample of 10^5 galaxies from this large hydrodynamical simulation featuring standard galaxy formation physics.
Gay, C., Pichon, C., Le Borgne, D., Teyssier, R., Sousbie, T., Devriendt, J.   +5 more
openaire   +3 more sources

Early Results from the Coma Legacy IFU Survey (CLIFS): Ram Pressure Induced Shocks and Ionization in Jellyfish Tails

The Astrophysical Journal
Jellyfish galaxies, which exhibit tails of gas opposite to their direction of motion, are a galaxy population showcasing the most extreme effects of ram pressure stripping (RPS).
Lauren M. Foster, Ian D. Roberts, Laura C. Parker, Timothy A. Davis, Alessandro Ignesti, Sean McGee, Nikki Zabel, Ming Sun, Reinout J. van Weeren   +8 more
doaj   +1 more source

Deep Synoptic Array Science: A Massive Elliptical Host Among Two Galaxy-cluster Fast Radio Bursts

The Astrophysical Journal, 2023
The stellar population environments that are associated with fast radio burst (FRB) sources provide important insights for developing their progenitor theories.
Kritti Sharma, Jean Somalwar, Casey Law, Vikram Ravi, Morgan Catha, Ge Chen, Liam Connor, Jakob T. Faber, Gregg Hallinan, Charlie Harnach, Greg Hellbourg, Rick Hobbs, David Hodge, Mark Hodges, James W. Lamb, Paul Rasmussen, Myles B. Sherman, Jun Shi, Dana Simard, Reynier Squillace, Sander Weinreb, David P. Woody, Nitika Yadlapalli, The Deep Synoptic Array team   +23 more
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What Triggers Galaxy Transformations? The Environments of Poststarburst Galaxies [PDF]

The Astrophysical Journal, 2006
ApJ in ...
Hogg, David W., Masjedi, Morad, Berlind, Andreas A., Blanton, Michael R., Quintero, Alejandro D., Brinkmann, J.   +5 more
openaire   +2 more sources

Tidal Grinding of Dwarf Galaxies in Cluster Environments

The Astrophysical Journal Letters
Dwarf elliptical galaxies (dEs) dominate galaxy clusters and provide key constraints on environmentally driven galaxy evolution. Here we examine whether the projected shapes of dEs retain information about their accretion and transformation histories ...
Sanjaya Paudel, Suk-Jin Yoon, Tek Prasad Adhikari, Eun-Taek Gim, Myung-Hun Kim, Inhyuk Park, Nau Raj Pokhrel   +6 more
doaj   +1 more source

Different Origins of Nucleated and Nonnucleated Dwarf Elliptical Galaxies: Identified by Deep Learning

The Astrophysical Journal
Dwarf elliptical galaxies (dEs) are the dominant population in galaxy clusters and serve as ideal probes for studying the environmental impact on galactic evolution.
Sanjaya Paudel, Cristiano G. Sabiu, Suk-Jin Yoon, Daya Nidhi Chhatkuli, Woong-Bae G. Zee, Jaewon Yoo, Binod Adhikari   +6 more
doaj   +1 more source

Properties of barred galaxies with the environment

Astronomy & Astrophysics
Context. Bars are elongated structures developed by a large fraction of disk galaxies in their central few kiloparsecs. However, the bar formation process is still not fully understood, particularly the role played by the galaxy environment in the ...
Cuomo Virginia, Aguerri J. Alfonso L., Morelli Lorenzo, Choque-Challapa Nelvy, Zarattini Stefano   +4 more
doaj   +1 more source

No Evidence of Asymmetrically Enhanced Star Formation in Infalling Galaxies in UNIONS

The Astrophysical Journal
Ram pressure stripping is a well-known environmental quenching mechanism that removes gas from galaxies infalling into groups and clusters. In some extreme examples of ram pressure stripping, galaxies with extended gas tails show evidence of enhanced ...
Lauren M. Foster, Laura C. Parker, Stephen Gwyn, Ian D. Roberts, James E. Taylor, Michael J. Hudson, Alan W. McConnachie, Thomas de Boer   +7 more
doaj   +1 more source