Results 181 to 190 of about 6,380,044 (283)

MaNGA AGN dwarf galaxies (MAD) -- III. The role of mergers and environment in AGN activity in dwarf galaxies [PDF]

arXiv
Investigating whether and how galaxy mergers affect black hole growth can be determinant for black hole-galaxy evolution models and, in particular, for understanding how early Universe seed black holes grew to become supermassive. However, while mergers have been observed to enhance the active galactic nucleus (AGN) activity, and thus black hole growth
arxiv  

The Emergence of a Brightest Cluster Galaxy in a Protocluster Core at z = 2.24

The Astrophysical Journal
We report the detection of a pair of massive quiescent galaxies likely in the process of merging at the center of the spectroscopically confirmed, extremely massive protocluster BOSS1244 at z = 2.24 ± 0.02.
Dong Dong Shi, Xin Wang, Xian Zhong Zheng, Zheng Cai, Xiaohui Fan, Fuyan Bian, Harry I. Teplitz   +6 more
doaj   +1 more source

On the Neutral Gas Content and Environment of NGC 3109 and the Antlia Dwarf Galaxy [PDF]

, 2001
David G. Barnes, W. J. G. de Blok
openalex   +1 more source

A Break in the Size–Stellar Mass Relation: Evidence for Quenching and Feedback in Dwarf Galaxies

The Astrophysical Journal
Mapping stars and gas in nearby galaxies is fundamental for understanding their growth and the impact of their environment. This issue is addressed by comparing the stellar “edges” of galaxies D _stellar , defined as the outermost diameter where in situ ...
Nushkia Chamba, Pamela M. Marcum, Amélie Saintonge, Alejandro S. Borlaff, Matthew J. Hayes, Valentin J. M. Le Gouellec, S. Drew Chojnowski, Michael N. Fanelli   +7 more
doaj   +1 more source

Evidence for Environmental Effects in the z = 4.3 Protocluster Core SPT2349–56

The Astrophysical Journal Letters
We present Atacama Large Millimeter/submillimeter Array observations of the [C I ] 492 and 806 GHz fine-structure lines in 25 dusty star-forming galaxies (DSFGs) at z = 4.3 in the core of the SPT2349–56 protocluster.
Chayce Hughes, Ryley Hill, Scott C. Chapman, Manuel Aravena, Melanie Archipley, Veronica J. Dike, Anthony Gonzalez, Thomas R. Greve, Gayathri Gururajan, Chris Hayward, Kedar Phadke, Cassie Reuter, Justin Spilker, Nikolaus Sulzenauer, Joaquin D. Vieira, David Vizgan, George Wang, Axel Weiss, Dazhi Zhou   +18 more
doaj   +1 more source

HiGas in the Environment of the Seyfert Galaxies NGC 6764 and Markarian 1126 [PDF]

, 2001
Eric Wilcots, Margaret Turnbull, E. Brinks   +2 more
openalex   +1 more source

Modeling the Multiwavelength Detection of Protoclusters. I. An Excess of Submillimeter Galaxies in Protocluster Cores

The Astrophysical Journal
Studies of galaxy protoclusters yield insights into galaxy cluster formation complementary to those obtained via “archaeological” studies of present-day galaxy clusters.
Pablo Araya-Araya, Rachel K. Cochrane, Christopher C. Hayward, Robert M. Yates, Laerte Sodré Jr., Marcelo C. Vicentin, Douglas Rennehan, Roderik Overzier, Marcel van Daalen   +8 more
doaj   +1 more source

Dwarf Galaxies in Clusters: the Effects of a Violent Environment

, 2000
Omar Lopez‐Cruz, H. K. C. Yee
openalex   +2 more sources

The Host Galaxy and Environment of thez = 1.195 Quasar 3C 190 [PDF]

, 2001
Alan Stockton, Susan E. Ridgway
openalex   +1 more source

Systematically Measuring Ultra-diffuse Galaxies (SMUDGes). VI. Nuclear Star Clusters

The Astronomical Journal
We present our photometric search for potential nuclear star clusters (NSCs) in ultra-diffuse galaxies (UDGs) as an extension of the SMUDGes catalog. We identify 325 SMUDGes galaxies with NSCs and, from the 144 with existing distance estimates, identify ...
Mika Lambert, Donghyeon J. Khim, Dennis Zaritsky, Richard Donnerstein   +3 more
doaj   +1 more source