Results 31 to 40 of about 188 (137)

G0.253+0.016: A CENTRALLY CONDENSED, HIGH-MASS PROTOCLUSTER [PDF]

The Astrophysical Journal, 2014
57 pages. 29 figures.
J. M. Rathborne, S. N. Longmore, J. M. Jackson, J. B. Foster, Y. Contreras, G. Garay, L. Testi, J. F. Alves, J. Bally, N. Bastian, J. M. D. Kruijssen, E. Bressert   +11 more
openaire   +6 more sources

A Mixture of LBG Overdensities in the Fields of Three 6 < z < 7 Quasars: Implications for the Robustness of Photometric Selection

The Astrophysical Journal, 2023
The most luminous quasars at z > 6 are suspected to be both highly clustered and to reside in the most massive dark matter halos in the early universe, making them prime targets to search for galaxy overdensities and/or protoclusters. We search for Lyman-
Jaclyn B. Champagne, Caitlin M. Casey, Steven L. Finkelstein, Micaela Bagley, Olivia R. Cooper, Rebecca L. Larson, Arianna S. Long, Feige Wang   +7 more
doaj   +1 more source

From Clusters to Proto-Clusters: The Infrared Perspective on Environmental Galaxy Evolution

Universe, 2022
Environment is one of the primary drivers of galaxy evolution; via multiple mechanisms, it can control the critical process of transforming galaxies from star forming to quiescent, commonly termed “quenching”. Despite its importance, however, we still do
Stacey Alberts, Allison Noble
doaj   +1 more source

The gravitational collapse of triaxial protoclusters [PDF]

Monthly Notices of the Royal Astronomical Society, 1986
The collapse of ellipsoids to the formation of a caustic surface is followed. The subsequent collapse of pancakes in their planes is investigated.
More, James G., Heavens, Alan F., Peacock, John A.   +2 more
openaire   +1 more source

Early Results from GLASS-JWST. XIV. A Spectroscopically Confirmed Protocluster 650 Million Years after the Big Bang

The Astrophysical Journal Letters, 2023
We present the spectroscopic confirmation of a protocluster at z = 7.88 behind the galaxy cluster Abell 2744 (hereafter A2744-z7p9OD). Using JWST NIRSpec, we find seven galaxies within a projected radius of 60 kpc.
Takahiro Morishita, Guido Roberts-Borsani, Tommaso Treu, Gabriel Brammer, Charlotte A. Mason, Michele Trenti, Benedetta Vulcani, Xin Wang, Ana Acebron, Yannick Bahé, Pietro Bergamini, Kristan Boyett, Marusa Bradac, Antonello Calabrò, Marco Castellano, Wenlei Chen, Gabriella De Lucia, Alexei V. Filippenko, Adriano Fontana, Karl Glazebrook, Claudio Grillo, Alaina Henry, Tucker Jones, Patrick L. Kelly, Anton M. Koekemoer, Nicha Leethochawalit, Ting-Yi Lu, Danilo Marchesini, Sara Mascia, Amata Mercurio, Emiliano Merlin, Benjamin Metha, Themiya Nanayakkara, Mario Nonino, Diego Paris, Laura Pentericci, Piero Rosati, Paola Santini, Victoria Strait, Eros Vanzella, Rogier A. Windhorst, Lizhi Xie   +41 more
doaj   +1 more source

Protocluster discovery in tomographic Ly α forest flux maps [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
18 pages, 12 ...
Stark, Casey W, White, Martin, Lee, Khee-Gan, Hennawi, Joseph F   +3 more
openaire   +4 more sources

Subclustering and Star Formation Efficiency in Three Protoclusters in the Central Molecular Zone

The Astrophysical Journal Letters
We present the highest-resolution (∼0 $\mathop{.}\limits^{^{\prime\prime} }$ 04) Atacama Large Millimeter/submillimeter Array 1.3 mm continuum observations so far of three massive star-forming clumps in the Central Molecular Zone (CMZ), namely 20 km s ...
Suinan Zhang, Xing Lu, Adam Ginsburg, Nazar Budaiev, Yu Cheng, Hauyu Baobab Liu, Tie Liu, Qizhou Zhang, Keping Qiu, Siyi Feng, Thushara Pillai, Xindi Tang, Elisabeth A. C. Mills, Qiuyi Luo, Shanghuo Li, Namitha Issac, Xunchuan Liu, Fengwei Xu, Jennifer Wallace, Xiaofeng Mai, Yan-Kun Zhang, Cara Battersby, Steven N. Longmore, Zhiqiang Shen   +23 more
doaj   +1 more source

MeerKAT observations of Herschel protocluster candidates

Monthly Notices of the Royal Astronomical Society
ABSTRACT High-redshift protoclusters consisting of dusty starbursts are thought to play an important role in galaxy evolution. Their dusty nature makes them bright in the far-infrared (FIR)/submm but difficult to find in optical/near-infrared (NIR) surveys.
Y Ding, D L Clements, L L Leeuw, I Heywood, H Dannerbauer, A Parmar, P Legodi, R J Ivison, R Blake, C M Gutiérrez, A Carnero, W Sutherland   +11 more
openaire   +2 more sources

MAGAZ3NE: Evidence for Galactic Conformity in z ≳ 3 Protoclusters

The Astrophysical Journal
We examine the quiescent fractions of massive galaxies in six z ≳ 3 spectroscopically confirmed protoclusters in the COSMOS field, one of which is newly confirmed and presented here. We report the spectroscopic confirmation of MAGAZ3NE J100143+023021 at $
Ian McConachie, Gillian Wilson, Ben Forrest, Z. Cemile Marsan, Adam Muzzin, M. C. Cooper, Marianna Annunziatella, Danilo Marchesini, Percy Gomez, Wenjun Chang, Stephanie M. Urbano Stawinski, Michael McDonald, Tracy Webb, Allison Noble, Brian C. Lemaux, Ekta A. Shah, Priti Staab, Lori M. Lubin, Roy R. Gal   +18 more
doaj   +1 more source

Dusty Galaxies In Protoclusters

, 2017
Comparison of Herschel and Planck sources in large area surveys has revealed a pop- ulation of objects that appear to be galaxy clusters or protoclusters, many of whose members are undergoing massive starbursts. Followup studies confirm the likely clus- ter/protocluster nature of these sources.
Clements, David L,, Greenslade, Josh, Cheng, Tai-An   +2 more
openaire   +1 more source