Results 21 to 30 of about 739 (176)

Protoclusters associated withz> 2 radio galaxies [PDF]

Astronomy & Astrophysics, 2006
[Abridged] We present the results of a large program conducted with the Very Large Telescope and Keck telescope to search for forming clusters of galaxies near powerful radio galaxies at 2.0 < z < 5.2. We obtained narrow- and broad-band images of nine radio galaxies and their surroundings.
Venemans, B. P., Rottgering, H. J. A., Miley, G. K., van Breugel, W. J. M., De Breuck, C., Kurk, J. D., Pentericci, L., Stanford, S. A., Overzier, R. A., Croft, S., Ford, H.   +10 more
openaire   +4 more sources

Herschel protocluster survey: a search for dusty star-forming galaxies in protoclusters atz= 2–3 [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
We present a Herschel/SPIRE survey of three protoclusters at z=2-3 (2QZCluster, HS1700, SSA22). Based on the SPIRE colours (S350/S250 and S500/S350) of 250 $μ$m sources, we selected high redshift dusty star-forming galaxies potentially associated with the protoclusters. In the 2QZCluster field, we found a 4-sigma overdensity of six SPIRE sources around
Kato, Y., Matsuda, Y., Smail, I., Swinbank, A.M., Hatsukade, B., Umehata, H., Tanaka, I., Saito, T., Iono, D., Tamura, Y., Kohno, K., Erb, D.K., Lehmer, B.D., Geach, J.E., Steidel, C.C., Alexander, D.M., Yamada, T., Hayashino, T.   +17 more
openaire   +7 more sources

How Galaxies Form In Protoclusters [PDF]

, 2017
I will describe the cosmic star formation history of cluster galaxies using observations of clusters and protoclusters from z = 0 to 4. I will show that the star formation history of clusters differs from the global cosmic star formation history: cluster galaxies typically form their stars earlier and over a shorter period of time.
Hatch, Nina, Hatch, Nina (5366866)
openaire   +4 more sources

MAGAZ3NE: Evidence for Galactic Conformity in z ≳ 3 Protoclusters [PDF]

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   +2 more sources

ODIN: High Clustering Strength of Protoclusters at Cosmic Noon [PDF]

The Astrophysical Journal
The One-hundred-deg ^2 DECam Imaging in Narrowbands (ODIN) survey is carrying out a systematic search for protoclusters during Cosmic Noon, using Ly α -emitting galaxies (LAEs) as tracers.
Vandana Ramakrishnan, Kyoung-Soo Lee, Nicole Firestone, Eric Gawiser, Maria Celeste Artale, Caryl Gronwall, Lucia Guaita, Ho Seong Hwang, Sang Hyeok Im, Woong-Seob Jeong, Seongjae Kim, Ankit Kumar, Jaehyun Lee, Byeongha Moon, Nelson Padilla, Changbom Park, Akriti Singh, Hyunmi Song, Paulina Troncoso Iribarren, Yujin Yang   +19 more
doaj   +2 more sources

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

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   +2 more sources

A SYSTEMATIC SURVEY OF PROTOCLUSTERS AT z ∼ 3–6 IN THE CFHTLS DEEP FIELDS [PDF]

Astrophysical Journal, 2016
We present the discovery of three protoclusters at z ∼ 3-4 with spectroscopic confirmation in the Canada-France-Hawaii Telescope Legacy Survey Deep Fields.
Jun Toshikawa, Nobunari Kashikawa, Matthew Malkan   +2 more
exaly   +3 more sources

ODIN: Identifying Protoclusters and Cosmic Filaments Traced by Lyα-emitting Galaxies [PDF]

The Astrophysical Journal
To understand the formation and evolution of massive cosmic structures, studying them at high redshift, in the epoch when they formed the majority of their mass, is essential.
Vandana Ramakrishnan, Kyoung-Soo Lee, Maria Celeste Artale, Eric Gawiser, Yujin Yang, Changbom Park, Yi-Kuan Chiang, Robin Ciardullo, Arjun Dey, Caryl Gronwall, Lucia Guaita, Ho Seong Hwang, Sang Hyeok Im, Woong-Seob Jeong, Seongjae Kim, Ankit Kumar, Jaehyun Lee, Seong-Kook Lee, Byeongha Moon, Nelson Padilla, Alexandra Pope, Roxana Popescu, Akriti Singh, Hyunmi Song, Paulina Troncoso, Francisco Valdes, Ann Zabludoff   +26 more
doaj   +2 more sources

Protoclusters Traced By High-Redshift Massive Galaxies [PDF]

, 2017
A commonly adopted approach to detect protoclusters is to search for overdensities of galaxies around massive galaxies at high-redshift such as quasars (QSOs) and submillimeter galaxies (SMGs). However, the detection of overdensities in those environments has been elusive, against of theoretical predictions. Here, I present the first measurement of the
Garcia-Vergara, C, Garcia-Vergara, C (5370832), Garcia Vergara, C.J.   +2 more
openaire   +4 more sources

Mining for Protoclusters at z ∼ 4 from Photometric Data Sets with Deep Learning [PDF]

The Astrophysical Journal
Protoclusters are high- z overdense regions that will evolve into clusters of galaxies by z = 0, making them ideal for studying galaxy evolution expected to be accelerated by environmental effects.
Yoshihiro Takeda, Nobunari Kashikawa, Kei Ito, Jun Toshikawa, Rieko Momose, Kent Fujiwara, Yongming Liang, Rikako Ishimoto, Takehiro Yoshioka, Junya Arita, Mariko Kubo, Hisakazu Uchiyama   +11 more
doaj   +2 more sources