Results 21 to 30 of about 1,021 (168)

Protoclusters traced by high-redshift massive galaxies [PDF]

open access: yes, 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).
Garcia-Vergara, C   +2 more
core   +3 more sources

Bright submillimeter galaxies do trace galaxy protoclusters [PDF]

open access: yes, 2023
There is controversy in the literature regarding whether distant, massive, and dusty starbursts selected at (sub)millimeter wavelengths can trace galaxy overdensities.
Rosa Calvi   +5 more
core   +4 more sources

A PROTOCLUSTER ATz= 2.45 [PDF]

open access: yesThe Astrophysical Journal, 2015
submitted to ...
Diener, C.   +8 more
openaire   +7 more sources

A Lyman-α protocluster at redshift 6.9 [PDF]

open access: yesNature Astronomy, 2021
Protoclusters, the progenitors of the most massive structures in the Universe, have been identified at redshifts of up to 6.6. Besides exploring early structure formation, searching for protoclusters at even higher redshifts is particularly useful to probe the reionization. Here we report the discovery of the protocluster LAGER-z7OD1 at a redshift of 6.
Weida Hu   +23 more
openaire   +3 more sources

Enhancement of AGN in a protocluster at z = 1.6 [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
We investigate the prevalence of AGN in the high-redshift protocluster $\rm{Cl}\,0218.3$-$0510$ at $z=1.62$. Using imaging from the Chandra X-ray Telescope, we find a large overdensity of AGN in the protocluster; a factor of $23\pm9$ times the field density of AGN.
Charutha Krishnan   +9 more
openaire   +5 more sources

The abundance of lensing protoclusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2009
Weak gravitational lensing provides a potentially powerful method for the detection of clusters. In addition to cluster candidates, a large number of objects with possibly no optical or X-ray component have been detected in shear-selected samples.
D'Aloisio, Anson   +2 more
openaire   +2 more sources

The Structures and Kinematics of Protoclusters [PDF]

open access: yesSymposium - International Astronomical Union, 2004
Embedded clusters produce the greatest numbers of stars within our Galaxy but the process by which clusters themselves form is not well understood. The structures and kinematics of the very youngest embedded clusters, i.e., “protoclusters” with ages <106 yr, should provide needed insight.
openaire   +2 more sources

The internal structure of protoclusters and the formation of galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1978
We give a short review of the general picture and main features of the formation of galaxies and clusters of galaxies on the basis of the adiabatic theory. Detailed discussions of these questions are published in references 1–6. Some related problems of the formation and development of large scale structure in the Universe according to the same theory ...
A. G. Doroshkevich   +2 more
openaire   +1 more source

DISCOVERY OF A PROTOCLUSTER ATz∼ 6 [PDF]

open access: yesThe Astrophysical Journal, 2012
12 pages, 9 figures, accepted for publication in ...
Toshikawa, Jun   +12 more
openaire   +3 more sources

Multi-wavelength observations of starbursting protoclusters [PDF]

open access: yes, 2020
Crossmatching between Planck and Herschel data has revealed a number of candidate protoclusters with starbursting galaxies. These starbursting galaxies are believed to be progenitors of elliptical galaxies in the cores of today's massive galaxy clusters.
Cheng, Tai-An
core   +1 more source

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