Results 21 to 30 of about 2,272 (184)
DISCOVERY OF A PROTOCLUSTER ATz∼ 6 [PDF]
The Astrophysical Journal, 2012 12 pages, 9 figures, accepted for publication in ...
Toshikawa, Jun +12 more
openaire +3 more sources
SPECTROSCOPIC CONFIRMATION OF A PROTOCLUSTER AT z ≈ 3.786 [PDF]
The Astrophysical Journal, 2016 ABSTRACT We present new observations of the field containing the z = 3.786 protocluster PC 217.96+32.3. We confirm that it is one of the largest known and most overdense high-redshift structures. Such structures are rare even in the largest cosmological simulations. We used the Mayall/MOSAIC1.1 imaging camera to image a 1.°2 × 0.°6 area (
Arjun Dey +7 more
openaire +4 more sources
The Structures and Kinematics of Protoclusters [PDF]
Symposium - 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
Witnessing the formation of a brightest cluster galaxy at z>2 [PDF]
, 2006 We present deep observations taken with the HST Advanced Camera for Surveys of the central massive galaxy in a forming cluster at z=2.2. The galaxy hosting the powerful radio source MRC 1138-262 is associated with one of the most extensive merger systems
Bahcall +38 more
core +2 more sources
Anomalous Microwave Emission from Star Forming Regions
Advances in Astronomy, Volume 2013, Issue 1, 2013., 2013 The evidence for microwave emission from spinning dust grains has been strengthened considerably by its detection in a number of discrete astrophysical objects associated with star formation. These detections, in combination with statistical constraints on its presence on large angular scales in the diffuse ISM, have provided strong observational ...
Anna M. M. Scaife, Laurent Verstraete
wiley +1 more source
Protoclusters in the ΛCDM Universe
The Astrophysical Journal, 2006 We compare the highly clustered populations of very high redshift galaxies with protoclusters identified numerically in a standard ΛCDM universe (Ω0 = 0.3, λ0 = 0.7) simulation. We evolve 2563 dark matter particles in a comoving box of side 150 h-1 Mpc.
Tamon Suwa, Asao Habe, Kohji Yoshikawa
openaire +1 more source
Primordial Non‐Gaussianity in the Large‐Scale Structure of the Universe
Advances in Astronomy, Volume 2010, Issue 1, 2010., 2010 Primordial non‐Gaussianity is a potentially powerful discriminant of the physical mechanisms that generated the cosmological fluctuations observed today. Any detection of significant non‐Gaussianity would thus have profound implications for our understanding of cosmic structure formation. The large‐scale mass distribution in the Universe is a sensitive
Vincent Desjacques +2 more
wiley +1 more source
FRAGMENTATION OF MOLECULAR CLUMPS AND FORMATION OF A PROTOCLUSTER [PDF]
The Astrophysical Journal, 2015 Sufficiently massive clumps of molecular gas collapse under self-gravity and fragment to spawn a cluster of stars that have a range of masses. We investigate observationally the early stages of formation of a stellar cluster in a massive filamentary infrared dark cloud, G28.34+0.06 P1, in the 1.3mm continuum and spectral line emission using the ALMA ...
Qizhou Zhang +3 more
openaire +2 more sources
Competitive accretion in the protocluster G10.6−0.4? [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 9 pages, 9 figures, 2 tables, Submitted to ...
Liu, Tie +4 more
openaire +2 more sources
A SCUBA survey of the NGC 2068/2071 protoclusters [PDF]
, 2001 We report the results of a submillimeter dust continuum survey of the protoclusters NGC 2068 and NGC 2071 in Orion B carried out at 850 microns and 450 microns with SCUBA on JCMT.
Bacmann +28 more
core +4 more sources