Results 51 to 60 of about 1,021 (168)
Understanding Starbursting Protoclusters: Follow-up of Herschel-Planck Selected Sources
, 2017 Crossmatching between Planck and Herschel data has uncovered a total of 30 high-z candidate starbursting protoclusters in HerMES & H-ATLAS. These protoclusters might be in their formation period so their study is important in characterising cluster ...
Cheng, Tai-An (5366761) +5 more
core +1 more source
ODIN: Identifying Protoclusters and Cosmic Filaments Traced by Lyα-emitting Galaxies
The Astrophysical JournalTo 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 +26 more
doaj +1 more source
Narrowband Imaging of a z = 3.24 Protocluster: Insights from [O iii]-emitting Galaxies
The Astrophysical JournalWe present narrowband imaging of a spectroscopically confirmed protocluster “D4UD01” at z = 3.24 using CFHT/WIRCam. We identify a sample of 24 [O iii ] emission-line galaxies in the field, which forms a large overdensity in the protocluster region.
Ke Shi +4 more
doaj +1 more source
Mining for Protoclusters at z ∼ 4 from Photometric Data Sets with Deep Learning
The Astrophysical JournalProtoclusters 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 +11 more
doaj +1 more source
The Astrophysical Journal, 2023 We present a high-angular resolution (∼1″) and wide-field ( $2\buildrel{\,\prime}\over{.} 9\times 1\buildrel{\,\prime}\over{.} 9$ ) image of the 1.3 mm continuum, CO( J = 2–1) and SiO( J = 5–4) line emissions toward an embedded protocluster, FIR 3, FIR 4,
Asako Sato +8 more
doaj +1 more source
A massive protocluster of galaxies at a redshift of z ≈ 5.3 [PDF]
Nature, 2011 Massive clusters of galaxies have been found that date from as early as 3.9 billion years1 (3.9 Gyr; z = 1.62) after the Big Bang, containing stars that formed at even earlier epochs2, 3. Cosmological simulations using the current cold dark matter model predict that these systems should descend from ‘protoclusters’—early overdensities of massive ...
Capak, PL +16 more
openaire +4 more sources
The Astrophysical JournalWe investigate the consistency of intergalactic medium (IGM) tomography and galaxy surveys as tracers of the cosmic web and protoclusters at z ∼ 2.5. We use maps from the Ly α Tomography IMACS Survey (LATIS), which trace the distributions of Lyman-break
Andrew B. Newman +13 more
doaj +1 more source
Accelerating star formation of dense clumps
Astronomy & AstrophysicsWe present a statistical framework that establishes an accelerating star formation scenario for dense clumps using ATLASGAL and ALMAGAL samples. By employing the cumulative distribution function of dust temperature as a monotonic evolutionary indicator ...
Liu Xunchuan
doaj +1 more source
How Massive Star Clusters Form and Evolve: A Near-IR Survey of the W51 Complex
The Astronomical JournalWe present near-infrared JHK _s and narrowband H _2 (1–0) photometric observations of the W51A region, obtained with GTC EMIR, aiming to characterize its young stellar population, and provide mass estimates for individual cluster members and the ...
Aden Dawson +2 more
doaj +1 more source
The Ages of Passive Galaxies in a z = 1.62 Protocluster [PDF]
The Astrophysical Journal, 2017 Abstract We present a study of the relation between galaxy stellar age and mass for 14 members of the z = 1.62 protocluster IRC 0218, using multiband imaging and HST G102 and G141 grism spectroscopy. Using UVJ colors to separate galaxies into star-forming and quiescent populations, we find that, at stellar masses
Donald B. Lee-Brown +11 more
openaire +2 more sources