Results 71 to 80 of about 739 (176)

LATIS: Comparing Galaxy and IGM Tomography Maps as Tracers of Large-scale Structure and Protoclusters at z ∼ 2.5

open access: yesThe Astrophysical Journal
We 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

open access: yesAstronomy & Astrophysics
We 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

Can Cosmological Simulations Reproduce the Spectroscopically Confirmed Galaxies Seen at z ≥ 10?

open access: yesThe Astrophysical Journal Letters, 2023
Recent photometric detections of extreme ( z > 10) redshift galaxies from the JWST have been shown to be in strong tension with existing simulation models for galaxy formation and in the most acute case, in tension with ΛCDM itself.
B. W. Keller   +3 more
doaj   +1 more source

The Ages of Passive Galaxies in a z = 1.62 Protocluster [PDF]

open access: yesThe 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

How Massive Star Clusters Form and Evolve: A Near-IR Survey of the W51 Complex

open access: yesThe Astronomical Journal
We 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

Formation of Protoclusters in the Tank Industry of the Urals in 1941–1945 [PDF]

open access: yesЭкономика региона, 2017
The article considers the process of the formation of the tank industry in the Urals during the Great Patriotic War in connection with the aspects of regional development within the large territorial and industrial entities. In modern economic science,
Vladimir Vasilyevich Zapariy   +2 more
doaj   +1 more source

MeerKAT observations of Herschel protocluster candidates

open access: yesMonthly 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   +11 more
openaire   +2 more sources

ALMA-IMF. XIV. Free–Free Templates Derived from H41α and Ionized Gas Content in 15 Massive Protoclusters

open access: yesThe Astrophysical Journal Supplement Series
We use the H41 α recombination line to create templates of the millimeter free–free emission in the ALMA-IMF continuum maps, which allows us to separate it from dust emission.
Roberto Galván-Madrid   +27 more
doaj   +1 more source

Monte Carlo simulations of galaxy protoclusters in Cosmos Survey [PDF]

open access: yes, 2015
Jata tj. skupovi galaksija su veliki virializirani skupovi galaksija. Galaksije doprinose oko 5% mase jata, unutar-klasterski medij oko 10% mase i tamna tvar do 85% mase. Te strukture su nastale iz protojata galaksija.
Tomičić, Neven
core  

The Luminosity Function and Clustering of Hα Emitting Galaxies at z ≈ 4−6 from a Complete NIRCam Grism Redshift Survey

open access: yesThe Astrophysical Journal
We study the luminosity function (LF) and clustering properties of 888 H α emitters (HAEs) at 3.75 
Xiaojing Lin   +22 more
doaj   +1 more source

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