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In the most distant reaches of the Universe, the 21-cm hyperfine transition in neutral hydrogen provides one of the only available tracers of large-scale structure. A number of instruments have been working and planned to measure the 21-cm…

Cosmology and Nongalactic Astrophysics · Physics 2023-03-15 Teppei Minoda , Shohei Saga , Tomo Takahashi , Hiroyuki Tashiro , Daisuke Yamauchi , Shuichiro Yokoyama , Shintaro Yoshiura

This series of papers investigates the early stages of planet formation by modeling the evolution of the gas and solid content of protostellar disks from the early T Tauri phase until complete dispersal of the gas. In this first paper, I…

Astrophysics · Physics 2009-11-13 P. Garaud

The Experiment to Detect the Global Epoch of Reionization Signature (EDGES) recently reported a strong 21-cm absorption signal relative to the cosmic microwave background at $z \sim 18$. While its anomalous amplitude may indicate new…

Astrophysics of Galaxies · Physics 2018-12-12 Jordan Mirocha , Steven R. Furlanetto

We present an evolutionary picture of a forming star. We assume a singular, isothermal sphere as the initial state of the core that undergoes collapse as described by \citet{shu77}. We include the evolution of a first hydrostatic core at…

Astrophysics · Physics 2009-11-10 Chadwick H. Young , Neal J. Evans

A proto-neutron star (PNS) is the first phase of life of a neutron star, and is likely to origin from a core-collapse supernova. After about 200 ms from core-collapse, the PNS evolution may be modeled as a sequence of quasi-stationary…

General Relativity and Quantum Cosmology · Physics 2018-01-08 Giovanni Camelio

We investigate the influence of the initial proto-galaxies over-densities and masses on their evolution, to understand whether the internal properties of the proto-galactic haloes are sufficient to account for the varied properties of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Emiliano Merlin , Cesare Chiosi , Lorenzo Piovan , Tommaso Grassi , Umberto Buonomo , Francesco La Barbera

We introduce the Evolution of 21-cm Structure (EOS) project: providing periodic, public releases of the latest cosmological 21-cm simulations. 21-cm interferometry is set to revolutionize studies of the Cosmic Dawn (CD) and epoch of…

Cosmology and Nongalactic Astrophysics · Physics 2016-04-27 Andrei Mesinger , Bradley Greig , Emanuele Sobacchi

We study the thermal and chemical evolution during the Kelvin-Helmholtz phase of the birth of a neutron star, employing neutrino opacities that are consistently calculated with the underlying equation of state (EOS). Expressions for the…

Astrophysics · Physics 2009-10-30 J. A. Pons , S. Reddy , M. Prakash , J. M. Lattimer , J. A. Miralles

The tentative detection by the EDGES experiment of a global 21-cm absorption trough centered at redshift 17 opens up the opportunity to study the birth of the first luminous sources, the intensity of radiation backgrounds at cosmic dawn,…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-18 Piero Madau

We examine the results from the Experiment to Detect the Global Epoch of Reionization Signature (EDGES), which has recently claimed the detection of a strong absorption in the 21 cm hyperfine transition line of neutral hydrogen, at…

Cosmology and Nongalactic Astrophysics · Physics 2018-06-06 Samuel Witte , Pablo Villanueva-Domingo , Stefano Gariazzo , Olga Mena , Sergio Palomares-Ruiz

We measure the morphology-density relation of galaxies at z=1 across the full three orders of magnitude in projected galaxy density available in low-redshift studies. Our study adopts techniques that are comparable with those applied at…

Astrophysics · Physics 2010-04-06 Graham P. Smith , Tommaso Treu , Richard S. Ellis , Sean M. Moran , Alan Dressler

How does the number density of early-type galaxies (E+S0) evolve with redshift? What are their star formation histories? Do their mass density profile and other structural properties evolve with redshift? Answering these questions is key to…

Astrophysics · Physics 2007-05-23 T. Treu

The last decade has witnessed significant advances in our observational understanding of the earliest stages of low-mass star formation. The advent of sensitive receivers on large radio telescopes such as the JCMT and IRAM 30m MRT has led…

Astrophysics · Physics 2007-05-23 Philippe Andre , Derek Ward-Thompson , Mary Barsony

(Abridged) Star and planet formation theories predict an evolution in the density, temperature, and velocity structure as the envelope collapses and forms an accretion disk. The aim of this work is to model the evolution of the molecular…

Solar and Stellar Astrophysics · Physics 2015-06-15 Daniel Harsono , Ruud Visser , Simon Bruderer , Ewine F. van Dishoeck , Lars E. Kristensen

Early-type galaxies (ETGs) are observed to be more compact at z>2 than in the local Universe. Remarkably, much of this size evolution appears to take place in a short (1.8 Gyr) time span between z=2.2 and z=1.3, which poses a serious…

Astrophysics of Galaxies · Physics 2015-06-04 C. Nipoti , T. Treu , A. Leauthaud , K. Bundy , A. B. Newman , M. W. Auger

We investigate the properties of $\sim7000$ narrow-band selected galaxies with strong H$\beta+$[OIII] and [OII] nebular emission lines from the High-$z$ Emission Line Survey (HiZELS) between $z \sim 0.8 - 5.0$. Our sample covers a wide…

We present constraints on the formation and evolution of early-type galaxies (ETGs) with the empirical model EMERGE. The parameters of this model are adjusted so that it reproduces the evolution of stellar mass functions, specific star…

Astrophysics of Galaxies · Physics 2020-10-14 Benjamin P. Moster , Thorsten Naab , Simon D. M. White

We study the evolution of star-forming galaxies with $10^{10} M_\odot<M_*<10^{11.6} M_\odot$ over the redshift range of 0.7<z<1.2 using the emission line galaxies (ELGs) in the extended Baryon Oscillation Spectroscopic Survey (eBOSS). By…

[ABRIDGED] We aim to provide a holistic view on the typical size and kinematic evolution of massive early-type galaxies (ETGs), that encompasses their high-$z$ star-forming progenitors, their high-$z$ quiescent counterparts, and their…

Astrophysics of Galaxies · Physics 2018-05-18 A. Lapi , L. Pantoni , L. Zanisi , J. Shi , C. Mancuso , M. Massardi , F. Shankar , A. Bressan , L. Danese

Early-type galaxies (ETGs) are observed to be more compact, on average, at $z \gtrsim 2$ than at $z\simeq 0$, at fixed stellar mass. Recent observational works suggest that such size evolution could reflect the similar evolution of the host…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Lorenzo Posti , Carlo Nipoti , Massimo Stiavelli , Luca Ciotti
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