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相关论文: The properties of the first galaxies in the BLUETI…

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We introduce the BlueTides simulation and report initial results for the luminosity functions of the first galaxies and AGN, and their contribution to reionization. BlueTides was run on the BlueWaters cluster at NCSA from $z=99$ to $z=8.0$…

宇宙学与河外天体物理 · 物理学 2015-12-02 Yu Feng , Tiziana Di-Matteo , Rupert A. Croft , Simeon Bird , Nicholas Battaglia , Stephen Wilkins

We study the clustering of the highest-z galaxies (from ~ $0.1$ to a few tens Mpc scales) using the BLUETIDES simulation and compare it to current observational constraints from Hubble legacy and Hyper Suprime Cam (HSC) fields (at…

宇宙学与河外天体物理 · 物理学 2017-12-29 Aklant Kumar Bhowmick , Tiziana Di Matteo , Yu Feng , Francois Lanusse

Using deep Hubble and Spitzer observations Oesch et al. (2016) have identified a bright ($M_{\rm UV}\approx -22$) star forming galaxy candidate at $z \approx 11$. The presence of GN-$z11$ implies a number density $\sim 10^{-6}\,{\rm…

星系天体物理 · 物理学 2016-07-13 Dacen Waters , Stephen Wilkins , Tiziana Di Matteo , Yu Feng , Ruper Croft , Daisuke Nagai

We use the BlueTides simulation to predict the properties of the high-$z$ galaxy and active galactic nuclei (AGN) populations for the planned 2200deg$^2$ Wide-Field Infrared Survey Telescope's (WFIRST)-AFTA High Latitude Survey (HLS).…

星系天体物理 · 物理学 2016-08-31 Dacen Waters , Tiziana Di Matteo , Yu Feng , Stephen M. Wilkins , Rupert A. C. Croft

Motivated by recent observational constraints on dust reprocessed emission in star forming galaxies at $z\sim 6$ and above we use the very-large cosmological hydrodynamical simulation \bluetides\ to explore predictions for the amount of…

星系天体物理 · 物理学 2017-12-20 Stephen M. Wilkins , Yu Feng , Tiziana Di Matteo , Rupert Croft , Christopher C. Lovell , Peter Thomas

We use the large cosmological hydro-dynamic simulation BlueTides to predict the photometric properties of galaxies during the epoch of reionisation ($z=8-15$). These properties include the rest-frame UV to near-IR broadband spectral energy…

We study the properties of galaxies at z=2 in a Lambda cold dark matter universe, using two different types of hydrodynamic simulation methods -- Eulerian TVD and smoothed particle hydrodynamics (SPH) -- and a spectrophotometric analysis in…

天体物理学 · 物理学 2015-11-11 Kentaro Nagamine , Renyue Cen , Lars Hernquist , Jeremiah P. Ostriker , Volker Springel

In this work, we present results for the photometric and clustering properties of galaxies that arise in a LambdaCDM hydrodynamical simulation of the local universe. The present-day distribution of matter was constructed to match the…

宇宙学与河外天体物理 · 物理学 2015-05-18 S. E. Nuza , K. Dolag , A. Saro

Cosmological hydrodynamic simulations robustly predict that high-redshift galaxy star formation histories (SFHs) are smoothly-rising and vary with mass only by a scale factor. We use our latest simulations to test whether this scenario can…

宇宙学与河外天体物理 · 物理学 2015-05-19 Kristian Finlator , Benjamin D. Oppenheimer , Romeel Davé

We review theoretical approaches to the study of galaxy formation, with emphasis on the role of hydrodynamic simulations in modeling the high redshift galaxy population. We present new predictions for the abundance of star-forming galaxies…

天体物理学 · 物理学 2007-05-23 David H. Weinberg , Romeel Dave' , Jeffrey P. Gardner , Lars Hernquist , Neal Katz

We investigate the evolution of the galaxy stellar mass function at high-redshift ($z\ge 5$) using a pair of large cosmological hydrodynamical simulations: {\em MassiveBlack} and {\em MassiveBlack-II}. By combining these simulations we can…

宇宙学与河外天体物理 · 物理学 2015-06-12 Stephen M. Wilkins , Tiziana Di Matteo , Rupert Croft , Nishikanta Khandai , Yu Feng , Andrew Bunker , William Coulton

Current models of the formation of first galaxies predict low masses and faint objects at extremely high redshifts, z=9-15. However, the first observations of this epoch indicate a higher-than-expected number of bright (sometimes massive)…

星系天体物理 · 物理学 2024-09-24 Daniel Ceverino , Yurina Nakazato , Naoki Yoshida , Ralf Klessen , Simon Glover

In the coming decade, a new generation of telescopes, including JWST and WFIRST, will probe the period of the formation of first galaxies and quasars, and open up the last frontier for structure formation. Recent simulations as well as…

宇宙学与河外天体物理 · 物理学 2020-06-30 Aklant K. Bhowmick , Rachel S. Somerville , Tiziana DiMatteo , Stephen Wilkins , Yu Feng , Ananth Tenneti

Surveys with James Webb Space Telescope (JWST) have discovered candidate galaxies in the first 400 Myr of cosmic time. Preliminary indications have suggested these candidate galaxies may be more massive and abundant than previously thought.…

Using state-of-the-art adaptive mesh refinement cosmological hydrodynamic simulations with a spatial resolution of proper 0.21kpc/h in refined subregions embedded within a comoving cosmological volume (27.4Mpc/h)^3, we investigate the sizes…

天体物理学 · 物理学 2009-11-13 M. K. Ryan Joung , Renyue Cen , Greg Bryan

We study the physical characteristics of galaxies at 6.3 < z < 8.6, selected from deep near-infrared imaging with the Wide Field Camera 3 (WFC3) on board the Hubble Space Telescope. Accounting for the photometric scatter using simulations,…

Using Extreme Value Statistics applied to the observed galaxy stellar mass and the UV luminosity functions, we empirically estimate masses and luminosities of the most extreme galaxies in cosmological surveys, including the full sky. We…

We study the physical and photometric properties of galaxies at z=4 in cosmological hydrodynamic simulations of a lambda-CDM universe. We focus on galaxies satisfying the GOODS "B-dropout" criteria. Our goals are: (1) to study the nature of…

天体物理学 · 物理学 2009-11-13 K. Finlator , R. Dave , C. Papovich , L. Hernquist

In this paper, we present the first results from the Renaissance Simulations, a suite of extremely high-resolution and physics-rich AMR calculations of high redshift galaxy formation performed on the Blue Waters supercomputer. These…

星系天体物理 · 物理学 2015-06-15 Brian W. O'Shea , John H. Wise , Hao Xu , Michael L. Norman

We study the properties of galaxies at z=2 in a Lambda CDM universe, using two different types of hydrodynamic simulation methods (Eulerian TVD and SPH) and a spectrophotometric analysis in the Un, G, R filter set. The simulated galaxies at…

天体物理学 · 物理学 2014-10-13 Kentaro Nagamine , Renyue Cen , Lars Hernquist , Jeremiah P. Ostriker , Volker Springel
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