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Related papers: The Clustering of Intergalactic Metals

200 papers

We report new observations of the cool diffuse gas around 29, $2.3<z<6.3$ galaxies, using deep JWST/NIRCam slitless grism spectroscopy around the sightline to the quasar J0100+2802. The galaxies span a stellar mass range of $7.1 \leq \log…

We report on the surprisingly high metallicity measured in two absorption systems at high redshift, detected in the Very Large Telescope spectrum of the afterglow of the gamma-ray burst GRB 090323. The two systems, at redshift z=3.5673 and…

The Ly$\alpha$ forest decomposed into Voigt profile components allow us to study clustering properties of the intergalactic medium and its dependence on various physical quantities. Here, we report the first detections of probability excess…

Astrophysics of Galaxies · Physics 2021-11-24 Soumak Maitra , Raghunathan Srianand , Prakash Gaikwad , Nishikanta Khandai

This paper addresses the problem of detecting high-redshift clustering in deep photometric surveys. We have used photometric redshifts to select different samples of galaxies in the HDF, in order to study their clustering properties within…

Astrophysics · Physics 2007-05-23 J. M. Miralles , R. Pello

We present new results on the kinematics, thermal and ionization state, and spatial distribution of metal-enriched gas in the circumgalactic medium (CGM) of massive galaxies at redshift 3, using the "Eris" suite of cosmological "zoom-in"…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Sijing Shen , Piero Madau , Javiera Guedes , Lucio Mayer , J. Xavier Prochaska , James Wadsley

With the installation of the Cosmic Origins Spectrograph on the Hubble Space Telescope, measurements of the metal content of the low redshift intergalactic medium (IGM) are now available. Using a new grid-based model for diffuse gas coupled…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Genevieve M. Shattow , Darren J. Croton , Antonio Bibiano

Using accurate positions from very deep radio observations to guide multi-object Keck spectroscopy, we have determined a substantially complete redshift distribution for very luminous, distant submillimeter(submm)-selected galaxies (SMGs).…

Astrophysics · Physics 2010-04-06 Andrew W. Blain , Scott S. Chapman , Ian Smail , Rob Ivison

In the z=1.94 CIV absorption line system in the spectrum of quasar Q1222+228 (z_em=2.04), we find two clouds which have contrasting physical conditions, although they are only at a 17 km/s velocity separation. In the first cloud SiII, SiIV,…

Astrophysics · Physics 2009-10-30 Rajib Ganguly , Christopher W. Churchill , Jane C. Charlton

The spatial and kinematic structure of the circumgalactic medium (CGM) remains poorly constrained observationally. In this article we compute the clustering of CIV absorption systems at cosmic noon using quasar pairs. We analyze VLT/UVES…

Astrophysics of Galaxies · Physics 2026-03-11 H. Cortés-Muñoz , S. Lopez , N. Tejos , J. -K. Krogager , D. Zamora , R. Cuellar , P. Anshul , F. Urbina , A. Afruni

We present a study of galaxies and intergalactic gas toward the z=2.73 quasar HS1700+6416, to explore the effects of galaxy formation feedback on the IGM. Our observations and ionization simulations indicate that the volume within 100-200…

Astrophysics · Physics 2009-11-13 Robert A. Simcoe , Wallace L. W. Sargent , Michael Rauch , George D. Becker

We present a census of the mass density of metals and their evolution with cosmic time on a global scale throughout the Universe, synthesizing robust estimates of metals in stars, hot intra-cluster gas, and gaseous absorbers tracing neutral…

Astrophysics of Galaxies · Physics 2025-07-15 Saloni Deepak , J. Christopher Howk , Nicolas Lehner , Céline Péroux

We investigate structural properties of old, metal-poor globular clusters (GCs) formed at high redshifts (z>6) and located inside and outside virialized galaxy-scale halos in clusters of galaxies with the total masses of M_CL based on…

Astrophysics · Physics 2009-11-11 Kenji Bekki , Hideki Yahagi

We study the distribution and evolution of highly ionised intergalactic metals in the Evolution and Assembly of Galaxies and their Environment (EAGLE) cosmological, hydrodynamical simulations. EAGLE has been shown to reproduce a wide range…

Astrophysics of Galaxies · Physics 2016-03-16 Alireza Rahmati , Joop Schaye , Robert A. Crain , Benjamin D. Oppenheimer , Matthieu Schaller , Tom Theuns

We present a search for metal absorption line systems at the highest redshifts to date using a deep (30h) VLT/X-Shooter spectrum of the z = 7.084 quasi-stellar object (QSO) ULAS J1120+0641. We detect seven intervening systems at z > 5.5,…

We studied the properties of the intra-cluster medium (ICM) in two clusters of galaxies (AWM 7 and Abell 1060) and two groups (HCG 62 and NGC 507) with the X-ray Observatory Suzaku. Based on spatially resolved energy spectra, we measured…

We identified 24 SiIV absorption systems with z <~ 1 from a blind survey of 49 low-redshift quasars with archival Hubble Space Telescope ultraviolet spectra. We relied solely on the characteristic wavelength separation of the doublet to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Kathy L Cooksey , J. Xavier Prochaska , Christopher Thom , Hsiao-Wen Chen

(Abridged) We study metal absorption around 854 $z\approx$2.4 star-forming galaxies taken from the Keck Baryonic Structure Survey (KBSS). The galaxies examined in this work lie in the fields of 15 hyper-luminous background QSOs, with galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2015-02-10 Monica L. Turner , Joop Schaye , Charles C. Steidel , Gwen C. Rudie , Allison L. Strom

We have recently identified several high velocity (V < -100 km/s) clouds in the directions of Mrk 509 and PKS 2155-304 that have unusual ionization properties. The clouds exhibit strong C IV absorption with little or no detectable low ion…

Astrophysics · Physics 2009-10-30 Kenneth R. Sembach , Blair D. Savage , Limin Lu , Edward M. Murphy

We present the first large sample of absorption systems in paired QSOs consisting of 691 absorption systems in the spectra of 310 QSOs including 170 pairings. All these absorption systems have metal lines, usually C IV or Mg II. We see 17…

We present a comprehensive analysis of the relationship between galaxies and the intergalactic medium (IGM) during the late stages of cosmic reionization, based on the complete JWST EIGER dataset. Using deep NIRCam $3.5\,\mathrm{\mu m}$…