English
Related papers

Related papers: Testing the Low-Mass End of X-Ray Scaling Relation…

200 papers

We present a study of multiwavelength X-ray and weak lensing scaling relations for a sample of 50 clusters of galaxies. Our analysis combines Chandra and XMM-Newton data using an energy-dependent cross-calibration. After considering a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 A. Mahdavi , H. Hoekstra , A. Babul , C. Bildfell , T. Jeltema , J. P. Henry

We aim at studying scaling relations of a small but well defined sample of galaxy clusters that includes the recently discovered class of objects that are X-ray faint for their mass. These clusters have an average low X-ray surface…

Cosmology and Nongalactic Astrophysics · Physics 2022-03-30 S. Andreon , G. Trinchieri , A. Moretti

The Local Cluster Substructure Survey (LoCuSS, Smith et al.) is a systematic multi-wavelength survey of >100 X-ray luminous galaxy clusters (0.14<z<0.3) selected from the ROSAT all sky survey. We used data on 37 LoCuSS clusters from the…

Astrophysics · Physics 2009-11-13 Y. -Y. Zhang , A. Finoguenov , H. Boehringer , J. -P. Kneib , G. P. Smith , R. Kneissl , N. Okabe , H. Dahle

We present the X-ray properties and scaling relations of a flux-limited morphology-unbiased sample of 12 X-ray luminous galaxy clusters at redshift around 0.2 based on XMM-Newton observations. The scaled radial profiles are characterized by…

Astrophysics · Physics 2009-11-13 Y. -Y. Zhang , A. Finoguenov , H. Boehringer , J. -P. Kneib , G. P. Smith , O. Czoske , G. Soucail

(Abridged) This is the second in a series of papers in which we derive simultaneous constraints on cosmology and X-ray scaling relations using observations of massive, X-ray flux-selected galaxy clusters. The data set consists of 238…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Adam Mantz , Steven W. Allen , Harald Ebeling , David Rapetti , Alex Drlica-Wagner

We present weak lensing and X-ray analysis of 12 low mass clusters from the CFHTLenS and XMM-CFHTLS surveys. We combine these systems with high-mass systems from CCCP and low-mass systems from COSMOS to obtain a sample of 70 systems,…

Properties of the hot intracluster and intragroup medium are mostly set by the underlying gravitational potential well, although complex astrophysical processes at play during their buildup may leave a significant imprint. Observational…

We use a sample of 115 galaxy clusters at 0.1<z<1.3 observed with Chandra ACIS-I to investigate the relation between luminosity and Yx (the product of gas mass and temperature). The scatter in the relation is dominated by cluster cores, and…

Astrophysics · Physics 2009-11-13 B. J. Maughan

Upcoming X-ray surveys like eROSITA require precise calibration between X-ray observables and mass down to the low mass regime to set tight constraints on the fundamental cosmological parameters. Since an individual mass measurement is only…

Cosmology and Nongalactic Astrophysics · Physics 2015-01-14 Lorenzo Lovisari , Thomas Reiprich , Gerrit Schellenberger

Galaxy clusters exhibit regular scaling relations among their bulk properties. These relations establish vital links between halo mass and cluster observables. Precision cosmology studies that depend on these links benefit from a better…

Astrophysics · Physics 2009-11-13 David A. Ventimiglia , G. Mark Voit , Megan Donahue , S. Ameglio

We present the mass-X-ray observable scaling relationships for clusters of galaxies using the XMM-Newton cluster catalog of Snowden et al. Our results are roughly consistent with previous observational and theoretical work, with one major…

High Energy Astrophysical Phenomena · Physics 2015-05-14 Adrienne M. Juett , David S. Davis , Richard Mushotzky

Galaxy clusters, the most massive, dark-matter-dominated, and most recently assembled structures in the Universe, are key tools for probing cosmology. However, uncertainties in scaling relations that connect cluster mass to observables like…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-24 Giulia Cerini , Elena Bellomi , Nico Cappelluti , Sabina Khizroev , Erwin T. Lau , Priyamvada Natarajan , John ZuHone

Using Chandra X-ray observations and optical imaging and spectroscopy of a flux-limited sample of 5 fossil groups, supplemented by additional systems from the literature, we provide the first detailed study of the scaling properties of…

Astrophysics · Physics 2008-11-26 Habib G. Khosroshahi , Trevor J. Ponman , Laurence R. Jones

We present \Chandra\ observations of 23 galaxy groups and low-mass galaxy clusters at $0.03<z<0.15$ with a median temperature of ~2keV. The sample is a statistically complete flux-limited subset of the 400 deg$^2$ survey. We investigated…

Cosmology and Nongalactic Astrophysics · Physics 2016-10-26 Siwei Zou , B. J. Maughan , P. A. Giles , A. Vikhlinin , F. Pacaud , R. Burenin , A. Hornstrup

We present the X-ray properties and scaling relations of a large sample of clusters extracted from the Marenostrum MUltidark SImulations of galaxy Clusters (MUSIC) dataset. We focus on a sub-sample of 179 clusters at redshift z~0.11, with…

Cosmology and Nongalactic Astrophysics · Physics 2014-03-05 Veronica Biffi , Federico Sembolini , Marco De Petris , Riccardo Valdarnini , Gustavo Yepes , Stefan Gottlöber

We compare cluster scaling relations published for three different samples selected via X-ray and Sunyaev-Zel'dovich (SZ) signatures. We find tensions driven mainly by two factors: i) systematic differences in the X-ray cluster observables…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Eduardo Rozo , August E. Evrard , Eli S. Rykoff , James G. Bartlett

X-ray observations of the hot intra-cluster medium (ICM) in galaxy groups and clusters provide quantities such as their gas mass, X-ray luminosity, and temperature. The analysis of the scaling relations between these observable properties…

Cosmology and Nongalactic Astrophysics · Physics 2023-04-05 Lorenzo Lovisari , Ben J. Maughan

Measurements of X-ray scaling laws are critical for improving cosmological constraints derived with the halo mass function and for understanding the physical processes that govern the heating and cooling of the intracluster medium. In this…

We investigate the form and evolution of the X-ray luminosity-temperature (LT) relation of a sample of 114 galaxy clusters observed with Chandra at 0.1<z<1.3. The clusters were divided into subsamples based on their X-ray morphology or…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 B. J. Maughan , P. A. Giles , S. W. Randall , C. Jones , W. R. Forman

Well-calibrated scaling relations between the observable properties and the total masses of clusters of galaxies are important for understanding the physical processes that give rise to these relations. They are also a critical ingredient…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 S. Giodini , L. Lovisari , E. Pointecouteau , S. Ettori , T. H. Reiprich , H. Hoekstra
‹ Prev 1 2 3 10 Next ›