English
Related papers

Related papers: The generalized scaling relations for X-ray galaxy…

200 papers

This is the fourth in a series of papers studying the astrophysics and cosmology of massive, dynamically relaxed galaxy clusters. Here, we use measurements of weak gravitational lensing from the Weighing the Giants project to calibrate…

Cosmology and Nongalactic Astrophysics · Physics 2016-02-17 D. E. Applegate , A. Mantz , S. W. Allen , A. von der Linden , R. G. Morris , S. Hilbert , P. L. Kelly , D. L. Burke , H. Ebeling , D. A. Rapetti , R. W. Schmidt

SZ scaling relations have been used to test the self-similar prediction for massive galaxy clusters, but little attention has been given to individual galaxy groups. We investigate the scaling relations of galaxy groups and clusters near…

Cosmology and Nongalactic Astrophysics · Physics 2020-03-04 Cameron T. Pratt , Joel N. Bregman

We present a new measurement of the scaling relation between X-ray luminosity and total mass for 17,000 galaxy clusters in the maxBCG cluster sample. Stacking sub-samples within fixed ranges of optical richness, N_200, we measure the mean…

Scaling properties of galaxy cluster observables with mass provide central insights into the processes shaping clusters. Calibrating proxies for cluster mass will be crucial to cluster cosmology with upcoming surveys like eROSITA and…

Cosmology and Nongalactic Astrophysics · Physics 2014-05-08 Holger Israel , Thomas H. Reiprich , Thomas Erben , Richard J. Massey , Craig L. Sarazin , Peter Schneider , Alexey Vikhlinin

The main uncertainty in current determinations of the power spectrum normalization, sigma_8, from abundances of X-ray luminous galaxy clusters arises from the calibration of the mass-temperature relation. We use our weak lensing mass…

Astrophysics · Physics 2009-11-11 Kristian Pedersen , Haakon Dahle

We present the reconstruction of hydrostatic mass profiles in 13 X-ray luminous galaxy clusters that have been mapped in their X-ray and SZ signal out to $R_{200}$ for the XMM-Newton Cluster Outskirts Project (X-COP). Using profiles of the…

Cosmology and Nongalactic Astrophysics · Physics 2019-01-09 S. Ettori , V. Ghirardini , D. Eckert , E. Pointecouteau , F. Gastaldello , M. Sereno , M. Gaspari , S. Ghizzardi , M. Roncarelli , M. Rossetti

[Abridged] We present an analysis of the scaling relations between X-ray properties and Sunyaev-Zel'dovich (SZ) parameters for a sample of 24 X-ray luminous galaxy clusters observed with Chandra and with measured SZ effect. These objects…

Astrophysics · Physics 2009-06-23 A. Morandi , S. Ettori , L. Moscardini

The average matter density within the turnaround scale, which demarcates where galaxies shift from clustering around a structure to joining the expansion of the Universe, is an important cosmological probe. However, a measurement of the…

Cosmology and Nongalactic Astrophysics · Physics 2024-12-02 Giorgos Korkidis , Vasiliki Pavlidou

(Abriged) Assuming that the hydrostatic equilibrium holds between the intracluster medium and the gravitational potential, we constrain the NFW profiles in a sample of 44 X-ray luminous galaxy clusters observed with XMM-Newton in the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 S. Ettori , F. Gastaldello , A. Leccardi , S. Molendi , M. Rossetti , D. Buote , M. Meneghetti

We present the XMM-Newton X-ray analysis of 19 X-ray luminous galaxy clusters of low-to-mid redshift ($< 0.4$) selected from the MCXC cluster catalogue in the Hyper Supri%survey as the first work in our series paper. We derive the…

Astrophysics of Galaxies · Physics 2023-03-08 Helen Poon , Nobuhiro Okabe , Yasushi Fukazawa , Daiichi Akino , Chong Yang

Galaxy groups and poor clusters are more common than rich clusters, and host the largest fraction of matter content in the Universe. Hence, their studies are key to understand the gravitational and thermal evolution of the bulk of the…

Cosmology and Nongalactic Astrophysics · Physics 2021-06-28 Lorenzo Lovisari , Stefano Ettori , Massimo Gaspari , Paul A. Giles

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

We present the X-ray and optical properties of the galaxy groups selected in the Chandra X-Bo\"otes survey. Our final sample comprises 32 systems at \textbf{$z<1.75$}, with 14 below $z = 0.35$. For these 14 systems we estimate velocity…

Cosmology and Nongalactic Astrophysics · Physics 2014-09-25 Bruna Vajgel , Christine Jones , Paulo A. A. Lopes , William R. Forman , Stephen S. Murray , Andrew Goulding , Felipe Andrade-Santos

We present a detailed comparison of mass measurements for clusters of galaxies using ASCA and ROSAT X-ray data and constraints from strong and weak gravitational lensing. Our results for a sample of 13 clusters provide a consistent…

Astrophysics · Physics 2009-10-30 S. W. Allen

Scaling relations of observed galaxy cluster properties are useful tools for constraining cosmological parameters as well as cluster formation histories. One of the key cosmological parameters, sigma8, is constrained using observed clusters…

Cosmology and Nongalactic Astrophysics · Physics 2012-06-19 Julia M. Comerford , Leonidas A. Moustakas , Priyamvada Natarajan

We present a sample of 29 galaxy clusters from the XMM-LSS survey over an area of some 5deg2 out to a redshift of z=1.05. The sample clusters, which represent about half of the X-ray clusters identified in the region, follow well defined…

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

We present the first measurement of the relationship between the Sunyaev-Zel'dovich effect signal and the mass of galaxy clusters that uses gravitational lensing to measure cluster mass, based on 14 X-ray luminous clusters at z~0.2 from the…

The halo mass-temperature relation for a sample of 216 galaxy clusters, groups, and individual galaxies observed by $Chandra$ X-ray Observatory is presented. Using accurate spectral measurements of their hot atmospheres, we derive the $M-T$…

Astrophysics of Galaxies · Physics 2023-04-06 Iurii Babyk , Brian McNamara

We investigate a sample of 14 galaxy clusters from the GOGREEN and GCLASS (GG) spectroscopic datasets within the redshift range $(0.87 \leq z \leq 1.37)$ and cluster masses $\mathrm{M}_{200} \gtrsim 2\times 10^{14}$ \hm. Using the highly…

Astrophysics of Galaxies · Physics 2026-01-06 Shrouk Abdulshafy , Mohamed H. Abdullah , Gillian Wilson , Michael L. Balogh , Raouf H. Mabrouk
‹ Prev 1 3 4 5 6 7 10 Next ›