240 citations · 882 across the 11 of their papers we have counts for
6 papers · 1 filter
Low-Mass X-ray Binaries and Globular Clusters in Early-Type Galaxies. I. Chandra Observations
Philip J. Humphrey, David A. Buote
We present a Chandra survey of LMXBs in 24 early-type galaxies. Correcting for detection incompleteness, the X-ray luminosity function (XLF) of each galaxy is consistent with a pow…
Large scatter in X-ray emission among elliptical galaxies: correlations with mass of host halo
W. G. Mathews, F. Brighenti, A. Faltenbacher +4
The enormous range of X-ray luminosities among elliptical galaxies with similar optical luminosities can be attributed to large scatter and systematic variations in the dark halo m…
The X-Ray Concentration-Virial Mass Relation
David A. Buote, Fabio Gastaldello, Philip J. Humphrey +4
We present the concentration (c)-virial mass (M) relation of 39 galaxy systems ranging in mass from individual early-type galaxies up to the most massive galaxy clusters, (0.06-20)…
Probing the Dark Matter and Gas Fraction in Relaxed Galaxy Groups with X-ray observations from Chandra and XMM
Fabio Gastaldello, David A. Buote, Philip J. Humphrey +4
We present radial mass profiles within 0.3 r_vir for 16 relaxed galaxy groups-poor clusters (kT range 1-3 keV) selected for optimal mass constraints from the Chandra and XMM data a…
The Absence of Adiabatic Contraction of the Radial Dark Matter Profile in the Galaxy Cluster A2589
Luca Zappacosta, David A. Buote, Fabio Gastaldello +4
We present an X-ray analysis of the radial mass profile of the radio-quiet galaxy cluster A2589 between 0.015-0.25 r_vir using an XMM-Newton observation. Except for a ~16 kpc shift…
A Chandra View of Dark Matter in Early-Type Galaxies
Philip J. Humphrey, David A. Buote, Fabio Gastaldello +4
We present a Chandra study of mass profiles in 7 elliptical galaxies, of which 3 have galaxy-scale and 4 group-scale halos demarcated at 1E13Msun. These represent the best availabl…