A dataset provided by the European Space Agency

Name 072236
Title The Profiles of Dark Matter and Baryons of a Sample of Isolated Elliptical Galax


DOI 10.5270/esa-t5hxdhj
Author Prof David Buote
Description The mass profiles of elliptical galaxies are important probes of galaxy formation and cosmology. Only a few elliptical galaxies have detailed mass measurements from X-rays because of the lack of suitable targets in terms of total mass (< ~10^{13} m_sun) and relaxed dynamical states appropriate for hydrostatic analysis. We have identified a sample of 10 (hot) gas-rich isolated elliptical galaxies well-suited for X-ray studies of mass profiles on the galaxy scale. We request deep XMM observations to map the detailed profiles of stars, dark matter, and hot gas for the 5 systems in the sample lacking high-quality XMM data. This sample will serve as a benchmark laboratory for hydrostatic studies of the hot gas in isolated elliptical galaxies.
Publication The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2013-11-26T15:10:20Z/2014-01-17T01:32:37Z
Version 17.56_20190403_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations.
Since Earth's atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2015-02-05T23:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2015-02-05T23:00:00Z, 072236, 17.56_20190403_1200. https://doi.org/10.5270/esa-t5hxdhj