A dataset provided by the European Space Agency

Name 069319
Title The Dark Matter and Baryon Content of a Sample of Isolated Elliptical Galaxies


DOI https://doi.org/10.5270/esa-647lut4
Author European Space Agency
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 (< virgul10^{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 No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2012-06-08T17:26:53Z/2013-03-27T21:29:30Z
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 2014-04-06T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2014, The Dark Matter And Baryon Content Of A Sample Of Isolated Elliptical Galaxies, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-647lut4