A dataset provided by the European Space Agency

Name 055054
Title The Fe-to-Oxygen Ratio in Early-Type Galaxies with Galactic Winds


DOI 10.5270/esa-4lbsybn
Author Dr Laurence David
Description We have analyzed archived Chandra data for a sample of 18 low-luminosity early-type galaxies and found that all of the galaxies are gas poor. The ratio of gas mass to stellar mass in these galaxies is ten times less than that found among more luminous galaxies, suggesting the presence of galactic winds in these systems.We find that Type Ia supernovae are energetically favored over AGN as the dominant heating mechanism driving the winds. If these galaxies possess SNeIa driven galactic winds, then the Fe abundance of the hot gas should be highly super solar.
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Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2008-12-12T07:25:25Z/2008-12-23T01:34:16Z
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 2010-01-30T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2010-01-30T00:00:00Z, 055054, 17.56_20190403_1200. https://doi.org/10.5270/esa-4lbsybn