A dataset provided by the European Space Agency

Proposal ID 055054
Title The Fe-to-Oxygen Ratio in Early-Type Galaxies with Galactic Winds
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0550540101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0550540201

DOI https://doi.org/10.5270/esa-4lbsybn
Principal Investigator, PI Dr Laurence David
Abstract We have analyzed archived Chandra data for a sample of 18 low-luminosityearly-type galaxies and found that all of the galaxies are gas poor. The ratioof gas mass to stellar mass in these galaxies is ten times less than that foundamong more luminous galaxies, suggesting the presence of galactic winds in thesesystems.We find that Type Ia supernovae are energetically favored over AGN asthe dominant heating mechanism driving the winds. If these galaxies possessSNeIa driven galactic winds, then the Fe abundance of the hot gas should behighly super solar.
Publications
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 Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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
Keywords "hot gas", "luminous galaxy", "galactic winds", "super solar", "stellar mass", "oxygen ratio", "gas mass", "fe abundance", "energetically favored", "type ia supernova", "low luminosity", "type galaxy"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Laurence David, 2010, 'The Fe-to-Oxygen Ratio in Early-Type Galaxies with Galactic Winds', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-4lbsybn