Proposal ID | 055054 |
Title | The Fe-to-Oxygen Ratio in Early-Type Galaxies with Galactic Winds |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0550540101 |
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 |
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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 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 |
Last Update | 2025-01-27 |
Keywords | "energetically favored", "galactic winds", "hot gas", "fe abundance", "type galaxy", "luminous galaxy", "stellar mass", "oxygen ratio", "gas mass", "type ia supernova", "low luminosity", "super solar" |
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 |