A dataset provided by the European Space Agency

Name 020509
Title DETERMINING THE TEMPERATURE OF HOT GAS IN X-RAY FAINT EARLY-TYPE GALAXIES
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0205090101
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0205090201
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0205090401

DOI 10.5270/esa-1drvvj1
Author Dr JIMMY IRWIN
Description The temperature of the hot X-ray gas contained within early-type galaxies is an important diagnostic of the hydrodynamical processes that affect the gas. Previous studies of X-ray bright ellipticals indicate that they are all hotter than the kinetic motion of the stars, and it has been suggested that the gas is in the potential well of a massive dark matter halo that is dynamically hotter than the stars. X-ray faint galaxies have lost most of their gas, possibly because of a shallower dark matter potential well. If this is true, then the gas that does remain in these galaxies should have a temperature that more closely reflects the stellar kinetic temperature. We propose to observe three X-ray faint galaxies to determine their temperature and test this prediction.
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Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-01-06T00:23:24Z/2004-12-23T19:27:21Z
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 2006-01-27T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2006-01-27T00:00:00Z, 020509, 17.56_20190403_1200. https://doi.org/10.5270/esa-1drvvj1