A dataset provided by the European Space Agency

Proposal ID 020097
Title THE HALOS OF INDIVIDUAL EARLY-TYPE GALAXIES
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0200970101

DOI https://doi.org/10.5270/esa-bzdynsg
Principal Investigator, PI Dr ALASTAIR SANDERSON
Abstract Galaxies are the basic unit from which larger structures are built, and providean important comparison with more massive, later-forming virialized systems.Their halos also provide an ideal environment in which to studynon-gravitational processes on small mass scales. However, previous work onindividual galaxies has focused on brightest-group or cluster galaxies, whichare embedded in dense gas associated with a larger potential well. We havecarefully selected a small sample of early-type galaxies, free from suchcontaminating emission. We propose to perform a detailed study of the bestnearby example of such a system, combined with observations of two similar butfainter galaxies, in order to establish their properties as a class, which can be compared with group and cluster halos.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2005-01-28T21:29:31Z/2005-01-29T07:52:07Z
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 2006-02-19T00:00:00Z
Keywords "type galaxy", "mass scales", "contaminating emission", "individual galaxy", "cluster galaxy", "larger potential", "fainter galaxy", "nearby example", "cluster halos", "forming virialized systems", "gravitational processes", "basic unit", "larger structures", "dense gas"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr ALASTAIR SANDERSON, 2006, 'THE HALOS OF INDIVIDUAL EARLY-TYPE GALAXIES', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-bzdynsg