A dataset provided by the European Space Agency

Proposal ID 065245
Title Identity of Nuclear X-ray Sources in Bulge-less Galaxies
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0652450101

DOI https://doi.org/10.5270/esa-1rvee60
Principal Investigator, PI Prof Smita Mathur
Abstract We initiated a Chandra program to search for low-level nuclear activity in arepresentative sample of late-type galaxies within 20 Mpc. We propose XMM-Newtonobservations of two late-type galaxies, Scd and Sd, in both of which a nuclearX-ray source was detected with Chandra. X-ray spectra and optical-X-ray spectralenergy distributions obtained with XMM-Newton will secure the identification ofX-ray sources as either AGNs, low-mass X-ray binaries or star clusters.Discovering secure AGNs in these bulge-less galaxies will be exciting as it willimply that bulges are not necessary for existence of black holes. This will haveimportant consequences towards understanding the formation and co-evolution ofblack holes and galaxies.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2010-07-15T19:08:18Z/2010-07-16T16:40:58Z
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 2011-08-07T00:00:00Z
Last Update 2025-01-27
Keywords "discovering secure agns", "co evolution", "chandra program", "xmm newton", "black holes", "XMM-Newton", "star clusters", "late type galaxy", "nuclear xray source", "xray sources", "nuclear xray sources", "XMM", "xray spectra"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Prof Smita Mathur, 2011, 'Identity of Nuclear X-ray Sources in Bulge-less Galaxies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-1rvee60