A dataset provided by the European Space Agency

Proposal ID 030673
Title Accreting black hole candidates in nuclear star clusters
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0306730201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0306730301

DOI https://doi.org/10.5270/esa-l3q3t0d
Principal Investigator, PI Dr Roberto Soria
Abstract Nuclear clusters (NCs) in late-type spiral galaxies have more in common withmassive, dense globular clusters (GCs) or super star clusters (SSCs) thanearly-type galactic bulges. They may host stellar- or intermediate-mass blackholes (IMBHs), and if so may also be X-ray bright. We propose an XMM-Newtonsurvey of nearby galaxies with well-studied NCs in order to determine how manyof these NCs have appreciable X-ray emission. These observations will serve as apilot study for a broader program targeting galactic NCs, which will allow us toplace important constraints on the parameter space for models of IMBH formation,and to compare the X-ray properties and remnant population of these threeclasses of star clusters (NCs, GCs, SSCs) as a function of environment, age, star-formation hist.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2005-08-13T06:47:45Z/2005-11-27T17:07:11Z
Version 21.51_20241115_1113
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 2006-12-13T00:00:00Z
Last Update 2026-06-19
Keywords "nuclear star clusters", "star formation hist", "type galactic bulges", "imbh formation", "nearby galaxy", "xray properties", "XMM", "parameter space", "nuclear cluster ncs", "accreting blackhole candidates", "XMM-Newton", "appreciable xray emission", "remnant population", "star cluster ncs", "xray bright", "xmm newton survey"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Roberto Soria, 2006, 'Accreting black hole candidates in nuclear star clusters', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-l3q3t0d
Rights Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.