| Proposal ID | 072345 |
| Title | Accretion states of the transient ULX in M83 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0723450101 |
| DOI | https://doi.org/10.5270/esa-ogd6o85 |
| Principal Investigator, PI | Dr Kip Kuntz |
| Abstract | In Dec 2010, Chandra revealed a previously unknown ULX in M83 where there hadbeen no detectable X-ray source before. It has varied in flux and hardness buthas remained bright for nearly two years. Our analysis shows that it is a blackhole (BH) accreting from a low-mass secondary. The spectral evolution of atransient ULX as it fades is a critical test of the nature of these intriguingobjects. Our goal is to determine whether it goes through the same canonicalaccretion states defined for Galactic BHs. We propose two 50-ks observations,separated by a few months, to identify the accretion state(s), accuratelydetermine the physical parameters, and compare with stellar-mass BH states. Thiswill constrain the mass of this ULX and help clarify the relation between ULXs and stellar-mass BHs. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2013-08-07T16:21:05Z/2014-01-12T03:48:59Z |
| 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 | 2015-01-23T23:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "spectral evolution", "canonical accretion", "intriguing objects", "low mass secondary", "galactic bhs", "stellar mass bhs", "remained bright", "dec 2010", "M83", "detectable xray source", "stellar mass bh", "transient ulx", "physical parameters", "blackhole bh accreting" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Kip Kuntz, 2015, 'Accretion states of the transient ULX in M83', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ogd6o85 |