
| Proposal ID | 050007 |
| Title | Monitoring of Ultraluminous X-ray sources in the Antennae Galaxies |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0500070201 |
| DOI | https://doi.org/10.5270/esa-wyug14j |
| Principal Investigator, PI | Dr Hua Feng |
| Abstract | Spectral state transitions are a key signature of black hole binaries (BHBs) andreflect the properties of the accretion flow and the central compact object.They have been systematically studied in Galactic BHBs and found to followwell-defined patterns. Ultraluminous X-ray sources (ULXs) are eitherintermediate-mass black holes or a special class of stellar-mass black holes,and should follow a set pattern of spectral evolution which is essentiallyassociated with their natures. We propose 6 XMM observations of the Antennaegalaxies (NGC 4038/4039) with an exposure of 20 ksec each and at intervals ofweeks to months to see if state transitions of ULXs have the same, or different,pattern as Galactic BHBs. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2007-06-09T08:12:37Z/2007-12-27T04:30:33Z |
| 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 | 2009-03-15T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "XMM", "central compact object", "defined patterns", "special class", "key signature", "ultraluminous xray sources", "galactic bhbs", "antennae galaxy", "intermediate mass blackhole", "NGC 4038", "accretion flow", "spectral evolution", "blackhole binary bhbs", "set pattern" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Hua Feng, 2009, 'Monitoring of Ultraluminous X-ray sources in the Antennae Galaxies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-wyug14j |