| Proposal ID | 020198 |
| Title | DISCRETE X-RAY SOURCES BETWEEN M 81 AND NGC 3077 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0201980101 |
| DOI | https://doi.org/10.5270/esa-gp38j1m |
| Principal Investigator, PI | Prof MARTIN WARD |
| Abstract | We propose a 30ks XMM-Newton observation of the tidal interaction region betweenthe galaxies M 81 and NGC 3077. This region contains an overdensity of X-raysources (Bi, Arp, and Zimmermann 1994) in and around the HI bridge between thegalaxies. Our observation will 1) determine whether these sources are indeedassociated with the M 81 system, 2) examine the physical nature of the sources(e.g. distinguish XRBs from SNRs), and 3) study differences in the X-raypopulations of the tidal debris region and NGC 3077, and how this relates to thestar formation history of the M 81 system. We also request a 10ks Chandra HRCobservation in order to obtain sub-arcsecond astrometry for the X-ray sources,which will allow us to search for optical counterparts. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2004-03-26T22:30:01Z/2004-03-27T07:26:55Z |
| 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 | 2005-05-08T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "XMM-Newton", "discrete xray sources", "sub arcsecond astrometry", "star formation history", "XMM", "xray populations", "M 81", "tidal interaction region", "zimmermann 1994", "NGC 3077", "tidal debris region", "xray sources", "ngc 3077", "distinguish xrbs", "optical counterparts", "chandra hrc", "xray sources bi", "supernova remnant", "81 system", "xmm newton", "hi bridge" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof MARTIN WARD, 2005, 'DISCRETE X-RAY SOURCES BETWEEN M 81 AND NGC 3077', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-gp38j1m |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |