| Name | 006577 |
| Title | X-rays from the brightest globular cluster of M31 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0065770101 |
| DOI | https://doi.org/10.5270/esa-f6tb4tn |
| Author | European Space Agency |
| Description | We propose to observe G1 (=Mayall II), the brightest and most massive globular cluster of M31. It is an extremely dense and massive globular cluster, an excellent target in which to search for a bright X-ray source. ROSAT did not observe it. The primary goal of our proposal is to determine whether G1 contains an X-ray source, as a pilot observation for a later proposal. If the source is bright we can make a preliminary spectral classification (neutron- star vs. black hole binary) and a preliminary search for orbital variation. It is interesting for theory to know whether this extremely dense cluster contains a bright source; and also which fractions of bright sources are neutron-star binaries and black-hole binaries. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2001-01-11T03:15:05Z/2001-01-11T05:35:26Z |
| Version | 17.56_20190403_1200 |
| Mission Description | The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 | 2002-10-09T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2002, X-Rays From The Brightest Globular Cluster Of M31, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-f6tb4tn |