| Proposal ID | 076312 |
| Title | Deep observations of the northern disc of M31 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0763120101 |
| DOI | https://doi.org/10.5270/esa-rouvsy2 |
| Principal Investigator, PI | Dr Manami Sasaki |
| Abstract | The XMM-Newton survey of M31 has revealed extended diffuse emission, inparticular on the northern side, which is well correlated with the northernstar-forming ring of the galaxy. We propose two deep pointings with 200 ksexposure each to cover the star-forming disc and to perform a detailed study ofthe diffuse emission. We will thus map the X-ray emission of the hotinterstellar medium (ISM) in a spiral galaxy like our own on arcmin scales andmeasure the temperature, density, and filling factor of brighter ISM structures.In addition, we will obtain a complete list of X-ray sources in the northerndisc of M31 down to the confusion limit of a few 10^34 erg s^-1, with improvedvariability and spectral information for all sources. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2015-06-28T06:07:53Z/2016-01-22T23:08:07Z |
| 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 | 2017-02-05T23:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "xray sources", "complete list", "XMM-Newton", "confusion limit", "northern disc", "brighter ism structures", "XMM", "xmm newton survey", "star forming disc", "improved variability", "xray emission", "filling factor", "M31", "spectral information", "diffuse emission", "arcmin scales", "spiral galaxy", "deep pointings" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Manami Sasaki, 2017, 'Deep observations of the northern disc of M31', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-rouvsy2 |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |