| Proposal ID | 078301 |
| Title | A Survey of X-Ray Emission from AGB Stars with FUV Excesses (fuvAGB stars) |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0783010601 |
| DOI | https://doi.org/10.5270/esa-c1f8rq0 |
| Principal Investigator, PI | Dr Raghvendra Sahai |
| Abstract | Based on the exciting results of small pilot X-ray surveys, we propose anextended survey for X-ray and UV emission from AGB stars that are candidates forhaving binary companions with active accretion. These objects were identifiedvia our innovative technique to search for FUV/NUV excesses in AGB stars usingGALEX. This survey will result in the first catalog of co-eval X-ray and UVobservations of AGB stars, and characterization of this high-energy emission(e.g., X-ray temperature, luminosity, variability). The survey will enable thedevelopment of models for the origin of these newly-discovered high-energyphenomena in AGB stars, and lead to vital breakthroughs in our understanding ofaccretion-related phenomena and binarity in AGB stars. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2016-05-11T11:27:14Z/2016-12-24T23:38:47Z |
| 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 | 2018-01-10T23:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "accretion related phenomena", "vital breakthroughs", " xray temperature", "energy phenomena", "binary companions", "agb stars", "co eval xray", "energy emission", "nuv excesses", "uv emission", "innovative technique", "active accretion", "pilot xray surveys", "xray emission", "." |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Raghvendra Sahai, 2018, 'A Survey of X-Ray Emission from AGB Stars with FUV Excesses (fuvAGB stars)', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-c1f8rq0 |