| Proposal ID | 082033 |
| Title | The nature of hard X-ray selected CV candidates |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0820330401 |
| DOI | https://doi.org/10.5270/esa-ctgh0kb |
| Principal Investigator, PI | Dr Domitilla de Martino |
| Abstract | About 20% of Galactic hard X-ray galactic detected in the INTEGRAL and Swiftsurveys are accreting white dwarf binaries (CVs). The majority harbours magneticprimaries, which are disputed to be important contributors to the galacticpopulation of low-luminosity X-ray sources. Optical follow-ups allow to selectgood candidates, but a secure identification resides in the X-rays. XMM-Newtonhas shown the unique potential to detect X-ray spin pulses and caracterize thespectral properties with high S/N data. We here propose 9 new candidates withthe ultimate goal to obtain a flux-limited sample down to 8E-12cgs and allow atrue census of hard X-ray CVs, in view of the accurate distances to be providedshortly by Gaia. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2018-04-24T21:10:18Z/2019-03-28T15:22:16Z |
| 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 | 2020-04-24T22:00:00Z |
| Last Update | 2026-06-19 |
| Keywords | "provided shortly", "cv candidates", "xray spin pulses", "hard xray", "XMM", "xmm newton", "secure identification resides", "swift surveys", "harbours magnetic primaries", "XMM-Newton", "galactic population", "spectral properties", "hard xray cvs", "8e 12cgs", "flux limited sample" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Domitilla de Martino, 2020, 'The nature of hard X-ray selected CV candidates', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-ctgh0kb |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |