A dataset provided by the European Space Agency

Name 080383
Title Classification of three enigmatic variable stars
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0803830201

DOI https://doi.org/10.5270/esa-w250tc0
Author Dr Hauke Worpel
Description Long-term optical monitoring campaigns such as the MACHO survey uncover many new variable objects with intriguing light curves that warrant follow-up observations in other wavelengths. We propose to use XMM-Newton to observe three MACHO-identified variable stars whose optical light curves and spectra defy easy classification. Two may be magnetic cataclysmic variable stars with atypically slow variability, and we have no plausible classification for the third. All three sources promise to increase our knowledge of the Galactic X-ray emission in the direction of the Galactic center.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2018-04-11T08:00:50Z/2018-04-11T14:27:09Z
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 2019-04-30T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2019, 080383, 17.56_20190403_1200. https://doi.org/10.5270/esa-w250tc0