| Name | 067199 |
| Title | X-ray Study of Tau-Sco-like Massive Stars |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0671990101 |
| DOI | https://doi.org/10.5270/esa-3mz5v5m |
| Author | Dr Richard Ignace |
| Description | We request 50 ksec of XMM time to obtain EPIC spectra of two early B type stars, HD66665 and HD63425, which have observable properties similar to tau Sco. Specifically, they are both slowly rotating, magnetic early, main sequence B stars with peculiar UV resonance line profiles. The proposed observations will determine whether their X-ray spectra also contain an anomalously hard component like tau Sco.s. If so, the new observations will provide valuable insight into the interaction of X-ray and UV spectral characteristics and will demonstrate that tau Sco is not a simple curiosity, but rather the proto-type of a class of magnetic stars which are, perhaps, part of a sequence, or a particular evolutionary phase of massive, magnetic stars. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2011-05-06T20:20:17Z/2011-10-30T04:56:03Z |
| 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 | 2012-11-29T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2012-11-29T00:00:00Z, 067199, 17.56_20190403_1200. https://doi.org/10.5270/esa-3mz5v5m |