| Name | 030060 |
| Title | Towards an understanding of the Ofp phenomenon |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0300600201 |
| DOI | https://doi.org/10.5270/esa-6ctxcce |
| Author | Dr Yael Naze |
| Description | We propose to observe the peculiar Of?p star HD191612 for 3*20 ks with XMM-Newton. In the visible domain, this star displays spectacular line profile variations alternating between two different spectral states (O6-O8) with a period of virgul540d. A monitoring of this peculiar object in the X-ray domain will provide crucial information for constraining its nature. The requested XMM data are part of a multiwavelength observing campaign that also includes coordinated observations in the UV (FUSE) and visible (ground-based telescopes) ranges. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2005-04-05T13:03:17Z/2005-10-08T08:54:21Z |
| 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 | 2006-10-28T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2006-10-28T00:00:00Z, 030060, 17.56_20190403_1200. https://doi.org/10.5270/esa-6ctxcce |