| Name | 065123 |
| Title | The buddies of Babcock.s star - X-ray emission from extreme magnetic ApBp stars? |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0651230101 |
| DOI | https://doi.org/10.5270/esa-i3il18l |
| Author | European Space Agency |
| Description | We propose XMM-Newton observations of two extreme magnetic Ap/Bp stars, HD 75049 and HD 137509, that exhibit surface field strengths of about 30 kG. HD 75049 is an Ap star and its extraordinary large magnetic field is dominated by a strong dipole component. The B9p star HD 137509 exhibits a similar surface field strength, but the underlying magnetic structure has a far more complex field geometry. Our targets have magnetic fields that rival famous Babcock.s star that was recently established as a bright X-ray source. X-ray emission from intermediate mass stars is thought to originate from magnetically confined wind-shocks and the aim of this proposal is to test, whether HD 75049 and HD 137509 emit X-rays and if so, to determine their basic X-ray properties. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2010-10-04T22:17:26Z/2010-11-28T01:53:42Z |
| 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 | 2011-12-22T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2011, The Buddies Of Babcock.S Star - X-Ray Emission From Extreme Magnetic Apbp Starsquestionmark, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-i3il18l |