Name | 076090 |
Title | X-rays and magnetism of early B stars. Rho Ophiuchi as a test case. |
URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0760900101 |
DOI | https://doi.org/10.5270/esa-lwi01gz |
Author | Dr Ignazio Pillitteri |
Description | Among early B stars there are cases of emitters of hard X-rays and with strong magnetism, but little is known about the mechanisms of production of such X-rays and magnetic fields. We have discovered a modulated X-ray emission in the Rho Ophiuchi binary system (B2VI+B2V), observed in a hard band (virgul3 keV), and suggesting an origin due to strong magnetism in this system. With this proposal, we aim to understand the origin of the X-rays with a joint campaign with XMM-Newton and Chandra. With a 130 ks XMM-Newton EPIC exposure, we will assess whether a persistent magnetic spot is present on the stellar surface, which is its period and intensity. With the spatial resolution of Chandra and a 10 ks exposure ACIS-I we will exactly identify the site of production of X-rays. |
Publication | No observations found associated with the current proposal |
Instrument | EMOS1, EMOS2, EPN, RGS1, RGS2 |
Temporal Coverage | 2016-02-22T04:57:37Z/2016-02-23T20:22:37Z |
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 | 2017-03-09T23:00:00Z |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Ignazio Pillitteri, 2017, 076090, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-lwi01gz |