A dataset provided by the European Space Agency

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