A dataset provided by the European Space Agency

Name: X-rays and magnetism of early B stars. Rho Ophiuchi as a test case.
Published: 2017-03-09T23:00:00Z

Proposal ID	076090
Title	X-rays and magnetism of early B stars. Rho Ophiuchi as a test case.
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0760900101
DOI	https://doi.org/10.5270/esa-lwi01gz
Principal Investigator, PI	Dr Ignazio Pillitteri
Abstract	Among early B stars there are cases of emitters of hard X-rays and with strongmagnetism, but little is known about the mechanisms of production of such X-raysand magnetic fields. We have discovered a modulated X-ray emission in the RhoOphiuchi binary system (B2VI+B2V), observed in a hard band (virgul3 keV), andsuggesting 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 withXMM-Newton and Chandra. With a 130 ks XMM-Newton EPIC exposure, we will assesswhether a persistent magnetic spot is present on the stellar surface, which isits period and intensity. With the spatial resolution of Chandra and a 10 ksexposure ACIS-I we will exactly identify the site of production of X-rays.
Publications	The early B-type star Rho Ophiuchi A is an X-ray lighthouse \|Pillitteri, Ignazio, Wolk, Scott J., et al. \| A&A \| 602-92 \| 2017 \| 2017A&A...602A..92P \| http://ui.adsabs.harvard.edu/#abs/2017A&A...602A..92P Evidence for radio and X-ray auroral emissions from the magnetic B-type star \\u03c1 Oph A \|Leto, P., Trigilio, C., et al. \| MNRAS \| 493-4657 \| 2020 \| 2020MNRAS.493.4657L \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.493.4657L Classification of 4XMM-DR9 sources by machine learning \|Zhang, Yanxia, Zhao, Yongheng, \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z Robust constraints on feebly interacting particles using XMM-Newton \|Luque, Pedro De la Torre, Balaji, Shyam, \| PhRvD \| 109-L101305 \| 2024 \| 2024PhRvD.109j1305L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L Multimessenger search for electrophilic feebly interacting particles from supernovae \|Luque, Pedro De la Torre, Balaji, Shyam, \| PhRvD \| 109-103028 \| 2024 \| 2024PhRvD.109j3028L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints \|De la Torre Luque, Pedro, Balaji, Shyam, \| ApJ \| 968-46 \| 2024 \| 2024ApJ...968...46D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D
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 Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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
Keywords	"stellar surface", "hard xray", "magnetic fields", "XMM", "hard band", "persistent magnetic spot", "rho ophiuchi", "exposure acis", "modulated xray emission", "XMM-Newton", "x rays", "EPIC", "spatial resolution", "xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Ignazio Pillitteri, 2017, 'X-rays and magnetism of early B stars. Rho Ophiuchi as a test case.', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-lwi01gz