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
License: https://creativecommons.org/licenses/by-nc/3.0/igo

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 (~3 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 New 511 keV Line Data Provide Strongest sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 973-L6 \| 2024 \| 2024ApJ...973L...6D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...973L...6D
Instrument	EMOS1, EMOS2, EPN, RGS1, RGS2
Temporal Coverage	2016-02-22T04:57:37Z/2016-02-23T20:22:37Z
Version	21.51_20241115_1113
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
Last Update	2026-07-09
Keywords	"x rays", "stellar surface", "hard xray", "modulated xray emission", "XMM-Newton", "rho ophiuchi", "exposure acis", "persistent magnetic spot", "magnetic fields", "hard band", "spatial resolution", "EPIC", "XMM", "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.', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-lwi01gz
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.