A dataset provided by the European Space Agency

Name 077099
Title The wind of ksi Per: a tomographic view of stellar wind dynamics
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0770990101
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0770990201

DOI 10.5270/esa-40zdb12
Author Dr Derck Massa
Description We propose to obtain 11 STIS and 10 XMM spectra of ksi Per to provide the critical information needed to progress our understanding of the structure of O star winds. The details of structures and interactions of the wind are needed to reliably translate observational diagnostics into physical quantities such as mass loss rates which are controversial. The proposed set of combined HST and XMM observations will provide conclusive proof of whether the discrete absorption components observed in UV wind line profiles are related to X-ray variability and they will provide the phase difference between the two, which determines their relative locations in the winds. The window of opportunity to obtain such an important and unique data set is closing.
Publication Coordinated UV and X-Ray Spectroscopic Observations of the O-type Giant xi Per: The Connection between X-Rays and Large-scale Wind Structure . Massa, Derck, Oskinova, Lida, et all. . ApJ . 873-81 . 2019 . 2019ApJ...873...81M ,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2016-02-06T23:14:38Z/2016-02-29T20:46:38Z
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 2017-03-29T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2017-03-29T22:00:00Z, 077099, 17.56_20190403_1200. https://doi.org/10.5270/esa-40zdb12