A dataset provided by the European Space Agency

Name 074360
Title Gamma Cas: double trouble
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0743600101

DOI 10.5270/esa-w0ttnn2
Author Dr Jose Torrejon
Description We propose to use the unique combination of high spectral resolution of XMM and the broadband coverage of NuSTAR to advance in the study of the nature of the mysterious Be-X-ray source gamma Cas. This object displays extreme conditions: a very hot plasma (>12 keV), a very hard spectrum, and a big circumstellar disk. Two hypotheses have been put forward to explain the origin of the X-ray emission in these objects: a) accretion onto a compact companion and b) emission from the star+disk interaction through stellar magnetic fields. Both of these challenge profoundly our current
Publication The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
Soft and hard X-ray dips in the light curves of u03b3 Cassiopeiae . Smith, M. A., Lopes de Oliveira, R., . MNRAS . 488-5048 . 2019 . 2019MNRAS.488.5048S ,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2014-07-24T13:33:09Z/2014-07-24T22:59:49Z
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 2015-08-25T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2015-08-25T22:00:00Z, 074360, 17.56_20190403_1200. https://doi.org/10.5270/esa-w0ttnn2