A dataset provided by the European Space Agency

Name 084020
Title Hunting for gamma Cas objects - continuing
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840200101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840200201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840200301
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840200401
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840200501
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840200901
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840201201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840201301
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840201501
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840201601

DOI https://doi.org/10.5270/esa-35c7tlj
Author Dr Yael Naze
Description gamma Cas objects are Be stars presenting an unusually intense and hard X-ray
emission. Currently, only about 20 such objects are known and it is very likely
that additional cases, even bright ones, remain undetected. To improve the
situation, we propose to observe in .fulfill. mode a set of well-chosen Be stars
with snapshots to search for the characteristic gamma Cas signatures.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2019-03-26T10:41:06Z/2019-11-19T12:57:11Z
Version 18.00_20191217_1110
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 2020-12-25T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Yael Naze, 2020, 084020, 18.00_20191217_1110, European Space Agency, https://doi.org/10.5270/esa-35c7tlj