A dataset provided by the European Space Agency

Name 011277
Title Spectral Variability of 3C 273


DOI https://doi.org/10.5270/esa-t2b2sfc
Author Dr Martin Turner
Description GT-The time variability of 3C 273 is to be studied over the first two years of XMM by repeated 5 ks observations (8 observations with 40 ks total, to be scheduled according to the visibility of the source). XMM is capable of observing the soft and the hard X-ray spectral components simultaneously thereby allowing to study the variability of the spectrum and its features, e.g that of the soft excess.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2001-12-16T15:35:23Z/2003-12-14T22:57:30Z
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 2005-01-09T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2005-01-09T00:00:00Z, 011277, PPS_NOT_AVAILABLE. https://doi.org/10.5270/esa-t2b2sfc