Proposal ID | 011277 |
Title | Spectral Variability of 3C 273 |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0112770101 |
DOI | https://doi.org/10.5270/esa-t2b2sfc |
Principal Investigator, PI | Dr Martin Turner |
Abstract | GT-The time variability of 3C 273 is to be studied overthe first two years of XMM by repeated 5 ks observations(8 observations with 40 ks total, to be scheduled accordingto 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. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2001-12-16T15:35:23Z/2003-12-14T22:57:30Z |
Version | PPS_NOT_AVAILABLE |
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 | 2005-01-09T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "spectral variability", "soft excess", "3c 273", "XMM", "time variability" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Martin Turner, 2005, 'Spectral Variability of 3C 273', PPS_NOT_AVAILABLE, European Space Agency, https://doi.org/10.5270/esa-t2b2sfc |