A dataset provided by the European Space Agency

Name 030048
Title Multifrequency variability of OJ 287 before and during the next outburst
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0300480201
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0300480301
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0300480401
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0300480501

DOI 10.5270/esa-czsavaq
Author Dr Stefano Ciprini
Description The BL Lac object OJ 287 (z=0.306) is a highly variable, low-energy peaked blazar, which has shown intermittent emission with outstanding pseudo-periodic outbursts every 11-12 years. Long-term and densely-sampled light curves have been collected in the radio and optical bands since 1891. We aim at studying the spectral and temporal behaviour of OJ 287, on both long and short time scales, in the radio, mm, optical, UV and X-ray band, before the next major outburst, expected to occur in spring or fall 2006. Ground-based multifrequency campaigns have already been planned in the frame of the WEBT and ENIGMA collaborations and VLBI observations proposed, in order to search for correlations among the synchrotron radio-mm flux, the parsec jet structure and the inverse-Compton X-ray emission.
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Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2005-04-12T13:13:21Z/2005-11-04T13:11:32Z
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 2006-12-15T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2006-12-15T00:00:00Z, 030048, 17.56_20190403_1200. https://doi.org/10.5270/esa-czsavaq