A dataset provided by the European Space Agency

Name 069132
Title The nature of X-ray emission in BL Lac objects


DOI https://doi.org/10.5270/esa-f21mx2e
Author Dr Francesco Massaro
Description The 77% of TeV extragalactic sources are BL Lacs. They belong to the High frequency peaked BL Lacs (HBLs) subclass characterized by a low-energy component with power peaking between the UV and the X-rays. We propose xmmvirgulobservations of a selected sample of HBLs, to study the spectral behavior of their optical to X-ray component. In addition, on the basis of our previous X-ray analyses of TeV e non TeV HBLs, these proposed xmmvirgulobservations will allow us to identify BL Lac candidates for future TeV observations.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2012-05-28T05:40:35Z/2013-01-09T02:51:21Z
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 2014-01-25T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2014-01-25T00:00:00Z, 069132, 17.56_20190403_1200. https://doi.org/10.5270/esa-f21mx2e