A dataset provided by the European Space Agency

Name 011185
Title X-ray spectroscopy of the BL Lac H1426+428
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0111850201

DOI https://doi.org/10.5270/esa-vipokn2
Author Dr Bert Brinkman
Description GT - We propose to measure the parameters of the absorption feature at virgul600 eV originally detected by BBXRT in H1426+428. Sharp absorption features appear to be common in the soft X-ray spectra of BL Lac objects, as shown by several detections made with BBXRT: the lines are generally attributed to blue-shifted Lyman alpha OVIII resonance absorption, implying rapid mass outflow from the active nucleus. However the exact nature and origin of these features is still unclear. The RGS will provide an accurate measure of the line energy and width, of the column density and the ionisation level of the gas, ultimately giving clues to the origin of the gas itself.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2001-06-16T00:49:21Z/2001-06-16T19:52:15Z
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 2002-12-06T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2002-12-06T00:00:00Z, 011185, 17.56_20190403_1200. https://doi.org/10.5270/esa-vipokn2