Proposal ID | 008675 |
Title | X-Rays from Radio-Loud Broad Absorption Line QSOs |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0086750101 |
DOI | https://doi.org/10.5270/esa-uaz623j |
Principal Investigator, PI | Dr Michael Brotherton |
Abstract | We propose observations of three extreme newly discovered radio-loud BroadAbsorption Line QSOs (BALQSOs). Previous ROSAT observations of radio-quietBALQSOs, which were the only kind known until recently, show that they are X-rayquiet compared to normal radio-quiet QSOs. This surprising result means thatBALQSOs are either (1) intrinsically X-ray-quiet, or (2) absorbed by high columndensity material (N_H = 1E23 cm-2 or higher). ASCA observations suggest thelatter. Radio-loud QSOs are more X-ray bright than radio-quiet QSOs. XMM can beused to obtain decent spectra of our radio-loud BALQSOs in modest exposure times(10 ks each) and verify that they are normal but absorbed radio-loud QSOs, andmeasure their power law spectral indices and columns. |
Publications |
|
Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2001-11-03T08:28:56Z/2001-11-03T11:58:22Z |
Version | 17.56_20190403_1200 |
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 | 2002-11-22T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "modest exposure", "1e23 cm", "XMM", "radio loud balqsos", "xray bright", "radio loud qsos", "ROSAT", "decent spectra", "x rays", "xray quiet", "radio quiet qsos", "radio quiet balqsos" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Michael Brotherton, 2002, 'X-Rays from Radio-Loud Broad Absorption Line QSOs', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-uaz623j |