A dataset provided by the European Space Agency

Name 040304
Title Mysterious Broad Absorption Line Quasars (BALQSOs)
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0403040101
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0403040201
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0403040301
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0403040401
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0403040501
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0403040601

DOI 10.5270/esa-vb7skj7
Author Prof Smita Mathur
Description Just when we thought that the mystery of broad absorption line quasars is solved, new Chandra observations confront our understanding. Some BALQSOs appear unabsorbed in soft-X-rays and yet are X-ray weak. To understand these puzzling observations, we propose to observe a Chandra detected radio-loud BALQSO for precision spectroscopy with EPIC PN. With the high quality XMM spectrum we will uncover spectral complexity, if any, which mimics the unabsorbed spectral shape in the crude Chandra data. It would be even more interesting if the spectrum turns out to be truly unabsorbed, as it will completely shake the present hypothesis that BALQSOs are normal quasars viewed through special sightlines and will imply that radio-loud BALQSOs are a separate class, perhaps related to quasar evolution.
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The XMM Cluster Survey: X-ray analysis methodology . Lloyd-Davies, E. J., Romer, A. Kathy, et all. . MNRAS . 418-14 . 2011 . 2011MNRAS.418...14L ,
Exospheric solar wind charge exchange as seen by XMM-Newton . Carter, J. A., Semba, S., . AN . 333-313 . 2012 . 2012AN....333..313C ,
The cosmological analysis of X-ray cluster surveys - II. Application of the CR-HR method to the XMM archive . Clerc, N., Sadibekova, T., et all. . MNRAS . 423-3561 . 2012 . 2012MNRAS.423.3561C ,
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Cross-correlation of the 2XMMi catalogue with Data Release 7 of the Sloan Digital Sky Survey . Pineau, F.-X., Motch, C., et all. . A&A . 527-126 . 2011 . 2011A&A...527A.126P ,
Exploring X-ray and radio emission of type 1 AGN up to z ~ 2.3 . Ballo, L., Heras, F. J. H., et all. . A&A . 545-66 . 2012 . 2012A&A...545A..66B ,
Uncovering obscured luminous AGN with WISE . Mateos, S., Alonso-Herrero, A., et all. . MNRAS . 434-941 . 2013 . 2013MNRAS.434..941M ,
The diversity of quasars unified by accretion and orientation . Shen, Yue, Ho, Luis C., . Natur . 513-210 . 2014 . 2014Natur.513..210S ,
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Revisiting the relationship between 6 mum and 2-10 keV continuum luminosities of AGN . Mateos, S., Carrera, F. J., et all. . MNRAS . 449-1422 . 2015 . 2015MNRAS.449.1422M ,
Sunyaev-Zel.dovich effect or not? Detecting the main foreground effect of most galaxy clusters . Xiao, Weike, Chen, Chen, et all. . MNRAS . 432-41 . 2013 . 2013MNRAS.432L..41X ,
XMM-Newton publication statistics . Ness, J.-U., Parmar, A. N., et all. . AN . 335-210 . 2014 . 2014AN....335..210N ,
Ensemble X-ray variability of active galactic nuclei. II. Excess variance and updated structure function . Vagnetti, F., Middei, R., et all. . A&A . 593-55 . 2016 . 2016A&A...593A..55V ,
The Interaction of the Fermi Bubbles with the Milky Way.s Hot Gas Halo . Miller, Matthew J., Bregman, Joel N., . ApJ . 829-9 . 2016 . 2016ApJ...829....9M ,
SPIDERS: the spectroscopic follow-up of X-ray selected clusters of galaxies in SDSS-IV . Clerc, N., Merloni, A., et all. . MNRAS . 463-4490 . 2016 . 2016MNRAS.463.4490C ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
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A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). II. Physical Properties Derived from the SED Fitting with Optical, Infrared, and Radio Data . Toba, Yoshiki, Yamashita, Takuji, et all. . ApJS . 243-15 . 2019 . 2019ApJS..243...15T ,
Testing emergent gravity on galaxy cluster scales . Tamosiunas, Andrius, Bacon, David, et all. . JCAP . 5-53 . 2019 . 2019JCAP...05..053T ,
Chandra Follow-up of the SDSS DR8 Redmapper Catalog Using the MATCha Pipeline . Hollowood, Devon L., Jeltema, Tesla, et all. . ApJS . 244-22 . 2019 . 2019ApJS..244...22H ,
Stellar mass as a galaxy cluster mass proxy: application to the Dark Energy Survey redMaPPer clusters . Palmese, A., Annis, J., et all. . MNRAS . 493-4591 . 2020 . 2020MNRAS.493.4591P ,
X-ray properties of the X-CLASS-redMaPPer galaxy cluster sample: the luminosity-temperature relation . Molham, Mona, Clerc, Nicolas, et all. . MNRAS . 494-161 . 2020 . 2020MNRAS.494..161M ,
Multiwavelength classification of X-ray selected galaxy cluster candidates using convolutional neural networks . Kosiba, Matej, Lieu, Maggie, et all. . MNRAS . 496-4141 . 2020 . 2020MNRAS.496.4141K ,
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Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2006-12-28T02:37:47Z/2007-01-07T08:33:00Z
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 2008-02-03T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2008-02-03T00:00:00Z, 040304, 17.56_20190403_1200. https://doi.org/10.5270/esa-vb7skj7