A dataset provided by the European Space Agency

Name: Mysterious Broad Absorption Line Quasars (BALQSOs)
Published: 2008-02-03T00:00:00Z

Proposal ID	040304
Title	Mysterious Broad Absorption Line Quasars (BALQSOs)
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0403040101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0403040201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0403040301 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0403040401 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0403040501 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0403040601
DOI	https://doi.org/10.5270/esa-vb7skj7
Principal Investigator, PI	Prof Smita Mathur
Abstract	Just when we thought that the mystery of broad absorption line quasars issolved, new Chandra observations confront our understanding. Some BALQSOs appearunabsorbed in soft-X-rays and yet are X-ray weak. To understand these puzzlingobservations, we propose to observe a Chandra detected radio-loud BALQSO forprecision spectroscopy with EPIC PN. With the high quality XMM spectrum we willuncover spectral complexity, if any, which mimics the unabsorbed spectral shapein the crude Chandra data. It would be even more interesting if the spectrumturns out to be truly unabsorbed, as it will completely shake the presenthypothesis that BALQSOs are normal quasars viewed through special sightlines andwill imply that radio-loud BALQSOs are a separate class, perhaps related to quasar evolution.
Publications	An Extremely Luminous Panchromatic Outburst from the Nucleus of a Distant Galaxy \|Levan A. J. Tanvir N. R. et al. \| Sci \| 333-199 \| 2011 \| 2011Sci...333..199L \| http://ui.adsabs.harvard.edu/#abs/2011Sci...333..199L The XMM Cluster Survey: optical analysis methodology and the first data release \|Mehrtens Nicola Romer A. Kathy et al. \| MNRAS \| 423-1024 \| 2012 \| 2012MNRAS.423.1024M \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.1024M XMM-Newton Observations of the Radio-Loud Broad Absorption Line Quasar FBQS J131213.5+231958 \|Mathur Smita Dai Xinyu \| AJ \| 140-1960 \| 2010 \| 2010AJ....140.1960M \| http://ui.adsabs.harvard.edu/#abs/2010AJ....140.1960M A serendipitous XMM survey of the SDSS: the evolution of the colour-magnitude diagram of X-ray AGN from z= 0.8 to 0.1 \|Georgakakis Antonis Nandra K. \| MNRAS \| 414-992 \| 2011 \| 2011MNRAS.414..992G \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.414..992G The XMM Cluster Survey: X-ray analysis methodology \|Lloyd-Davies E. J. Romer A. Kathy et al. \| MNRAS \| 418-14 \| 2011 \| 2011MNRAS.418...14L \| http://ui.adsabs.harvard.edu/#abs/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 \| http://ui.adsabs.harvard.edu/#abs/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 al. \| MNRAS \| 423-3561 \| 2012 \| 2012MNRAS.423.3561C \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.3561C Classification of X-Ray Sources in the XMM-Newton Serendipitous Source Catalog \|Lin Dacheng Webb Natalie A. \| ApJ \| 756-27 \| 2012 \| 2012ApJ...756...27L \| http://ui.adsabs.harvard.edu/#abs/2012ApJ...756...27L An XMM-Newton Survey of the Soft X-Ray Background. II. An All-Sky Catalog of Diffuse O VII and O VIII Emission Intensities \|Henley David B. Shelton Robin L. \| ApJS \| 202-14 \| 2012 \| 2012ApJS..202...14H \| http://ui.adsabs.harvard.edu/#abs/2012ApJS..202...14H Ensemble X-ray variability of active galactic nuclei from serendipitous source catalogues \|Vagnetti F. Turriziani S. \| A&A \| 536-84 \| 2011 \| 2011A&A...536A..84V \| http://ui.adsabs.harvard.edu/#abs/2011A&A...536A..84V Using the Bright Ultrahard XMM-Newton survey to define an IR selection of luminous AGN based on WISE colours \|Mateos S. Alonso-Herrero A. et al. \| MNRAS \| 426-3271 \| 2012 \| 2012MNRAS.426.3271M \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.426.3271M Cross-correlation of the 2XMMi catalogue with Data Release 7 of the Sloan Digital Sky Survey \|Pineau F.-X. Motch C. et al. \| A&A \| 527-126 \| 2011 \| 2011A&A...527A.126P \| http://ui.adsabs.harvard.edu/#abs/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 al. \| A&A \| 545-66 \| 2012 \| 2012A&A...545A..66B \| http://ui.adsabs.harvard.edu/#abs/2012A&A...545A..66B Uncovering obscured luminous AGN with WISE \|Mateos S. Alonso-Herrero A. et al. \| MNRAS \| 434-941 \| 2013 \| 2013MNRAS.434..941M \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.434..941M The diversity of quasars unified by accretion and orientation \|Shen Yue Ho Luis C. \| Natur \| 513-210 \| 2014 \| 2014Natur.513..210S \| http://ui.adsabs.harvard.edu/#abs/2014Natur.513..210S Obscuration-dependent Evolution of Active Galactic Nuclei \|Buchner Johannes Georgakakis Antonis et al. \| ApJ \| 802-89 \| 2015 \| 2015ApJ...802...89B \| http://ui.adsabs.harvard.edu/#abs/2015ApJ...802...89B Revisiting the relationship between 6 mum and 2-10 keV continuum luminosities of AGN \|Mateos S. Carrera F. J. et al. \| MNRAS \| 449-1422 \| 2015 \| 2015MNRAS.449.1422M \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.449.1422M Sunyaev-Zeldovich effect or not? Detecting the main foreground effect of most galaxy clusters \|Xiao Weike Chen Chen et al. \| MNRAS \| 432-41 \| 2013 \| 2013MNRAS.432L..41X \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.432L..41X XMM-Newton publication statistics \|Ness J.-U. Parmar A. N. et al. \| AN \| 335-210 \| 2014 \| 2014AN....335..210N \| http://ui.adsabs.harvard.edu/#abs/2014AN....335..210N The Tight Relation between X-Ray and Ultraviolet Luminosity of Quasars \|Lusso E. Risaliti G. \| ApJ \| 819-154 \| 2016 \| 2016ApJ...819..154L \| http://ui.adsabs.harvard.edu/#abs/2016ApJ...819..154L Ensemble X-ray variability of active galactic nuclei. II. Excess variance and updated structure function \|Vagnetti F. Middei R. et al. \| A&A \| 593-55 \| 2016 \| 2016A&A...593A..55V \| http://ui.adsabs.harvard.edu/#abs/2016A&A...593A..55V The Interaction of the Fermi Bubbles with the Milky Ways Hot Gas Halo \|Miller Matthew J. Bregman Joel N. \| ApJ \| 829-9 \| 2016 \| 2016ApJ...829....9M \| http://ui.adsabs.harvard.edu/#abs/2016ApJ...829....9M SPIDERS: the spectroscopic follow-up of X-ray selected clusters of galaxies in SDSS-IV \|Clerc N. Merloni A. et al. \| MNRAS \| 463-4490 \| 2016 \| 2016MNRAS.463.4490C \| http://ui.adsabs.harvard.edu/#abs/2016MNRAS.463.4490C The Million Optical - Radio/X-ray Associations (MORX) Catalogue \|Flesch Eric W. \| PASA \| 33-52 \| 2016 \| 2016PASA...33...52F \| http://ui.adsabs.harvard.edu/#abs/2016PASA...33...52F Anisotropy of the galaxy cluster X-ray luminosity-temperature relation \|Migkas Konstantinos Reiprich Thomas H. \| A&A \| 611-50 \| 2018 \| 2018A&A...611A..50M \| http://ui.adsabs.harvard.edu/#abs/2018A&A...611A..50M The XMM Cluster Survey: Present status and latest results \|Viana P. T. P. Mehrtens N. et al. \| AN \| 334-462 \| 2013 \| 2013AN....334..462V \| http://ui.adsabs.harvard.edu/#abs/2013AN....334..462V 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 al. \| ApJS \| 243-15 \| 2019 \| 2019ApJS..243...15T \| http://ui.adsabs.harvard.edu/#abs/2019ApJS..243...15T Testing emergent gravity on galaxy cluster scales \|Tamosiunas Andrius Bacon David et al. \| JCAP \| 5-53 \| 2019 \| 2019JCAP...05..053T \| http://ui.adsabs.harvard.edu/#abs/2019JCAP...05..053T Chandra Follow-up of the SDSS DR8 Redmapper Catalog Using the MATCha Pipeline \|Hollowood Devon L. Jeltema Tesla et al. \| ApJS \| 244-22 \| 2019 \| 2019ApJS..244...22H \| http://ui.adsabs.harvard.edu/#abs/2019ApJS..244...22H Stellar mass as a galaxy cluster mass proxy: application to the Dark Energy Survey redMaPPer clusters \|Palmese A. Annis J. et al. \| MNRAS \| 493-4591 \| 2020 \| 2020MNRAS.493.4591P \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.493.4591P X-ray properties of the X-CLASS-redMaPPer galaxy cluster sample: the luminosity-temperature relation \|Molham Mona Clerc Nicolas et al. \| MNRAS \| 494-161 \| 2020 \| 2020MNRAS.494..161M \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.494..161M Multiwavelength classification of X-ray selected galaxy cluster candidates using convolutional neural networks \|Kosiba Matej Lieu Maggie et al. \| MNRAS \| 496-4141 \| 2020 \| 2020MNRAS.496.4141K \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.496.4141K SPIDERS: overview of the X-ray galaxy cluster follow-up and the final spectroscopic data release \|Clerc N. Kirkpatrick C. C. et al. \| MNRAS \| 497-3976 \| 2020 \| 2020MNRAS.497.3976C \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.497.3976C An X-Ray- and SZ-bright Diffuse Source toward M31: A Local Hot Bridge \|Qu Zhijie Huang Rui et al. \| ApJ \| 907-14 \| 2021 \| 2021ApJ...907...14Q \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...907...14Q A Luminous X-Ray Transient in SDSS J143359.16+400636.0: A Likely Tidal Disruption Event \|Brightman Murray Ward Charlotte et al. \| ApJ \| 909-102 \| 2021 \| 2021ApJ...909..102B \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...909..102B Classification of 4XMM-DR9 sources by machine learning \|Zhang Yanxia Zhao Yongheng \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z The Solar Cycle Temporal Variation of the Solar Wind Charge Exchange X-Ray Lines \|Qu Zhijie Koutroumpa Dimitra et al. \| ApJ \| 930-21 \| 2022 \| 2022ApJ...930...21Q \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...930...21Q X-ray emission from a rapidly accreting narrow-line Seyfert 1 galaxy at z = 6.56 \|Wolf J. Nandra K. et al. \| A&A \| 669-127 \| 2023 \| 2023A&A...669A.127W \| http://ui.adsabs.harvard.edu/#abs/2023A&A...669A.127W Hard X-Ray to Radio Multiwavelength SED Analysis of Local U/LIRGs in the GOALS Sample with a Self-consistent AGN Model including a Polar-dust Component \|Yamada Satoshi Ueda Yoshihiro et al. \| ApJS \| 265-37 \| 2023 \| 2023ApJS..265...37Y \| http://ui.adsabs.harvard.edu/#abs/2023ApJS..265...37Y The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII O VIII and Fe L-shell Transitions \|Pan Zeyang Qu Zhijie et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez Antonio C. \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R Robust constraints on feebly interacting particles using XMM-Newton \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-L101305 \| 2024 \| 2024PhRvD.109j1305L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L Multimessenger search for electrophilic feebly interacting particles from supernovae \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-103028 \| 2024 \| 2024PhRvD.109j3028L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 968-46 \| 2024 \| 2024ApJ...968...46D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D
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 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	2008-02-03T00:00:00Z
Last Update	2025-01-27
Keywords	"precision spectroscopy", "truly unabsorbed", "radio loud balqso", "EPIC", "uncover spectral complexity", "crude chandra data", "radio loud balqsos", "special sightlines", "separate class", "epic pn", "completely shake", "soft x rays", "quasar evolution", "quality xmm spectrum", "xray weak", "XMM", "unabsorbed spectral shape", "normal quasars viewed"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Prof Smita Mathur, 2008, 'Mysterious Broad Absorption Line Quasars (BALQSOs)', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-vb7skj7