2010

A strong redshift dependence of the broad absorption line quasar fraction

Allen, James T., Hewett, Paul C., Maddox, Natasha et al.

Understand

We describe the application of non-negative matrix factorisation to generate compact reconstructions of quasar spectra from the Sloan Digital Sky Survey (SDSS), with particular reference to broad absorption line quasars (BALQSOs).

BAL properties are measured for SiIV lambda1400, CIV lambda1550, AlIII lambda1860 and MgII lambda2800, resulting in a catalogue of 3547 BALQSOs.
Two corrections, based on extensive testing of synthetic BALQSO spectra, are applied in order to estimate the intrinsic fraction of CIV BALQSOs.
First, the probability of an observed BALQSO spectrum being identified as such by our algorithm is calculated as a function of redshift, signal-to-noise ratio and BAL properties.

Built on

Weymann R. J., Carswell R. F., Smith M. G., 1981, ARA&A, 19, 41
1981
Earlier work this paper cites.
Cardelli J. A., Clayton G. C., Mathis J. S., 1989, ApJ, 345, 245
1989
Earlier work this paper cites.
Weymann R. J., Morris S. L., Foltz C. B., Hewett P. C., 1991, ApJ, 373, 23
1991
Earlier work this paper cites.
Sprayberry D., Foltz C. B., 1992, ApJ, 390, 39
1992
Earlier work this paper cites.
Voit G. M., Weymann R. J., Korista K. T., 1993, ApJ, 413, 95
1993
Earlier work this paper cites.
Warren S. J., Hewett P. C., Osmer P. S., 1994, ApJ, 421, 412
1994
Earlier work this paper cites.
Becker R. H., White R. L., Helfand D. J., 1995, ApJ, 450, 559
1995
Earlier work this paper cites.
Becker R. H., Gregg M. D., Hook I. M., McMahon R. G., White R. L., Helfand D. J., 1997, ApJ, 479, L93
1997
Earlier work this paper cites.
Hamann F., 1998, ApJ, 500, 798
1998
Earlier work this paper cites.
Schlegel D. J., Finkbeiner D. P., Davis M., 1998, ApJ, 500, 525
1998
Earlier work this paper cites.
Fan X., 1999, AJ, 117, 2528
1999
Earlier work this paper cites.
Lee D. D., Seung H. S., 1999, Nat, 401, 788
1999
Earlier work this paper cites.
Lupton R. H., Gunn J. E., Szalay A. S., 1999, AJ, 118, 1406
1999
Earlier work this paper cites.
Elvis M., 2000, ApJ, 545, 63
2000
Earlier work this paper cites.
Lee D. D., Seung H. S., 2000, Advanced Neural Inf. Processing Syst., 13, 556
2000
Earlier work this paper cites.
Proga D., Stone J. M., Kallman T. R., 2000, ApJ, 543, 686
2000
Earlier work this paper cites.
York D. G., et al., 2000, AJ, 120, 1579
Original
2000
Earlier work this paper cites.
Hall P. B., et al., 2002, ApJS, 141, 267
2002
Earlier work this paper cites.
Richards G. T., et al., 2002, AJ, 123, 2945
2002
Earlier work this paper cites.

Similar

Hewett P. C., Foltz C. B., 2003, AJ, 125, 1784
2003
Cited alongside, same era.
Begelman M. C., 2004, in Ho L. C., ed., Carnegie Observatories Astrophysics Ser. Vol. 1, Coevolution of Black Holes and Galaxies, Cambridge Univ. Press, Cambridge, p. 374
2004
Cited alongside, same era.
Hopkins P. F., et al., 2004, AJ, 128, 1112
2004
Cited alongside, same era.
Proga D., Kallman T. R., 2004, ApJ, 616, 688
2004
Cited alongside, same era.
Songaila A., 2004, AJ, 127, 2598
2004
Cited alongside, same era.
Wild V., Hewett P. C., 2005, MNRAS, 358, 1083
2005
Cited alongside, same era.
Gabel J. R., Arav N., Kim T., 2006, ApJ, 646, 742
2006
Cited alongside, same era.
Hewett P. C., Warren S. J., Leggett S. K., Hodgkin S. T., 2006, MNRAS, 367, 454
2006
Cited alongside, same era.
Lípari S. L., Terlevich R. J., 2006, MNRAS, 368, 1001
2006
Cited alongside, same era.
Trump J. R., et al., 2006, ApJS, 165, 1
2006
Cited alongside, same era.
Blanton M. R., Roweis S., 2007, AJ, 133, 734
2007
Cited alongside, same era.
Chiu K., Richards G. T., Hewett P. C., Maddox N., 2007, MNRAS, 375, 1180
2007
Cited alongside, same era.

Then

Casebeer D., Baron E., Leighly K., Jevremovic D., Branch D., 2008, ApJ, 676, 857
2008
Later among the works it cites.
Dai X., Shankar F., Sivakoff G. R., 2008, ApJ, 672, 108
2008
Later among the works it cites.
Faucher-Giguère C., Prochaska J. X., Lidz A., Hernquist L., Zaldarriaga M., 2008, ApJ, 681, 831
2008
Later among the works it cites.
Ganguly R., Brotherton M. S., 2008, ApJ, 672, 102
2008
Later among the works it cites.
Gibson R. R., Brandt W. N., Schneider D. P., Gallagher S. C., 2008, ApJ, 675, 985
2008
Later among the works it cites.
Hamann F., Kaplan K. F., Hidalgo P. R., Prochaska J. X., Herbert-Fort S., 2008, MNRAS, 391, L39
2008
Later among the works it cites.
Knigge C., Scaringi S., Goad M. R., Cottis C. E., 2008, MNRAS, 386, 1426
2008
Later among the works it cites.
Maddox N., Hewett P. C., Warren S. J., Croom S. M., 2008, MNRAS, 386, 1605
2008
Later among the works it cites.
Gibson R. R., et al., 2009, ApJ, 692, 758
2009
Later among the works it cites.
Moe M., Arav N., Bautista M. A., Korista K. T., 2009, ApJ, 706, 525
2009
Later among the works it cites.
Montenegro-Montes F. M., Mack K., Benn C. R., Carballo R., González-Serrano J. I., Holt J., Jiménez-Luján F., 2009, Astronomische Nachrichten, 330, 157
2009
Later among the works it cites.
Prochaska J. X., Worseck G., O’Meara J. M., 2009, ApJ, 705, L113
2009
Later among the works it cites.
Risaliti G., Elvis M., 2009, preprint (arXiv:0911.0958)
Original
2009
Later among the works it cites.
Scaringi S., Cottis C. E., Knigge C., Goad M. R., 2009, MNRAS, 399, 2231
2009
Later among the works it cites.
Urrutia T., Becker R. H., White R. L., Glikman E., Lacy M., Hodge J., Gregg M. D., 2009, ApJ, 698, 1095
2009
Later among the works it cites.
Glikman E., Bogosavljević M., Djorgovski S. G., Stern D., Dey A., Jannuzi B. T., Mahabal A., 2010, ApJ, 710, 1498
2010
Closest in time.
Hewett P. C., Wild V., 2010, MNRAS, 405, 2302
2010
Closest in time.
Schneider D. P., et al., 2010, AJ, 139, 2360
2010
Closest in time.
Worseck G., Prochaska J. X., 2010, preprint (arXiv:1004.3347)
Original
2010
Closest in time.

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