J. W. Sulentic,1 D. Dultzin-Hacyan,2 P. Marziani,3 C. Bongardo,3 V. Braito,3 M. Calvani,3 and R. Zamanov3,4
1 Department of Physics and Astronomy, University of Alabama, USA, (giacomo@merlot.astr.ua.edu)
2 Instituto de Astronomía, Universidad Nacional Autónoma de México, México, D. F., México (deborah@astroscu.unam.mx).
3 INAF, Osservatorio Astronomico di Padova, Italy. (bongardo@pd.astro.it; calvani@pd.astro.it; marziani@pd.astro.it; zamanov@pd.astro.it).
4 National Astronomical Observatory, Bulgaria
]]> Received 2005 February 22
RESUMEN
Intentamos caracterizar la geometría de los cuasares con líneas anchas de absorción (cuasares BAL por sus siglas en inglés) estudiando una muestra de bajo corrimiento al rojo, e identificamos 12 de ellos. Encontramos que la mayoría de estas fuentes son cuasares de población A (FWHM de Hβ ≤ 4000 km s-1, Sulentic et al. 2000a). Una posible correlación entre la velocidad terminal y la magnitud absoluta en V sugiere que la razón de la luminosidad bolométrica a la masa del hoyo negro es un factor determinante, con los valores máximos para los BAL clósicos. La emisión de C IV en los BAL clásicos muestra un perfil con corrimiento al azul, lo que apoya el escenario de un viento que fluye hacia afuera de un disco con un ángulo de apertura media menor de 50 grados. La observación de características secundarias de "mini-BAL" en los perfiles de emisión de C IV nos ha motivado a modelar los cuasares BAL con una componente relacionada al gas que produce las líneas anchas de emisión y que produce un flujo hacia afuera del disco de acreción y coaxial con esté.
ABSTRACT
We attempt to characterize the geometry of Broad Absorption Line (BAL) QSOs by studying a low redshift sample of 12 sources. We find that the majority of these sources are Population A quasars as defined in Sulentic et al. (2000a, broad Hβ FWHM ≤ 4000 km s-1). A possible correlation between terminal velocity and absolute V magnitude suggests that the bolometric luminosity to black hole mass ratio Lbol/MBH is a governing factor with classical BAL sources showing the highest values. CIVλ1549 emission in classical BAL sources shows a profile blueshift that supports a disk wind/outflow scenario with a half opening angle of ≲ 50°. Observation of "secondary" mini-BAL features in the CIVλ1549 emission profile motivates us to model BALs with an additional component that may be involved with the BLR outflow and co-axial with the accretion disk.
Key Words: GALAXIES: ACTIVE — QUASARS: ABSORPTION LINES — QUASARS: EMISSION LINES.
]]> DESCARGAR ARTÍCULO EN FORMATO PDF
ACKNOWLEDGEMENTS
We thank CONACyT, Mexico, for nancial support through Project 37506-E. An anonymous referee is thanked for providing important comments that helped to improve the presentation of this work.
REFERENCES
Angonin, M.-C., Vanderriest, C., Remy, M., & Surdej, J. 1990, A & A, 233, L5 [ Links ]
Arav, N., Li, Z., & Begelman, M. C. 1994, ApJ, 432, 62 [ Links ]
Bachev, R., Marziani, P., Sulentic, J. W., Dultzin-Hacyan, D., & Calvani, M. 2004, ApJ, 617, 171 [ Links ]
Barlow, T. A., Hamann, F., & Sargent, W. L. W. 1997, in ASP Conf. Ser. Vol. 128, Mass Ejection from Active Galactic Nuclei, eds. N. Arav, I. Shlosman, & R. J. Weymann (San Francisco: ASP), 13 [ Links ]
Barvainis, R., Maloney, P., Antonucci, R., & Alloin, D. 1997, ApJ, 484, 695 [ Links ]
Bechtold, J., Dobrzycki, A., Wilden, B., Morita, M., Scott, J., Dobrzycka, D., Tran, K., & Aldcroft, T. L. 2002, ApJS, 140, 143 [ Links ]
Becker, R. H., Gregg, M. D., Hook, I. M., McMahon, R. G., White, R. L., & Helfand, D. J. 1997, ApJ, 479, L93 [ Links ]
Becker, R. H., White, R. L., Gregg, M. D., Brotherton, M. S., Laurent-Muehleisen, S. A., & Arav, N. 2000, ApJ, 538, 72 [ Links ]
Blandford, R. D., & Znajek, R. L. 1977, MNRAS, 179, 433 [ Links ]
Boroson, T. A. 2002, ApJ, 565, 78 [ Links ]
Boroson, T. A., & Green, R. F. 1992, ApJS, 80, 190 [ Links ]
Boroson, T. A., & Meyers, K. A. 1992, ApJ, 397, 442 [ Links ]
Brandt, W. N., Laor, A., & Wills, B. J. 2000, ApJ, 528, 637 [ Links ]
Brotherton, M. S., van Breugel, W., Smith, R. J., Boyle, B. J., Shanks, T., Croom, S. M., Miller, L., & Becker, R. H. 1998, ApJ, 505, L7 [ Links ]
Canalizo, G. & Stockton, A. 2002, in ASP Conf. Ser. Vol. 255, Mass Outflow in Active Galactic Nuclei: New Perspectives, eds. D. M. Crenshaw, S. B. Krae-mer, & I. M. George (San Francisco: ASP), 195 [ Links ]
Crenshaw, D. M., Kraemer, S. B., Turner, T. J., et al. 2002, ApJ, 566, 187 [ Links ]
Crenshaw, D. M., Kraemer, S. B., & George, I. M. 2003, ARA & A, 41, 117 [ Links ]
de Vaucouleurs, G., de Vaucouleurs, A., Corwin, H. G., Buta, R. J., Paturel, G., & Fouque, P. 1991, Volume 1-3, XII, 2069 pp. 7 Figs. (Berlin, Heidelberg, New York: Springer-Verlag) [ Links ]
Dultzin-Hacyan, D., Marziani, P., & Sulentic, J. W. 2000, RevMexAA Ser., Conf., 9, Astrophysical Plasmas: Codes, Models, and Observations, eds. S. J. Arthur, N. Brickhouse, & J. Franco (Mexico City: Inst. Astron., UNAM), 308 [ Links ]
Elvis, M. 2000, ApJ, 545, 63 [ Links ]
Espey, B. R., Carswell, R. F., Bailey, J. A., Smith, M. G., & Ward, M. J. 1989, ApJ, 342, 666 [ Links ]
Falco, E. E., Kurtz, M. J., Geller, M. J., et al. 1999, PASP, 111, 438 [ Links ]
Forster, K., & Halpern, J. P. 1996, ApJ, 468, 565 [ Links ]
Gammie, C. F., Shapiro, S. L., & McKinney, J. C. 2004, ApJ, 602, 312 [ Links ]
Ganguly, R., Bond, N. A., Charlton, J. C., Eracleous, M., Brandt, W. N., & Churchill, C. W. 2001, ApJ, 549, 133 [ Links ]
Gaskell, C. M. 1982, ApJ, 263, 79 [ Links ]
Green, P. J., Aldcroft, T. L., Mathur, S., & Schartel, N. 1997, ApJ, 484, 135 [ Links ]
Hartig, G. F., & Baldwin, J. A. 1986, ApJ, 302, 64 [ Links ]
Hewett, P. C., & Foltz, C. B. 2003, AJ, 125, 1784 [ Links ]
Hill, G. J., Thompson, K. L., & Elston, R. 1993, ApJ, 414, L1 [ Links ]
Hughes, S. A., & Blandford, R. D. 2003, ApJ, 585, L101 [ Links ]
Jannuzi, B. T., Bahcall, J. N., Bergeron, J., et al. 1998, ApJS, 118, 1 [ Links ]
Kerber, F., & Rosa, M. 2000, ST-ECF Newsletter, 27, 4 [ Links ]
Korista, K. T., Voit, G. M., Morris, S. L., & Weymann, R. J. 1993, ApJS, 88, 357 [ Links ]
Landolt, A. U. 1992, AJ, 104, 340 [ Links ]
Lanzetta, K. M., Wolfe, A. M., & Turnshek, D. A. 1987, ApJ, 322, 739 [ Links ]
Laor, A. & Brandt, N. 2002, in ASP Conf. Ser. Vol. 255, Mass Outflow in Active Galactic Nuclei: New Perspectives, eds. D. M. Crenshaw, S. B. Kraemer, & I. M. George (San Francisco: ASP), 99 [ Links ]
Lipari, S., Colina, L., & Macchetto, F. 1994, ApJ, 427, 174 [ Links ]
Lipari, S., Dottori, H., Mediavilla, E., et al. 2004, in IAU Symp. 217, Recycling Intergalactic and Interstellar Matter, eds. P. A. Duc, J. Braine, & E. Brinks (San Francisco: ASP), 302 [ Links ]
Lobanov, A. P., & Roland, J. 2004, ArXiv Astrophysics e-prints, astro-ph/0411417 [ Links ]
Marziani, P., Sulentic, J. W., Dultzin-Hacyan, D., Calvani, M., & Moles, M. 1996, ApJS, 104, 37 (M96) [ Links ]
Marziani, P., Sulentic, J. W., Zamanov, R., Calvani, M., Dultzin-Hacyan, D., Bachev, R., & Zwitter, T. 2003a, ApJS, 145, 199 (M03) [ Links ]
Marziani, P., Sulentic, J. W., Zwitter, T., Dultzin-Hacyan, D., & Calvani, M. 2001, ApJ, 558, 553 [ Links ]
Marziani, P., Zamanov, R., Sulentic, J. W., & Calvani, M. 2003c, MNRAS, 345, 1133 [ Links ]
Marziani, P., Zamanov, R., Sulentic, J. W., Dultzin-Hacyan, D., Bongardo, C., & Calvani, M. 2003b, in ASP Conf. Ser. Vol. 290, Active Galactic Nuclei: From Central Engine to Host Galaxy, eds. S. Collin, F. Combes, & I. Shlosman (San Francisco: ASP), 229 [ Links ]
Mathur, S. 2000, MNRAS, 314, L17 [ Links ]
Mcintosh, D. H., Rieke, M. J., Rix, H.-W., Foltz, C. B., & Weymann, R. J. 1999, ApJ, 514, 40 [ Links ]
Najita, J., Dey, A., & Brotherton, M. 2000, AJ, 120, 2859 [ Links ]
Narayanan, D., Hamann, F., Barlow, T., Burbidge, E. M., Cohen, R. D., Junkkarinen, V., & Lyons, R. 2004, ApJ, 601, 715 [ Links ]
Pounds, K. A., Done, C., & Osborne, J. P. 1995, MNRAS, 277, L5 [ Links ]
Reichard, T. A., Richards, G. T., Hall, P., et al. 2003, AJ, 126, 2594 [ Links ]
Richards, G. T., Laurent-Muehleisen, S. A., Becker, R. H., & York, D. G. 2001, ApJ, 547, 635 [ Links ]
Richards, G. T., York, D. G., Yanny, B., Kollgaard, R. I., Laurent-Muehleisen, S. A., & vanden Berk, D. E. 1999, ApJ, 513, 576 [ Links ]
Sanders, D. B., Soifer, B. T., Elias, J. H., Madore, B. F., Matthews, K., Neugebauer, G., & Scoville, N. Z. 1988, ApJ, 325, 74 [ Links ]
Schmidt, M., & Green, R. F. 1983, ApJ, 269, 352 [ Links ]
Solomon, P. M., Downes, D., Radford, S. J. E., & Barret, J. W. 1997, ApJ, 478, 144 [ Links ]
Sulentic, J. W., Marziani, P., & Calvani, M. 1998, ApJL, 497, L65 [ Links ]
Sulentic, J. W., Marziani, P., & Dultzin-Hacyan, D. 2000a, ARA & A, 38, 521 [ Links ]
Sulentic, J. W., Marziani, P., Zamanov, R., Bachev, R., Calvani, M., & Dultzin-Hacyan, D. 2002, ApJ, 566, L71 [ Links ]
Sulentic, J. W., Marziani, P., Zwitter, T., Dultzin-Hacyan, D., & Calvani, M. 2000b, ApJ, 545, L15 [ Links ]
Sulentic, J. W., Repetto, P., Marziani, P., Stirpe, G. M., Dultzin-Hacyan, D., & Calvani, M. 2005, A & A, submitted [ Links ]
Sulentic, J. W., Stirpe, G. M., Marziani, P., Zamanov, R., Calvani, M., & Braito, V. 2004, A & A, 423, 121 [ Links ]
Sulentic, J. W., Zamfir, S., Marziani, P., Bachev, R., Calvani, M., & Dultzin-Hacyan, D. 2003, ApJ, 597, L17 [ Links ]
Turnshek, D. A. 1986, in IAU Symp. 119, Quasars, eds. G. Swarup, & V. G. Kapahi (Dordrecht: Reidel), 119, 317 [ Links ]
Turnshek, D. A., Grillmair, C. J., Foltz, C. B., & Weymann, R. J. 1988, ApJ, 325, 651 [ Links ]
Turnshek, D. A., Monier, E. M., Sirola, C. J., & Espey, B. R. 1997, ApJ, 476, 40 [ Links ]
Verner, E. M., Verner, D. A., Korista, K. T., Ferguson, J. W., & Ferland, G. J. 1999, ApJS, 120, 101 [ Links ]
Vestergaard, M. 2003, ApJ, 599, 116 [ Links ]
Vestergaard, M., & Wilkes, B. J. 2001, ApJS, 134, 1 [ Links ]
Wise, J. H., Eracleous, M., Charlton, J. C., & Ganguly, R. 2004, ApJ, 613, 129 [ Links ]
Weymann, R. J., Morris, S. L., Foltz, C. B., & Hewett, P. C. 1991, ApJ, 373, 23 [ Links ]
Wills, B. J., Brandt, W. N., & Laor, A. 1999, ApJ, 520, L91 [ Links ]
Yuan, M. J. & Wills, B. J. 2003, ApJ, 593, L11 [ Links ]
Zamanov, R. & Marziani, P. 2002, ApJ, 571, L77 [ Links ]
Zamanov, R., Marziani, P., Sulentic, J. W., Calvani, M., Dultzin-Hacyan, D., & Bachev, R. 2002, ApJ, 576, L9 [ Links ] ]]>