The case for optically thick high-velocity broad-line region gas in active galactic nuclei

Astrophysical Journal

Volumn 669, Issue 1, 2007, Pages 126-134

  Snedden, Stephanie A ^a,b   Gaskell, C Martin ^a,c  

^a UNIVERSITY OF NEBRASKA LINCOLN   (United States)

^b APACHE POINT OBSERVATORY   (United States)

^c UNIVERSITY OF TEXAS AT AUSTIN   (United States)

Author keywords

Galaxies: active; Galaxies: Seyfert; Line: formation; Line: profiles; Quasars: emission lines; Quasars: general

Indexed keywords

EID: 39049147461     PISSN: 0004637X     EISSN: 15384357     Source Type: Journal    
DOI: 10.1086/521290     Document Type: Article

References (75)

1. Baldwin, J., Ferland, G., Korista, K., & Verner, D. 1995, ApJ, 455, L119
2. Bechtold, J., Shields, J., Rieke, M., Ji, P., Scott, J., Kuhn, O., Elvis, M., & Elston, R. 1997, in ASP Conf. Ser. 113, Emission Lines in Active Galaxies: New Methods and Techniques, ed. B. M. Peterson, F. Cheng, & A. S. Wilson (San Francisco: ASP), 122
3. Boroson, T. A., & Green, R. F. 1992, ApJS, 80, 109
4. Bottorff, M. C., & Ferland, G. J. 2001, ApJ, 549, 118
5. Bottorff, M. C., Korista, K. T., Shlosman, I., & Blandford, R. D. 1997, ApJ, 479, 200
6. Brotherton, M. S., Wills, B. J., Francis, P. J., & Steidel, C. C. 1994, ApJ, 430, 495
7. Burstein, D., & Heiles, C. E. 1982, AJ, 87, 1165
8. Chiang, J., & Murray, N. 1996, ApJ, 466, 704
9. Collier, S. J., et al. 1998, ApJ, 500, 162
10. Collin-Souffrin, S., & Lasota, J.-P. 1988, PASP, 100, 1041
11. Crenshaw, D. M. 1986, ApJS, 62, 821
12. Davidson, K. 1977, ApJ, 218, 20
13. De Zotti, G., & Gaskell, C. M. 1985, A&A, 147, 1
14. Espey, B. R., et al. 1994, ApJ, 434, 484
15. Ferland, G. J. 2002, HAZY, A Brief Introduction to CLOUDY C90.04 (Dept. Phys. Astron. Internal Rep.; Lexington: Univ. Kentucky)
16. Ferland, G. J., Korista, K. T., & Peterson, B. M. 1990, ApJ, 363, L21
17. Ferland, G. J., & Persson, S. E. 1989, ApJ, 347, 656
18. Francis, P. J., Hewett, P. C., Foltz, C. B., & Chafee, F. H. 1992, ApJ, 398, 476
19. Gaskell, C. M. 1982, ApJ, 263, 79
20. _. 1987, in Astrophysical Jets and Their Engines, ed. W. Kundt (Dordrecht: Reidel), 21
21. _. 1988, ApJ, 325, 114
22. _. 2000, NewA Rev., 44, 563
23. Gaskell, C. M., & Benker, A. J. 2007, ApJ, submitted
24. Gaskell, C. M., Goosmann, R. W., Antonucci, R. R. J., & Whysong, D. 2004, ApJ, 616, 147
25. Gaskell, C. M., & Mariupolskaya, V. Y. 2002, in ASP Conf. Ser. 255, Mass Outflow in Active Galactic Nuclei: New Perspectives, ed. D. M. Crenshaw, S. B. Kraemer, & I. M. George (San Francisco: ASP), 261
26. Gaskell, C. M., & Peterson, B. M. 1987, ApJS, 65, 1
27. Gaskell, C. M., & Snedden, S. A. 1999, in. ASP Conf. Ser. 175, Structure and Kinematics of Quasar Broad Line Regions, ed. C. M. Gaskell, W. N. Brandt, M. Dietrich, D. Dultzin-Hacyan, & M. Eracleous (San. Francisco: ASP), 157
28. Gaskell, C. M., & Sparke, L. S. 1986, ApJ, 305, 175
29. Gondhalekar, P. M. 1990, MNRAS, 243, 443
30. Grandi, S. A., & Phillips, M. M. 1979, ApJ, 232, 659
31. Horne, K., Welsh, W. F., & Peterson, B. M. 1991, ApJ, 367, L5
32. Kaspi, S., Smith, P. S., Netzer, H., Maoz, D., Jannuzi, B. T, & Giveon, U. 2000, ApJ, 533, 631
33. Koratkar, A. P., & Gaskell, C. M. 1991, ApJS, 75, 719
34. Korista, K. T., & Goad, M. R. 2004, ApJ, 606, 749
35. Korista, K. T., et al. 1995, ApJS, 97, 285
36. Kriss, G. A., Peterson, B. M. Crenshaw, D. M., & Zheng, W. 2000, ApJ, 535, 58
37. Krolik, J. H., Horne, K., Kallman, T. R., Malkan, M. A., Edelson, R. A., & Kriss, G. A. 1991, ApJ, 371, 541.
38. Marziani, P., Sulentic, J. W., Zamanov, R., & Calvani, M. 2003, Mem. Soc. Astron. Italiana, 74, 490
39. Mathews, W. G., & Wampler, E. J. 1985, PASP, 97, 966
40. Morris, S. L., & Ward, M. J. 1989, ApJ, 340, 713
41. Mushotzky, R. F., & Ferland, G. J. 1984, ApJ, 278, 558
42. Netzer, H. Brotherton, M. S., Wills, B. J., Han, M.-S., Wills, D., Baldwin, J. A., Ferland, G. J., & Browne, I. W. A. 1995, ApJ, 448, 27
43. O'Brien, P. T., Wilson, R., & Zheng, W. 1989, MNRAS, 240, 741
44. Osterbrock, D. E. 1977, ApJ, 215, 733
45. _. 1989, Astrophysics of Gaseous Nebulae and Active Galactic Nuclei (Mill Valley: University Science Books)
46. Osterbrock, D. E., & Shuder, J. M. 1982, ApJS, 49, 149
47. Perez, E., Penston, M. V., & Moles, M. 1989, MNRAS, 239, 75P
48. Peterson, B. M., Reichert, G. A., Korista, K. T., & Wagner, R. M. 1990, ApJ, 352, 68
49. Peterson, B. M., Wanders, I., Bertram, R., Hunley, J. F., Pogge, R. W., & Wagner, R. M. 1998, ApJ, 501, 82
50. Pogge, R. W., & Peterson, B. M. 1992, AJ, 103, 1084
51. Rodriguez-Ardila, A., Pastoriza, M. G., & Donzelli, C. J. 2000, ApJS, 126, 63
52. Schlegel, D. J., Finkbeiner, D. P., & Davis, M. 1998, ApJ, 500, 525
53. Shields, J. C., Ferland, G. J., & Peterson, B. M. 1995, ApJ, 441, 507
54. Shuder, J. M. 1982, ApJ, 259, 48
55. _. 1984, ApJ, 280, 491
56. Snedden, S. A., & Gaskell, C. M. 1997, in ASP Conf. Ser. 113, Emission Lines in Active Galaxies: New Methods and Techniques, ed. B. M. Peterson, F.-Z. Cheng, & A. S. Wilson (San Francisco: ASP), 195
57. _. 1999a, ApJ, 521, L91
58. _. 1999b, in ASP Conf. Ser. 175, Structure and Kinematics of Quasar Broad Line Regions, ed. C. M. Gaskell, W. N. Brandt, M. Dietrich, D. Dultzin-Hacyan, & M. Eracleous (San Francisco: ASP), 25
59. Sparke, L. S. 1993, ApJ, 404, 570
60. Stirpe, G. M. 1990, A&AS, 85, 1049
61. _. 1991, A&A, 247, 3
62. Stoner, R., Ptak, R., & Gregory, S. 1984, ApJ, 285, 69
63. Sulentic, J. W., Marziani, P., & Dultzin-Hacyan, D. 2000, ARA&A, 38, 521
64. Ulrich, M.-H., et al. 1984, MNRAS, 206, 221
65. Vanden Berk, D. E., et al. 2001, AJ, 122, 549
66. Wamsteker, W., & Colina, L. 1986, ApJ, 311, 617
67. Wandel, A., Peterson, B. M., & Malkan, M. A. 1999, ApJ, 526, 579
68. Wanders, I. 1997, in IAU Colloq. 159, Emission Lines in Active Galaxies: New Methods and Techniques, ed. B. M. Peterson, F.-Z. Cheng, & A. S. Wilson (ASP Conf. Ser. 113; San Francisco: ASP), 183
69. Wanders, I., & Peterson, B. M. 1996, ApJ, 466, 174
70. Wanders, I., et al. 1997, ApJS, 113, 69
71. Ward, M. J., & Morris, S. L. 1984, MNRAS, 207, 867
72. Wilkes, B. J. 1984, MNRAS, 207, 73
73. Wilkes, B. J., & Carswell, R. F. 1982, MNRAS, 201, 645
74. Wills, B. J., Netzer, H., Brotherton, M. S., Han, M-S., Wills, D., Baldwin, J. A., Ferland, G. J., & Browne, I. W. A. 1993, ApJ, 410, 534
75. Zheng, W. 1992, ApJ, 385, 127