Jump to ContentJump to Main Navigation
Show Summary Details
More options …

Open Astronomy

formerly Baltic Astronomy

Editor-in-Chief: Barbuy, Beatriz


IMPACT FACTOR 2017 (Baltic Astronomy): 0.417
5-year IMPACT FACTOR (Baltic Astronomy): 0.486

CiteScore 2017: 0.16

SCImago Journal Rank (SJR) 2017: 0.131
Source Normalized Impact per Paper (SNIP) 2017: 0.109

ICV 2017: 121.03

Open Access
Online
ISSN
2543-6376
See all formats and pricing
More options …
Volume 20, Issue 3

Issues

High Redshift Quasars, Emission Lines and ‘Cloudy’

Gary J. Ferland
Published Online: 2017-03-23 | DOI: https://doi.org/10.1515/astro-2017-0307

Abstract

I describe some of the outstanding “big picture” questions in quasar research and how the development of the plasma simulation code Cloudy is being guided to answer them. QSO spectra are complex and challenge even the most sophisticated spectral codes. Particular emphasis is given to a central question - how do the properties of the central black hole and the accretion disk are manifested in the observed spectrum.

Keywords: galaxies; active; AGN; quasars quasars; emission lines

References

  • Aldenius M., Johansson S. 2007, A&A, 467, 753Google Scholar

  • Baldwin J., Ferland G., Korista K., Hamann F., LaCluyz´e A. 2004, ApJ, 615, 610Google Scholar

  • Bautista M. A., Rudy R. J., Venturini C. C. 2004, ApJ, 604, L129Google Scholar

  • Bentz M. C., Walsh J. L., Barth A. J. et al. 2009, ApJ, 705, 199Google Scholar

  • Boroson T. A. 2002, ApJ, 565, 78Google Scholar

  • Boroson T. A., Green R. F. 1992, ApJS, 80, 109Google Scholar

  • Bottorff M. C., Ferland G. J., Straley J. P. 2006, PASP, 118, 1176Google Scholar

  • Castor J. I., Abbott D. C., Klein R. I. 1975, ApJ, 195, 157Google Scholar

  • Castor J. L. 1974, MNRAS, 169, 279Google Scholar

  • Dong X.-B., Wang T.-G., Wang J.-G. et al. 2009, ApJ, 703, 1LGoogle Scholar

  • Ferland G. 2004, in AGN Physics with the Sloan Digital Sky Survey, ASPC, 311, 161Google Scholar

  • Ferland G. J., Hu C., Wang J.-M. et al. 2009, ApJ, 707, L82 (F09)Google Scholar

  • Ferland G. J., Korista K. T., Verner D. A. et al. 1998, PASP, 110, 761Google Scholar

  • Ferland G. J., Rees M. J. 1988, ApJ, 332, 141Google Scholar

  • Francis P. J., Hewett P. C., Foltz C. B., Chaffee F. H. 1992, ApJ, 373, 465Google Scholar

  • Gaskell C. M. 2009, New Astronomy Reviews, in press (arXiv:0908.0386v2)Google Scholar

  • Gurell J., Hartman H., Blackwell-Whitehead R. et al. 2009, A&A, 508, 525Google Scholar

  • Hamann F., Ferland G. J. 1999, ARA&A, 37, 487Google Scholar

  • Hamann F., Warner C., Dietrich M., Ferland G. 2007, in The Central Engine of AGN, ASPC, 373, 653Google Scholar

  • Hansen J. E., Kjeldsen H., Folkmann F. et al. 2007, J. Phys. B, 40, 293Google Scholar

  • Hu C., Wang J.-M., Ho L. C. et al. 2008a, ApJ, 683, L115Google Scholar

  • Hu C., Wang J.-M., Ho L. C. 2008b, ApJ, 687, 78Google Scholar

  • Kippenhahn R., Perry J. J., Roser H.-J. 1974, A&A, 34, 211Google Scholar

  • Leighly K. M., Halpern J. P., Jenkins E. B., Casebeer D. 2007, ApJS, 173, 1Google Scholar

  • Netzer H. 2009, ApJ, 695, 793Google Scholar

  • Osterbrock D., Ferland G. J. 2006, Astrophysics of Gaseous Nebulae and Active Galactic Nuclei, 2nd ed., University Science Books, Sausalito, CA (AGN3)Google Scholar

  • Ramsbottom C. A., Noble C., Burke V. et al. 2005, J. Phys. B, 38, 2999Google Scholar

  • Ramsbottom C. A., Hudson C. E., Norrington P. H., Scott M. P. 2007, A&A, 475, 765Google Scholar

  • Richards G., Hall P. B. 2004, AGN Physics with the Sloan Digital Sky Survey, eds., ASPC, 311Google Scholar

  • Silk J., Rees M. J. 1998, A&A, 331, L1Google Scholar

  • Sulentic J. W., Marziani P. 1999, ApJ, 518, L9Google Scholar

  • van Hoof P. A. M., Weingartner J. C., Martin P. G. et al. 2004, MNRAS, 350, 1330Google Scholar

  • Verner E. M., Verner D. A., Korista K. T. et al. 1999, ApJS, 120, 101Google Scholar

About the article

Received: 2011-08-08

Accepted: 2011-08-15

Published Online: 2017-03-23

Published in Print: 2011-09-01


Citation Information: Open Astronomy, Volume 20, Issue 3, Pages 379–385, ISSN (Online) 2543-6376, DOI: https://doi.org/10.1515/astro-2017-0307.

Export Citation

© 2017. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. BY-NC-ND 4.0

Comments (0)

Please log in or register to comment.
Log in