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Spectroscopic Observations of Baryons in the Local Universe

Published online by Cambridge University Press:  23 September 2016

Kenneth R. Sembach
Kenneth R. Sembach*
Affiliation:
The Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218

Abstract

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There is increasing observational evidence that hot, highly-ionized interstellar and intergalactic gas plays a significant role in the evolution of galaxies in the local universe. Recent observations from several ultraviolet and X-ray observatories have been used to study the highly ionized high velocity cloud system in the vicinity of the Galaxy, the hot gaseous corona of the Galaxy, and highly ionized absorption-line systems at low redshift. The primary spectral diagnostics of this warm-hot interstellar/intergalactic medium are ultraviolet and X-ray absorption lines of O vi and O vii. The observational data fit well into the framework of current theories for the evolution of large-scale structure in the universe, which predict that a significant fraction of the baryonic material at low redshift is contained in highly ionized intergalactic gas. In this paper, I summarize some of the recent highlights of spectroscopic observations of the hot baryons in the local universe.

Type
Session V: Intergalactic Medium
Information
Symposium - International Astronomical Union , Volume 216: Maps of the Cosmos , 2005 , pp. 274 - 289
Copyright
Copyright © Astronomical Society of the Pacific 2005 

References

Allende Prieto, C., Lambert, D. L., & Asplund, M. 2001, ApJ, 556, L63 Google Scholar
Blitz, L., & Robishaw, T. 2000, ApJ, 541, 675 Google Scholar
Blitz, L., Spergel, D. N., Teuben, P., Hartmann, D., & Burton, W. B. 1999, ApJ, 514, 818 Google Scholar
Cagnoni, I. 2002, astro-ph/0212070 Google Scholar
Cen, R., & Ostriker, J. P. 1999, ApJ, 514, 1 Google Scholar
Collins, J. A., Shull, J. M., & Giroux, M. L. 2004, ApJ, 605, 216 Google Scholar
Davé, R., et al. 2001, ApJ, 552, 473 Google Scholar
de Boer, K. S., Braun, J. M., Vallenari, A., & Mebold, U. 1998, A&A, 329, L49 Google Scholar
Fang, T. T., Marshall, H. L., Lee, J. C., Davis, D. S., & Canizares, C. R. 2002, ApJ, 572, L127 Google Scholar
Fang, T., Sembach, K. R., & Canizares, C. R. 2003, ApJ, 586, L49 Google Scholar
Fox, A., Savage, B. D., Wakker, B. P., Richter, P., Tripp, T. M., & Sembach, K.R. 2004, ApJ, 602, 738 Google Scholar
Fukugita, M., Hogan, C., & Peebles, J. 1998, ApJ, 503, 518 Google Scholar
Futamoto, K., Mitsuda, K., Takei, Y., Fujimoto, R., & Yamasaki, N. 2004, ApJ, 605, 793 Google Scholar
Gardiner, L. T. 1999, in ASP Conf. Ser. Vol. 166, The Stromlo Workshop on High Velocity Clouds, ed. Gibson, B. K. & Putman, M.E. (San Francisco: ASP), 292 Google Scholar
Heckman, T. M., Norman, C. A., Strickland, D. K., & Sembach, K. R. 2002, ApJ, 577, 691 Google Scholar
Howk, J. C., Savage, B. D., Sembach, K. R., & Hoopes, C. G. 2002, ApJ, 572, 264 Google Scholar
Kravtsov, A. V., Klypin, A., & Hoffman, Y. 2002, ApJ, 571, 563 Google Scholar
Lockman, F. J., Murphy, E. M., Petty-Powell, S., & Urick, V. 2002, ApJS, 140, 331 Google Scholar
McKernan, B., Yaqoob, T., George, I. M., & Turner, T. J. 2003a, ApJ, 593, 142 Google Scholar
McKernan, B., Yaqoob, T., Mushotzky, R., George, I. M., & Turner, T. J. 2003b, ApJ, 598, L83 Google Scholar
Maloney, P. R. 2003, in The IGM/Galaxy Connection, ed. Rosenberg, J. L. & Putman, M. E. (Dordrecht: Kluwer), 299 Google Scholar
Mathur, S., Weinberg, D. H., & Chen, X. 2003, ApJ, 582, 82 Google Scholar
Moore, B., & Davis, M. 1994, MNRAS, 270, 209 Google Scholar
Morton, D. C. 1991, ApJS, 77, 119 Google Scholar
Nicastro, F., et al. 2002, ApJ, 573, 157 Google Scholar
Nicastro, F., et al. 2003, Nature, 421, 719 Google Scholar
Oegerle, W. R., et al. 2000, ApJ, 538, L23 Google Scholar
Penton, S. V., Shull, J. M., & Stocke, J. T. 2000, ApJ, 544, 150 Google Scholar
Quilis, V., & Moore, B. 2001, ApJ, 555, L95 Google Scholar
Rasmussen, A., Kahn, S. M., & Paerels, F. 2003, in The IGM/Galaxy Connection, ed. Rosenberg, J. L. & Putman, M. E. (Dordrecht: Kluwer), 109, astro-ph/0301183 Google Scholar
Richter, P., Savage, B. D., Tripp, T. M., & Sembach, K. R. 2004, ApJS, 153, 165 Google Scholar
Savage, B. D., et al. 2003, ApJS, 146, 125 Google Scholar
Savage, B. D., Sembach, K. R., Tripp, T. M., & Richter, P. 2002, ApJ, 564, 631 Google Scholar
Savage, B. D, Wakker, B. P., Sembach, K. R., Richter, P., & Meade, M. 2004, in IAU Symp. 217, Recycling Intergalactic and Interstellar Matter, ed. Duc, P. -A., Braine, J. & Brinks, E. (San Francisco: ASP), 147 Google Scholar
Sembach, K. R., et al. 2000, ApJ, 538, L31 Google Scholar
Sembach, K. R., et al. 2003, ApJS, 146, 165 Google Scholar
Sembach, K. R., Howk, J. C., Savage, B. D., Shull, J. M., & Oegerle, W. R. 2001, ApJ, 561, 573 CrossRefGoogle Scholar
Sembach, K. R., Savage, B. D., Lu, L., & Murphy, E. M. 1999, ApJ, 515, 108 Google Scholar
Sembach, K. R., Tripp, T. M., & Savage, B. D. 2004, ApJS, in press, astro-ph/0407549 Google Scholar
Shull, J. M., Tumlinson, J., & Giroux, M. L. 2003, ApJ, 594, L107 Google Scholar
Snowden, S. L., et al. 1997, ApJ, 485, 125 Google Scholar
Spergel, D., et al. 2003, ApJS, 148, 175 Google Scholar
Stanimirovic, S., Dickey, J. M., Krco, M., & Brooks, A. M. 2002, ApJ, 576, 773 Google Scholar
Sutherland, R. S., & Dopita, M. A. 1993, ApJS, 88, 253 Google Scholar
Tripp, T. M. 2002, in ASP Conf. Ser. Vol. 254, Extragalactic Gas at Low Redshift, ed. Mulchaey, J. S. & Stocke, J. T., (Provo: ASP), 323 Google Scholar
Tripp, T. M., Giroux, M. L., Stocke, J. T., Tumlinson, J., & Oegerle, W. R. 2001, ApJ, 563, 724 Google Scholar
Tripp, T. M., & Savage, B. D. 2000, ApJ, 542, 42 Google Scholar
Tripp, T. M., Savage, B. D., & Jenkins, E. B. 2000, ApJ, 534, L1 CrossRefGoogle Scholar
Verner, D. A, Barthel, P., & Tytler, D. 1994, ApJ, 430, 186 Google Scholar
Verner, D. A., Verner, E. M., & Ferland, G. J. 1996, Atomic Data Nucl. Data Tables, 64, 1 Google Scholar
Wakker, B. P. 2004, in IAU Symp. 217, Recycling Intergalactic and Interstellar Matter, ed. Duc, P. -A., Braine, J. & Brinks, E. (San Francisco: ASP), 2 Google Scholar
Wakker, B.P., et al. 2003, ApJS, 146, 1 Google Scholar