Skip to main content Accessibility help
×
Home

Neutral Gas Outside the Disks of Local Group Galaxies

  • Felix J. Lockman (a1)

Abstract

Of the three kinds of neutral gas found outside the stellar disks of Local Group galaxies, only the products of interaction, like the Magellanic Stream, have a clearly understandable origin. Both the high-velocity clouds and the faint H I between M31 and M33 remain a mystery. New observations of the region between M31 and M33 with the Green Bank Telescope show that the H I there resides in clouds with a size and mass similar to that of dwarf galaxies, but without stars. These clouds might be products of an interaction, or condensations in the hot circumgalactic medium of M31, but both these models have difficulties. The prevalence of clouds like this in the Local Group remains to be determined.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Neutral Gas Outside the Disks of Local Group Galaxies
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      Neutral Gas Outside the Disks of Local Group Galaxies
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      Neutral Gas Outside the Disks of Local Group Galaxies
      Available formats
      ×

Copyright

References

Hide All
Adams, E. A. K., Giovanelli, R., & Haynes, M. P. 2013, ApJ, 768, 77
Bekki, K. 2008, MNRAS, 390, L24
Besla, G. 2015, arXiv:1511.03346
Braun, R. & Thilker, D. A. 2004, A&A, 417, 421
Fox, A. J., Wakker, B. P., Barger, K. A., et al. 2014, ApJ, 787, 147
Heald, G., Józsa, G., Serra, P., et al. 2011, A&A, 526, A118
Lehner, N. & Howk, J. C. 2011, Science, 334, 955
Lehner, N., Howk, J. C., & Wakker, B. P. 2015, ApJ, 804, 79
Lewis, G. F., Braun, R., McConnachie, A. W., et al. 2013, ApJ, 763, 4
Lockman, F. J., Murphy, E. M., Petty-Powell, S., & Urick, V. J. 2002, ApJ, 140, 331
Lockman, F. J., Benjamin, R. A., Heroux, A. J., & Langston, G. I. 2008, ApJ, 679, L21
Mathewson, D. S., Cleary, M. N., & Murray, J. D. 1974, ApJ, 190, 291
Muller, C. A., Oort, J. H., & Raimond, E. 1963, Acad. Sci. Paris Comptes Rendus, 257, 1661
Nidever, D. L., Majewski, S. R., Butler, Burton W., & Nigra, L. 2010, ApJ, 723, 1618
Nidever, D. L., Ashley, T., Slater, C. T., et al. 2013, ApJ, 779, L15
Nielsen, N. M., Churchill, C. W., & Kacprzak, G. G. 2013, ApJ, 776, 115
Oort, J. H. 1966, Bulletin of the Astronomical Institutes of the Netherlands, 18, 421
Putman, M. E., Staveley-Smith, L., Freeman, K. C., et al. 2003, ApJ, 586, 170
Putman, M. E., Peek, J. E. G., & Joung, M. R. 2012, Ann. Rev. Astr. Ap., 50, 491
Shaya, E. J. & Tully, R. B. 2013, MNRAS, 436, 2096
Shull, J. M., Jones, J. R., Danforth, C. W., & Collins, J. A. 2009, ApJ, 699, 754
Thilker, D. A., Braun, R., Walterbos, R. A. M., et al. 2004, ApJ, 601, L39
Wakker, B. P. & van Woerden, H. 1997, ARA&A, 35, 217
Walter, F., Brinks, E., de Blok, W. J. G., et al. 2008, AJ 136 25632647
Wannier, P. & Wrixon, G. T. 1972, ApJ, 173, L119
Westmeier, T., Brüns, C., & Kerp, J. 2008, MNRAS, 390, 1691
Wolfe, S. A., Pisano, D. J., Lockman, F. J., et al. 2013, Nature, 497, 224
Wolfe, S. A., Lockman, F. J., & Pisano, D. J. 2016, ApJ, 816, 81
MathJax
MathJax is a JavaScript display engine for mathematics. For more information see http://www.mathjax.org.

Keywords

Neutral Gas Outside the Disks of Local Group Galaxies

  • Felix J. Lockman (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed