Skip to main content Accessibility help
×
Home

EVN and MERLIN observations of an OH maser ring and a starburst continuum in III Zw 35

  • Ylva M. Pihlström (a1), John E. Conway (a1) and Roy S. Booth (a1)

Abstract

We report on high-sensitivity EVN and MERLIN observations of the OH maser emission and continuum in the luminous infrared galaxy III Zw 35. Earlier VLBI observations have shown two compact maser clumps containing 40%–50% of the single-dish flux. In addition to these compact masers, we detect more diffuse maser emission which lies in a clear ring structure of radius r ∼ 22 pc. The ring appears inclined to the line of sight and the compact masers occur at the tangent points. This structure suggests that the compact and diffuse masers appear different because of geometrical effects and not pumping or other physical conditions. Our observations reveal a velocity gradient along the western side of the disc which indicates rotation. The 18 cm continuum radiation is resolved into a few unresolved sources, plus more diffuse emission and is broadly consistent with emission originating in a starburst.

    • 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.

      EVN and MERLIN observations of an OH maser ring and a starburst continuum in III Zw 35
      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.

      EVN and MERLIN observations of an OH maser ring and a starburst continuum in III Zw 35
      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.

      EVN and MERLIN observations of an OH maser ring and a starburst continuum in III Zw 35
      Available formats
      ×

Copyright

References

Hide All
Carilli, C.L., & Taylor, G.B. 2000, ApJ, 533, L13
Diamond, P.J., Lonsdale, C.J., Lonsdale, C.J., & Smith, H.E., 1999, ApJ, 511, 178
Meurer, G.R., Heckman, T.M., Leitherer, C., Kinney, A., Robert, C., & Garnett, D.R. 1995, AJ, 110, 2665
Montgomery, A.S., & Cohen, R.J. 1992, MNRAS, 254, 23
Sanders, D.B., Scoville, N.Z., & Soifer, B.T. 1991, ApJ, 370, 158
Smith, H.E., Lonsdale, C.J., & Lonsdale, C.J. 1998, ApJ, 492, 137
Staveley-Smith, L., Cohen, R.J., Chapman, J.M., Pointon, L., & Unger, S.W. 1987, MNRAS, 226, 689
Trotter, A.S., Moran, J.M., Greenhill, L.J., Zheng, X., & Gwinn, C.R. 1997, ApJ, 485, L79
Weiler, K.W., Panagia, N., & Sramek, R. 1990, ApJ, 364, 611

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