Skip to main content Accessibility help
×
Home

The Early Stages of Extragalactic Star Cluster Evolution: New Results From Gemini

  • Kelsey E. Johnson (a1), William D. Vacca (a2), Peter S. Conti (a1) and Henry A. Kobulnicky (a3)

Abstract

As part of an ongoing program to better understand the early stages of massive star cluster evolution and the physical conditions required for their formation, we have obtained 10 μm (N-band) images with Gemini North of the nuclear region of the starburst galaxy He 2-10. Five massive star clusters still enshrouded in their natal cocoons with no optical counterparts were previously discovered by Kobulnicky & Johnson (1999) as optically thick thermal radio sources. Three of these five radio sources have strong 10 μm detections in only 10 minutes of integration time with Gemini. The blackbody temperatures of the dust cocoons are estimated to range from ∼ 40 — 150 K at their outer and inner edges, and the mass of these dust shells is ∼ 107 M. The ages of the embedded stellar clusters must be < 106 years. The bolometric luminosities of the exciting clusters can be constrained to ∼ 108–9 L, and the implied masses are > 106 M. These three embedded clusters are responsible for at least 60% of the IRAS flux of the entire galaxy He 2-10.

    • 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.

      The Early Stages of Extragalactic Star Cluster Evolution: New Results From Gemini
      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.

      The Early Stages of Extragalactic Star Cluster Evolution: New Results From Gemini
      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.

      The Early Stages of Extragalactic Star Cluster Evolution: New Results From Gemini
      Available formats
      ×

Copyright

References

Hide All
Condon, J.J. Huang, Z.-P., Yin, Q.F., & Thuan, T.X. 1991, ApJ, 378 65
Churchwell, E. Wolfire, M.G., & Wood, D.O.S. 1990, ApJ, 354, 247
Kobulnicky, H.A. & Johnson, K.E. 1999, ApJ, 527, 154
Sanders, D.B. & Mirabel, I.F. 1996, ARA&A, 34, 749
Tarchi, A., et al., 2000, A&A, 358, 95
Turner, J.L., Beck, S.C., & Ho, P.T.P. 1998, ApJ, 532, L109
Wood, D.O. & Churchwell, E. 1989, ApJS, 69, 831

The Early Stages of Extragalactic Star Cluster Evolution: New Results From Gemini

  • Kelsey E. Johnson (a1), William D. Vacca (a2), Peter S. Conti (a1) and Henry A. Kobulnicky (a3)

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