Skip to main content Accesibility Help
×
×
Home

Westerlund 1 as a Template for Massive Star Evolution

  • Ignacio Negueruela (a1), J. Simon Clark (a2), Lucy J. Hadfield (a3) and Paul A. Crowther (a3)
Abstract

With a dynamical mass Mdyn ~ 1.3×105 M and a lower limit Mcl > 5 × 104 M from star counts, Westerlund 1 is the most massive young open cluster known in the Galaxy and thus the perfect laboratory to study massive star evolution. We have developed a comprehensive spectral classification scheme for supergiants based on features in the 6000–9000Å range, which allows us to identify > 30 very luminous supergiants in Westerlund 1 and ~ 100 other less evolved massive stars, which join the large population of Wolf-Rayet stars already known. Though detailed studies of these stars are still pending, preliminary rough estimates suggest that the stars we see are evolving to the red part of the HR diagram at approximately constant luminosity.

    • 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.

      Westerlund 1 as a Template for Massive Star Evolution
      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.

      Westerlund 1 as a Template for Massive Star Evolution
      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.

      Westerlund 1 as a Template for Massive Star Evolution
      Available formats
      ×
Copyright
References
Hide All
Bonanos, A. Z. 2007, AJ, 133, 2696
Brandner, W., Clark, J. S., Stolte, A., et al. 2008, A&A, 478, 137
Caron, G., Moffat, A. F. J., St-Louis, N., et al. 2003, AJ, 126, 1415
Clark, J. S., Negueruela, I., 2004, A&A, 413, L15
Clark, J. S., Negueruela, I., Crowther, P. A., & Goodwin, S. P. 2005, A&A, 434, 949
Clark, J. S., Muno, M. P., Negueruela, I., et al. 2008, A&A, 477, 147
Crowther, P. A., Hadfield, L. J., Clark, J. S., et al. 2006, MNRAS, 372, 1407
Ducati, J. R., Bevilacqua, C. M., Rembold, S. B., & Ribeiro, D. 2001, ApJ, 558, 309
Humphreys, R. M. & McElroy, D. B. 1984, ApJ, 284, 565
Kothes, R. & Dougherty, S. M. 2007, A&A, 468, 993
Martins, F., Schaerer, D., & Hillier, D. J. 2005, A&A, 436, 1049
Mengel, S. & Tacconi-Garman, L. E. 2008, in: Vesperini, , Giersz, M., & Sills, A., (eds.), Dynamical Evolution of Dense Stellar Systems (Cambridge: CUP), Proc IAU Symp 246 in press (arXiv:0711.1779)
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords

Metrics

Altmetric attention score

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