Skip to main content Accessibility help
×
Home

Mass Loss, Kinematics, & Evolution of Super Star Clusters in the Antennae

  • Andrea M. Gilbert (a1) and James R. Graham (a2)

Abstract

The youngest super star clusters (SSCs) in the merging Antennae Galaxies (NGC 4038/39) drive supersonic mass-loaded outflows from the HII regions in which they are embedded. High-resolution K-band Keck/NIRSPEC spectroscopy reveals broad, spatially extended Brγ emission in 16 targets. Simple wind models for the line profiles provide good fits and imply cluster mass-loss rates of up to 1.5 M/year and terminal velocities of up to 205 km s−1. The emission-line clusters (ELCs) that drive these outflows constitute at least 15% of the star formation rate in the Antennae, and their high star formation efficiencies imply that they will probably evolve into bound SSCs. The youngest ELC outflows, which are driven primarily by stellar winds, very efficiently entrain ambient matter. The cluster winds transfer or dissipate a large fraction of their energy and momentum in a hot or cool medium that does not emit Brγ. ELCs are the individual engines that power galactic-scale superwinds, viewed in their earliest evolutionary stage.

    • 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.

      Mass Loss, Kinematics, & Evolution of Super Star Clusters in the Antennae
      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.

      Mass Loss, Kinematics, & Evolution of Super Star Clusters in the Antennae
      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.

      Mass Loss, Kinematics, & Evolution of Super Star Clusters in the Antennae
      Available formats
      ×

Copyright

References

Hide All
Fuentes-Masip, O., et al. 2000, AJ, 120, 752
Gilbert, A. M. 2002, Ph.D. Thesis (University of California, Berkeley)
Johnson, K. E., Indebetouw, R., & Pisano, D. J. 2003, AJ, 126, 101
Kudritzki, R. & Puis, J. 2000, ARA&A, 38, 613
Leitherer, C., et al. 1999, ApJS, 123, 3
Martin, C. L., Kobulnicky, H. A., & Heckman, T. M. 2002, ApJ, 574, 663
Smith, M. G. & Weedman, D. W. 1970, ApJ, 161, 33
Turner, J. L., et al. 2003, Nature, 423, 621
Whitmore, B. C., & Zhang, Q. 2002, AJ, 124, 1418
Zezas, A., Fabbiano, G., Rots, A. H., & Murray, S. S. 2002, ApJ, 577, 710

Mass Loss, Kinematics, & Evolution of Super Star Clusters in the Antennae

  • Andrea M. Gilbert (a1) and James R. Graham (a2)

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