Skip to main content Accessibility help
×
Home

Giant Planets and Variable Stars in 47 Tucanae - a Progress Report of a Comprehensive Ground-Based Search

  • David T. F. Weldrake (a1), Penny D. Sackett (a1) and Terry J. Bridges (a2)

Abstract

Here we present a short progress report of a comprehensive search for variability in the globular cluster 47 Tucanae. Using the MSSSO 40” telescope and a combined V+R filter, we are searching for variability across a 52×52' field centered on the cluster. The main aim is to search for transiting ‘Hot Jupiter’ planets in this cluster, the results of which are still being produced, but a natural side product is a deep catalogue of variable stars within the cluster field. The experiment samples the whole of the cluster (except the inner 5'), thus probing the uncrowded outer regions where the stellar densities are lower, increasing the prospects for the survivability of planetary systems. Half of the currently identified variable stars are new discoveries. We have data for 36,000 stars with masses similar to that of the Sun for the main transit search.

    • 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.

      Giant Planets and Variable Stars in 47 Tucanae - a Progress Report of a Comprehensive Ground-Based Search
      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.

      Giant Planets and Variable Stars in 47 Tucanae - a Progress Report of a Comprehensive Ground-Based Search
      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.

      Giant Planets and Variable Stars in 47 Tucanae - a Progress Report of a Comprehensive Ground-Based Search
      Available formats
      ×

Copyright

References

Hide All
Alard, C., & Lupton, R.H., 1998, ApJ, 503, 325.
Butler, R.P., Marcy, G.W., Fischer, D.A. et al., 2002, Ed., Penny, A. et al., IAU Symp 202, ASP Conf. Ser., in press.
Cumming, A., Marcy, G.W., Butler, R.P., 1999, ApJ, 526, 890.
Charbonneau, D., Brown, T.M., Latham, D.W., Mayor, M., 2000, ApJL, 529, L45.
Gilliland, R.L. et al, 2000, ApJL, 545 L47.
Kaluzny, J. et al, 1998, A&ASS, 128, 19.
Wozniak, P., 2000, Acta Astron, 50, 421.
Weldrake, D.T.F. et al. 2003, in preparation.

Giant Planets and Variable Stars in 47 Tucanae - a Progress Report of a Comprehensive Ground-Based Search

  • David T. F. Weldrake (a1), Penny D. Sackett (a1) and Terry J. Bridges (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