Skip to main content Accessibility help
×
Home

Searching for Planets of Brown Dwarfs 1

  • Eike Guenther (a1) and Guenther Wuchterl (a2)

Abstract

Up to now, most planet search projects have concentrated on G and K stars. In order to considerably widen the view, we have stated a survey for planets of old, nearby brown dwarfs and very low-mass stars. Using UVES, we have observed 26 brown dwarfs and very low-mass stars. As it turned out these objects are very inactive and thus highly suitable for such a project. For 19 objects, we can exclude a planet with the mass of 3 M J , and a period of 100 days or less with a probability of more than 60%. For these objects, we can also exclude Pegasi-planets with a high probability. For another 4 objects, we can exclude at least a brown dwarf companion. One object is a double line spectroscopic binary, and one object shows significant radial-velocity variations that can not be caused by a normal stellar-spot. This object either has a planetary-mass companion, or the variations are caused by surface structures that are quite different from normal star-spots.

    • 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.

      Searching for Planets of Brown Dwarfs 1
      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.

      Searching for Planets of Brown Dwarfs 1
      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.

      Searching for Planets of Brown Dwarfs 1
      Available formats
      ×

Copyright

References

Hide All
Apai, D. et al. 2002a, this conference
Apai, D., Pascucci, I., Henning, Th., Sterzik, M.F., Klein, R., Semenov, D., Guenther, E., Stecklum, B. 2002b, A&A, in press
Basri, G. Marcy, G.W. 1995, AJ, 109, 762
Berger, E., Ball, S., Becker, K.M., Clarke, M., Frail, D.A., Fukuda, T.A., Hoffman, I.M., Mellon, R., Momjian, E., Murphy, N.W., Teng, S.H., Woodruff, T., Zauderer, B.A., Zavala, R.T. 2001, Nature, 410, 338
Comerón, F., Neuhäuser, R., Kaas, A. A. 2000, A&A, 359, 269
Hayashi, 1981 in IAU Symp. 93, Fundamental problems in the theory of stellar evolution, (Dordrecht, D. Reidel), 113
Chabrier, G., Brassard, P., Fontaine, G., Saumon, D. 2000, ApJ,543, 216
Martín, E.L., Ardila, D.R. 2001, AJ, 121, 2758
Muench, A.A., Alves, J., Lada, C.J., Lada, E.A. 2001, ApJ, 558, L51
Natta, A., Testi, L., 2001, A&A, 376, L22
Paulson, D.B., Saar, S.H., Cochran, W.D., Hatzes, A.P. 2002, AJ, 124, 572
Persi, P., Marenzi, A. R., Olofsson, G. et al. 2000, A&A, 357, 219
Reid, I. N., Hawley, S.L., Gizis, J.E. 1995, AJ, 110, 1838
Rutledge, R. E., Basri, G., Martín, E. L., Bildsten, L. 2000, ApJ, 538, L141
Saar, S.H., Donahue, R.A. 1997, ApJ, 485, 319
Sasselov, D.D., Lecar, M. 2000, ApJ, 528, 995
Schmitt, J.H.M.M., Liefke, C. 2002, A&A, 382, L9
Stauffer, J.R., Balachandran, S.C., Krishnamurthi, A., Pinsonneault, M., Terndrup, D.M., Stern, R.A. 1997, ApJ, 475, 604
Mokler, F., Stelzer, B. 2002, A&A, 391, 1025
Testi, L., Natta, A., Oliva, E., D'Antona, F., Comerón, F., Baffa, C., Comoretto, G., Gennari, , 2002, ApJ, 571, L155
Tinney, C.G., Reid, I.N. 1998, MNRAS, 301, 1031
Tinney, C.G., Tolley, A.J. 1999, MNRAS, 304, 119

Related content

Powered by UNSILO

Searching for Planets of Brown Dwarfs 1

  • Eike Guenther (a1) and Guenther Wuchterl (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.