Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-27T12:14:03.205Z Has data issue: false hasContentIssue false
  • English
  • Français

The Pennsylvania-Torun Search for Planets: Bisector Measurements of HD 102272

Published online by Cambridge University Press:  19 April 2010

K. Goździewski ,
A. Niedzielski ,
J. Schneider ,
G. Nowak ,
A. Niedzielski  and
A. Wolszczan
G. Nowak
Affiliation:
Toruń Centre for Astronomy, Nicolaus Copernicus University, ul. Gagarina 11, 87-100 Toruń, Poland
A. Niedzielski
Affiliation:
Toruń Centre for Astronomy, Nicolaus Copernicus University, ul. Gagarina 11, 87-100 Toruń, Poland Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802, USA
A. Wolszczan
Affiliation:
Toruń Centre for Astronomy, Nicolaus Copernicus University, ul. Gagarina 11, 87-100 Toruń, Poland Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802, USA
Get access

Abstract

Searches for planets around massive stars are essential for developing general understanding of planet formation and evolution of planetary systems. The main objective of the PSU-TCfA Search for Planets around Evolved Stars is detection of planets around G-K subgiants and giants through highly accurate radial velocity (RV) measurements using an iodine absorption cell on the HET HRS spectrograph. However, the long-period radial velocity variations of red giants may also have other causes than planets (e.g. non-radial pulsations or rotational modulation in the presence of starspots). In this work, for the second red giant with planets found in our survey, HD 102272, we present bisector analysis of cross-correlation functions (CCF) constructed from the spectra used for radial velocity determination but cleaned from the iodine lines.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 42: Extrasolar Planets in Multi-Body Systems: Theory and Observations , 2010 , pp. 165 - 168
Copyright
© EAS, EDP Sciences, 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Hill, G., 1982, Publ. Dom. Astrophys. Obs. Victor., 16, 67
Martínez Fiorenzano, A.F., Gratton, R.G., et al., 2005, A&A, 442, 775
Niedzielski, A., Konacki, M., Wolszczan, A., et al., 2007, ApJ, 669, 1354 CrossRef
Niedzielski, A., Goździewski, K., Wolszczan, A., et al., 2009, ApJ, 693, 276 CrossRef
Ramsey, L.W., et al., 1998, Proc. SPIE, 3352, 34 CrossRef
Shetrone, M., et al., 2007, PASP, 119, 556 CrossRef
Tull, R.G., 1998, Proc. SPIE, 3355, 387 CrossRef