An activity catalogue of southern stars
Article
Article Title | An activity catalogue of southern stars |
---|---|
ERA Journal ID | 1074 |
Article Category | Article |
Authors | Jenkins, J. S. (Author), Jones, H. R. A. (Author), Tinney, C. G. (Author), Butler, R. P. (Author), McCarthy, C. (Author), Marcy, G. W. (Author), Pinfield, D. J. (Author), Carter, B. D. (Author) and Penny, A. J. (Author) |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 372 (1), pp. 163-173 |
Number of Pages | 12 |
Year | 2006 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1111/j.1365-2966.2006.10811.x |
Web Address (URL) | https://academic.oup.com/mnras/article/372/1/163/973197 |
Abstract | We have acquired high-resolution echelle spectra of 225 F6-M5 type stars in the Southern hemisphere. The stars are targets or candidates to be targets for the Anglo-Australian Planet Search. Ca ii H& K line cores were used to derive activity indices for all of these objects. The indices were converted to the Mt. Wilson system of measurements and log R'HK values determined. A number of these stars had no previously derived activity indices. In addition, we have also included the stars from Tinney et al. using our Mt. Wilson calibration. The radial-velocity instability (also known as jitter) level was determined for all 21 planet-host stars in our data set. We find the jitter to be at a level considerably below the radial-velocity signatures in all but one of these systems. 19 stars from our sample were found to be active (logR'HK > −4.5) and thus have high levels of jitter. Radial-velocity analysis for planetary companions to these stars should proceed with caution. |
Keywords | stars; low-mass; brown dwarfs; planetary systems; ultraviolet |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
519999. Other physical sciences not elsewhere classified | |
Public Notes | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2006 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Byline Affiliations | University of Hertfordshire, United Kingdom |
Anglo-Australian Observatory, Australia | |
Carnegie Institution of Washington, United States | |
San Francisco State University, United States | |
University of California, United States | |
Department of Biological and Physical Sciences | |
Rutherford Appleton Laboratory, United Kingdom |
https://research.usq.edu.au/item/9y0qv/an-activity-catalogue-of-southern-stars
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