SIMBAD references

2006MNRAS.372..163J - Mon. Not. R. Astron. Soc., 372, 163-173 (2006/October-2)

An activity catalogue of southern stars.

JENKINS J.S., JONES H.R.A., TINNEY C.G., BUTLER R.P., McCARTHY C., MARCY G.W., PINFIELD D.J., CARTER B.D. and PENNY A.J.

Abstract (from CDS):

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. Caii 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 logR'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.

Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS

Journal keyword(s): stars: activity - stars: low-mass, brown dwarfs - planetary systems - ultraviolet: stars

VizieR on-line data: <Available at CDS (J/MNRAS/372/163): table2.dat>

Simbad objects: 227

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2019.09.15-10:28:34

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