2010ApJ...715..500M


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.18CET06:06:24

2010ApJ...715..500M - Astrophys. J., 715, 500-505 (2010/May-3)

Variability of surface flows on the Sun and the implications for exoplanet detection.

MAKAROV V.V.

Abstract (from CDS):

The published Mount Wilson Doppler-shift measurements of the solar velocity field taken in 1967-1982 are revisited with a more accurate model, which includes two terms representing the meridional flow and three terms corresponding to the convective limb shift. Integration of the recomputed data over the visible hemisphere reveals significant variability of the net radial velocity at characteristic time scales of 0.1-10 years, with a standard deviation of 1.4 m/s. This result is supported by independent published observations. The implications for exoplanet detection include reduced sensitivity of the Doppler method to Earth-like planets in the habitable zone, and an elevated probability of false detections at periods of a few to several years.

Abstract Copyright:

Journal keyword(s): planets and satellites: detection - stars: individual (55 Cnc, HD 40307) - Sun: activity - techniques: radial velocities

Simbad objects: 4

goto Full paper

goto View the reference in ADS

Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 Cl Melotte 25 OpC 04 26 54.00 +15 52 00.0           ~ 2586 0
2 HD 40307 PM* 05 54 04.2409953924 -60 01 24.491747849 8.814 8.097 7.147 6.597 6.119 K2.5V 193 1
3 * rho01 Cnc d Pl 08 52 35.81093 +28 19 50.9511           ~ 134 1
4 * rho01 Cnc PM* 08 52 35.8113282132 +28 19 50.956901366 7.45 6.82   5.4   K0IV-V 948 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2010ApJ...715..500M and select 'bookmark this link' or equivalent in the popup menu


2019.11.18-06:06:24

© Université de Strasbourg/CNRS

    • Contact