The Radial Velocity Effects of Stellar Surface Phenomena

被引：0

作者：

Saar, Steven H. ^{[1
]}

机构：

[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

来源：

COOL STARS, STELLAR SYSTEMS AND THE SUN | 2009年 / 1094卷

关键词：

stars: planetary systems; stars: activity; stars: spots; convection; techniques: radial velocities; CHROMOSPHERIC EVAPORATION; MAGNETIC ACTIVITY; ACTIVE REGIONS; PLANET-SEARCH; NO PLANET; VARIABILITY; STARS; FLARE; EXOPLANETS; HYADES;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Radial velocity (RV) studies have been a very successful tool for finding and characterizing extrasolar planets. As RV precision increases, and planet searches press to younger, hotter, and evolved stars, however, this method will snore and more bump against limitations set by the host stars themselves. Cool stellar surfaces present a range of troublesome phenomena such as spots, plage, and convective cells. which can confuse RV measurements. I review how these phenomena affect precision RV, scaling laws and timescales which characterize their properties, and some methods to mitigate, circumvent, or correct for their effects.

引用

页码：152 / 161

页数：10

共 36 条

[1]

Asplund M, 2000, ASTRON ASTROPHYS, V359, P729

[2] Extreme-ultraviolet flare activity in late-type stars [J].

Audard, M ;

Güdel, M ;

Drake, JJ ;

Kashyap, VL .

ASTROPHYSICAL JOURNAL, 2000, 541 (01) :396-409

[3]

CAVALLINI F, 1985, ASTRON ASTROPHYS, V143, P116

[4] No planet around HD 219542 B [J].

Desidera, S ;

Gratton, RG ;

Endl, M ;

Claudi, RU ;

Cosentino, R ;

Barbieri, M ;

Bonanno, G ;

Lucatello, S ;

Fiorenzano, AFM ;

Marzari, F ;

Scuderi, S .

ASTRONOMY & ASTROPHYSICS, 2004, 420 (03) :L27-L30

[5] Search for exoplanets with the radial-velocity technique: quantitative diagnostics of stellar activity [J].

Desort, M. ;

Lagrange, A.-M. ;

Galland, F. ;

Udry, S. ;

Mayor, M. .

ASTRONOMY & ASTROPHYSICS, 2007, 473 (03) :983-993

[6] Stellar active region evolution .1. Estimated lifetimes of chromospheric active regions and active region complexes [J].

Donahue, RA ;

Dobson, AK ;

Baliunas, SL .

SOLAR PHYSICS, 1997, 171 (01) :191-209

[7]

DONAHUE RA, 1996, AP J, V466

[8] Line bisectors and radial velocity jitter from SARG spectra [J].

Fiorenzano, AFM ;

Gratton, RG ;

Desidera, S ;

Cosentino, R ;

Endl, M .

ASTRONOMY & ASTROPHYSICS, 2005, 442 (02) :775-784

[9]

GRAY DF, 1988, LECT SPECTRAL LINE A

[10] Confirmation of the planet hypothesis for the long-period radial velocity variations of β Geminorum [J].

Hatzes, A. P. ;

Cochran, W. D. ;

Endl, M. ;

Guenther, E. W. ;

Saar, S. H. ;

Walker, G. A. H. ;

Yang, S. ;

Hartmann, M. ;

Esposito, M. ;

Paulson, D. B. ;

Doellinger, M. P. .

ASTRONOMY & ASTROPHYSICS, 2006, 457 (01) :335-U230

← 1 2 3 4 →