Detection of Solar-like oscillations in the G7 giant star ξ Hya

被引：150
|
作者：
Frandsen, S
Carrier, F
Aerts, C
Stello, D
Maas, T
Burnet, M
Bruntt, H
Teixeira, TC
de Medeiros, JR
Bouchy, F
Kjeldsen, H
Pijpers, F
Christensen-Dalsgaard, J
机构：
[1] Aarhus Univ, Inst Fys & Astron, DK-8000 Aarhus C, Denmark
[2] Observ Geneva, CH-1290 Sauverny, Switzerland
[3] Katholieke Univ Leuven, Inst Sterrenkunde, B-3001 Louvain, Belgium
[4] Univ Porto, Ctr Astrofis, Oporto, Portugal
[5] Univ Fed Rio Grande Norte, Dept Fis, BR-59072970 Natal, RN, Brazil
[6] Danmarks Grundforskningsfond, Teoret Astrofys Ctr, Aarhus, Denmark
来源：
ASTRONOMY & ASTROPHYSICS | 2002年 / 394卷 / 01期
关键词：
asteroseismology; solar type oscillations; giant stars;
D O I：
10.1051/0004-6361:20021281
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report the firm discovery of solar-like oscillations in a giant star. We monitored the star xi Hya (G7III) continuously during one month with the CORALIE spectrograph attached to the 1.2 m Swiss Euler telescope. The 433 high-precision radial-velocity measurements clearly reveal multiple oscillation frequencies in the range 50-130 muHz, corresponding to periods between 2.0 and 5.5 hours. The amplitudes of the strongest modes are slightly smaller than 2 m s(-1). Current model calculations are compatible with the detected modes.
引用
收藏
页码：L5 / L8
页数：4
相关论文
共 50 条
  • [21] Physics of solar-like oscillations
    JØrgen Christensen-Dalsgaard
    Solar Physics, 2004, 220 : 137 - 168
  • [22] Observing solar-like oscillations
    Bedding, Timothy R.
    Kjeldsen, Hans
    UNSOLVED PROBLEMS IN STELLAR PHYSICS: A CONFERENCE IN HONOUR OF DOUGLAS GOUGH, 2007, 948 : 117 - +
  • [23] The excitation of solar-like oscillations in a δ Sct star by efficient envelope convection
    V. Antoci
    G. Handler
    T. L. Campante
    A. O. Thygesen
    A. Moya
    T. Kallinger
    D. Stello
    A. Grigahcène
    H. Kjeldsen
    T. R. Bedding
    T. Lüftinger
    J. Christensen-Dalsgaard
    G. Catanzaro
    A. Frasca
    P. De Cat
    K. Uytterhoeven
    H. Bruntt
    G. Houdek
    D. W. Kurtz
    P. Lenz
    A. Kaiser
    J. Van Cleve
    C. Allen
    B. D. Clarke
    Nature, 2011, 477 : 570 - 573
  • [24] A search for red giant solar-like oscillations in all Kepler data
    Hon, Marc
    Stello, Dennis
    Garcia, Rafael A.
    Mathur, Savita
    Sharma, Sanjib
    Colman, Isabel L.
    Bugnet, Lisa
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2019, 485 (04) : 5616 - 5630
  • [25] Observations and interpretation of solar-like oscillations in red-giant stars
    Hekker, S.
    ASTRONOMISCHE NACHRICHTEN, 2010, 331 (9-10) : 1004 - 1009
  • [26] Solar-like oscillations in the G9.5 subgiant β Aquilae
    Corsaro, E.
    Grundahl, F.
    Leccia, S.
    Bonanno, A.
    Kjeldsen, H.
    Paterno, L.
    ASTRONOMY & ASTROPHYSICS, 2012, 537
  • [27] Solar-like oscillations in the K1 dwarf star α Cen B
    Carrier, F
    Bourban, G
    ASTRONOMY & ASTROPHYSICS, 2003, 406 (01) : L23 - L26
  • [28] Solar-like oscillations: An observational perspective
    Bedding, Timothy R.
    ASTEROSEISMOLOGY, 2013, 22 : 60 - 86
  • [29] Evidence for solar-like oscillations in β Hydri
    Bedding, TR
    Butler, RP
    Kjeldsen, H
    Baldry, IK
    O'Toole, SJ
    Tinney, CG
    Marcy, GW
    Kienzle, F
    Carrier, F
    ASTROPHYSICAL JOURNAL, 2001, 549 (01): : L105 - L108
  • [30] A method to detect p-mode oscillations in solar-like star signals
    Régulo, C
    Cortés, TR
    ASTRONOMY & ASTROPHYSICS, 2002, 396 (02) : 745 - 751
12345