GCIRS 16SW: A massive eclipsing binary in the Galactic center

被引：53
|
作者：
Martins, F.
Trippe, S.
Paumard, T.
Ott, T.
Genzel, R.
Rauw, G.
Eisenhauer, F.
Gillessen, S.
Maness, H.
Abuter, R.
机构：
[1] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany
[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[3] Univ Liege, Inst Astron & Geofis, B-4000 Cointe Ougree, Belgium
[4] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA
[5] European So Observ, D-85748 Garching, Germany
来源：
ASTROPHYSICAL JOURNAL | 2006年 / 649卷 / 02期
关键词：
binaries : eclipsing; Galaxy : center; stars : early-type;
D O I：
10.1086/508328
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report on the spectroscopic monitoring of GCIRS 16SW, an Ofpe/WN9 star and LBV candidate in the central parsec of the Galaxy. SINFONI observations show strong daily spectroscopic changes in the K band. Radial velocities are derived from the He I 2.112 mu m line complex and vary regularly with a period of 19.45 days, indicating that the star is most likely an eclipsing binary. Under various assumptions, we are able to derive a mass of similar to 50 M circle dot for each component.
引用
收藏
页码：L103 / L106
页数：4
相关论文
共 50 条
  • [31] Massive Stars and The Creation of our Galactic Center
    Figer, Donald F.
    ASTRONOMISCHE NACHRICHTEN, 2003, 324 : 255 - 261
  • [32] Isolated, massive supergiants near the galactic center
    Muno, MP
    Bower, GC
    Burgasser, AJ
    Baganoff, FK
    Morris, MR
    Brandt, WN
    ASTROPHYSICAL JOURNAL, 2006, 638 (01): : 183 - 190
  • [33] STARSPOT PARAMETERS OF THE W UMA TYPE ECLIPSING BINARY SW-LACERTAE
    LEE, WB
    SUNG, EC
    KANG, YW
    PROCEEDINGS ASTRONOMICAL SOCIETY OF AUSTRALIA, 1991, 9 (02): : 297 - 297
  • [34] Fundamental parameters of the massive eclipsing binary HM1 8
    Rodriguez, C. N.
    Ferrero, G. A.
    Benvenuto, O. G.
    Gamen, R.
    Morrell, N., I
    Barba, R. H.
    Arias, J.
    Massey, P.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2021, 508 (02) : 2179 - 2193
  • [35] THE CHARACTERISTICS OF SS 433 (V 1343 AQI) AS A MASSIVE ECLIPSING BINARY
    GONCHARSKIJ, AV
    METLITSKAYA, ZY
    CHEREPASHCHUK, AM
    ASTRONOMICHESKII ZHURNAL, 1984, 61 (01): : 124 - 135
  • [36] Simulating the Eclipsing Binary Yields of the Rubin Observatory in the Galactic Field and Star Clusters
    Geller, Aaron M.
    Polzin, Ava
    Bowen, Andrew
    Miller, Adam A.
    ASTROPHYSICAL JOURNAL, 2021, 919 (02):
  • [37] THE STABILITY OF A HYPOTHETICAL BINARY IN A GALACTIC-CENTER
    BARANOV, AS
    ASTRONOMICHESKII ZHURNAL, 1986, 63 (02): : 220 - 232
  • [38] Eclipsing Binary Populations across the Northern Galactic Plane from the KISOGP Survey
    Ren, Fangzhou
    de Grijs, Richard
    Zhang, Huawei
    Deng, Licai
    Chen, Xiaodian
    Matsunaga, Noriyuki
    Liu, Chao
    Sun, Weijia
    Maehara, Hiroyuki
    Ukita, Nobuharu
    Kobayashi, Naoto
    ASTRONOMICAL JOURNAL, 2021, 161 (04):
  • [39] Detached Red Giant Eclipsing Binary Twins: Rosetta Stones to the Galactic Bulge
    Nataf, D. M.
    Gould, A.
    Pinsonneault, M. N.
    ACTA ASTRONOMICA, 2012, 62 (01): : 33 - 65
  • [40] The Galactic Center:: The stellar cluster and the massive black hole
    Eckart, A
    Schödel, R
    Moultaka, J
    Straubmeier, C
    Viehmann, T
    Pfalzner, S
    Pott, JU
    EVOLUTION OF STARBURSTS, 2005, 783 : 17 - 25
12345