The double-lined spectroscopic binary haro 1-14c

被引：0

作者：

Prato, L ^{[1
]}

Simon, M ^{[1
]}

机构：

[1] Lowell Observ, Flagstaff, AZ 86001 USA

来源：

Astrometry in the Age of the Next Generation of Large Telescopes | 2005年 / 338卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report detection of the low-mass secondary in the spectroscopic binary Haro 1-14c in the Ophiuchus star forming region. The secondary/primary mass ratio is 0.310 +/- 0.014. With an estimated photometric primary mass of 1.2 M-circle dot, the secondary mass is similar to 0.4 M-circle dot and the projected semi-major axis is similar to 1.5 AU. The system is well-suited for astrometric mapping of its orbit with the current generation of ground-based IR interferometers. This could yield precision values of the system's component masses and distance.

引用

收藏

页码：284 / 287

页数：4

相关论文

共 10 条

[1]

Baraffe I, 1998, ASTRON ASTROPHYS, V337, P403

[2] The visual orbit and evolutionary state of 12 Bootis [J].

Boden, AF ;

Creech-Eakman, MJ ;

Queloz, D .

ASTROPHYSICAL JOURNAL, 2000, 536 (02) :880-890

[3] An assessment of dynamical mass constraints on pre-main-sequence evolutionary tracks [J].

Hillenbrand, LA ;

White, RJ .

ASTROPHYSICAL JOURNAL, 2004, 604 (02) :741-757

[4]

McLean I.S., 1998, SPIE, V3354, P566

[5] Performance and results with the NIRSPEC echelle spectrograph on the Keck II Telescope [J].

McLean, IS ;

Graham, JR ;

Becklin, EE ;

Figer, DF ;

Larkin, J ;

Levenson, N ;

Teplitz, HI .

OPTICAL AND IR TELESCOPE INSTRUMENTATION AND DETECTORS, PTS 1 AND 2, 2000, 4008 :1048-1055

[6] The smallest mass ratio young star spectroscopic binaries [J].

Prato, L ;

Simon, M ;

Mazeh, T ;

McLean, IS ;

Norman, D ;

Zucker, S .

ASTROPHYSICAL JOURNAL, 2002, 569 (02) :863-871

[7] Spectroscopic pre-main-sequence binaries. II. Haro 1-14c and Parenago 2494 [J].

Reipurth, B ;

Lindgren, H ;

Mayor, M ;

Mermilliod, JC ;

Cramer, N .

ASTRONOMICAL JOURNAL, 2002, 124 (05) :2813-2820

[8] The double-lined spectroscopic binary Haro 1-14c [J].

Simon, M ;

Prato, L .

ASTROPHYSICAL JOURNAL, 2004, 613 (01) :L69-L71

[9] Dynamical masses of T Tauri stars and calibration of pre-main-sequence evolution [J].

Simon, M ;

Dutrey, A ;

Guilloteau, S .

ASTROPHYSICAL JOURNAL, 2000, 545 (02) :1034-1043

[10] STUDY OF SPECTROSCOPIC BINARIES WITH TODCOR .1. A NEW 2-DIMENSIONAL CORRELATION ALGORITHM TO DERIVE THE RADIAL-VELOCITIES OF THE 2 COMPONENTS [J].

ZUCKER, S ;

MAZEH, T .

ASTROPHYSICAL JOURNAL, 1994, 420 (02) :806-810