Reconstruction of stellar orbits close to Sagittarius A*: Possibilities for testing general relativity

被引：49

作者：

Fragile, PC ^{[1
]}

Mathews, GJ ^{[1
]}

机构：

[1] Univ Notre Dame, Ctr Astrophys, Notre Dame, IN 46556 USA

来源：

ASTROPHYSICAL JOURNAL | 2000年 / 542卷 / 01期

关键词：

black hole physics; celestial mechanics; stellar dynamics; Galaxy : center; Galaxy : kinematics and dynamics; gravitation; relativity;

D O I：

10.1086/309495

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have reconstructed possible orbits for a collection of stars located within 0."5 of Sgr A*. These orbits are constrained by observed stellar positions and angular proper motions. The construction of such orbits serves as a baseline from which to search for possible deviations due to the unseen mass distribution in the central 1000 AU of the Galaxy. We also discuss the likelihood that some of these stars may eventually exhibit detectable relativistic effects, allowing for interesting tests of general relativity around the 2.6 x 10(6) M. central object.

引用

页码：328 / 333

页数：6

共 24 条

[1] Near-infrared microlensing of stars by the supermassive black hole in the galactic center [J].

Alexander, T ;

Sternberg, A .

ASTROPHYSICAL JOURNAL, 1999, 520 (01) :137-148

[2] Probing the nature of compact dark object at the Galactic Center by gravitational lensing [J].

Capozziello, S ;

Iovane, G .

PHYSICS LETTERS A, 1999, 259 (3-4) :185-193

[3] Stellar proper motions in the central 0.1 pc of the Galaxy [J].

Eckart, A ;

Genzel, R .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1997, 284 (03) :576-598

[4]

Eckart A, 1999, ASTRON ASTROPHYS, V352, pL22

[5] HIGH ANGULAR RESOLUTION SPECTROSCOPIC AND POLARIMETRIC IMAGING OF THE GALACTIC-CENTER IN THE NEAR-INFRARED [J].

ECKART, A ;

GENZEL, R ;

HOFMANN, R ;

SAMS, BJ ;

TACCONIGARMAN, LE .

ASTROPHYSICAL JOURNAL, 1995, 445 (01) :L23-L26

[6] 2 micron spectroscopy within 0".13 of Sagittarius A [J].

Figer, DF ;

Becklin, EE ;

McLean, IS ;

Gilbert, AM ;

Graham, JR ;

Larkin, JE ;

Levenson, NA ;

Teplitz, HI ;

Wilcox, MK ;

Morris, M .

ASTROPHYSICAL JOURNAL, 2000, 533 (01) :L49-L52

[7]

Genzel R., 1997, Monthly Notices of the Royal Astronomical Society, V291, P219

[8] The dark mass concentration in the central parsec of the Milky Way [J].

Genzel, R ;

Thatte, N ;

Krabbe, A ;

Kroker, H ;

TacconiGarman, LE .

ASTROPHYSICAL JOURNAL, 1996, 472 (01) :153-+

[9]

GENZEL R, 2000, ASTROPH0001428

[10] High proper-motion stars in the vicinity of Sagittarius A* Evidence for a supermassive black hole at the center of our galaxy [J].

Ghez, AM ;

Klein, BL ;

Morris, M ;

Becklin, EE .

ASTROPHYSICAL JOURNAL, 1998, 509 (02) :678-686

← 1 2 3 →