Gravitational microlensing as a test of a finite-width disk model of the Galaxy

被引：11

作者：

Sikora, S. ^{[1
]}

Bratek, L. ^{[2
]}

Jalocha, J. ^{[2
]}

Kutschera, M. ^{[1
]}

机构：

[1] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland

[2] Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland

来源：

ASTRONOMY & ASTROPHYSICS | 2012年 / 546卷

关键词：

gravitational lensing: micro; Galaxy: bulge; Galaxy: disk; Galaxy: structure; dark matter; GALACTIC BULGE; MILKY-WAY; ROTATION CURVE; OPTICAL DEPTH; SPIRAL GALAXIES; DARK-MATTER; MASS; STARS; LUMINOSITY; PLANE;

D O I：

10.1051/0004-6361/201219926

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The aim of this work is to show, in the framework of a simple finite-width disk model, that the amount of mass seen through gravitational microlensing measurements in the region 0 < R < R-o is consistent with the dynamical mass ascertained from Galaxy rotation after subtracting gas contribution. Since microlensing only detects compact objects, this result suggests that a non-baryonic mass component may be negligible in this region.

引用

页数：9

共 37 条

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[2]

[Anonymous], 2015, Table of Integrals, Series, and Products

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