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

doi:10.1051/0004-6361/201219926

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

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

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Bibliographic description

punktacja MEiN [2012 A]: 35

title:	Gravitational microlensing as a test of a finite-width disk model of the Galaxy
author:	Sikora Szymon , Bratek Ł., Jałocha J., Kutschera Marek
journal title:	Astronomy & Astrophysics
volume:	546
date of publication :	2012
article ID:	A126
ISSN:	0004-6361
eISSN:	1432-0746
DOI:	10.1051/0004-6361/201219926
notes:	Reproduced with permission from Astronomy & Astrophysics, © ESO
language:	English
journal language:	English
abstract in English:	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$_{\circ }$ 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.
keywords in English:	gravitational lensing: micro, galaxy: bulge, galaxy: disk, galaxy: structure, dark matter
number of pulisher's sheets:	0,6
affiliation:	Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
type:	journal article
subtype:	academic paper

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