2014A&A...566A..87J


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST06:35:30

2014A&A...566A..87J - Astronomy and Astrophysics, volume 566A, 87-87 (2014/6-1)

Constraining the vertical structure of the Milky Way rotation by microlensing in a finite-width global disk model.

JALOCHA J., SIKORA S., BRATEK L. and KUTSCHERA M.

Abstract (from CDS):

We model the vertical structure of mass distribution of the Milky Way galaxy in the framework of a finite-width global disk model. Assuming only the Galactic rotation curve, we tested the predictions of the model inside the solar orbit for two measurable processes that are unrelated to each other: the gravitational microlensing that allows one to fix the disk width-scale by the best fit to measurements, and the vertical gradient of rotation modeled in the quasi-circular orbits approximation. The former is sensitive to the gravitating mass in compact objects, the latter to all kinds of gravitating matter. The analysis points to a small width-scale of the considered disks and an at-most insignificant contribution of non-baryonic dark matter in the solar circle. The predicted high vertical gradient values in the rotation are consistent with the gradient measurements.

Abstract Copyright:

Journal keyword(s): gravitational lensing: micro - Galaxy: disk - Galaxy: kinematics and dynamics - Galaxy: structure

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5669 1
2 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11542 0

    Equat.    Gal    SGal    Ecl

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2020.07.13-06:35:30

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