2012A&A...540A..48S


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.03CET01:56:43

2012A&A...540A..48S - Astronomy and Astrophysics, volume 540A, 48-48 (2012/4-1)

3-dimensional kinematics in low foreground extinction windows of the Galactic Bulge. Radial velocities for six bulge fields: procedures and results.

SOTO M., KUIJKEN K. and RICH R.M.

Abstract (from CDS):

The detailed structure of the Galactic bulge still remains uncertain. The strong difficulties of obtaining observations of stars in the Galactic bulge have hindered the acquisition of a kinematic representation for the inner kpc of the Milky Way. The observation of the 3-d kinematics in several low foreground extinction windows can solve this problem. We have developed a new technique, which combines precise stellar HST positions and proper motions with integral field spectroscopy, in order to obtain reliable 3-d stellar kinematics in crowded fields of the Galactic center. In addition, we present results using the new techniques for six fields in our project. A significant vertex deviation has been found in some of the fields in agreement with previous determinations. This result confirms the presence of a stellar bar in the Galactic bulge.

Abstract Copyright:

Journal keyword(s): Galaxy: bulge - Galaxy: kinematics and dynamics - Galaxy: structure

CDS comments: Fig.5 stars not identified.

Simbad objects: 9

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Number of rows : 9

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 * kap Ara * 17 26 00.0429536631 -50 38 00.623008847   6.236 5.193     G8III 74 0
2 GAL 000.0+00.0 gam 17 45 39.60213 -29 00 22.0000           ~ 12003 0
3 NAME Sgr I Window reg 17 56 -29.0           ~ 64 0
4 NAME Baade Window reg 18 03.5 -30 01           ~ 549 3
5 NGC 6558 GlC 18 10 18.38 -31 45 48.6   12.39 11.29     ~ 187 0
6 NAME Plaut's Window reg 18 18 08.32 -32 51 35.7           ~ 17 0
7 M 22 GlC 18 36 23.94 -23 54 17.1   7.16 6.17     ~ 1242 0
8 NAME Galactic Bulge reg ~ ~           ~ 3532 0
9 NAME Galactic Bar reg ~ ~           ~ 959 0

    Equat.    Gal    SGal    Ecl

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2021.03.03-01:56:43

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