2016A&A...587A.140H

Query : 2016A&A...587A.140H

2016A&A...587A.140H - Astronomy and Astrophysics, volume 587A140-140 (2016/3-1)

Orbits of maser stars in the rotating Galactic bar.

HABING H.J.

Abstract (from CDS):

Maser stars have been found with radial velocities up to +350km/s and down to -350km/s and exclusively within a few degrees from the Galactic centre. They form two spatially separated streams: one stream is at positive longitudes and consists of stars going away from us and the other is at negative longitudes consisting of stars approaching us. I show that closed orbits in a simple mass model for the bar explain quantitatively the existence of the two streams and the velocities observed. The mass of the bar is estimated on dynamical grounds: 3x1010Msun.

Abstract Copyright: ∼

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

Simbad objects: 35

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Number of rows : 35
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 IRAS 17108-3512 AB* 17 14 12.44880 -35 16 09.0336           O-rich 6 0
2 IRAS 17205-3330 OH* 17 23 50.17128 -33 33 24.2892           O-rich 4 0
3 IRAS 17229-3017 AB* 17 26 10.7627593199 -30 20 23.391468450           ~ 4 0
4 IRAS 17265-2908 * 17 29 45.0447984360 -29 10 27.165340992           ~ 4 0
5 IRAS 17289-3437 AB* 17 32 13.65936 -34 39 27.6084           ~ 4 0
6 IRAS 17297-3425 AB* 17 33 02.1168508776 -34 27 15.943462596           ~ 4 0
7 IRAS 17308-2657 AB* 17 33 59.31600 -26 59 21.6384           ~ 4 0
8 IRAS 17310-3432 OH* 17 34 20.77656 -34 34 54.8580           O-rich 16 1
9 IRAS 17326-2951 OH* 17 35 48.21312 -29 53 47.2560           O-rich 6 0
10 IRAS 17326-3056 LP* 17 35 55.5195546336 -30 58 30.766157976           ~ 3 0
11 IRAS 17331-2810 * 17 36 15.51912 -28 12 21.3840           ~ 4 0
12 IRAS 17348-3114 Y*? 17 38 03.299 -31 16 09.45           ~ 4 0
13 IRAS 17371-2849 OH* 17 40 20.31504 -28 50 55.1328           O-rich 6 0
14 IRAS 17371-3025 * 17 40 22.3984738512 -30 27 27.462717108           ~ 2 0
15 IRAS 17385-3332 pA* 17 41 52.2837531864 -33 33 40.593695040           G2 33 0
16 IRAS 17412-2430 AB* 17 44 17.90664 -24 31 58.2744           ~ 5 0
17 IRAS 17422-2748 IR 17 45 24.6 -27 49 44           ~ 4 0
18 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
19 OH 000.74+00.41 OH* 17 45 46.67520 -28 05 29.3028           O-rich 13 0
20 IRAS 17435-3003 Mi* 17 46 44.20032 -30 04 06.2508           ~ 6 0
21 IRAS 17447-3418 OH* 17 48 01.5131779752 -34 19 40.305970848           O-rich 4 0
22 IRAS 17461-2632 Mi* 17 49 13.7923124088 -26 33 45.713341728         19.120 ~ 8 0
23 IRAS 17472-2842 * 17 50 24.19 -28 43 49.5           ~ 5 0
24 IRAS 17489-2824 OH* 17 52 08.81712 -28 24 56.8332           O-rich 7 0
25 IRAS 17503-2617 AB* 17 53 29.89128 -26 17 51.5940           O-rich 5 0
26 IRAS 17518-2727 * 17 54 58.09560 -27 27 38.8728           ~ 2 0
27 IRAS 17528-3052 OH* 17 56 04.40040 -30 52 57.0180           O-rich 5 0
28 IRAS 17535-2421 AB* 17 56 34.45440 -24 22 10.2396           O-rich 3 0
29 IRAS 17541-2706 OH* 17 57 14.95632 -27 06 34.4052           O-rich 9 0
30 IRAS 17577-2641 OH* 18 00 49.9534655493 -26 41 02.747715303           O-rich 5 0
31 IRAS 17578-2914 Mi* 18 01 02.45904 -29 14 05.3484         18.798 ~ 10 1
32 IRAS 17582-2056 AB* 18 01 15.64704 -20 56 26.3076           ~ 4 0
33 IRAS 18006-1940 AB* 18 03 37.25208 -19 40 25.3092           ~ 4 0
34 NAME Galactic Bulge reg ~ ~           ~ 4794 0
35 NAME Galactic Bar reg ~ ~           ~ 1458 0

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