2017A&A...598A..66P


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.04CEST00:04:44

2017A&A...598A..66P - Astronomy and Astrophysics, volume 598A, 66-66 (2017/2-1)

A Milky Way with a massive, centrally concentrated thick disc: new Galactic mass models for orbit computations.

POULIASIS E., DI MATTEO P. and HAYWOOD M.

Abstract (from CDS):

In this work, two new axisymmetric models for the Galactic mass distribution are presented. Motivated by recent results, these two models include the contribution of a stellar thin disc and of a thick disc, as massive as the thin counterpart but with a shorter scale-length. Both models satisfy a number of observational constraints: stellar densities at the solar vicinity, thin and thick disc scale lengths and heights, rotation curve(s), and the absolute value of the perpendicular force Kz as a function of distance to the Galactic centre. We numerically integrate into these new models the motion of all Galactic globular clusters for which distances, proper motions, and radial velocities are available, and the orbits of about one thousand stars in the solar vicinity. The retrieved orbital characteristics are compared to those obtained by integrating the clusters and stellar orbits in pure thin disc models. We find that, due to the possible presence of a thick disc, the computed orbital parameters of disc stars can vary by as much as 30-40%. We also show that the systematic uncertainties that affect the rotation curve still plague computed orbital parameters of globular clusters by similar amounts.

Abstract Copyright: © ESO, 2017

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

Simbad objects: 69

goto Full paper

goto View the reference in ADS

Number of rows : 69

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 NGC 104 GlC 00 24 05.359 -72 04 53.20   5.78 4.09     ~ 3547 0
2 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 918 0
3 NGC 362 GlC 01 03 14.26 -70 50 55.6     6.58     ~ 938 0
4 NGC 1851 GlC 05 14 06.76 -40 02 47.6   8.80 7.23     ~ 1241 0
5 M 79 GlC 05 24 10.59 -24 31 27.3   9.21 8.16     ~ 716 0
6 NGC 2298 GlC 06 48 59.41 -36 00 19.1   10.77 8.89     ~ 423 0
7 CD-57 1633 HV* 07 06 28.9517777029 -57 27 29.118056344   10.04 9.54     F7V 86 0
8 IRAS 09110-6439 GlC 09 12 03.10 -64 51 48.6   7.77 5.69     ~ 1244 0
9 NGC 3201 GlC 10 17 36.82 -46 24 44.9   9.18 8.24     ~ 722 0
10 NGC 4147 GlC 12 10 06.149 +18 32 31.78   11.45 10.74     ~ 495 0
11 NGC 4372 GlC 12 25 45.43 -72 39 32.7   10.86 9.85     ~ 263 0
12 M 68 GlC 12 39 27.98 -26 44 38.6   10.26 7.96     ~ 876 0
13 NAME NGP reg 12 51 26.275 +27 07 41.70           ~ 1020 0
14 NGC 4833 GlC 12 59 33.92 -70 52 35.4   8.72 7.79     ~ 350 0
15 HD 113679 PM* 13 05 52.8243888123 -38 30 59.990798799   10.342 9.797     G2/3V 81 0
16 M 53 GlC 13 12 55.25 +18 10 05.4   8.95 7.79     ~ 713 0
17 NGC 5139 GlC 13 26 47.28 -47 28 46.1   6.12 5.33     ~ 2996 0
18 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2265 0
19 NGC 5466 GlC 14 05 27.29 +28 32 04.0   10.5 9.70     ~ 719 0
20 BD+06 2932 ** 14 43 17.97109 +05 49 39.7564           G6V 90 0
21 HD 134440 PM* 15 10 12.9678041572 -16 27 46.510775897 10.69 10.217 9.426 8.913 8.441 K2V 256 0
22 NAME Serpens Dwarf GlC 15 16 05.30 -00 06 41.0   15.1       ~ 625 1
23 NGC 5897 GlC 15 17 24.40 -21 00 36.4   10.16 8.52     ~ 337 0
24 M 5 GlC 15 18 33.22 +02 04 51.7   7.34 5.95     ~ 1771 0
25 NGC 5927 GlC 15 28 00.69 -50 40 22.9   10.13 8.86     ~ 404 0
26 NGC 5986 GlC 15 46 03.00 -37 47 11.1     6.92     ~ 306 0
27 M 80 GlC 16 17 02.41 -22 58 33.9           ~ 617 0
28 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1676 0
29 NGC 6144 GlC 16 27 13.86 -26 01 24.6   10.55 9.63     ~ 202 0
30 HD 148816 PM* 16 30 28.4586643435 +04 10 41.603810207 7.75 7.81 7.28 6.82 6.49 F7V 283 0
31 M 107 GlC 16 32 31.86 -13 03 13.6   9.96 8.85     ~ 702 0
32 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2006 0
33 M 12 GlC 16 47 14.18 -01 56 54.7   8.52 6.07     ~ 579 0
34 M 10 GlC 16 57 09.05 -04 06 01.1     4.98     ~ 683 0
35 M 62 GlC 17 01 12.60 -30 06 44.5   8.55 7.39     ~ 512 0
36 M 19 GlC 17 02 37.69 -26 16 04.6   8.45 5.57     ~ 307 1
37 NGC 6284 GlC 17 04 28.747 -24 45 51.22   10.72 7.43     ~ 237 0
38 NGC 6287 GlC 17 05 09.4907827015 -22 42 28.100632364   11.49 10.30     ~ 196 0
39 NGC 6293 GlC 17 10 10.42 -26 34 54.2   9.96 9.02     ~ 243 0
40 NGC 6304 GlC 17 14 32.25 -29 27 43.3   10.33 9.03     ~ 298 0
41 NGC 6316 GlC 17 16 37.42 -28 08 24.0   10.33 9.03     ~ 178 0
42 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 1904 0
43 M 9 GlC 17 19 11.78 -18 30 58.5   9.36 8.42     ~ 277 0
44 NGC 6342 GlC 17 21 10.14 -19 35 14.7   11.25 10.01     ~ 246 0
45 NGC 6356 GlC 17 23 34.99 -17 48 46.9   10.01 7.42     ~ 320 1
46 NGC 6362 GlC 17 31 54.99 -67 02 54.0   9.72 8.86     ~ 487 0
47 NGC 6388 GlC 17 36 17.461 -44 44 08.34   7.40       ~ 805 1
48 NGC 6397 GlC 17 40 42.09 -53 40 27.6   7.39 5.17     ~ 1798 1
49 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11533 0
50 BD-08 4501 PM* 17 47 27.9713460047 -08 46 47.733691581   11.18 10.59     sdF8 108 0
51 NGC 6441 GlC 17 50 13.06 -37 03 05.2   9.26 8.00     ~ 768 0
52 NGC 6584 GlC 18 18 37.60 -52 12 56.8   10.32 8.17     ~ 244 0
53 M 28 GlC 18 24 32.89 -24 52 11.4           ~ 662 0
54 M 22 GlC 18 36 23.94 -23 54 17.1   7.16 6.17     ~ 1217 0
55 NGC 6712 GlC 18 53 04.32 -08 42 21.5   9.85 8.69     ~ 468 0
56 NGC 6723 GlC 18 59 33.15 -36 37 56.1           ~ 430 0
57 NGC 6752 GlC 19 10 52.11 -59 59 04.4   6.96 6.28     ~ 1806 0
58 M 56 GlC 19 16 35.57 +30 11 00.5   8.90       ~ 359 0
59 M 55 GlC 19 39 59.71 -30 57 53.1     6.49     ~ 758 0
60 M 71 GlC 19 53 46.49 +18 46 45.1   7.91 6.1     ~ 1024 0
61 HD 193901 PM* 20 23 35.8472360557 -21 22 14.228814044 9.08 9.22 8.67 8.17 7.87 F7V 255 0
62 NGC 6934 GlC 20 34 11.37 +07 24 16.1   10.48 9.75     ~ 359 0
63 NGC 7006 GlC 21 01 29.465 +16 11 16.49     10.46     ~ 485 0
64 M 15 GlC 21 29 58.33 +12 10 01.2   3       ~ 2907 0
65 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 899 1
66 M 30 GlC 21 40 22.12 -23 10 47.5     7.10     ~ 913 0
67 Cl Pal 12 GlC 21 46 38.84 -21 15 09.4     11.89     ~ 449 0
68 GCl 124 GlC 23 06 44.48 +12 46 19.2   15.6       ~ 233 1
69 HD 221580 PM* 23 33 40.1542788235 -53 39 29.295486517   9.86 9.21     G8/K1wF 30 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2017A&A...598A..66P and select 'bookmark this link' or equivalent in the popup menu


2020.07.04-00:04:44

© Université de Strasbourg/CNRS

    • Contact