2022ApJ...925..201P

Query : 2022ApJ...925..201P

2022ApJ...925..201P - Astrophys. J., 925, 201-201 (2022/February-1)

Burton's Curse: The Impact of Bulk Flows on the Galactic Longitude-Velocity Diagram and the Illusion of a Continuous Perseus Arm.

PEEK J.E.G., TCHERNYSHYOV K. and MIVILLE-DESCHENES M.-A.

Abstract (from CDS):

In this work, we demonstrate that the Perseus Arm is not a continuous structure of molecular gas in the second quadrant. We first show that the observed, distanced-resolved velocity structure of the Galaxy in the outer disk is capable of creating illusory spiral arms, as was first proposed by Burton. Second, we measure the distances to a collection of CO clouds at velocities consistent with the Perseus arm with 135° < l < 160°. We find these distances using 3D dust maps from Green et al. We determine that these molecular clouds do not preferentially lie at the distance of a purported Perseus arm but rather extend over 3 kpc in distance, with some evidence for a closer, high pitch angle structure between 1 and 1.5 kpc away. Finally, we demonstrate that velocity perturbations of the amplitude found near the Perseus arm can wreak havoc on our interpretation of the longitude-velocity diagram for more than half of the Milky Way disk.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Milky Way dynamics - Milky Way disk - Milky Way rotation - Spiral arms - Interstellar medium

Simbad objects: 82

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Number of rows : 82
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 [MML2017] 4324 MoC 02 35 52.425 +60 00 41.65           ~ 2 0
2 [MML2017] 5909 MoC 02 42 13.817 +61 47 31.85           ~ 2 0
3 [MML2017] 5877 MoC 02 44 24.374 +60 00 05.73           ~ 2 0
4 [MML2017] 2178 MoC 02 47 20.601 +60 48 22.77           ~ 2 0
5 [MML2017] 6000 MoC 02 47 36.309 +61 50 33.00           ~ 2 0
6 [MML2017] 2702 MoC 02 48 10.273 +60 40 51.89           ~ 2 0
7 [MML2017] 2712 MoC 02 50 57.796 +60 48 42.51           ~ 2 0
8 [MML2017] 5935 MoC 02 52 31.602 +57 08 16.73           ~ 2 0
9 [MML2017] 5981 MoC 02 52 42.693 +58 19 36.28           ~ 2 0
10 [MML2017] 2168 MoC 02 55 50.914 +60 33 02.86           ~ 2 0
11 [MML2017] 4360 MoC 02 57 56.437 +58 21 18.21           ~ 2 0
12 [MML2017] 5954 MoC 02 58 58.607 +62 17 30.80           ~ 2 0
13 [MML2017] 4363 MoC 03 07 02.662 +58 30 25.17           ~ 2 0
14 [MML2017] 3397 MoC 03 07 56.944 +56 44 49.16           ~ 2 0
15 [MML2017] 3398 MoC 03 12 11.973 +56 21 10.48           ~ 2 0
16 [MML2017] 5988 MoC 03 12 17.400 +58 08 00.92           ~ 2 0
17 [MML2017] 3417 MoC 03 14 20.691 +58 32 23.46           ~ 2 0
18 [MML2017] 6078 MoC 03 17 28.893 +53 21 05.16           ~ 2 0
19 [MML2017] 4338 MoC 03 20 44.339 +55 54 45.31           ~ 2 0
20 [MML2017] 6047 MoC 03 20 58.499 +58 54 51.73           ~ 2 0
21 [MML2017] 2190 MoC 03 29 06.930 +54 50 24.14           ~ 2 0
22 NAME Per Arm PoG 03 30 +45.0           ~ 1672 0
23 [MML2017] 3444 MoC 03 34 26.788 +54 26 46.17           ~ 2 0
24 [MML2017] 6074 MoC 03 34 42.839 +59 49 23.63           ~ 2 0
25 [MML2017] 6164 MoC 03 38 40.614 +52 18 26.72           ~ 2 0
26 [MML2017] 6238 MoC 03 39 35.758 +52 19 31.83           ~ 2 0
27 [MML2017] 3429 MoC 03 40 37.379 +56 23 28.62           ~ 2 0
28 [MML2017] 6057 MoC 03 41 51.890 +52 08 45.39           ~ 2 0
29 [MML2017] 4356 MoC 03 43 25.828 +56 47 47.91           ~ 2 0
30 [MML2017] 2731 MoC 03 43 56.634 +55 51 04.70           ~ 2 0
31 [MML2017] 6103 MoC 03 44 46.143 +51 43 05.40           ~ 2 0
32 [MML2017] 6097 MoC 03 46 59.551 +57 24 04.75           ~ 2 0
33 [MML2017] 3430 MoC 03 47 35.060 +55 38 42.63           ~ 2 0
34 [MML2017] 4410 MoC 03 48 18.348 +54 52 54.19           ~ 2 0
35 [MML2017] 4463 MoC 03 49 18.123 +52 08 42.75           ~ 2 0
36 [MML2017] 3454 MoC 03 49 48.515 +55 42 39.25           ~ 2 0
37 [MML2017] 4402 MoC 03 50 24.573 +53 21 24.50           ~ 2 0
38 [MML2017] 5892 MoC 03 51 04.784 +57 35 59.32           ~ 2 0
39 [MML2017] 6183 MoC 03 54 30.853 +50 16 52.56           ~ 2 0
40 [MML2017] 6070 MoC 03 54 32.994 +56 56 41.94           ~ 2 0
41 [MML2017] 2182 MoC 03 55 36.440 +53 44 11.10           ~ 3 0
42 [MML2017] 4407 MoC 03 58 48.727 +52 47 16.93           ~ 2 0
43 [MML2017] 2736 MoC 04 02 26.009 +51 16 59.16           ~ 2 0
44 [MML2017] 2757 MoC 04 03 00.539 +51 17 00.51           ~ 2 0
45 [MML2017] 4409 MoC 04 03 46.560 +53 20 29.49           ~ 2 0
46 [MML2017] 2201 MoC 04 07 13.958 +50 16 14.18           ~ 2 0
47 [MML2017] 6125 MoC 04 07 31.394 +54 41 05.79           ~ 2 0
48 [MML2017] 4386 MoC 04 07 50.443 +52 20 58.18           ~ 2 0
49 [MML2017] 2749 MoC 04 07 52.466 +51 03 54.20           ~ 2 0
50 [MML2017] 4404 MoC 04 08 07.868 +51 19 05.15           ~ 2 0
51 [MML2017] 5960 MoC 04 11 59.778 +50 14 06.67           ~ 2 0
52 [MML2017] 4476 MoC 04 12 02.614 +49 03 33.34           ~ 2 0
53 [MML2017] 4388 MoC 04 13 02.274 +52 02 06.31           ~ 2 0
54 [MML2017] 4427 MoC 04 14 11.210 +49 41 17.13           ~ 2 0
55 [MML2017] 6165 MoC 04 17 41.067 +47 29 38.91           ~ 2 0
56 [MML2017] 6163 MoC 04 18 17.771 +46 25 04.80           ~ 2 0
57 [MML2017] 6143 MoC 04 18 24.234 +50 31 55.54           ~ 2 0
58 [MML2017] 3477 MoC 04 19 03.212 +48 30 30.05           ~ 2 0
59 [MML2017] 6135 MoC 04 19 29.800 +48 46 03.99           ~ 2 0
60 [MML2017] 6185 MoC 04 20 41.216 +46 27 54.57           ~ 2 0
61 [MML2017] 6240 MoC 04 20 46.665 +47 12 00.43           ~ 2 0
62 [MML2017] 4394 MoC 04 21 02.703 +52 00 58.30           ~ 2 0
63 [MML2017] 3436 MoC 04 22 25.105 +45 24 58.21           ~ 2 0
64 [MML2017] 4496 MoC 04 24 33.145 +45 52 05.64           ~ 2 0
65 [MML2017] 6170 MoC 04 24 39.560 +47 28 33.10           ~ 2 0
66 [MML2017] 3422 MoC 04 26 10.967 +46 18 24.42           ~ 2 0
67 [MML2017] 4494 MoC 04 28 37.952 +45 17 57.79           ~ 2 0
68 [MML2017] 4403 MoC 04 31 05.998 +47 33 31.60           ~ 2 0
69 [MML2017] 4461 MoC 04 32 10.014 +45 00 37.05           ~ 2 0
70 [MML2017] 4495 MoC 04 33 05.856 +44 22 02.99           ~ 2 0
71 [MML2017] 4414 MoC 04 34 27.800 +49 29 27.21           ~ 2 0
72 [MML2017] 6171 MoC 04 40 02.176 +45 09 41.68           ~ 2 0
73 [MML2017] 4396 MoC 04 40 38.368 +50 09 35.65           ~ 2 0
74 [MML2017] 3440 MoC 04 40 50.615 +47 34 16.59           ~ 2 0
75 [MML2017] 6142 MoC 04 41 48.809 +46 07 03.27           ~ 2 0
76 [MML2017] 6155 MoC 04 44 08.802 +49 22 39.63           ~ 2 0
77 [MML2017] 4417 MoC 04 45 36.490 +48 06 05.64           ~ 2 0
78 [MML2017] 6222 MoC 04 47 54.141 +46 13 34.67           ~ 2 0
79 [MML2017] 6131 MoC 04 49 08.066 +49 05 19.73           ~ 2 0
80 NAME Gal Anticenter reg 05 46 +28.9           ~ 1024 0
81 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
82 NAME Local Arm reg ~ ~           ~ 649 0

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