2023ApJ...949...10M

Query : 2023ApJ...949...10M

2023ApJ...949...10M - Astrophys. J., 949, 10 (2023/May-3)

The Parallax and 3D Kinematics of Water Masers in the Massive Star-forming Region G034.43+0.24.

MAI X., ZHANG B., REID M.J., MOSCADELLI L., XU S., SUN Y., ZHANG J., CHEN W., WEN S., LUO Q., MENTEN K.M., ZHENG X., BRUNTHALER A., XU Y. and WANG G.

Abstract (from CDS):

We report a measurement of the trigonometric parallax of 22 GHz water masers in the massive star-forming region G034.43+0.24 as part of the Bar and Spiral Structure Legacy Survey using the Very Long Baseline Array. The parallax is 0.330 ± 0.018 mas, corresponding to a distance of ${3.03}_{-0.16}^{+0.17}$ kpc. This locates G034.43+0.24 near the inner edge of the Sagittarius spiral arm and at one end of a linear distribution of massive young stars that cross nearly the full width of the arm. The measured three-dimensional motion of G034.43+0.24 indicates a near-circular Galactic orbit. The water masers display arc-like distributions, possibly bow shocks, associated with winds from one or more massive young stars.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Milky Way Galaxy - Star formation - Trigonometric parallax - Interstellar masers

Simbad objects: 24

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Number of rows : 24
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 QSO B0016+73 Bla 00 19 45.78637230 +73 27 30.0176020     19.00 18.26   ~ 313 1
2 NAME Car-Sgr Arm PoG 15 00 -40.0           ~ 581 1
3 6C 163718+572618 Bla 16 38 13.45629995 +57 20 23.9789828     16.90 16.94   ~ 381 1
4 4C 51.37 Bla 17 40 36.97784792 +52 11 43.4073694   18.16 18.70 16.73   ~ 441 1
5 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
6 EGO G011.92-0.61 of? 18 13 58.1 -18 54 17           ~ 54 0
7 QSO J1824+1044 Bla 18 24 02.85524975 +10 44 23.7739493   17.66 17.27 16.71   ~ 182 1
8 NVSS J184821+013826 Rad 18 48 21.81035 +01 38 26.6322           ~ 8 1
9 [IBR2011] J1853-0010 Rad 18 53 10.2692 -00 10 50.740           ~ 2 0
10 AGAL G034.411+00.234 Y*O 18 53 18.0319 +01 25 25.500           ~ 108 0
11 MSXDC G034.43+00.24 MoC 18 53 18.9 +01 26 39           ~ 122 0
12 EGO G035.03+0.35 of? 18 54 00.5 +02 01 18           ~ 40 0
13 Caswell OH 035.02+00.35 Mas 18 54 00.6576 +02 01 19.217           ~ 17 0
14 [RMB2014] G037.42+01.51 Mas 18 54 14.3481 +04 41 39.647           ~ 5 0
15 NVSS J185535+025119 Rad 18 55 35.43648898 +02 51 19.5650288           ~ 22 1
16 SNR G034.6-00.5 SNR 18 56 10.650 +01 13 21.30           ~ 1034 2
17 GAL 035.2-00.74 cor 18 58 13.00 +01 40 36.0           ~ 176 0
18 [HMW2016] G034.791-01.386 Mas 18 59 45.9838 +01 01 18.947           ~ 7 0
19 NAME Sgr Arm PoG 19 00 -30.0           ~ 710 1
20 OH 035.200-01.736 Mas 19 01 45.5420 +01 13 32.690           ~ 20 0
21 NAME Radcliffe Wave PoG ~ ~           ~ 81 0
22 NAME Local Arm reg ~ ~           ~ 649 0
23 NAME Galactic Bar reg ~ ~           ~ 1458 0
24 NAME Sct-Cen PoG ~ ~           ~ 286 0

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