2001A&A...368..950V


Query : 2001A&A...368..950V

2001A&A...368..950V - Astronomy and Astrophysics, volume 368, 950-968 (2001/3-4)

Circumstellar masers in the Magellanic Clouds.

VAN LOON J.T., ZIJLSTRA A.A., BUJARRABAL V. and NYMAN L.-A.

Abstract (from CDS):

Result. are presented of a search for 22 GHz H2O 616->523, 43 GHz SiOv=1(J=1->0), 86 GHz SiOv=1(J=2->1) and 129 GHz SiOv=1(J=3->2) maser emission from bright IRAS point sources in the Small and Large Magellanic Clouds - mostly circumstellar envelopes around obscured red supergiants and Asymptotic Giant Branch stars (OH/IR stars). The aim of this effort was to test whether the kinematics of the mass loss from these stars depends on metallicity. H2O maser emission was detected in the red supergiants IRAS 04553-6825 and IRAS 05280-6910, and tentatively in the luminous IR object IRAS 05216-6753 and the AGB star IRAS 05329-6708, all in the LMC. SiOv=1(J=2->1) maser emission was detected in IRAS 04553-6825. The double-peaked H2O maser line profiles of IRAS 04553-6825 and IRAS 05280-6910, in combination with the OH (and SiO) maser line profiles, yield the acceleration of the outflows from these stars. The outflow velocity increases between the H2O masing zone near the dust-formation region and the more distant OH masing zone from v∼18 to 26km/s for IRAS 04553-6825 and from v∼6 to 17km/s for IRAS 05280-6910. The total sample of LMC targets is analysed in comparison with circumstellar masers in the Galactic Centre. The photon fluxes of circumstellar masers in the LMC are found to be very similar to those in the Galactic Centre. The expansion velocities in the LMC appear to be ∼20% lower than for similarly bright OH masers in the Galactic Centre, but the data are still consistent with no difference in expansion velocity. OH/IR stars in the LMC appear to have slower accelerating envelopes than OH/IR stars in the Galactic Centre. The masers in the LMC have blue-asymmetric emission profiles. This may be due to the amplification of stellar and/or free-free radiation, rather than the amplification of dust emission, and may be more pronounced in low metallicity envelopes. The SiO maser strength increases with the photometric amplitude at 2.2µm but is independent of the photometric amplitude at 10µm. This suggests a strong connection between shocks in the dust-free SiO masing zone and the dust formation process. The LMC masers obey the same trend as the Galactic Centre masers. Appendices describe H2O maser emission from the moderately mass-losing AGB star R Dor in the Milky Way, optical echelle spectroscopy of IRAS 04553-6825, and the properties of circumstellar masers in the Galactic Centre.

Abstract Copyright:

Journal keyword(s): masers - circumstellar matter - stars: mass loss - stars: AGB and post-AGB - supergiants - Magellanic Clouds

Simbad objects: 115

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Number of rows : 115
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 V* BE Phe Mi? 00 21 47.4180506941 -40 17 15.472495948         11.51 M9+ 31 0
2 RAW 323 C* 00 46 08.3794608058 -73 47 25.886541732   18.75 16.57   14.646 C 9 0
3 IRAS 00483-7347 Mi* 00 50 07.19 -73 31 25.2     22.532   16.016 M 32 0
4 LHA 115-N 36 Em* 00 50 24.8 -72 52 53     14.4     ~ 18 1
5 [SSH97] 156 sh 00 50 25 -72 51.8           ~ 3 0
6 IRAS F00486-7308 Mi* 00 50 30.6344468659 -72 51 29.883329529     17.089   13.391 M8II 22 0
7 [MA93] 368 Em* 00 50 30.71 -72 51 04.7     15.4     ~ 3 0
8 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9854 1
9 IRC +10011 OH* 01 06 25.9889735162 +12 35 52.890666456   20.7   18.26 14.01 M8 407 0
10 [SSH97] 369 sh 01 08 53 -71 24.0           ~ 4 0
11 SV* HV 12956 AB* 01 09 02.2605592815 -71 24 10.276097026 17.29 17.78 15.65   14.65 M5e 25 0
12 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5994 1
13 V* IK Tau Mi* 03 53 28.8884898148 +11 24 21.865959095 16.99 17.03 13.39 7.29 3.20 M7-11 590 0
14 V* R Dor AB* 04 36 45.59127 -62 04 37.7974 7.84 6.98 5.40 2.71 -0.44 M8III:e 302 0
15 IRAS 04407-7000 Mi* 04 40 28.4948673977 -69 55 13.701099825       15.973 14.829 M7.5 26 0
16 IRAS 04491-6915 IR 04 48 53.8 -69 09 55           ~ 2 0
17 LHA 120-N 77D HII 04 48 54.714 -69 09 46.62           ~ 15 0
18 IRAS 04498-6842 Mi* 04 49 41.4650336568 -68 37 51.232315614     19.98 17.77 13.250 M 30 0
19 2MASSI J0451115-692646 Y*O 04 51 11.477 -69 26 46.89           ~ 7 0
20 IRAS 04530-6916 Y*? 04 52 45.668 -69 11 49.47       17.227   B[e] 20 1
21 LHA 120-N 81 reg 04 52 56 -69 13.5           ~ 11 1
22 IRAS 04545-7000 AB* 04 54 10.06 -69 55 58.3           ~ 25 0
23 LHA 120-N 83 HII 04 54 15 -69 10.6           ~ 37 0
24 NGC 1748 As* 04 54 24.6 -69 11 01   12.750 12.3     ~ 58 2
25 WOH S 71 LP* 04 55 03.0819961926 -69 29 12.696411856   15.31 13.905 13.13 10.665 M2 19 0
26 WOH G 64 Mi* 04 55 10.5252313969 -68 20 29.998470169     18.46 15.69 12.795 M7.5 85 0
27 IRAS 04571-6627 mul 04 57 15.5 -66 23 14           ~ 52 1
28 HD 32340 Em* 04 57 16.253 -66 23 20.94   13.11 12.45 14.00   O3-O6V 77 0
29 SV* HV 2255 * 04 57 43.3040948999 -70 08 50.406116306   14.53 12.40 11.78 10.145 M4 27 0
30 NGC 1918 SNR 05 19 04.50 -69 38 56.0           ~ 95 0
31 HD 35517 WR* 05 19 16.3520500120 -69 39 20.008292786 11.193 11.754 11.58 12.36 11.953 WC4+O5/6III/V+O 83 0
32 HD 269382 SB* 05 19 17.768352 -69 39 14.22828   10.843 11.101 11.685   O9.5Ib 23 0
33 IRAS 05198-6941 IR 05 19 24.6 -69 38 44           ~ 1 0
34 [BE74] 560 LP* 05 19 29.6269599742 -69 38 30.447852148     13.95 13.11   ~ 6 0
35 HD 269404 PN 05 21 29.7100972536 -67 51 06.794085069 14.32 14.96 14.17   14.00 ~ 29 0
36 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15461 1
37 NGC 1984 Cl* 05 27 40 -69 08.1   10.00 9.99     ~ 76 0
38 NGC 1994 Cl* 05 28 22.7 -69 08 32           ~ 47 0
39 HD 269599 ** 05 28 22.71 -69 08 31.9   10.741       ~ 60 3
40 IRAS 05298-6957 pA* 05 29 24.61 -69 55 14.2           ~ 37 0
41 NAME LMC 4 Supergiant Shell sh 05 31 33 -66 40.5           ~ 167 0
42 OGLE LMC518.11.015544 EB* 05 32 27.3930331878 -67 41 36.662273759     14.453   14.243 ~ 6 0
43 LHA 120-N 57A HII 05 32 28.2 -67 42 11           ~ 48 1
44 MSX LMC 807 AB* 05 32 37.16 -67 06 56.4           ~ 14 0
45 IRAS 05329-6708 LP* 05 32 52.3485930047 -67 06 25.919426492     16.36 14.939   ~ 30 0
46 SV* HV 5933 V* 05 33 26.8344226997 -67 04 13.508903315   14.26 12.48 11.06   M3I 18 0
47 IRAS 05346-6949 * 05 34 14.344 -69 47 20.39           ~ 19 0
48 IRAS 05402-6956 Mi* 05 39 44.89 -69 55 18.1         19.702 ~ 26 0
49 LHA 120-N 172 HII 05 40 12.3 -69 55 01           ~ 13 0
50 LHA 120-N 173 HII 05 40 22.9 -69 53 16           ~ 14 0
51 V* S Col Mi* 05 46 56.3071200737 -31 41 28.351121384   11.98 11.01     M8 67 0
52 V* TT Col Mi* 05 49 06.3557074854 -32 20 00.398491965     11.5     M7 17 0
53 V* U Ori Mi* 05 55 49.1689920441 +20 10 30.690374867 6.82 6.39 5.40     M6-9.5e 476 0
54 V* VY CMa s*r 07 22 58.32877 -25 46 03.2355 12.01 10.19 7.95     M5Iae 1032 0
55 V* V353 Pup LP* 07 46 34.1471255132 -32 18 16.479255102   11.52 9.25     M4 27 0
56 V* IW Hya OH* 09 45 15.2271331857 -22 01 45.289428464     16     M8/9 106 0
57 OH 285.05 +0.07 OH* 10 30 36.4952009425 -57 48 52.857849911           M9+: 21 0
58 V* V425 Car OH* 10 39 55.7319492521 -58 33 19.064223454         14.54 M9 25 0
59 OH 300.93 -0.03 OH* 12 33 55.1848711022 -62 49 56.780603820           M9: 17 0
60 V* W Hya Mi* 13 49 02.0018313132 -28 22 03.532006894   8.97 7.70     M7.5-9e 613 0
61 OH 315.22 +0.01 OH* 14 33 30.5864345574 -60 23 31.579836586     13.80     ~ 19 0
62 V* S CrB Mi* 15 21 23.9560807971 +31 22 02.567988144 7.51 7.15 5.80     M6.5-8e 337 0
63 V* U Her Mi* 16 25 47.4723609675 +18 53 32.862370166 8.85 8.23 6.70     M6.5-8+e 523 1
64 OH 341.12 -0.00 OH* 16 51 02.04408 -44 23 29.9040           ~ 13 1
65 OH 342.01 +0.25 LP* 16 53 04.8813217991 -43 32 47.320605517           ~ 21 0
66 OH 346.86 -0.18 OH* 17 10 52.4294965064 -39 58 49.856997156         13.71 ~ 15 0
67 OH 344.83 -1.67 OH* 17 10 53.6591818927 -42 28 59.702804001           ~ 15 0
68 V* V1013 Sco OH* 17 16 15.977 -37 52 04.62           ~ 16 0
69 RAFGL 1992 OH* 17 39 14.93424 -30 14 24.3204           O-rich 51 1
70 IRAS 17411-2843 OH* 17 44 19.22928 -28 44 21.7824           ~ 11 0
71 [CGK94] GRS 1741.5-2851 Star 1 * 17 44 27.7 -28 50 58           ~ 3 0
72 OH 359.943 +0.260 OH* 17 44 28.197 -28 50 56.16           ~ 11 0
73 [TVH89] 158 OH* 17 44 34.327 -29 10 38.59           ~ 19 0
74 IRAS 17413-2909 IR 17 44 34.6 -29 10 38           ~ 6 0
75 OH 359.76 +0.12 OH* 17 44 34.962 -29 04 35.67           ~ 29 0
76 GAL 359.977+00.168 Y*O 17 44 53.4 -28 52 20           ~ 23 0
77 OH 359.974 +0.162 OH* 17 44 55.62 -28 52 27.0           ~ 14 0
78 IRAS 17419-2837 IR 17 45 06.9 -28 38 37           ~ 1 0
79 IRAS 17419-2907 IR 17 45 10.2 -29 09 10           ~ 9 0
80 OH 0.200 +0.233 OH* 17 45 11.454 -28 38 38.53           ~ 12 0
81 OH 359.763 -0.042 OH* 17 45 13.07 -29 09 36.3           ~ 12 0
82 [WHM98] 34-63 Mi* 17 45 14.41 -29 09 18.5           ~ 8 0
83 IRAS 17421-2857 IR 17 45 18.3 -28 58 27           ~ 5 0
84 [WHM98] 60-1 Mi* 17 45 18.299 -28 58 39.31           ~ 7 0
85 OH 359.45 -0.27 OH* 17 45 20.388 -29 32 57.60           ~ 2 0
86 IRAS 17421-2931 MIR 17 45 20.39256 -29 32 57.6996           ~ 1 0
87 [WHM98] 13-15 Mi* 17 45 31.92264 -29 25 00.2640           ~ 4 0
88 OH 359.6 -0.2 OH* 17 45 33.515 -29 25 08.51           ~ 11 1
89 IRAS 17423-2924 mul 17 45 34.3 -29 25 15           ~ 5 1
90 RAFGL 2003 IR 17 45 39.1 -29 00 23           ~ 22 0
91 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12299 0
92 [IDF98] SiO 359.944-0.046 3 Mas 17 45 40 -29 00.4           ~ 6 0
93 [TVH89] 179 OH* 17 45 40.63 -29 00 23.5           ~ 58 0
94 OH 359.712 -0.263 Mas 17 45 57 -29 19.1           ~ 3 0
95 OH 0.053 -0.062 OH* 17 45 59.472 -28 55 23.63           ~ 16 0
96 IRAS 17428-2918 IR 17 46 00.4154292434 -29 19 08.837090919           ~ 1 0
97 OH 359.94 -0.14 OH* 17 46 02 -29 03.9           ~ 3 0
98 IRAS 17429-2903 IR 17 46 06.1 -29 04 14           ~ 3 0
99 [WHM98] 39-1 Mi* 17 46 37.64064 -29 19 28.3332           ~ 4 0
100 OH 359.8 -0.4 OH* 17 46 38.12064 -29 19 30.6768           ~ 11 0
101 IRAS 17436-2807 HII 17 46 50.9 -28 09 00           ~ 10 0
102 OH 0.8 +0.2 OH* 17 46 51.06864 -28 08 52.0404           ~ 6 0
103 NAME Sgr B2 Maser C Mas 17 47 20.17 -28 23 04.5           ~ 9 0
104 IRAS 17441-2822 HII 17 47 20.224 -28 23 04.13           ~ 24 0
105 OH 2.6 -0.4 OH* 17 53 18.84768 -26 56 37.4064           M8-9 71 0
106 V* VX Sgr s*r 18 08 04.0431479808 -22 13 26.629744195 11.72 9.41 6.52 3.90 2.11 M8.5Ia 565 0
107 OH 26.5 +0.6 OH* 18 37 32.50920 -05 23 59.1936           O-rich 286 0
108 V* R Aql OH* 19 06 22.2510506325 +08 13 48.000441251 8.06 7.69 6.09     M6.5-9e 545 0
109 IRC -20540 OH* 19 08 54.9265603412 -22 14 18.578913052     17 14.58 10.55 M8: 76 0
110 V* RR Aql Mi* 19 57 36.0628075265 -01 53 11.322802573     7.80     M7.5e 285 2
111 IRC -10529 OH* 20 10 27.8733409252 -06 16 13.757843352         15.49 M: 135 0
112 NML Cyg s*r 20 46 25.5382179476 +40 06 59.396202678   18.64 16.60     M7/8 488 0
113 V* CD Gru Mi? 22 26 10.7033687377 -45 14 11.824133432           M8 27 0
114 V* KZ Peg Mi* 22 54 11.4035845391 +08 54 07.371571362           M7 70 1
115 V* R Aqr Sy* 23 43 49.4629939776 -15 17 04.184232557   8.823 7.683 9.37   M6.5-8.5e 753 0

    Equat.    Gal    SGal    Ecl

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2021.07.25-17:49:18

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