1999MNRAS.304..906G

Query : 1999MNRAS.304..906G

1999MNRAS.304..906G - Mon. Not. R. Astron. Soc., 304, 906-924 (1999/April-3)

A survey of high-frequency SiO masers in supergiants and AGB stars.

GRAY M.D., HUMPHREYS E.M.L. and YATES J.A.

Abstract (from CDS):

We report the results of a survey of high-frequency SiO maser emission from a sample of 34 late-type supergiant and AGB stars. Four new sources were detected, including the first detection of 301-GHz emission from an S-type star. Variability of the maser emission with stellar phase is discussed in detail. We find that high-frequency SiO maser emission appears to be exceptionally weak or absent in Mira variables over an optical phase range of approximately 0.4 to 0.7. No significant correlation is found between maser photon luminosity and spectral type for non-supergiant types. Centroid velocities of spectra appear to be redder than the stellar velocity over a phase range that is wider than the band where emission is weak on average. However, the conclusion that only the blue features appearing in spectra after an optical phase of 0.7–0.8 correspond to new masing objects should be viewed with caution.

Abstract Copyright: 1999, Royal Astronomical Society

Journal keyword(s): masers - surveys - stars: AGB and post-AGB - circumstellar matter - supergiants - radio lines: stars

Simbad objects: 34

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Number of rows : 34
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 V* SV And Mi* 00 04 20.0747373144 +40 06 35.834145228   11.78 11.53 8.67   M5-7e 84 0
2 * omi Cet Mi* 02 19 20.79210 -02 58 39.4956   7.63 6.53 5.03   M5-9IIIe+DA 1528 0
3 V* S Per s*r 02 22 51.7113133056 +58 35 11.422774248 13.22 10.55 7.90     M4.5-7Iae 376 0
4 V* R Cet Mi* 02 26 02.3168041392 -00 10 41.813680476   10.5 7.20     M4-5e 141 0
5 V* U Cet Mi* 02 33 43.6707113952 -13 08 54.484014408   9.70 6.80     M3.5-6e 99 0
6 OH 141.7+03.5 OH* 03 33 30.6174715608 +60 20 08.858343228           O-rich 59 0
7 V* IK Tau OH* 03 53 28.8924743304 +11 24 21.895183368 16.99 14.463 16.171 14.101   M7-11 638 0
8 V* S Tau Mi* 04 29 11.7453742152 +09 56 43.593074196   13.943 12.190 14.386   M7e 60 0
9 V* TX Cam Mi* 05 00 51.1627935408 +56 10 54.041462220       14.02   M9-9.5 350 0
10 IRC +50137 OH* 05 11 19.4506093584 +52 52 33.235824324           M10 174 0
11 V* S Ori Mi* 05 29 00.8923286472 -04 41 32.762469480   10.44 7.20     M6.5-7.5e 201 0
12 V* U Ori Mi* 05 55 49.1707632432 +20 10 30.677904084 6.82 6.39 5.40 6.24   M6-9.5e 488 0
13 V* VY CMa s*r 07 22 58.3261352189 -25 46 03.194390594 12.01 10.068 8.691 7.938   M5Iae 1104 0
14 V* DU Pup Mi* 07 35 03.9791529336 -23 59 14.805817260     14 9.86   M8 29 0
15 OH 231.8+04.2 OH* 07 42 16.947 -14 42 50.20           M10III+A 533 0
16 V* IW Hya OH* 09 45 15.2390936088 -22 01 45.329402244     16     M8/9 111 0
17 V* R Leo Mi* 09 47 33.4839808805 +11 25 43.823283729 9.22 8.94 7.53 3.39 0.12 M7-9e 912 1
18 V* R Crt AB* 11 00 33.8525664720 -18 19 29.582708520   10.33 9.80     M7/8III 211 0
19 V* RT Vir AB* 13 02 37.9814644272 +05 11 08.362884984 10.07 9.07 7.41     M8III 318 0
20 V* R Hya Mi* 13 29 42.7801586466 -23 16 52.751628992 7.26 6.58 4.97 2.27 -0.15 M6-9e 488 0
21 V* W Hya Mi* 13 49 02.0018313132 -28 22 03.532006894   8.97 7.70     M7.5-9e 640 0
22 V* RX Boo AB* 14 24 11.6253191184 +25 42 13.394221596   9.23 8.60     M7.5-M8 441 0
23 V* S CrB Mi* 15 21 23.9553294936 +31 22 02.584877304 7.51 7.15 5.80 8.12   M6.5-8e 351 0
24 Hen 2-289 Sy* 17 49 48.2107694784 -37 01 27.797630520       13.828   M4/5:e 162 0
25 V* VX Sgr s*r 18 08 04.0442790744 -22 13 26.600899044 11.72 9.41 6.52 3.90 2.11 M8.5Ia 596 0
26 OH 026.5+00.6 OH* 18 37 32.50920 -05 23 59.1936           O-rich 301 1
27 V* R Aql OH* 19 06 22.2510922392 +08 13 48.012661776 8.06 7.69 6.09     M6.5-9e 564 2
28 * chi Cyg S* 19 50 33.9213430345 +32 54 50.575531294 7.02 6.06 4.24 1.81 -0.01 S6-9/1-2e 694 0
29 NML Cyg s*r 20 46 25.5392819088 +40 06 59.464289232           M7/8 508 0
30 V* SV Peg AB* 22 05 42.0835861728 +35 20 54.562625016   10.06 9.20     M7 135 0
31 V* R Peg Mi* 23 06 39.1661885712 +10 32 36.080828808 9.43 9.07 7.79 4.87 2.35 M6-8.5e 224 0
32 V* V Cas Mi* 23 11 40.7202756960 +59 41 58.979830092   10.04 6.90 7.38   M5-7.5e 147 0
33 V* R Aqr Sy* 23 43 49.4634303216 -15 17 04.176349872   8.823 7.683 9.37   M6.5-8.5e 784 0
34 V* R Cas Mi* 23 58 24.8682785040 +51 23 19.713029388 6.71 6.63 4.80     M6.5-9e 703 0

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