2020RAA....20..192S

Query : 2020RAA....20..192S

2020RAA....20..192S - Research in Astron. and astroph., 20, 192-192 (2020/December-0)

Observational characteristics of SiO masers around VX Sgr.

SU J.-B., SHEN Z.-Q., CHEN X., LIU J., WANG Y. and ZHAO Y.-B.

Abstract (from CDS):

SiO maser VLBA observations toward VX Sgr are performed at five epochs, and lots of maser spots are obtained. We make a statistical analysis on these spots. It is shown that the apparent sizes and the fluxes of maser spots decrease with increasing the distance from the central star. In addition, the similarity between the v = 1,2 (J=1-0) spectrums increases with epochs, consistent with the full width at half maximum (FWHM), while the total fluxes increase. The results may be related to the changeable pumping mechanisms.

Abstract Copyright: © 2020 National Astronomical Observatories

Journal keyword(s): masers - stars: individual: (VX Sgr) - techniques: interferometric - turbulence

Simbad objects: 2

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Number of rows : 2
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 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 622 0
2 V* T Cep Mi* 21 09 31.7834766408 +68 29 27.231070884 9.15 8.82 7.33     M6-9e 391 0

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