2001AJ....122.2679P

Query : 2001AJ....122.2679P

2001AJ....122.2679P - Astron. J., 122, 2679-2685 (2001/November-0)

Coordinated millimeter VLBI array observations of R Cassiopeiae: 86 GHz SiO masers and envelope dynamics.

PHILLIPS R.B., SIVAKOFF G.R., LONSDALE C.J. and DOELEMAN S.S.

Abstract (from CDS):

Coordinated Millimeter VLBI Array measurements at 86 GHz have imaged the silicon monoxide masers of the nearby red giant R Cassiopeiae at two epochs separated by approximately 1/12 the stellar pulsation period. The v=1, J=2⟶1 transition comes from a ring at 1.5 to 2 stellar radii. Doppler velocity patterns are ordered over scales up to ∼1 AU but are not consistent with simple models such as global rotation. One major masing region disappeared in the interval between the two epochs.

Abstract Copyright: ∼

Journal keyword(s): Stars: Circumstellar Matter - Radio Emission Lines - Stars: AGB and Post-AGB - Techniques: Interferometric

Simbad objects: 6

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Number of rows : 6
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 * omi Cet Mi* 02 19 20.79210 -02 58 39.4956   7.63 6.53 5.03   M5-9IIIe+DA 1586 0
2 V* TX Cam Mi* 05 00 51.1627935408 +56 10 54.041462220       14.02   M9-9.5 365 0
3 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
4 NML Cyg s*r 20 46 25.5392819088 +40 06 59.464289232           M7/8 527 0
5 V* R Aqr Sy* 23 43 49.4634303216 -15 17 04.176349872   8.823 7.683 9.37   M6.5-8.5e 823 0
6 V* R Cas Mi* 23 58 24.8682785040 +51 23 19.713029388 6.71 6.63 4.80     M6.5-9e 728 0

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