2019MNRAS.490.3329N

Query : 2019MNRAS.490.3329N

2019MNRAS.490.3329N - Mon. Not. R. Astron. Soc., 490, 3329-3340 (2019/December-2)

The nascent wind of AGB star R doradus: evidence for a recent episode of enhanced mass loss.

NHUNG P.T., HOAI D.T., TUAN-ANH P., DARRIULAT P., DIEP P.N., PHUONG N.T. and THAI T.T.

Abstract (from CDS):

We analyse ALMA observations of the SO(JK = 65 - 54) emission of the circumstellar envelope of oxygen-rich AGB star R Dor, probing distances between 20 and 100 au from the star where the nascent wind is building up. We give evidence for a radial outflow covering very large solid angles and displaying strong inhomogeneity both in direction and radially: it contains multiple cores and has a radial dependence suggesting an episode of enhanced mass loss that occurred a century or so ago. Our analysis also confirms the presence of a previously observed rotating disc.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: AGB and post-AGB - circumstellar matter - stars: individual: R Dor - radio lines: stars

Simbad objects: 5

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Number of rows : 5
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* R Dor AB* 04 36 45.59127 -62 04 37.7974 7.84 6.98 5.40 2.71 -0.44 M8III:e 376 0
3 OH 231.8+04.2 OH* 07 42 16.947 -14 42 50.20           M10III+A 548 0
4 V* R Leo Mi* 09 47 33.4839808805 +11 25 43.823283729 9.22 8.94 7.53 3.39 0.12 M7-9e 943 1
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

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