2019A&A...622L..14F

Query : 2019A&A...622L..14F

2019A&A...622L..14F - Astronomy and Astrophysics, volume 622L14-14 (2019/2-1)

Gas infall and possible circumstellar rotation in R Leonis.

FONFRIA J.P., SANTANDER-GARCIA M., CERNICHARO J., VELILLA-PRIETO L., AGUNDEZ M., MARCELINO N. and QUINTANA-LACACI G.

Abstract (from CDS):

We present new interferometer molecular observations of R Leo taken at 1.2 mm with the Atacama Large Millimeter Array with an angular resolution up to ≥0.026''. These observations permitted us to resolve the innermost envelope of this star, which revealed a complex structure that involves extended continuum emission and molecular emission showing a non-radial gas velocity distribution. This molecular emission displays prominent red-shifted absorptions located immediately in front of the star, which are typical footprints of material infall. This emission also shows lateral gas motions compatible with a torus-like structure.

Abstract Copyright: © ESO 2019

Journal keyword(s): stars: AGB and post-AGB - stars: individual: R Leo - circumstellar matter - stars: mass-loss - techniques: interferometric - techniques: high angular resolution

Simbad objects: 10

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Number of rows : 10
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* 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
2 V* TX Cam Mi* 05 00 51.1627935408 +56 10 54.041462220       14.02   M9-9.5 365 0
3 * L02 Pup AB* 07 13 32.3185436236 -44 38 22.951891964 7.90 6.66 5.10 2.49 0.07 M5IIIe 230 0
4 PG 0851+202 BLL 08 54 48.8749846272 +20 06 30.639583620   15.649 15.146 15.446   ~ 2513 1
5 [VV2006] J094635.1+101705 Bla 09 46 35.06995887 +10 17 06.1344498   20.03 19.69 18.9   ~ 120 1
6 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
7 ICRF J100252.8+121614 Bla 10 02 52.84524077 +12 16 14.5849145   21.32 20.61 19.63   ~ 41 1
8 QSO J1008+0621 BLL 10 08 00.81616040 +06 21 21.2160257 17.61 17.17 17.85 16.73   ~ 123 1
9 4C 01.28 BLL 10 58 29.60520810 +01 33 58.8237454   18.74 18.28 16.68   ~ 828 2
10 V* W Hya Mi* 13 49 02.0018313132 -28 22 03.532006894   8.97 7.70     M7.5-9e 672 0

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