Gas infall and possible circumstellar rotation in R Leo

Autor:	Fonfría, J. P., Santander-García, M., Cernicharo, J., Velilla-Prieto, L., Agúndez, M., Marcelino, N., Quintana-Lacaci, G.
Rok vydání:	2019
Předmět:	Astrophysics - Solar and Stellar Astrophysics Astrophysics - Astrophysics of Galaxies
Zdroj:	A&A 622, L14 (2019)
Druh dokumentu:	Working Paper
DOI:	10.1051/0004-6361/201834840
Popis:	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 arcsec. These observations permit us to resolve the innermost envelope of this star revealing the existence of 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 right in front to the star typical of material infall and lateral gas motions compatible with the presence of a torus-like structure. Comment: 5 pages, 3 figures, 1 table; accepted for publication in A&A
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1902.02574 Zobrazit plný text záznamu View this record from Arxiv