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pro vyhledávání: '"V. Bujarrabal"'
There is a class of binary post-asymptotic giant branch (post-AGB) stars that exhibit remarkable near-infrared (NIR) excess. These stars are surrounded by disks with Keplerian or quasi-Keplerian dynamics and outflows composed of gas escaping from the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::966f9141e0df8c02f74f20fcea6d70e9
http://arxiv.org/abs/2301.06965
http://arxiv.org/abs/2301.06965
Autor:
C. Sanchez Contreras, J. Alcolea, R. Rodriguez Cardoso, V. Bujarrabal, A. Castro-Carrizo, G. Quintana-Lacaci, L. Velilla-Prieto, M. Santander-Garcia
29 pags., 18 figs., 3 tabs. 1 app.
We present a set of Atacama Large Millimeter/submillimeter Array (ALMA) continuum and molecular line emission maps at ~1 mm wavelengths of OH 231.8+4.2. This is a well studied bipolar nebula around an asymptoti
We present a set of Atacama Large Millimeter/submillimeter Array (ALMA) continuum and molecular line emission maps at ~1 mm wavelengths of OH 231.8+4.2. This is a well studied bipolar nebula around an asymptoti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e98a95a351939c185f6c25d7e6fe1ae7
http://hdl.handle.net/10261/305214
http://hdl.handle.net/10261/305214
Autor:
C. Sánchez Contreras, J. Alcolea, R. Rodríguez-Cardoso, V. Bujarrabal, A. Castro-Carrizo, L. Velilla-Prieto, G. Quintana-Lacaci, M. Santander-García, M. Agúndez, J. Cernicharo
Publikováno v:
Proceedings of the International Astronomical Union. 16:301-307
We present interferometric continuum and molecular line emission maps obtained with the Atacama Large Millimeter/submillimeter Array (ALMA) of OH231.8+4.2, a well studied bipolar nebula around an asymptotic giant branch (AGB) star that is key to unde
Context. There is a class of binary post-asymptotic giant branch (post-AGB) stars that exhibit remarkable near-infrared excess. Such stars are surrounded by Keplerian or quasi-Keplerian disks, as well as extended outflows composed of gas escaping fro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b0b3fe496fd090ea1a22eccbc426c34
http://arxiv.org/abs/2202.02106
http://arxiv.org/abs/2202.02106
Autor:
J. Bublitz, J. H. Kastner, P. Hily-Blant, T. Forveille, M. Santander-García, J. Alcolea, V. Bujarrabal
Publikováno v:
Astronomy & Astrophysics. 659:A197
Observations of molecular clouds, prestellar cores, and protoplanetary disks have established that the HNC/HCN ratio may be a potent diagnostic of molecular gas physical conditions. The processes that govern the relative abundances of these molecules
Autor:
J. Kluska, H. Van Winckel, Q. Coppée, G.-M. Oomen, K. Dsilva, D. Kamath, V. Bujarrabal, M. Min
Publikováno v:
Astronomy & Astrophysics. 658:A36
Post-asymptotic giant branch (post-AGB) binaries are surrounded by massive disks of gas and dust that are similar to protoplanetary disks around young stars. We assembled a catalog of all known Galactic post-AGB binaries with disks. We explore the co
Akademický článek
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Publikováno v:
Astronomy & Astrophysics. 633:C1
Autor:
Sarah, Massalkhi, M, Agúndez, J, Cernicharo, L, Velilla Prieto, J R, Goicoechea, G, Quintana-Lacaci, J P, Fonfría, J, Alcolea, V, Bujarrabal
Publikováno v:
Astronomy and astrophysics. 611
Silicon carbide dust is ubiquitous in circumstellar envelopes around C-rich AGB stars. However, the main gas-phase precursors leading to the formation of SiC dust have not yet been identified. The most obvious candidates among the molecules containin
Autor:
V. Bujarrabal, A. Castro-Carrizo, J. Alcolea, H. Van Winckel, C. Sánchez Contreras, M. Santander-García
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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[Aims] We aim to study the presence of both rotation and expansion in post-AGB nebulae, in particular around IW Car, a binary post-AGB star that was suspected to be surrounded by a Keplerian disk.
[Methods] We obtained high-quality ALMA observat
[Methods] We obtained high-quality ALMA observat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88c418903f5172c023dd51981fb7620f
http://hdl.handle.net/10261/188030
http://hdl.handle.net/10261/188030