Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Massalkhi, S."'
Publikováno v:
A&A 688, A16 (2024)
The spatial distribution of molecules in AGB circumstellar envelopes is regulated by different processes. In the outer layers all molecules are destroyed due to the interaction with interstellar ultraviolet photons. Here we aim to characterize in a c
Externí odkaz:
http://arxiv.org/abs/2405.19922
Autor:
Massalkhi, S., Jiménez-Serra, I., Martín-Pintado, J., Rivilla, V. M., Colzi, L., Zeng, S., Martín, S., Tercero, B., de Vicente, P., Requena-Torres, M. A.
Publikováno v:
A&A 678, A45 (2023)
We report the first detection of SiC$_2$ in the interstellar medium. The molecule was identified through six rotational transitions toward G\,+0.693$-$0.027, a molecular cloud located in the Galactic center. The detection is based on a line survey ca
Externí odkaz:
http://arxiv.org/abs/2308.09459
Autor:
Fonfría, J. P., Montiel, E. J., Cernicharo, J., DeWitt, C. N., Richter, M. J., Lacy, J. H., Greathouse, T. K., Santander-García, M., Agúndez, M., Massalkhi, S.
Publikováno v:
A&A 651, A8 (2021)
High spectral resolution observations toward the low mass-loss rate C-rich, J-type AGB star Y CVn have been carried out at 7.5, 13.1 and 14.0 um with SOFIA/EXES and IRTF/TEXES. Around 130 HCN and H13CN lines of bands v2, 2v2, 2v2-v2, 3v2-2v2, 3v2-v2,
Externí odkaz:
http://arxiv.org/abs/2105.01411
Publikováno v:
A&A 641, A57 (2020)
Aims: We aim to determine the abundances of SiO, CS, SiS, SO, and SO$_2$ in a large sample of oxygen-rich AGB envelopes covering a wide range of mass loss rates to investigate the potential role that these molecules could play in the formation of dus
Externí odkaz:
http://arxiv.org/abs/2007.00572
Publikováno v:
A&A 628, A62 (2019)
Aim: We aim to determine the abundances of CS, SiO, and SiS in a large sample of carbon star envelopes covering a wide range of mass loss rates to investigate the potential role that these molecules could play in the formation of dust in the surround
Externí odkaz:
http://arxiv.org/abs/1906.09461
Autor:
Massalkhi, S., Agúndez, M., Cernicharo, J., Prieto, L. Velilla, Goicoechea, J. R., Quintana-Lacaci, G., Fonfría, J. P., Alcolea, J., Bujarrabal, V.
Publikováno v:
A&A 611, A29 (2018)
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
Externí odkaz:
http://arxiv.org/abs/1710.11409
Autor:
Quintana-Lacaci, G., Cernicharo, J., Prieto, L. Velilla, Agúndez, M., Castro-Carrizo, A., Fonfría, J. P., Massalkhi, S., Pardo, J. R.
Publikováno v:
A&A 607, L5 (2017)
ALMA is providing us essential information on where certain molecules form. Observing where these molecules emission arises from, the physical conditions of the gas, and how this relates with the presence of other species allows us to understand the
Externí odkaz:
http://arxiv.org/abs/1710.09628
Akademický článek
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Akademický článek
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Autor:
Fonfr��a, J. P., Montiel, E. J., Cernicharo, J., DeWitt, C. N., Richter, M. J., Lacy, J. H., Greathouse, T. K., Santander-Garc��a, M., Ag��ndez, M., Massalkhi, S.
High spectral resolution observations toward the low mass-loss rate C-rich, J-type AGB star Y CVn have been carried out at 7.5, 13.1 and 14.0 um with SOFIA/EXES and IRTF/TEXES. Around 130 HCN and H13CN lines of bands v2, 2v2, 2v2-v2, 3v2-2v2, 3v2-v2,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d94221254dae88cb9c7780863617dfa7
http://arxiv.org/abs/2105.01411
http://arxiv.org/abs/2105.01411