Zobrazeno 1 - 10
of 522
pro vyhledávání: '"WakelaM, V."'
Autor:
Beitia-Antero, L., Fuente, A., Navarro-Almaida, D., de Castro, A. I. Gómez, Wakelam, V., Caselli, P., Gal, R. Le, Esplugues, G., Rivière-Marichalar, P., Spezzano, S., Pineda, J. E., Rodríguez-Baras, M., Canet, A., Martín-Doménech, R., Roncero, O.
Publikováno v:
Astronomy & Astrophysics 2024, Volume 688, id.A188, 17 pp
(Abridged) We explore the chemistry of the most abundant C, O, S, and N bearing species in molecular clouds, in the context of the IRAM 30 m Large Programme Gas phase Elemental abundances in Molecular Clouds (GEMS). In this work, we aim to assess the
Externí odkaz:
http://arxiv.org/abs/2410.04226
The study of the chemical composition of the interstellar medium (ISM) requires a strong synergy between laboratory astrophysics, modeling, and observations. In particular, astrochemical models have been developed for decades now and include an incre
Externí odkaz:
http://arxiv.org/abs/2407.15958
Autor:
Ramos, A. Asensio, Plaza, C. Westendorp, Navarro-Almaida, D., Rivière-Marichalar, P., Wakelam, V., Fuente, A.
Astrochemical models are important tools to interpret observations of molecular and atomic species in different environments. However, these models are time-consuming, precluding a thorough exploration of the parameter space, leading to uncertainties
Externí odkaz:
http://arxiv.org/abs/2406.02387
Autor:
Navarro-Almaida, D., Lebreuilly, U., Hennebelle, P., Fuente, A., Commerçon, B., Gal, R. Le, Wakelam, V., Gerin, M., Riviére-Marichalar, P., Beitia-Antero, L., Ascasibar, Y.
The first hydrostatic core (FHSC) phase is a brief stage in the protostellar evolution that is difficult to detect. Our goal is to characterize the chemical evolution of gas and dust during the formation of the FHSC. Moreover, we are interested in an
Externí odkaz:
http://arxiv.org/abs/2403.01905
Autor:
Silva, W. G. D. P., Cernicharo, J., Schlemmer, S., Marcelino, N., Loison, J. -C., Agúndez, M., Gupta, D., Wakelam, V., Thorwirth, S., Cabezas, C., Tercero, B., Doménech, J. L., Fuentetaja, R., Kim, W. -J., de Vicente, P., Asvany, O.
Based on a novel laboratory method, 14 mm-wave lines of the molecular ion H$_2$CCCH$^+$ have been measured in high resolution, and the spectroscopic constants of this asymmetric rotor determined with high accuracy. Using the Yebes 40 m and IRAM 30 m
Externí odkaz:
http://arxiv.org/abs/2307.01733
Autor:
Clément, A., Taillard, A., Wakelam, V., Gratier, P., Loison, J. -C., Dartois, E., Dulieu, F., Noble, J. A., Chabot, M.
Ice is ubiquitous in the interstellar medium. We model the formation of the main constituents of interstellar ices, including H2O, CO2 , CO, and CH3 OH. We strive to understand what physical or chemical parameters influence the final composition of t
Externí odkaz:
http://arxiv.org/abs/2306.08346
Detection of ethanol, acetone, and propanal in TMC-1: New O-bearing complex organics in cold sources
Autor:
Agundez, M., Loison, J. C., Hickson, K. M., Wakelam, V., Fuentetaja, R., Cabezas, C., Marcelino, N., Tercero, B., de Vicente, P., Cernicharo, J.
Publikováno v:
A&A 673, A34 (2023)
We present the detection of ethanol (C2H5OH), acetone (CH3COCH3), and propanal (C2H5CHO) toward the cyanopolyyne peak of TMC-1. These three O-bearing complex organic molecules are known to be present in warm interstellar clouds, but had never been ob
Externí odkaz:
http://arxiv.org/abs/2303.16121
Autor:
Taillard, A., WakelaM, V., Gratier, P., Dartois, E., Chabot, M., Noble, J. A., Keane, J. V., Boogert, A. C. A., Harsono, D.
Cold cores are an early step of star formation, characterized by densities > 10$^4$ cm$^{-3}$, low temperatures (< 15 K), and very low external UV radiation. We investigate the physico-chemical processes at play to tracing the origin of molecules tha
Externí odkaz:
http://arxiv.org/abs/2301.01288
Autor:
Fuente, A., Rivière-Marichalar, P., Beitia-Antero, L., Caselli, P., Wakelam, V., Esplugues, G., Rodríguez-Baras, M., Navarro-Almaida, D., Gerin, M., Kramer, C., Bachiller, R., Goicoechea, J. R., Jiménez-Serra, I., Loison, J. C., Ivlev, A., Martín-Doménech, R., Spezzano, S., Roncero, O., Muñoz-Caro, G., Cazaux, S., Marcelino, N.
Publikováno v:
A&A 670, A114 (2023)
Gas phase Elemental abundances in molecular CloudS (GEMS) is an IRAM 30m large program aimed at determining the elemental abundances of carbon (C), oxygen (O), nitrogen (N), and sulfur (S) in a selected set of prototypical star-forming filaments. In
Externí odkaz:
http://arxiv.org/abs/2212.03742
The observational counterparts of theoretically predicted first hydrostatic cores (FHSC) have been searched for in the interstellar medium for nearly two decades now. Distinguishing them from other types of more evolved but still embedded objects rem
Externí odkaz:
http://arxiv.org/abs/2208.13606