Zobrazeno 1 - 10
of 347
pro vyhledávání: '"A. Almaida"'
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
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:
Rivière-Marichalar, Pablo, Macías, Enrique, Baruteau, Clément, Fuente, Asunción, Neri, Roberto, Ribas, Álvaro, Esplugues, Gisela, Navarro-Almaida, David, Osorio, Mayra, Anglada, Guillem
Observational constraints on dust properties in protoplanetary disks are key to better understanding disks' evolution. We continue our exploration of the protoplanetary disk around AB Aur by characterizing its dust properties. We present ALMA observa
Externí odkaz:
http://arxiv.org/abs/2312.12968
Autor:
Kramer, C., Adam, R., Ade, P., Ajeddig, H., Andre, P., Artis, E., Aussel, H., Beelen, A., Beno, A., Berta, S., Bing, L., Bourrion, O., Calvo, M., Caselli, P., Catalano, A., DePetris, M., Desert, F. -X., Doyle, S., Driessen, E. F. C., Ejlali, G., Fuente, A., Gomez, A., Goupy, J., Hanser, C., Katsioli, S., Keruzore, F., Ladjelate, B., Lagache, G., Leclercq, S., Lestrade, J. F., Macias-Perez, J. F., Madden, S. C., Maury, A., Mauskopf, P., Mayet, F., Monfardini, A., Moyer-Anin, A., Munoz-Echeverria, M., Navarro-Almaida, D., Perotto, L., Pisano, G., Ponthieu, N., Reveret, V., Rigby, A. J., Ritacco, A., Romero, C., Roussel, H., Ruppin, F., Schuster, K., Sievers, A., Tucker, C., Zylka, R.
Publikováno v:
EPJ Web of conferences 293 (2024) 00027
Dusty starless cores play an important role in regulating the initial phases of the formation of stars and planets. In their interiors, dust grains coagulate and ice mantles form, thereby changing the millimeter emissivities and hence the ability to
Externí odkaz:
http://arxiv.org/abs/2310.01044
Autor:
Esplugues, G., Rodríguez-Baras, M., Andrés, D. San, Navarro-Almaida, D., Fuente, A., Rivière-Marichalar, P., Sánchez-Monge, Á., Drozdovskaya, M. N., Spezzano, S., Caselli, P.
Publikováno v:
A&A 678, A199 (2023)
Within the project Evolution of Chemistry in the envelope of HOt corinoS (ECHOS), we present a study of sulphur chemistry in the envelope of the Class 0 source B335 through observations in the spectral range 7, 3, and 2 mm. We have modelled observati
Externí odkaz:
http://arxiv.org/abs/2309.01713
Autor:
Rodríguez-Baras, Marina, Esplugues, Gisela, Fuente, Asunción, Spezzano, Silvia, Caselli, Paola, Loison, Jean-Christophe, Roueff, Evelyne, Navarro-Almaida, David, Bachiller, Rafael, Martín-Doménech, Rafael, Jiménez-Serra, Izaskun, Beitia-Antero, Leire, Gal, Romane Le
H2S is thought to be the main sulphur reservoir in the ice, being therefore a key molecule to understand sulphur chemistry in the star formation process and to solve the missing sulphur problem. The H2S deuterium fraction can be used to constrain its
Externí odkaz:
http://arxiv.org/abs/2309.00318
Autor:
Rocha, Carlos M. R., Roncero, Octavio, Bulut, Niyazi, Zuchowski, Piotr, Navarro-Almaida, David, Fuente, Asuncion, Wakelam, Valentine, Loison, Jean-Christophe, Roueff, Evelyne, Goicoechea, Javier R., Esplugues, Gisela, Beitia-Antero, Leire, Caselli, Paola, Lattanzi, Valerio, Pineda, Jaime, Gal, Romane Le, Rodriguez-Baras, Marina, Riviere-Marichalar, Pablo
Publikováno v:
A&A 677, A41 (2023)
We revise the rates of reactions CH + S -> CS + H and C_2 + S -> CS + C, important CS formation routes in dark and diffuse warm gas. We performed ab initio calculations to characterize the main features of all the electronic states correlating to the
Externí odkaz:
http://arxiv.org/abs/2307.00311
Publikováno v:
Indonesian Journal of Biotechnology, Vol 20, Iss 1, Pp 11-18 (2015)
Induction of mutation using gamma rays for improving of Mira-1 rice variety has been conducted. Rice mutant lines M2 generation have been obtained from mutation by the doses of 25, 50, 75, 100, 150 and 200 Gy of gamma rays. Selection of mutant lines
Externí odkaz:
https://doaj.org/article/af9a7a68d7e9418b901f5b32fa9c7ca9
Autor:
Navarro-Almaida, D., Bop, C. T., Lique, F., Esplugues, G., Rodríguez-Baras, M., Kramer, C., Romero, C. E., Fuente, A., Caselli, P., Riviére-Marichalar, P., Kirk, J. M., Chacón-Tanarro, A., Roueff, E., Mroczkowski, T., Bhandarkar, T., Devlin, M., Dicker, S., Lowe, I., Mason, B., Sarazin, C. L., Sievers, J.
Publikováno v:
A&A 670, A110 (2023)
HCN, HNC, and their isotopologues are ubiquitous molecules that can serve as chemical thermometers and evolutionary tracers to characterize star-forming regions. Despite their importance in carrying information that is vital to studies of the chemist
Externí odkaz:
http://arxiv.org/abs/2212.07675