Zobrazeno 1 - 10
of 469
pro vyhledávání: '"Giuliano, A. m."'
Autor:
Schiltz, L., Escribano, B., Caro, G. M. Muñoz, Cazaux, S., Olivares, C. del Burgo, Carrascosa, H., Boszhuizen, I., Díaz, C. González, Chen, Y. -J., Giuliano, B. M., Caselli, P.
The surfaces of icy moons are primarily composed of water ice that can be mixed with other compounds, such as carbon dioxide. The carbon dioxide (CO$_2)$ stretching fundamental band observed on Europa and Ganymede appears to be a combination of sever
Externí odkaz:
http://arxiv.org/abs/2405.10605
Autor:
Kruczkiewicz, F., Dulieu, F., Ivlev, A. V., Caselli, P., Giuliano, B. M., Ceccarelli, C., Theulé, P.
To explain grain growth and destruction in warm media, ice mantle formation and sublimation in cold media, and gas line emission spectroscopy, astrochemical models must mimic the gas--solid abundance ratio. Ice-sublimation mechanisms determine the po
Externí odkaz:
http://arxiv.org/abs/2404.02695
Autor:
Ivlev, Alexei V., Giuliano, Barbara M., Juhász, Zoltán, Herczku, Péter, Sulik, Béla, Mifsud, Duncan V., Kovács, Sándor T. S., Rahul, K. K., Rácz, Richárd, Biri, Sándor, Rajta, István, Vajda, István, Mason, Nigel J., Ioppolo, Sergio, Caselli, Paola
We present a dedicated experimental study of microscopic mechanisms controlling radiolysis and sputtering of astrophysical ices due to their bombardment by cosmic ray ions. Such ions are slowed down due to inelastic collisions with bound electrons, r
Externí odkaz:
http://arxiv.org/abs/2301.09401
Publikováno v:
A&A 668, A46 (2022)
Context. The gas and ice-grain chemistry of the pre-stellar core L1544 has been the subject of several observations and modelling studies conducted in the past years. The chemical composition of the ice mantles reflects the environmental physical cha
Externí odkaz:
http://arxiv.org/abs/2208.07672
Autor:
Gavdush, A. A., Kruczkiewicz, F., Giuliano, B. M., Müller, B., Komandin, G. A., Grassi, T., Theulé, P., Zaytsev, K. I., Ivlev, A. V., Caselli, P.
Publikováno v:
A&A 667, A49 (2022)
Context: Broadband optical constants of astrophysical ice analogues in the infrared (IR) and terahertz (THz) ranges are required for modeling the dust continuum emission and radiative transfer in dense and cold regions, where thick icy mantles are fo
Externí odkaz:
http://arxiv.org/abs/2207.11052
Publikováno v:
A&A 652, A126 (2021)
Context. The molecular composition of interstellar ice mantles is defined by gas-grain processes in molecular clouds, with the main components being $H_2O$, $CO$, and $CO_2$. $CH_3OH$ ice is detected towards the denser regions, where large amounts of
Externí odkaz:
http://arxiv.org/abs/2107.09381
Autor:
Rodríguez-Baras, M., Fuente, A., Riviére-Marichalar, P., Navarro-Almaida, D., Caselli, P., Gerin, M., Kramer, C., Roueff, E., Wakelam, V., Esplugues, G., García-Burillo, S., Gal, R. Le, Spezzano, S., Alonso-Albi, T., Bachiller, R., Cazaux, S., Commercon, B., Goicoechea, J. R., Loison, J. C., Treviño-Morales, S. P., Roncero, O., Jiménez-Serra, I., Laas, J., Hacar, A., Kirk, J., Lattanzi, V., Martín-Doménech, R., Muñoz-Caro, G., Pineda, J. E., Tercero, B., Ward-Thompson, D., Tafalla, M., Marcelino, N., Malinen, J., Friesen, R., Giuliano, B. M.
Publikováno v:
A&A 648, A120 (2021)
Gas phase Elemental abundances in Molecular CloudS (GEMS) is an IRAM 30m Large Program designed to estimate the S, C, N, and O depletions and gas ionization degree, X(e-), in a set of star-forming filaments of Taurus, Perseus and Orion. Our immediate
Externí odkaz:
http://arxiv.org/abs/2102.13153
Autor:
Goto, Miwa, Vasyunin, A. I., Giuliano, B. M., Jiménez-Serra, I., Caselli, P., Román-Zúñiga, C. G., Alves, J.
Publikováno v:
A&A 651, A53 (2021)
Methanol and complex organic molecules have been found in cold starless cores, where a standard warm-up scenario would not work because of the absence of heat sources. A recent chemical model attributed the presence of methanol and large organics to
Externí odkaz:
http://arxiv.org/abs/2012.10883
Autor:
Bulut, N., Roncero, O., Aguado, A., Loison, J. -C., Navarro-Almaida, D., Wakelam, V., Fuente, A., Roueff, E., Gal, R. Le, Caselli, P., Hickson, M. Gerinm K. M., Spezzano, S., Riviere-Marichalar, P., Alonso-Albi, T., Bachiller, R., Jimenez-Serra, I., Kramer, C., Tercero, B., Rodriguez-Baras, M., Garcia-Burillo, S., Goicoechea, J. R., Treviño-Morales, S. P., Esplugues, G., Cazaux, S., Commercon, B., Laas, J., Kirk, J., Lattanzi, V., Martin-Domenech, R., Muñoz-Caro, G., Pineda, J., Ward-Thompson, D., Tafalla, M., Marcelino, N., Malinen, J., Friesen, R., Giuliano, B. M., Agundez, M., Hacar, A.
Publikováno v:
Astronomy & Astrophysics 646, A5 (2021)
CS is among the most abundant gas-phase S-bearing molecules in cold dark molecular clouds. It is easily observable with several transitions in the millimeter wavelength range, and has been widely used as a tracer of the gas density in the interstella
Externí odkaz:
http://arxiv.org/abs/2012.10176
The emergence of life on Earth is a highly discussed but still unsolved question. Current research underlines the importance of environments within close proximity to the Earth's surface as they can solve long-standing problems such as polymerization
Externí odkaz:
http://arxiv.org/abs/2012.02638