Zobrazeno 1 - 10
of 15 867
pro vyhledávání: '"Caselli, A"'
Autor:
Gieser, C., Pineda, J. E., Segura-Cox, D. M., Caselli, P., Valdivia-Mena, M. T., Maureira, M. J., Hsieh, T. H., Busch, L. A., Bouscasse, L., Lopez-Sepulcre, A., Neri, R., Kuffmeier, M., Henning, Th., Semenov, D., Cunningham, N., Jimenez-Serra, I.
Context. The formation of stars has been subject to extensive studies in the past decades from molecular cloud to protoplanetary disk scales. It is still not fully understood how the surrounding material in a protostellar system, that often shows asy
Externí odkaz:
http://arxiv.org/abs/2410.18941
Autor:
Chen, Michael Chun-Yuan, Di Francesco, James, Friesen, Rachel K., Pineda, Jaime E., Caselli, Paola, Ginsburg, Adam, Kirk, Helen, Punanova, Anna, Collaboration, the GAS
Observations suggest that filaments in molecular clouds can grow by mass accretion while forming cores via fragmentation. Here we present one of the first large sample studies of filament accretion using velocity gradient measurements of star-forming
Externí odkaz:
http://arxiv.org/abs/2410.16372
Autor:
Xuan, Jerry W., Mérand, A., Thompson, W., Zhang, Y., Lacour, S., Blakely, D., Mawet, D., Oppenheimer, R., Kammerer, J., Batygin, K., Sanghi, A., Wang, J., Ruffio, J. -B., Liu, M. C., Knutson, H., Brandner, W., Burgasser, A., Rickman, E., Bowens-Rubin, R., Salama, M., Balmer, W., Blunt, S., Bourdarot, G., Caselli, P., Chauvin, G., Davies, R., Drescher, A., Eckart, A., Eisenhauer, F., Fabricius, M., Feuchtgruber, H., Finger, G., Schreiber, N. M. Förster, Garcia, P., Genzel, R., Gillessen, S., Grant, S., Hartl, M., Haußmann, F., Henning, T., Hinkley, S., Hönig, S. F., Horrobin, M., Houllé, M., Janson, M., Kervella, P., Kral, Q., Kreidberg, L., Bouquin, J. -B. Le, Lutz, D., Mang, F., Marleau, G. -D., Millour, F., More, N., Nowak, M., Ott, T., Otten, G., Paumard, T., Rabien, S., Rau, C., Ribeiro, D. C., Bordoni, M. Sadun, Sauter, J., Shangguan, J., Shimizu, T. T., Sykes, C., Soulain, A., Spezzano, S., Straubmeier, C., Stolker, T., Sturm, E., Subroweit, M., Tacconi, L. J., van Dishoeck, E. F., Vigan, A., Widmann, F., Wieprecht, E., Winterhalder, T. O., Woillez, J.
Owing to their similarities with giant exoplanets, brown dwarf companions of stars provide insights into the fundamental processes of planet formation and evolution. From their orbits, several brown dwarf companions are found to be more massive than
Externí odkaz:
http://arxiv.org/abs/2410.11953
Moving-mesh non-ideal magnetohydrodynamical simulations of the collapse of cloud cores to protostars
Autor:
Mayer, Alexander C., Zier, Oliver, Naab, Thorsten, Pakmor, Rüdiger, Caselli, Paola, Ivlev, Alexei V., Springel, Volker, Walch, Stefanie
Magnetic fields have been shown both observationally and through theoretical work to be an important factor in the formation of protostars and their accretion disks. Accurate modelling of the evolution of the magnetic field in low-ionization molecula
Externí odkaz:
http://arxiv.org/abs/2410.07016
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:
Fontani, F., Vermariën, G., Viti, S., Gigli, D., Colzi, L., Beltrán, M. T., Caselli, P., Rivilla, V. M., Á, Sánchez-Monge
Single-dish observations suggest that the abundances of organic species in star-forming regions of the outer Galaxy, characterised by sub-Solar metallicities, are comparable to those found in the local Galaxy. To understand this counter-intuitive res
Externí odkaz:
http://arxiv.org/abs/2409.07243
Autor:
Muti, Arianna, Ruggeri, Federico, Al-Khatib, Khalid, Barrón-Cedeño, Alberto, Caselli, Tommaso
We propose misogyny detection as an Argumentative Reasoning task and we investigate the capacity of large language models (LLMs) to understand the implicit reasoning used to convey misogyny in both Italian and English. The central aim is to generate
Externí odkaz:
http://arxiv.org/abs/2409.02519
Autor:
Pineda, Jaime E., Soler, Juan D., Offner, Stella, Koch, Eric W., Segura-Cox, Dominique M., Neri, Roberto, Kuffmeier, Michael, Ivlev, Alexei V., Valdivia-Mena, Maria Teresa, Sipilä, Olli, Maureira, Maria Jose, Caselli, Paola, Cunningham, Nichol, Schmiedeke, Anika, Gieser, Caroline, Chen, Michael, Spezzano, Silvia
Publikováno v:
A&A 690, L5 (2024)
Context. Turbulence is a key component of molecular cloud structure. It is usually described by a cascade of energy down to the dissipation scale. The power spectrum for subsonic incompressible turbulence is $k^{-5/3}$, while for supersonic turbulenc
Externí odkaz:
http://arxiv.org/abs/2409.00392
Publikováno v:
A&A 690, A280 (2024)
We investigated the effect of time-dependent ice growth on dust grains on the opacity and hence on the dust temperature in a collapsing molecular cloud core, with the aim of quantifying the effect of the dust temperature variations on ice abundances
Externí odkaz:
http://arxiv.org/abs/2408.17202
Autor:
Chahine, Layal, Ceccarelli, Cecilia, De Simone, Marta, Chandler, Claire J., Codella, Claudio, Podio, Linda, López-Sepulcre, Ana, Svoboda, Brian, Sabatini, Giovanni, Sakai, Nami, Loinard, Laurent, Vastel, Charlotte, Balucani, Nadia, Rimola, Albert, Ugliengo, Piero, Aikawa, Yuri, Bianchi, Eleonora, Bouvier, Mathilde, Caselli, Paola, Charnley, Steven, Cuello, Nicolás, Hanawa, Tomoyuki, Johnstone, Doug, Maureira, Maria José, Ménard, Francois, Shirley, Yancy, Testi, Leonardo, Yamamoto, Satoshi
Molecular deuteration is a powerful diagnostic tool for probing the physical conditions and chemical processes in astrophysical environments. In this work, we focus on formaldehyde deuteration in the protobinary system NGC\,1333 IRAS\,4A, located in
Externí odkaz:
http://arxiv.org/abs/2408.15517