Zobrazeno 1 - 10
of 30 313
pro vyhledávání: '"A. Bouvier"'
Autor:
Behrens, Erica, Mangum, Jeffrey G., Viti, Serena, Holdship, Jonathan, Huang, Ko-Yun, Bouvier, Mathilde, Butterworth, Joshua, Eibensteiner, Cosima, Harada, Nanase, Martin, Sergio, Sakamoto, Kazushi, Muller, Sebastien, Tanaka, Kunihiko, Colzi, Laura, Henkel, Christian, Meier, David S., Rivilla, Victor M., van der Werf, Paul P.
We use a neural network model and ALMA observations of HCN and HNC to constrain the physical conditions, most notably the cosmic-ray ionization rate (CRIR, zeta), in the Central Molecular Zone (CMZ) of the starburst galaxy NGC 253. Using output from
Externí odkaz:
http://arxiv.org/abs/2409.13821
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
Autor:
Bouvier, Tomás Fernández, Jantunen, Ville, Vihuri, Saana, Cazalilla, Alvaro López, Djurabekova, Flyura
Quantum information technologies hold immense promise, with quantum computers poised to revolutionize problem-solving capabilities. Among the leading contenders are solid-state spin-qubits, particularly those utilizing the spin of phosphorous donors
Externí odkaz:
http://arxiv.org/abs/2408.07363
Autor:
Zaire, B., Donati, J. -F., Alencar, S. P., Bouvier, J., Moutou, C., Bellotti, S., Carmona, A., Petit, P., Kóspál, Á., Shang, H., Grankin, K., Manara, C., Alecian, E., Gregory, S. P., Fouqué, P., consortium, the SLS
This paper analyses spectropolarimetric observations of the classical T Tauri star (CTTS) GM Aurigae collected with SPIRou, the near-infrared spectropolarimeter at the Canada-France-Hawaii Telescope, as part of the SLS and SPICE Large Programs. We re
Externí odkaz:
http://arxiv.org/abs/2408.05864
Autor:
Wojtczak, J. A., Tessore, B., Labadie, L., Perraut, K., Bouvier, J., Dougados, C., Nowacki, H., Soulain, A., Alécian, E., Pantolmos, G., Ferreira, J., Straubmeier, C., Eckart, A.
Aims: Our aim is to build upon the analysis presented in our previous work by attempting to match the observational data obtained with VLTI GRAVITY for RU Lup in 2021 with an expanded radiative transfer model of Br$\gamma$ emission. Specifically, we
Externí odkaz:
http://arxiv.org/abs/2408.03186
Autor:
GRAVITY Collaboration, Nowacki, H., Perraut, K., Labadie, L., Bouvier, J., Dougados, C., Benisty, M., Wojtczak, J. A., Soulain, A., Alecian, E., Brandner, W., Garatti, A. Caratti o, Lopez, R. Garcia, Ganci, V., Sánchez-Bermúdez, J., Berger, J. -P., Bourdarot, G., Caselli, P., Clénet, Y., Davies, R., Drescher, A., Eckart, A., Eisenhauer, F., Fabricius, M., Feuchtgruber, H., Förster-Schreiber, N. M., Garcia, P., Gendron, E., Genzel, R., Gillessen, S., Grant, S., Henning, T., Jocou, L., Kervella, P., Kurtovic, N., Lacour, S., Lapeyrère, V., Bouquin, J. -B. Le, Lutz, D., Mang, F., Ott, T., Paumard, T., Perrin, G., Rabien, S., Ribeiro, D., Bordoni, M. Sadun, Scheithauer, S., Shangguan, J., Shimizu, T., Spezzano, S., Straubmeier, C., Sturm, E., Tacconi, L., van Dishoeck, E., Vincent, F., Widmann, F.
The dust- and gas-rich protoplanetary disks around young stellar systems play a key role in star and planet formation. While considerable progress has recently been made in probing these disks on large scales of a few tens of astronomical units (au),
Externí odkaz:
http://arxiv.org/abs/2408.02374
In this paper, we develop a method for learning a control policy guaranteed to satisfy an affine state constraint of high relative degree in closed loop with a black-box system. Previous reinforcement learning (RL) approaches to satisfy safety constr
Externí odkaz:
http://arxiv.org/abs/2407.20456
Autor:
Podio, L., Ceccarelli, C., Codella, C., Sabatini, G., Segura-Cox, D., Balucani, N., Rimola, A., Ugliengo, P., Chandler, C. J., Sakai, N., Svoboda, B., Pineda, J., De Simone, M., Bianchi, E., Caselli, P., Isella, A., Aikawa, Y., Bouvier, M., Caux, E., Chahine, L., Charnley, S. B., Cuello, N., Dulieu, F., Evans, L., Fedele, D., Feng, S., Fontani, F., Hama, T., Hanawa, T., Herbst, E., Hirota, T., Jiménez-Serra, I., Johnstone, D., Lefloch, B., Gal, R. Le, Loinard, L., Liu, H. Baobab, López-Sepulcre, A., Maud, L. T., Maureira, M. J., Menard, F., Miotello, A., Moellenbrock, G., Nomura, H., Oba, Y., Ohashi, S., Okoda, Y., Oya, Y., Sakai, T., Shirley, Y., Testi, L., Vastel, C., Viti, S., Watanabe, N., Watanabe, Y., Zhang, Y., Zhang, Z. E., Yamamoto, S.
Publikováno v:
A&A 688, L22 (2024)
Recent observations suggest that planets formation starts early, in protostellar disks of $\le10^5$ yrs, which are characterized by strong interactions with the environment, e.g., through accretion streamers and molecular outflows. To investigate the
Externí odkaz:
http://arxiv.org/abs/2407.04813
Context. Both the stellar activity and the accretion processes of young stellar objects can induce variations in their radial velocity (RV). This variation is often modulated on the stellar rotation period and may hide a RV signal from a planetary or
Externí odkaz:
http://arxiv.org/abs/2406.17671
Autor:
Bouvier, Thomas, Nicolae, Bogdan, Chaugier, Hugo, Costan, Alexandru, Foster, Ian, Antoniu, Gabriel
Deep learning has emerged as a powerful method for extracting valuable information from large volumes of data. However, when new training data arrives continuously (i.e., is not fully available from the beginning), incremental training suffers from c
Externí odkaz:
http://arxiv.org/abs/2406.03285