Zobrazeno 1 - 10
of 1 568
pro vyhledávání: '"Smoker, A."'
The present work aims to study the cavitating turbulent flow of a full-scale marine propeller and explore the physical mechanism underpinning the underwater radiated noise. We employ the standard dynamic large eddy simulation for the turbulent wake f
Externí odkaz:
http://arxiv.org/abs/2405.15133
Autor:
Frost, A. J., Sana, H., Mahy, L., Wade, G., Barron, J., Bouquin, J. -B. Le, Mérand, A., Schneider, F. R. N., Shenar, T., Barbá, R. H., Bowman, D. M., Fabry, M., Farhang, A., Marchant, P., Morrell, N. I., Smoker, J. V.
Publikováno v:
Science, 11 Apr 2024, Vol 384, Issue 6692, pp. 214-217
Massive stars (those larger than 8 solar masses at formation) have radiative envelopes that cannot sustain a dynamo, the mechanism that produces magnetic fields in lower-mass stars. Despite this, approximately 7\% of massive stars have observed magne
Externí odkaz:
http://arxiv.org/abs/2404.10167
Autor:
Ebenbichler, A., Smoker, J. V., Lallement, R., Farhang, A., Cox, N. L. J., Joblin, C., van Loon, J. Th., Linnartz, H., Przybilla, N., Ehrenfreund, P., Cami, J., Cordiner, M.
Context: There have been many attempts to identify families of diffuse interstellar bands (DIBs) with perfectly correlating band strengths. Although major efforts have been made to classify broadly based DIB families and important insights have been
Externí odkaz:
http://arxiv.org/abs/2403.00547
Autor:
Fan, Haoyu, Rocha, Carlos M. R., Cordiner, Martin, Linnartz, Harold, Cox, Nick L. J., Farhang, Amin, Smoker, Jonathan, Roueff, Evelyne, Ehrenfreund, Pascale, Salama, Farid, Foing, Bernard H., Lallement, Rosine, MacIsaac, Heather, Kulik, Klay, Sarre, Peter, van Loon, Jacco Th., Cami, Jan
Publikováno v:
A&A 681, A6 (2024)
We carried out a sensitive survey of C$_2$ and C$_3$ using the EDIBLES data set. We also expanded our searches to C$_4$, C$_5$, and $^{13}$C$^{12}$C isotopologue in the most molecule-rich sightlines. We fit synthetic spectra generated following a phy
Externí odkaz:
http://arxiv.org/abs/2310.03259
Autor:
Farhang, Amin, Smoker, Jonathan, Cox, Nick L. J., Cami, Jan, Linnartz, Harold, van Loon, Jacco Th., Cordiner, Martin A., Sarre, Peter J., Khosroshahi, Habib G., Ehrenfreund, Pascale, Foing, Bernard H., Kaper, Lex, Laverick, Mike
Publikováno v:
A&A 678, A148 (2023)
Interstellar lines observed toward stellar targets change slowly over long timescales, mainly due to the proper motion of the background target relative to the intervening clouds. On longer timescales, the cloud's slowly changing physical and chemica
Externí odkaz:
http://arxiv.org/abs/2308.14027
Publikováno v:
A&A 676, A132 (2023)
The nature of dust in the diffuse interstellar medium can be best investigated by means of reddening curves where only a single interstellar cloud lies between the observer and the background source. Published reddening curves often suffer from vario
Externí odkaz:
http://arxiv.org/abs/2307.00367
Autor:
De Rosa, Robert J., Otarola, Angel, Szeifert, Thomas, Smoker, Jonathan, Selman, Fernando, Mehner, Andrea, Bian, Fuyan, Sedaghati, Elyar, Seidel, Julia V., Smette, Alain, de Wit, Willem-Jan
The Hunga Tonga-Hunga Ha'apai volcano erupted on 15 January 2022 with an energy equivalent to around 61 megatons of TNT. The explosion was bigger than any other volcanic eruption so far in the 21st century. Huge quantities of particles, including dus
Externí odkaz:
http://arxiv.org/abs/2305.08620
Determination of small-scale magnetic fields on Sun-like stars in the near-infrared using CRIRES$^+$
Autor:
Hahlin, A., Kochukhov, O., Rains, A. D., Lavail, A., Hatzes, A., Piskunov, N., Reiners, A., Seemann, U., Boldt-Christmas, L., Guenther, E. W., Heiter, U., Nortmann, L., Yan, F., Shulyak, D., Smoker, J. V., Rodler, F., Bristow, P., Dorn, R. J., Jung, Y., Marquart, T., Stempels, E.
Publikováno v:
A&A 675, A91 (2023)
We aim to characterise the small-scale magnetic fields for a sample of 16 Sun-like stars and investigate the capabilities of the newly upgraded near-infrared (NIR) instrument CRIRES$^+$ at the VLT in the context of small-scale magnetic field studies.
Externí odkaz:
http://arxiv.org/abs/2305.06873
Autor:
Yan, F., Nortmann, L., Reiners, A., Piskunov, N., Hatzes, A., Seemann, U., Shulyak, D., Lavail, A., Rains, A. D., Cont, D., Rengel, M., Lesjak, F., Nagel, E., Kochukhov, O., Czesla, S., Boldt-Christmas, L., Heiter, U., Smoker, J. V., Rodler, F., Bristow, P., Dorn, R. J., Jung, Y., Marquart, T., Stempels, E.
Publikováno v:
A&A 672, A107 (2023)
The dayside atmospheres of ultra-hot Jupiters (UHJs) are predicted to possess temperature inversion layers with extremely high temperatures at high altitudes. We observed the dayside thermal emission spectra of WASP-18b and WASP-76b with the new CRIR
Externí odkaz:
http://arxiv.org/abs/2302.08736
Autor:
Dorn, R. J., Bristow, P., Smoker, J. V., Rodler, F., Lavail, A., Accardo, M., Ancker, M. van den, Baade, D., Baruffolo, A., Courtney-Barrer, B., Blanco, L., Brucalassi, A., Cumani, C., Follert, R., Haimerl, A., Hatzes, A., Haug, M., Heiter, U., Hinterschuster, R., Hubin, N., Ives, D. J., Jung, Y., Jones, M., Kirchbauer, J-P., Klein, B., Kochukhov, O., Korhonen, H. H., Köhler, J., Lizon, J-L., Moins, C., Molina-Conde, I., Marquart, T., Neeser, M., Oliva, E., Pallanca, L., Pasquini, L., Paufique, J., Piskunov, N., Reiners, A., Schneller, D., Schmutzer, R., Seemann, U., Slumstrup, D., Smette, A., Stegmeier, J., Stempels, E., Tordo, S., Valenti, E., Valenzuela, J. J., Vernet, J., Vinther, J., Wehrhahn, A.
Publikováno v:
A&A 671, A24 (2023)
The CRyogenic InfraRed Echelle Spectrograph (CRIRES) Upgrade project CRIRES$^{+}$ extended the capabilities of CRIRES. It transformed this VLT instrument into a cross-dispersed spectrograph to increase the wavelength range that is covered simultaneou
Externí odkaz:
http://arxiv.org/abs/2301.08048