Zobrazeno 1 - 10
of 309
pro vyhledávání: '"Dent, W. R. F."'
Emission lines from Rydberg transitions are detected for the first time from a region close to the surface of Betelgeuse. The H30${\alpha}$ line is observed at 231.905 GHz, with a FWHM ~42 km/s and extended wings. A second line at 232.025 GHz (FWHM ~
Externí odkaz:
http://arxiv.org/abs/2404.06501
Autor:
Milli, J., Hibon, P., Christiaens, V., Choquet, É., Bonnefoy, M., Kennedy, G. M., Wyatt, M. C., Absil, O., Gómez González, C. A., del Burgo, C., Matrà, L., Augereau, J.-C., Boccaletti, A., Delacroix, C., Ertel, S., Dent, W. R. F., Forsberg, P., Fusco, T., Girard, J. H., Habraken, S., Huby, E., Karlsson, M., Lagrange, A.-M., Mawet, D., Mouillet, D., Perrin, M., Pinte, C., Pueyo, L., Reyes, C., Soummer, R., Surdej, J., Tarricq, Y., Wahhaj, Z.
Aims. Uncovering the ingredients and the architecture of planetary systems is a very active field of research that has fuelled many new theories on giant planet formation, migration, composition, and interaction with the circumstellar environment. We
Externí odkaz:
http://hdl.handle.net/10150/622878
http://arizona.openrepository.com/arizona/handle/10150/622878
http://arizona.openrepository.com/arizona/handle/10150/622878
Autor:
Ribas, Á., Macías, E., Weber, P., Pérez, S., Cuello, N., Dong, R., Aguayo, A., Cáceres, C., Carpenter, J., Dent, W. R. F., de Gregorio-Monsalvo, I., Duchêne, G., Espaillat, C. C., Riviere-Marichalar, P., Villenave, M.
Publikováno v:
A&A 673, A77 (2023)
We present ALMA multiwavelength observations of the protoplanetary disk around the nearby (d$\sim$100 pc) young solar analog MP Mus (PDS 66). These observations at 0.89 mm, 1.3 mm, and 2.2 mm have angular resolutions of $\sim$ 1", 0.05", and 0.25", r
Externí odkaz:
http://arxiv.org/abs/2302.11592
Autor:
Marino, S., Matrà, L., Stark, C., Wyatt, M. C., Casassus, S., Kennedy, G., Rodriguez, D., Zuckerman, B., Perez, S., Dent, W. R. F., Kuchner, M., Hughes, A. M., Schneider, G., Steele, A., Roberge, A., Donaldson, J., Nesvold, E.
An increasing number of observations have shown that gaseous debris discs are not an exception. However, until now, we only knew of cases around A stars. Here we present the first detection of (CO)-C-12 (2-1) disc emission around an F star, HD 181327
Externí odkaz:
http://hdl.handle.net/10150/621723
http://arizona.openrepository.com/arizona/handle/10150/621723
http://arizona.openrepository.com/arizona/handle/10150/621723
Autor:
Villenave, M., Stapelfeldt, K. R., Duchene, G., Menard, F., Lambrechts, M., Sierra, A., Flores, C., Dent, W. R. F., Wolff, S., Ribas, A., Benisty, M., Cuello, N., Pinte, C.
High dust density in the midplane of protoplanetary disks is favorable for efficient grain growth and can allow fast formation of planetesimals and planets, before disks dissipate. Vertical settling and dust trapping in pressure maxima are two mechan
Externí odkaz:
http://arxiv.org/abs/2204.00640
Autor:
Villenave, M., Menard, F., Dent, W. R. F., Benisty, M., van der Plas, G., Williams, J. P., Ansdell, M., Ribas, A., Caceres, C., Canovas, H., Cieza, L., Hales, A., Kamp, I., Pinte, C., Principe, D. A., Schreiber, M. R.
Publikováno v:
A&A 653, A46 (2021)
Context. Characterizing the evolution of protoplanetary disks is necessary to improve our understanding of planet formation. Constraints on both dust and gas are needed to determine the dominant disk dissipation mechanisms. Aims. We aim to compare th
Externí odkaz:
http://arxiv.org/abs/2106.13847
Autor:
Villenave, M., Menard, F., Dent, W. R. F., Duchene, G., Stapelfeldt, K. R., Benisty, M., Boehler, Y., van der Plas, G., Pinte, C., Telkamp, Z., Wolff, S., Flores, C., Lesur, G., Louvet, F., Riols, A., Dougados, C., Williams, H., Padgett, D.
Publikováno v:
A&A 642, A164 (2020)
We analyze a sample of 12 HST-selected edge-on protoplanetary disks for which the vertical extent of the emission layers can be constrained directly. We present ALMA high angular resolution continuum images (0.1arcsec) of these disks at two wavelengt
Externí odkaz:
http://arxiv.org/abs/2008.06518
Autor:
Pinte, C., Price, D. J., Menard, F., Duchene, G., Christiaens, V., Andrews, S. M., Huang, J., Hill, T., van der Plas, G., Perez, L. M., Isella, A., Boehler, Y., Dent, W. R. F., Mentiplay, D., Loomis, R. A.
We present evidence for localised deviations from Keplerian rotation, i.e., velocity "kinks", in 8 of 18 circumstellar disks observed by the DSHARP program: DoAr 25, Elias 2-27, GW Lup, HD 143006, HD 163296, IM Lup, Sz 129 and WaOph 6. Most of the ki
Externí odkaz:
http://arxiv.org/abs/2001.07720
Autor:
Villenave, M., Benisty, M., Dent, W. R. F., Menard, F., Garufi, A., Ginski, C., Pinilla, P., Pinte, C., Williams, J. P., de Boer, J., Morino, J. -I., Fukagawa, M., Dominik, C., Flock, M., Henning, T., Juhasz, A., Keppler, M., Muro-Arena, G., Olofsson, J., Perez, L. M., van der Plas, G., Zurlo, A., Carle, M., Feautrier, P., Pavlov, A., Pragt, J., Ramos, J., Sauvage, J. -F., Stadler, E., Weber, L.
Publikováno v:
A&A 624, A7 (2019)
Context. The mechanisms governing the opening of cavities in transition disks are not fully understood. Several processes have been proposed but their occurrence rate is still unknown. Aims. We present spatially resolved observations of two transitio
Externí odkaz:
http://arxiv.org/abs/1902.04612
Autor:
Dent, W. R. F., Pinte, C., Cortes, P. C., Ménard, F., Hales, A., Fomalont, E., de Gregorio-Monsalvo, I.
We present ALMA images of the sub-mm continuum polarisation and spectral index of the protoplanetary ringed disk HD163296. The polarisation fraction at 870{\mu}m is measured to be ~0.9% in the central core and generally increases with radius along th
Externí odkaz:
http://arxiv.org/abs/1809.09185