Zobrazeno 1 - 10
of 221
pro vyhledávání: '"Charnley, S. B."'
Autor:
Cordiner, M. A., Darnell, K., Bockeleé-Morvan, D., Roth, N. X., Biver, N., Milam, S. N., Charnley, S. B., Boissier, J., Bonev, B. P., Qi, C., Crovisier, J., Remijan, A. J.
46P/Wirtanen is a Jupiter-family comet, probably originating from the Solar System's Kuiper belt, that now resides on a 5.4 year elliptical orbit. During its 2018 apparition, comet 46P passed unusually close to the Earth (within 0.08 au), presenting
Externí odkaz:
http://arxiv.org/abs/2409.05711
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
Autor:
Cordiner, M. A., Thelen, A. E., Lai, I. -L., Tseng, W. -L., Nixon, C. A., Kuan, Y. -J., Villanueva, G. L., Paganini, L., Charnley, S. B., Retherford, K. D.
The subsurface ocean of Europa is a high priority target in the search for extraterrestrial life, but direct investigations are hindered by the presence of a thick, exterior ice shell. Here we present spectral line and continuum maps of Europa obtain
Externí odkaz:
http://arxiv.org/abs/2404.05525
Autor:
Thelen, A. E., Nixon, C. A., Cosentino, R., Cordiner, M. A., Teanby, N. A., Newman, C. E., Irwin, P. G. J., Charnley, S. B.
The temperature structure of Titan's upper atmosphere exhibits large variability resulting from numerous spatially and temporally irregular external energy sources, seasonal changes, and the influence of molecular species produced via photochemistry.
Externí odkaz:
http://arxiv.org/abs/2402.01957
Autor:
Unnikrishnan, R., De Beck, E., Nyman, L. A., Olofsson, H., Vlemmings, W. H. T., Tafoya, D., Maercker, M., Charnley, S. B., Cordiner, M. A., de Gregorio, I., Humphreys, E., Millar, T. J., Rawlings, M. G.
AGB stars are major contributors to the chemical enrichment of the ISM through nucleosynthesis and extensive mass loss. Most of our current knowledge of AGB atmospheric and circumstellar chemistry, in particular in a C-rich environment, is based on o
Externí odkaz:
http://arxiv.org/abs/2312.10014
Autor:
Perotti, G., Jørgensen, J. K., Rocha, W. R. M., Plunkett, A., de la Villarmois, E. Artur, Kristensen, L. E., Sewiło, M., Bjerkeli, P., Fraser, H. J., Charnley, S. B.
Publikováno v:
A&A 678, A78 (2023)
During the journey from the cloud to the disc, the chemical composition of the protostellar envelope material can be either preserved or processed to varying degrees depending on the surrounding physical environment. This works aims to constrain the
Externí odkaz:
http://arxiv.org/abs/2308.13598
Autor:
Cordiner, M. A., Roth, N. X., Milam, S. N., Villanueva, G., Bockelee-Morvan, D., Remijan, A. J., Charnley, S. B., Biver, N., Lis, D. C., Qi, C., Bonev, B., Crovisier, J., Boissier, J.
Gas-phase molecules in cometary atmospheres (comae) originate primarily from (1) outgassing by the nucleus, (2) sublimation of icy grains in the near-nucleus coma, and (3) coma (photo-)chemical processes. However, the majority of cometary gases obser
Externí odkaz:
http://arxiv.org/abs/2305.04822
Autor:
McClure, M. K., Rocha, W. R. M., Pontoppidan, K. M., Crouzet, N., Chu, L. E. U., Dartois, E., Lamberts, T., Noble, J. A., Pendleton, Y. J., Perotti, G., Qasim, D., Rachid, M. G., Smith, Z. L., Sun, Fengwu, Beck, Tracy L, Boogert, A. C. A., Brown, W. A., Caselli, P., Charnley, S. B., Cuppen, Herma M., Dickinson, H., Drozdovskaya, M. N., Egami, E., Erkal, J., Fraser, H., Garrod, R. T., Harsono, D., Ioppolo, S., Jimenez-Serra, I., Jin, M., Jørgensen, J. K., Kristensen, L. E., Lis, D. C., McCoustra, M. R. S., McGuire, Brett A., Melnick, G. J., Oberg, Karin I., Palumbo, M. E., Shimonishi, T., Sturm, J. A., van Dishoeck, E. F., Linnartz, H.
Icy grain mantles are the main reservoir of the volatile elements that link chemical processes in dark, interstellar clouds with the formation of planets and composition of their atmospheres. The initial ice composition is set in the cold, dense part
Externí odkaz:
http://arxiv.org/abs/2301.09140
Autor:
Cordiner, M. A., Villanueva, G. L., Wiesemeyer, H., Milam, S. N., de Pater, I., Moullet, A., Aladro, R., Nixon, C. A., Thelen, A. E., Charnley, S. B., Stutzki, J., Kofman, V., Faggi, S., Liuzzi, G., Cosentino, R., McGuire, B. A.
The presence of phosphine (PH$_3$) in the atmosphere of Venus was reported by Greaves et al. (2021a), based on observations of the J=1-0 transition at 267 GHz using ground-based, millimeter-wave spectroscopy. This unexpected discovery presents a chal
Externí odkaz:
http://arxiv.org/abs/2210.13519
Autor:
Nomura, H., Furuya, K., Cordiner, M. A., Charnley, S. B., Alexander, C. M. O'D., Nixon, C. A., Guzman, V. V., Yurimoto, H., Tsukagoshi, T., Iino, T.
Isotopic ratios provide a powerful tool for understanding the origins of materials, including the volatile and refractory matter within solar system bodies. Recent high sensitivity observations of molecular isotopologues, in particular with ALMA, hav
Externí odkaz:
http://arxiv.org/abs/2203.10863