Zobrazeno 1 - 10
of 495
pro vyhledávání: '"Lis, D. C"'
Autor:
Biver, N., Bockelee-Morvan, D., Handzlik, B., Sandqvist, Aa., Boissier, J., Drozdovskaya, M. N., Moreno, R., Crovisier, J., Lis, D. C., Cordiner, M., Milam, S., Roth, N. X., Bonev, B. P., Russo, N. Dello, Vervack, R., Opitom, C., Kawakita, H.
Publikováno v:
A&A 690, A271 (2024)
We present the results of a molecular survey of long period comets C/2021 A1 (Leonard) and C/2022 E3 (ZTF). Comet C/2021 A1 was observed with the IRAM 30-m radio telescope in November-December 2021 before perihelion when it was closest to the Earth.
Externí odkaz:
http://arxiv.org/abs/2408.10759
Autor:
Wells, M. R. A., Beuther, H., Molinari, S., Schilke, P., Battersby, C., Ho, P., Sánchez-Monge, Á., Jones, B., Scheuck, M. B., Syed, J., Gieser, C., Kuiper, R., Elia, D., Coletta, A., Traficante, A., Wallace, J., Rigby, A. J., Klessen, R. S., Zhang, Q., Walch, S., Beltrán, M. T., Tang, Y., Fuller, G. A., Lis, D. C., Möller, T., van der Tak, F., Klaassen, P. D., Clarke, S. D., Moscadelli, L., Mininni, C., Zinnecker, H., Maruccia, Y., Pezzuto, S., Benedettini, M., Soler, J. D., Brogan, C. L., Avison, A., Sanhueza, P., Schisano, E., Liu, T., Fontani, F., Rygl, K. L. J., Wyrowski, F., Bally, J., Walker, D. L., Ahmadi, A., Koch, P., Merello, M., Law, C. Y., Testi, L.
Publikováno v:
A&A 690, A185 (2024)
We use data from the ALMA Evolutionary Study of High Mass Protocluster Formation in the Galaxy (ALMAGAL) survey to study 100 ALMAGAL regions at $\sim$ 1 arsecond resolution located between $\sim$ 2 and 6 kpc distance. Using ALMAGAL $\sim$ 1.3mm line
Externí odkaz:
http://arxiv.org/abs/2408.08299
Autor:
Sturm, J. A., McClure, M. K., Harsono, D., Bergner, J. B., Dartois, E., Boogert, A. C. A., Cordiner, M. A., Drozdovskaya, M. N., Ioppolo, S., Law, C. J., Lis, D. C., McGuire, B. A., Melnick, G. J., Noble, J. A., Öberg, K. I., Palumbo, M. E., Pendleton, Y. J., Perotti, G., Rocha, W. R. M., Urso, R. G., van Dishoeck, E. F.
Publikováno v:
A&A 689, A92 (2024)
Ice-coated dust grains provide the main reservoir of volatiles that play an important role in planet formation processes and may become incorporated into planetary atmospheres. However, due to observational challenges, the ice abundance distribution
Externí odkaz:
http://arxiv.org/abs/2407.09627
Autor:
Sturm, J. A., McClure, M. K., Beck, T. L., Harsono, D., Bergner, J. B., Dartois, E., Boogert, A. C. A., Chiar, J. E., Cordiner, M. A., Drozdovskaya, M. N., Ioppolo, S., Law, C. J., Linnartz, H., Lis, D. C., Melnick, G. J., McGuire, B. A., Noble, J. A., Öberg, K. I., Palumbo, M. E., Pendleton, Y. J., Perotti, G., Pontoppidan, K. M., Qasim, D., Rocha, W. R. M., Terada, H., Urso, R. G., van Dishoeck, E. F.
Ices are the main carriers of volatiles in protoplanetary disks and are crucial to our understanding of the chemistry that ultimately sets the organic composition of planets. The ERS program Ice Age on the JWST follows the ice evolution through all s
Externí odkaz:
http://arxiv.org/abs/2309.07817
Autor:
Santa-Maria, M. G., Goicoechea, J. R., Pety, J., Gerin, M., Orkisz, J. H., Petit, F. Le, Einig, L., Palud, P., Magalhaes, V. de Souza, Bešlić, I., Segal, L., Bardeau, S., Bron, E., Chainais, P., Chanussot, J., Gratier, P., Guzmán, V. V., Hughes, A., Languignon, D., Levrier, F., Lis, D. C., Liszt, H. S., Bourlot, J. Le, Oya, Y., Öberg, K., Peretto, N., Roueff, E., Roueff, A., Sievers, A., Thouvenin, P. -A., Yamamoto, S.
Publikováno v:
A&A 679, A4 (2023)
We present 5 deg^2 (~250 pc^2) HCN, HNC, HCO+, and CO J=1-0 maps of the Orion B GMC, complemented with existing wide-field [CI] 492 GHz maps, as well as new pointed observations of rotationally excited HCN, HNC, H13CN, and HN13C lines. We detect anom
Externí odkaz:
http://arxiv.org/abs/2309.03186
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:
Bockelée-Morvan, D., Biver, N., Schambeau, C. A., Crovisier, J., Opitom, C., Borro, M. de Val, Lellouch, E., Hartogh, P., Vandenbussche, B., Jehin, E., Kidger, M., Küppers, M., Lis, D. C., Moreno, R., Szutowicz, S., Zakharov, V.
29P/Schwassmann-Wachmann 1 is a distant Centaur/comet, showing persistent CO-driven activity and frequent outbursts. We used the Herschel space observatory in 2010, 2011, and 2013 to observe H$_2$O and NH$_3$ and to image the dust coma. Observations
Externí odkaz:
http://arxiv.org/abs/2205.11425
Autor:
Jacob, A. M., Neufeld, D. A., Schilke, P., Wiesemeyer, H., Kim, W., Bialy, S., Busch, M., Elia, D., Falgarone, E., Gerin, M., Godard, B., Higgins, R., Hennebelle, P., Indriolo, N., Lis, D. C., Menten, K. M., Sanchez-Monge, A., Ossenkopf-Okada, V., Rugel, M. R., Seifried, D., Sonnentrucker, P., Walch, S., Wolfire, M., Wyrowski, F., Valdivia, V.
The HyGAL SOFIA legacy program surveys six hydride molecules -- ArH+, OH+, H2O+, SH, OH, and CH -- and two atomic constituents -- C+ and O -- within the diffuse interstellar medium (ISM) by means of absorption-line spectroscopy toward 25 bright Galac
Externí odkaz:
http://arxiv.org/abs/2202.05046
Autor:
Möller, T., Schilke, P., Schmiedeke, A., Bergin, E. A., Lis, D. C., Sánchez-Monge, Á., Schwörer, A., Comito, C.
Publikováno v:
A&A 651, A9 (2021)
We present a full analysis of a broadband spectral line survey of Sagittarius B2 (Main), one of the most chemically rich regions in the Galaxy located within the giant molecular cloud complex Sgr B2 in the Central Molecular Zone. Our goal is to deriv
Externí odkaz:
http://arxiv.org/abs/2104.13150