Zobrazeno 1 - 10
of 362
pro vyhledávání: '"Farnocchia, D"'
Autor:
Tricarico, P., Scheeres, D. J., French, A. S., McMahon, J. W., Brack, D. N., Leonard, J. M., Antreasian, P., Chesley, S. R., Farnocchia, D., Takahashi, Y., Mazarico, E. M., Rowlands, D., Highsmith, D., Getzandanner, K., Moreau, M., Johnson, C. L., Philpott, L., Bierhaus, E. B., Walsh, K. J., Barnouin, O. S., Palmer, E. E., Weirich, J. R., Gaskell, R. W., Daly, M. G., Seabrook, J. A., Nolan, M. C., Lauretta, D. S.
Exploration of asteroid (101955) Bennu by the OSIRIS-REx mission has provided an in-depth look at this rubble-pile near-Earth asteroid. In particular, the measured gravity field and the detailed shape model of Bennu indicate significant heterogeneiti
Externí odkaz:
http://arxiv.org/abs/2108.10416
Autor:
Hirabayashi, M., Mimasu, Y., Sakatani, N., Watanabe, S., Tsuda, Y., Saiki, T., Kikuchi, S., Kouyama, T., Yoshikawa, M., Tanaka, S., Nakazawa, S., Takei, Y., Terui, F., Takeuchi, H., Fujii, A., Iwata, T., Tsumura, K., Matsuura, S., Shimaki, Y., Urakawa, S., Ishibashi, Y., Hasegawa, S., Ishiguro, M., Kuroda, D., Okumura, S., Sugita, S., Okada, T., Kameda, S., Kamata, S., Higuchi, A., Senshu, H., Noda, H., Matsumoto, K., Suetsugu, R., Hirai, T., Kitazato, K., Farnocchia, D., Naidu, S. P., Tholen, D. J., Hergenrother, C. W., Whiteley, R. J., Moskovitz, N. A., Abell, P. A., group, the Hayabusa2 extended mission study
Hayabusa2 is the Japanese Asteroid Return Mission and targeted the carbonaceous asteroid Ryugu, conducted by the Japan Aerospace Exploration Agency (JAXA). The goal of this mission was to conduct proximity operations including remote sensing observat
Externí odkaz:
http://arxiv.org/abs/2104.08660
Publikováno v:
Celestial Mechanics and Dynamical Astronomy (2020)
We present an approach to estimate an upper bound for the impact probability of a potentially hazardous asteroid when part of the force model depends on unknown parameters whose statistical distribution needs to be assumed. As case study we consider
Externí odkaz:
http://arxiv.org/abs/2011.13632
Autor:
Bodewits, D., Noonan, J. W., Feldman, P. D., Bannister, M. T., Farnocchia, D., Harris, W. M., Li, J. -Y., Mandt, K. E., Parker, J. Wm., Xing, Z.
Publikováno v:
Nature Astronomy, 2020
Interstellar comets offer direct samples of volatiles from distant protoplanetary disks. 2I/Borisov is the first notably active interstellar comet discovered in our solar system[1]. Comets are condensed samples of the gas, ice, and dust that were in
Externí odkaz:
http://arxiv.org/abs/2004.08972
Autor:
Trilling, DE, Mommert, M, Hora, JL, Farnocchia, D, Chodas, P, Giorgini, J, Smith, HA, Carey, S, Lisse, CM, Werner, M, McNeill, A, Chesley, SR, Emery, JP, Fazio, G, Fernandez, YR, Harris, A, Marengo, M, Mueller, M, Roegge, A, Smith, N, Weaver, HA, Meech, K, Micheli, M
Publikováno v:
Published in the Astronomical Journal, 156, 261 (2018)
1I/`Oumuamua is the first confirmed interstellar body in our Solar System. Here we report on observations of `Oumuamua made with the Spitzer Space Telescope on 2017 November 21--22 (UT). We integrated for 30.2~hours at 4.5 micron (IRAC channel 2). We
Externí odkaz:
http://arxiv.org/abs/1811.08072
Autor:
Bailer-Jones, C. A. L., Farnocchia, D., Meech, K. J., Brasser, R., Micheli, M., Chakrabarti, S., Buie, M. W., Hainaut, O. R.
The first detected interstellar object 'Oumuamua that passed within 0.25au of the Sun on 2017 September 9 was presumably ejected from a stellar system. We use its newly determined non-Keplerian trajectory together with the reconstructed Galactic orbi
Externí odkaz:
http://arxiv.org/abs/1809.09009
Autor:
Durech, J., Vokrouhlicky, D., Pravec, P., Hanus, J., Farnocchia, D., Krugly, Yu. N., Ayvazian, V. R., Fatka, P., Chiorny, V. G., Gaftonyuk, N., Galad, A., Groom, R., Hornoch, K., Inasaridze, R. Y., Kucakova, H., Kusnirak, P., Lehky, M., Kvaratskhelia, O. I., Masi, G., Molotov, I. E., Oey, J., Pollock, J. T., Shevchenko, V. G., Vrastil, J., Warner, B. D.
Publikováno v:
A&A 609, A86 (2018)
The rotation states of small asteroids are affected by a net torque arising from an anisotropic sunlight reflection and thermal radiation from the asteroids' surfaces. On long timescales, this so-called YORP effect can change asteroid spin directions
Externí odkaz:
http://arxiv.org/abs/1711.05987
Near-Earth asteroid 2014 AA entered the Earth's atmosphere on 2014 January 2, only 21 hours after being discovered by the Catalina Sky Survey. In this paper we compute the trajectory of 2014 AA by combining the available optical astrometry, seven gro
Externí odkaz:
http://arxiv.org/abs/1601.03339
Autor:
Farnocchia, D., Chesley, S. R., Micheli, M., Delamere, A., Heyd, R. S., Tholen, D. J., Giorgini, J. D., Owen, W. M., Tamppari, L. K.
The Mars flyby of C/2013 A1 (Siding Spring) represented a unique opportunity for imaging a long-period comet and resolving its nucleus and rotation period. Because of the small encounter distance and the high relative velocity, the goal of successful
Externí odkaz:
http://arxiv.org/abs/1507.01980
We describe systematic ranging, an orbit determination technique especially suitable to assess the near-term Earth impact hazard posed by newly discovered asteroids. For these late warning cases, the time interval covered by the observations is gener
Externí odkaz:
http://arxiv.org/abs/1504.00025