The similarity of the interstellar comet 2I/Borisov to solar system comets from high resolution optical spectroscopy

Autor: Opitom, C., Jehin, E., Hutsemékers, D., Shinnaka, Y., Manfroid, J., Rousselot, P., Raghuram, S., Kawakita, H., Fitzsimmons, A., Meech, K., Micheli, M., Snodgrass, C., Yang, B., Hainaut, O.

2I/Borisov - hereafter 2I - is the first visibly active interstellar comet observed in the solar system, allowing us for the first time to sample the composition of a building block from another system. We report on the monitoring of 2I with UVES, th

Externí odkaz: http://arxiv.org/abs/2106.04431

Spitzer Observations of Interstellar Object 1I/`Oumuamua

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

A dwarf planet class object in the 21:5 resonance with Neptune

Autor: Holman, Matthew J., Payne, Matthew J., Fraser, Wesley, Lacerda, Pedro, Bannister, Michele T., Lackner, Michael, Chen, Ying-Tung, Lin, Hsing Wen, Smith, Kenneth W., Kotanekova, Rositako, Young, David, Chambers, K., Chastel, S., Denneau, L., Fitzsimmons, A., Flewelling, H., Grav, Tommy, Huber, M., Induni, Nick, Kudritzki, Rolf-Peter, Krolewski, Alex, Jedicke, R., Kaiser, N., Lilly, E., Magnier, E., Mark, Zachary, Meech, K. J., micheli, M., Murray, Daniel, Parker, Alex, Protopapas, Pavlos, Ragozzine, Darin, Veres, Peter, Wainscoat, R., Waters, C., Weryk, R.

We report the discovery of a $H_r = 3.4\pm0.1$ dwarf planet candidate by the Pan-STARRS Outer Solar System Survey. 2010 JO$_{179}$ is red with $(g-r)=0.88 \pm 0.21$, roughly round, and slowly rotating, with a period of $30.6$ hr. Estimates of its alb

Externí odkaz: http://arxiv.org/abs/1709.05427

The 67P/Churyumov-Gerasimenko observation campaign in support of the Rosetta mission

Autor: Snodgrass, C., A'Hearn, M. F., Aceituno, F., Afanasiev, V., Bagnulo, S., Bauer, J., Bergond, G., Besse, S., Biver, N., Bodewits, D., Boehnhardt, H., Bonev, B. P., Borisov, G., Carry, B., Casanova, V., Cochran, A., Conn, B. C., Davidsson, B., Davies, J. K., de León, J., de Mooij, E., de Val-Borro, M., Delacruz, M., DiSanti, M. A., Drew, J. E., Duffard, R., Edberg, N. J. T., Faggi, S., Feaga, L., Fitzsimmons, A., Fujiwara, H., Gibb, E. L., Gillon, M., Green, S. F., Guijarro, A., Guilbert-Lepoutre, A., Gutiérrez, P. J., Hadamcik, E., Hainaut, O., Haque, S., Hedrosa, R., Hines, D., Hopp, U., Hoyo, F., Hutsemékers, D., Hyland, M., Ivanova, O., Jehin, E., Jones, G. H., Keane, J. V., Kelley, M. S. P., Kiselev, N., Kleyna, J., Kluge, M., Knight, M. M., Kokotanekova, R., Koschny, D., Kramer, E., López-Moreno, J. J., Lacerda, P., Lara, L. M., Lasue, J., Lehto, H. J., Levasseur-Regourd, A. C., Licandro, J., Lin, Z. Y., Lister, T., Lowry, S. C., Mainzer, A., Manfroid, J., Marchant, J., McKay, A. J., McNeill, A., Meech, K. J., Micheli, M., Mohammed, I., Monguió, M., Moreno, F., Muñoz, O., Mumma, M. J., Nikolov, P., Opitom, C., Ortiz, J. L., Paganini, L., Pajuelo, M., Pozuelos, F. J., Protopapa, S., Pursimo, T., Rajkumar, B., Ramanjooloo, Y., Ramos, E., Ries, C., Riffeser, A., Rosenbush, V., Rousselot, P., Ryan, E. L., Santos-Sanz, P., Schleicher, D. G., Schmidt, M., Schulz, R., Sen, A. K., Somero, A., Sota, A., Stinson, A., Sunshine, J., Thompson, A., Tozzi, G. P., Tubiana, C., Villanueva, G. L., Wang, X., Wooden, D. H., Yagi, M., Yang, B., Zaprudin, B., Zegmott, T. J.

Publikováno v: Phil. Trans. R. Soc. A 375, 20160249 (2017)

We present a summary of the campaign of remote observations that supported the European Space Agency's Rosetta mission. Telescopes across the globe (and in space) followed comet 67P/Churyumov-Gerasimenko from before Rosetta's arrival until nearly the

Externí odkaz: http://arxiv.org/abs/1705.10539

Continued activity in P/2013 P5 PANSTARRS - The comet that should not be

Autor: Hainaut, O. R., Boehnhardt, H., Snodgrass, C., Meech, K. J., Deller, J., Gillon, M., Jehin, E., Kuehrt, E., Lowry, S. C., Manfroid, J., Micheli, M., Mottola, S., Opitom, C., Vincent, J. -B., Wainscoat, R.

P/2013 P5 PANSTARRS was discovered in Aug. 2013, displaying a cometary tail, but with orbital elements typical for a member of the inner asteroid Main Belt. We monitored the object from 2013 Aug. 30 until Oct. 05 using the CFHT, NTT, CA 1.23m, Perkin

Externí odkaz: http://arxiv.org/abs/1401.5740