CELLINO , A.

According to current plans of ESA, Gaia will be launched in 2011. With a systematic survey of the whole sky down to magnitude V = 20, Gaia will provide a fundamental contribution in practically all fields of modern Astrophysics. In particular, Gaia will be also a major milestone in the history of asteroid science. Based on its unprecedented...

Impacts on Earth, The Spring School of Astronomy and Astrophysics of Goutelas, Lecture Notes in Physics 505, pp. 3-30 (2003)

Advances in Space Research, 40, pp. 202-208, http://dx.doi.org./10.1016/j.asr..03.011

Icarus, 188, pp. 266-269, http://dx.doi.org./10.1016/j.icarus.2006.12.024

Astrophysical Journal, 694, Issue 2, pp. 1228-1236 (2009)

Astronomy and Astrophysics, 506, pp. 935-954 (2009)

Advances in Space Research, 38, pp. 2000-2005, http://dx.doi.org./10.1016/j.asr..01.007

We present the results of a campaign of polarimetric observations of small asteroids belonging to the Karin and Koronis families, carried out at the ESO Cerro Paranal Observatory using the VLT-Kueyen 8-meter telescope. The Karin family is known to be very young, having likely been produced by the disruption of an original member of the Koronis...

We present the results of a campaign of polarimetric observations of small asteroids belonging to the Karin and Koronis families, carried out at the ESO Cerro Paranal Observatory using the VLT-Kueyen 8-meter telescope. The Karin family is known to be very young, having likely been produced by the disruption of an original member of the Koronis...

International audience

Icarus, 168, pp. 374-384 (2004)

Advances in Space Research, 40, pp. 209-214, http://dx.doi.org./10.1016/j.asr..03.088

Context. Sparse photometric data can be used to determine the spin properties and infer information about the shapes of asteroids. The algorithm adopted for the inversion of Gaia photometric data assumes, for the sake of simplicity and to minimize CPU execution time, that the objects have triaxial ellipsoid shapes. In the past, this algorithm...

35th COSPAR Scientific Assembly, 2205, n/a, (2004)

We have developed a new three-parameter H, G1, G2 magnitude phase function for asteroids. The phase function is aimed at replacing the currently adopted two-parameter H, G phase function. We show that H, G1, G2 produces better fits of available magnitude - phase curves of well-observed asteroids. We show also that the new system can be...

Icarus, 179, pp. 304-324 (2005)

Here we present the first Gaia spectroscopic observations of asteroids. These data will be used to identify the composition of asteroids. Gaia will obtain the largest spectroscopic survey of the Main asteroid Belt.

We present Markov-Chain Monte-Carlo methods (MCMC) for the derivation of empirical model parameters for photometric and polarimetric phase curves of asteroids. Here we model the two phase curves jointly at phase angles 25° using a linear-exponential model, accounting for the opposition effect in disk-integrated brightness and the negative...

International audience

Abstract So far, only two interstellar objects have been observed within our Solar System. While the first one, 1I/'Oumuamua, had asteroidal characteristics, the second one, 2I/Borisov, showed clear evidence of cometary activity. We performed polarimetric observations of comet 2I/Borisov using the European Southern Observatory Very Large...

Context. The Gaia mission of the European Space Agency is measuring reflectance spectra of a number of the order of 10 5 small solar system objects. A first sample will be published in the Gaia Data Release scheduled in 2021. Aims. The aim of our work was to test the procedure developed to obtain taxonomic classifications for asteroids based...

Context. The Calern Asteroid Polarimetric Survey (CAPS), a collaboration between the INAF Astrophysical Observatory of Torino (Italy) and the Observatoire de la Côte d'Azur (Nice, France), has produced new asteroid polarimetric data for a number of years, and is one of the most important, currently active projects of asteroid polarimetry. Aims....