Zobrazeno 1 - 10
of 228
pro vyhledávání: '"Sicardy , Bruno"'
Until about a decade ago, ring systems were only known to exist around giant planets. Each one of the four giant planets harbours its own distinctive and unique system of rings and inner satellites. The past decade has been marked by the unexpected d
Externí odkaz:
http://arxiv.org/abs/2412.00853
Stellar occultations provide a powerful tool to explore objects of the outer solar system. The Gaia mission now provides milli-arcsec accuracy on the predictions of these events and makes possible observations that were previously unthinkable. Occult
Externí odkaz:
http://arxiv.org/abs/2411.07026
Autor:
Liberato, Luana, Tanga, Paolo, Mary, David, Minker, Kate, Carry, Benoit, Spoto, Federica, Bartczak, Przemyslaw, Sicardy, Bruno, Oszkiewicz, Dagmara, Desmars, Josselin
Asteroids with companions constitute an excellent sample for studying the collisional and dynamical evolution of minor planets. The currently known binary population were discovered by different complementary techniques that produce, for the moment,
Externí odkaz:
http://arxiv.org/abs/2406.07195
Autor:
Sicardy, Bruno
Stellar occultations and transits occur when a planetary body passes in front of a star (including our Sun). For objects with an atmosphere, refraction plays an essential role to explain the drops of flux and the aureoles observed during these events
Externí odkaz:
http://arxiv.org/abs/2206.06236
Autor:
Sicardy, Bruno, Ashok, Nagarhalli M., Tej, Anandmayee, Pawar, Ganesh, Deshmukh, Shishir, Deshpande, Ameya, Sharma, Saurabh, Desmars, Josselin, Assafin, Marcelo, Ortiz, Jose Luis, Benedetti-Rossi, Gustavo, Braga-Ribas, Felipe, Vieira-Martins, Roberto, Santos-Sanz, Pablo, Chand, Krishan, Bhatt, Bhuwan C.
A stellar occultation by Pluto was observed on 6 June 2020 with the 1.3-m and 3.6-m telescopes located at Devasthal, Nainital, India, using imaging systems in the I and H bands, respectively. From this event, we derive a surface pressure for Pluto's
Externí odkaz:
http://arxiv.org/abs/2112.07764
Publikováno v:
A&A 673, A138 (2023)
The most pristine remnants of the Solar system's planet formation epoch orbit the Sun beyond Neptune, the small bodies of the trans-Neptunian object populations. The bulk of the mass is in ~100 km objects, but objects at smaller sizes have undergone
Externí odkaz:
http://arxiv.org/abs/2111.00391
Autor:
Buie, Marc W., Leiva, Rodrigo, Keller, John M., Desmars, Josselin, Sicardy, Bruno, Kavelaars, JJ, Bridges, Terry, Weryk, Robert, Herald, Dave, Haley, Sean L., Strauss, Ryder, Wilde, Elizabeth, Baker, Robert, Conway, Ken, Dean, Bryan, Dunham, Mackenzie, Estes, James J, Fiechter, Naemi, Givot, Rima, Glibbery, Cameron, Gowe, Bruce, Hayman, Jennifer N., Ireland, Olivia L, Kehrli, Matthew, Moore, Erik M., MacDonald, Matthew A., McCrystal, Delsie, Mendoza, Paola, Palmquist, Bruce, Rennau, Sherry, Schar, Ramsey, Swanson, Diana J., Terris, Emma D., Werts, Holly, Wise, J. A.
Publikováno v:
AJ 159 230 (2020)
A stellar occultation by the extreme large-perihelion trans-Neptunian object (541132) Lele\={a}k\={u}honua (also known by the provisional designation of 2015 TG387) was predicted by the Lucky Star project and observed with the Research and Education
Externí odkaz:
http://arxiv.org/abs/2011.03889
Autor:
Sicardy, Bruno
We study sectoral resonances of the form $j\kappa= m(n-\Omega)$ around a non-axisymmetric body with spin rate $\Omega$, where $\kappa$ and $n$ are the epicyclic frequency and mean motion of a particle, respectively, where $j>0$ and $m$ ($<0$ or $>0$)
Externí odkaz:
http://arxiv.org/abs/2001.06382
In 1984, three telescopes in South America recorded an occultation of a star near Neptune. It was attributed to the existence of a partial ring or ring arc. The existence of ring arcs around Neptune was confirmed during subsequent years via other occ
Externí odkaz:
http://arxiv.org/abs/1906.11728
Autor:
Sicardy, Bruno, Renner, Stefan, Leiva, Rodrigo, Roques, Françoise, Moutamid, Maryame El, Santos-Sanz, Pablo, Desmars, Josselin
Since 2013, dense and narrow rings are known around the small Centaur object Chariklo and the dwarf planet Haumea. Dense material has also been detected around the Centaur Chiron, although its nature is debated. This is the first time ever that rings
Externí odkaz:
http://arxiv.org/abs/1904.04851