Results 91 to 100 of about 464,819 (198)

On the rotation of M-type asteroids: Statistical evidence for higher rotation rates

Icarus
Rotational dynamics of asteroids carry important information about their internal structure, collisional history and material composition. This work investigates whether M-type asteroids exhibit systematically higher rotation rates than the broader asteroid population.
Fernando Abarzuza, Noemí Pinilla-Alonso, Miquel Serra-Ricart, Santiago Iglesias Álvarez, Miguel R. Alarcon   +4 more
openaire   +2 more sources

Ground-based Characterization of (98943) Torifune 2001 CC21, the Target of the Hayabusa2# Space Mission

The Planetary Science Journal
The near-Earth asteroid (98943) Torifune, previously designated 2001 CC _21 , is the flyby target of the Hayabusa2 extended mission, nicknamed Hayabusa2 # (Small Hazardous Asteroid Reconnaissance Probe (SHARP)).
Marcel M. Popescu, Eri Tatsumi, Javier Licandro, Miguel R. Alarcon, Javier Rodríguez Rodríguez, Miquel Serra-Ricart, Julia de León, Joaquín Fernandez Martin, David Morate, Gabriel N. Simion, Bogdan Alexandru Dumitru, Daniel Nicolae Berteşteanu, George Pantelimon Prodan, Masatoshi Hirabayashi   +13 more
doaj   +1 more source

Shape, Regolith Size and Thickness, SMFe0 Content, and Spectral Type of Tianwen-2 Target Asteroid (469219) Kamo‘oalewa

The Astrophysical Journal
China’s Tianwen-2 spacecraft was launched on 2025 May 29 and will arrive at the Earth quasi-satellite (469219) Kamo‘oalewa in 2026 July. We previously reported that Kamo‘oalewa develops an LL-chondrite-compositional, highly space-weathered surface. Here,
Pengfei Zhang, Guozheng Zhang, Yongxiong Zhang, Marco Fenucci, Pierre Vernazza, Jin Zhao, Yunbo Niu, Xuejin Lu, Xing Wu, Honglei Lin, Edward Cloutis, Xiaoran Yan, Xiaobin Wang, Xiaoping Zhang, Yang Li   +14 more
doaj   +1 more source

Dimorphos’s Orbit Period Change and Attitude Perturbation due to Its Reshaping after the DART Impact

The Planetary Science Journal
On 2022 September 26 (UTC), NASA's Double Asteroid Redirection Test (DART) mission achieved a successful impact on Dimorphos, the secondary component of the near-Earth binary asteroid system (65803) Didymos. Subsequent ground-based observations suggest a
Ryota Nakano, Masatoshi Hirabayashi, Sabina D. Raducan, Petr Pravec, Shantanu P. Naidu, Harrison F. Agrusa, Steven Chesley, Fabio Ferrari, Martin Jutzi, Colby C. Merrill, Alex J. Meyer, Patrick Michel, Derek C. Richardson, Paul Sánchez, Peter Scheirich, Stephen R. Schwartz, Yun Zhang, Adriano Campo Bagatin, Po-Yen Liu, Andrew F. Cheng   +19 more
doaj   +1 more source

Considering Contact Forces during the Formation of Planetesimals by Gravitational Collapse: Mutual Orbits, Spin States, and Shapes

The Astrophysical Journal
In this work, we apply a soft-sphere discrete element method (SSDEM) within the PKDGRAV N -body integrator to investigate the formation of planetesimal systems through the gravitational collapse of clouds of superparticles. Previously published numerical
Jackson T. Barnes, Stephen R. Schwartz, Seth A. Jacobson   +2 more
doaj   +1 more source

Euclid: Asteroid rotation periods from the Euclid Ecliptic Survey★

Astronomy & Astrophysics
The Euclid Ecliptic Survey was conducted during the calibration phase of the mission, from 23 to 31 December 2023, as a campaign to study Solar System objects. We used data from this survey to analyse more than 23 000 appeareances of 2321 known asteroids.
Irureta-Goyena B. Y., Altieri B., Kneib J.-P., Pöntinen M., Hainaut O. R., Alarcon M. R., Granvik M., Nucita A. A., Carry B., Devogele M., Mahlke M., Vavrek R., Müller T., Vilenius E., Snodgrass C., Kohley R., Lemon C., Gómez-Alvarez P., Verdoes Kleijn G., Licandro J., Kruk S., Conversi L., Franco A., Buenadicha G., Mas-Buitrago P., Kuijken K., Andreon S., Baccigalupi C., Baldi M., Balestra A., Battaglia P., Biviano A., Branchini E., Brescia M., Camera S., Capobianco V., Carbone C., Carretero J., Casas R., Castellano M., Castignani G., Cavuoti S., Chambers K. C., Cimatti A., Colodro-Conde C., Congedo G., Conselice C. J., Copin Y., Courbin F., Courtois H. M., Cropper M., Degaudenzi H., De Lucia G., Dolding C., Dole H., Dubath F., Dupac X., Farina M., Farinelli R., Ferriol S., Frailis M., Fumana M., Galeotta S., George K., Gillis B., Giocoli C., Gracia-Carpio J., Grazian A., Grupp F., Haugan S. V. H., Hoekstra H., Holmes W., Hook I. M., Hormuth F., Hornstrup A., Jahnke K., Jhabvala M., Kiessling A., Kubik B., Kümmel M., Kunz M., Kurki-Suonio H., Le Brun A. M. C., Ligori S., Lilje P. B., Lindholm V., Lloro I., Mainetti G., Mansutti O., Marggraf O., Martinelli M., Martinet N., Marulli F., Massey R. J., Medinaceli E., Mei S., Merlin E., Meylan G., Mora A., Moscardini L., Nakajima R., Neissner C., Niemi S.-M., Padilla C., Paltani S., Pasian F., Pedersen K., Percival W. J., Pettorino V., Polenta G., Popa L. A., Raison F., Rebolo R., Renzi A., Rhodes J., Riccio G., Romelli E., Roncarelli M., Saglia R., Sakr Z., Sapone D., Schirmer M., Schneider P., Secroun A., Sihvola E., Simon P., Sirignano C., Sirri G., Stanco L., Tallada-Crespí P., Tereno I., Toft S., Toledo-Moreo R., Torradeflot F., Tutusaus I., Valiviita J., Vassallo T., Wang Y., Weller J., Zerbi F. M., García-Bellido J., Martín-Fleitas J., Scottez V., Helou G., Scott D.   +144 more
doaj   +1 more source

On the consequences of a fragmentation due to a NEO mitigation strategy [PDF]

, 2008
The fragmentation of an Earth threatening asteroid as a result of a hazard mitigation mission is examined in this paper. The minimum required energy for a successful impulsive deflection of a threatening object is computed and compared with the energy ...
Vasile, M., Sanchez Cuartielles, Joan-Pau, Vasile, Massimiliano, Sanchez Cuartielles, J.P., Radice, G., Sanchez, J.P., Radice, Gianmarco   +6 more
core  

Direct N-body Simulations of Satellite Formation around Small Asteroids: Insights from DART’s Encounter with the Didymos System

The Planetary Science Journal
We explore binary asteroid formation by spin-up and rotational disruption considering the NASA DART mission's encounter with the Didymos–Dimorphos binary, which was the first small binary visited by a spacecraft.
Harrison F. Agrusa, Yun Zhang, Derek C. Richardson, Petr Pravec, Matija Ćuk, Patrick Michel, Ronald-Louis Ballouz, Seth A. Jacobson, Daniel J. Scheeres, Kevin Walsh, Olivier Barnouin, R. Terik Daly, Eric Palmer, Maurizio Pajola, Alice Lucchetti, Filippo Tusberti, Joseph V. DeMartini, Fabio Ferrari, Alex J. Meyer, Sabina D. Raducan, Paul Sánchez   +20 more
doaj   +1 more source

Photometric Observations and Analysis of Active Asteroid (62412) 2000 SY178

The Astronomical Journal
The active asteroid (62412) 2000 SY178 is a C-type object located in the outer main belt and was first reported to exhibit a dust tail in 2014 May. Before and after its recent perihelion, we carried out long-term observations of 2000 SY178 with the ...
Xiangyu Fan, Xiliang Zhang, Xiaomeng Xu, Ling Wang   +3 more
doaj   +1 more source

Rotationally Resolved Near-infrared Spectroscopy of Three Large Eurybates Family Members

The Planetary Science Journal
The Eurybates family is the largest collisional family in the Jupiter Trojan population. Previous visible spectroscopy of asteroid (3548) Eurybates has shown potential surface heterogeneity due to rotation of the asteroid.
Anicia Arredondo
doaj   +1 more source