Results 81 to 90 of about 796 (181)

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

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

Asteroid Rotational Disruption Optimization

Rotational disruption of asteroids is a crucial dynamical phenomenon in astrophysics. It occurs when an asteroid accelerates its rotation or increases its angular momentum, causing it to break apart or fragment due to its own gravity and material strength being unable to maintain its overall structure.
openaire   +2 more sources

Rotational period determination of fortuitous asteroids

Revista Mexicana de Astrofísica y Astronomía Serie de Conferencias
In this work we present the results of the photometric analysis of 11 asteroids whose rotation period has not been estimated and which we consider to be fortuitous as they were not the main objective of the photometric observations. They were present in the same field of view as the asteroid of study and showed sufficient brightness for photometric ...
Johana Murcia-Rocha, Camilo Delgado-Correal, José Sergio Silva-Cabrera   +2 more
openaire   +1 more source

Asteroid Rotational Breakup Optimization

This paper proposes an optimization algorithm, Asteroid Rotational Breakup Optimization (ARBO), based on the physics metaphor of asteroid breakup. By simulating the breakup and fragment reassembly of asteroids under high-speed rotation, ARBO enables efficient exploration of complex search spaces.
openaire   +1 more source

Asteroid sample return missions are critical for understanding our Solar System. [PDF]

Nat Commun
Bates H.
europepmc   +1 more source

Spectroscopic insights into the near-earth didymos-dimorphos binary system following the double asteroid redirection test (DART) mission impact. [PDF]

Nat Commun
Lazzarin M, La Forgia F, Farina A, Migliorini A, Frattin E, Ochner P, Michel P, Kueppers M, de Leon J, Carnelli I, Ulamec S, Chabot N, Ammannito E, Amoroso M, Geier S, Hirabayashi M, Kareta T, Li JY, Mura AC, Oszkiewicz D, Popescu M, Rivkin AS.   +21 more
europepmc   +1 more source

Hayabusa2 extended mission target asteroid 1998 KY₂₆ is smaller and rotating faster than previously known. [PDF]

Nat Commun
Santana-Ros T, Bartczak P, Muinonen K, Rożek A, Müller T, Hirabayashi M, Farnocchia D, Micheli M, Cannon RE, Brozović M, Hainaut O, Oszkiewicz D, Virkki AK, Benner LAM, Campo Bagatin A, Benavidez PG, Cabrera-Lavers A, Martínez-Vázquez CE, Vivas K.   +18 more
europepmc   +1 more source