Issue |
A&A
Volume 586, February 2016
|
|
---|---|---|
Article Number | A108 | |
Number of page(s) | 24 | |
Section | Catalogs and data | |
DOI | https://doi.org/10.1051/0004-6361/201527441 | |
Published online | 03 February 2016 |
New and updated convex shape models of asteroids based on optical data from a large collaboration network
1
Centre National d’Études Spatiales, 2 place Maurice Quentin, 75039
Paris Cedex 01,
France
e-mail: hanus.home@gmail.com
2
Laboratoire Lagrange, UMR7293, Université de la Côte d’Azur, CNRS,
Observatoire de la Côte d’Azur, Blvd de l’Observatoire, CS
34229, 06304
Nice Cedex 4,
France
3
Astronomical Institute, Faculty of Mathematics and Physics,
Charles University in Prague, V
Holešovičkách 2, 18000
Prague, Czech
Republic
4
Astronomical Observatory Institute, Faculty of Physics, A.
Mickiewicz University, Słoneczna
36, 60-286
Poznań,
Poland
5
Geneva Observatory, 1290
Sauverny,
Switzerland
6
Aix Marseille Université, CNRS, OHP (Observatoire de Haute
Provence), Institut Pythéas (UMS 3470), 04870
Saint-Michel-l’Observatoire,
France
7
Centre for Science at Extreme Conditions, The University of
Edinburgh, Erskine Williamson
Building, Peter Guthrie Tait Road, Edinburgh, EH9
3FD, UK
8
Association T60, Observatoire du Pic du Midi,
65200
Bagnères-de-Bigorre,
France
9
Observatoire des Hauts Patys, 84410
Bédoin,
France
10
Observatoire de Chinon, Mairie de Chinon, 37500
Chinon,
France
11 Villefagnan
Observatory, France
12 Harfleur Observatory,
France
13
490 chemin du gonnet,
38440
Saint Jean de Bournay,
France
14
Observatoire des Engarouines, 1606 chemin de Rigoy, 84570
Malemort-du-Comtat,
France
15
Collonges Observatory, 90 allée des résidences, 74160
Collonges,
France
16
SUPA, School of Physics & Astronomy,
North Haugh, St Andrews, KY16 9SS, UK
17
Via Capote Observatory, Thousand Oaks, CA
91320,
USA
18
Le Florian, Villa 4, 880 chemin de Ribac-Estagnol,
06600
Antibes,
France
19
Observatoire de Dauban, 04150
Banon,
France
20
Levendaal Observatory, Uiterstegracht 48, 2312 TE
Leiden, The
Netherlands
21
European Southern Observatory, La Silla, Coquimbo, Chile
22
Eurac Observatory, Bolzano/Bozen,
Italy
23
Vallemare di Bordona, Rieti, Italy
24
Observatorio Astronómico Caimari, 07144
Costitx,
Spain
25
Observatoire de Durtal, 49430
Durtal,
France
26
OAM - Mallorca, 07144
Costitx,
Spain
27
20 parc des Pervenches,
13012
Marseille,
France
28
Agrupación Astronómica de Sabadell, Apartado de Correos 50, PO Box 50, 08200
Sabadell, Barcelona, Spain
29
Observatorio El Vendrell, 1193
Trragona,
Spain
30
AFOEV (Association Française des Observateurs d’Etoiles
Variables), Observatoire de
Strasbourg 11, rue de l’Université, 67000
Strasbourg,
France
31
Observatori d’Ager, 08014
Barcelona,
Spain
32
Stazione Astronomica di Sozzago, 28060
Sozzago,
Italy
33
Santa Lucia Stroncone, 05039
Stroncone,
Italy
34
Institut d’Astrophysique de l’Université Liège,
Allèe du 6 Aout 17,
4000
Liège,
Belgium
35 Haleakala-Faulkes Telescope
North, Hawaii,
USA
36
Seine-Maritime, Le Havre, 76600
Haute-Normandie,
France
37
Village-Neuf Observatory, 9bis rue du Sauvage, 68300
Saint-Louis,
France
38
Mt. Suhora Observatory, Pedagogical University.
Podchorążych 2, 30-084, Cracow, Poland
39
Shed of Science Observatory, 5213 Washburn Ave. S, Minneapolis, MN
55410,
USA
40 Waterlooville,
UK
41
Observatoire St-Martin, 31 grande rue, 25330
Amathay Vésigneux,
France
42
Observatorio CEAM, Caimari, Canary Islands, Spain
43
Florida Gulf Coast University, 10501 FGCU Boulevard South, Fort Myers, FL
33965,
USA
44
Observatoire du Bois de Bardon, 16110
Taponnat,
France
45
Association T60, 14 avenue Edouard Belin, 31400
Toulouse,
France
46
Osservatorio l’Ampolla, Tarragona, Spain
47
International Occultation Timing Association,
Montgomery, AL, USA
48
Club d’Astronomie de Lyon Ampere (CALA),
Place de la Nation,
69120
Vaulx-en-Velin,
France
49 LinhaceiraObservatory,
Portugal
50
Hong Kong Space Museum, Tsimshatsui, Hong Kong, PR China
51
Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2,
12489
Berlin,
Germany
52
Astroqueyras, Mairie, 05350
Saint-Véran,
France
53
51 Centre astronomique de la Couyère, La Ville
d’ABas, 35320
La Couyère,
France
54
Hunters Hill Observatory, 7 Mawalan Street, Ngunnawal
ACT
2913,
Australia
55
Observatoire des Terres Blanches, 04110
Reillanne,
France
56
Department of Physics, University of Strathclyde,
16 Richmond Street,
Glasgow
G1 1XQ,
UK
57
Guitalens Observatory, 5 chemin d’En Combes, 81220
Guitalens,
France
58
Observatoire Les Makes, G. Bizet 18, 97421
La Rivière,
France
59
980 Antelope Drive West,
Bennett, CO
80102,
USA
60 Institute of Astronomy of Kharkiv
Karazin National University, Kharkiv 61022, Sumska Str. 35, Ukraine
61
Severní 765, 50003
Hradec Králové, Czech
republic
62
Uranoscope, Avenue Carnot 7, 77220
Gretz-Armainvilliers,
France
63 Observatoire OPERA,
France
64
Instituto de Astrofísica de Andalucía,
CSIC, Apdo. 9481, 08080
Barcelona,
Spain
65 Mulheim-Ruhr,
Germany
66 Tzec Maun Foundation
Observatory, Mayhill,
New Mexico,
US
67
Observatorio Montcabrer, C/Jaume Balmes nb 24, Cabrils
08348
Barcelona,
Spain
68
Kingsgrove, NSW, Australia
69
Sant Gervasi Observatory, 08022
Barcelona,
Spain
70
4438 Organ Mesa Loop,
Las Cruces, NM
88011,
USA
71
Rue des Ecoles 2,
34920
Le Crès,
France
72
11 rue François-Nouteau,
49650
Brain-sur-Allonnes,
France
73
Ottmarsheim Observatory, 5 rue du Lièvre, 68490
Ottmarsheim,
France
74
Université Claude BERNARD Lyon 1. Observatoire de Pommier,
POMMIER, 63230
Chapdes-Beaufort,
France
75
4 rue de la Bruyère,
37500
La Roche Clermault,
France
76
Observatoire de Blauvac, 293 chemin de St Guillaume, 84570
Blauvac,
France
77
Shadowbox Observatory, 12745
Crescent Drive, Carmel, IN
46032,
USA
78
Lowell Observatory, Flagstaff, AZ
86001,
USA
79 Savigny-le-Temple,
France
80
Observatorio Amanecer de Arrakis, MPC274 Alcalá de Guadaíra, Sevilla, Spain
81
Gnosca Observatory, 6525
Gnosca,
Switzerland
82
DeKalb Observatory, 2507 CR 60, Auburn, IN
46706,
USA
83
Center for Solar System Studies, 9302 Pittsburgh Ave, Suite 105, Rancho Cucamonga, CA
91730,
USA
84
School of Physics and Astronomy, University of
Edinburgh, James Clerk Maxwell
Building, Peter Guthrie Tait Road, Edinburgh, EH9
3FD, UK
85
European Space Astronomy Centre, ESA, PO Box 78, 28691
Villanueva de la Cañada,
Madrid,
Spain
86 Ironwood North,
Hawaii,
USA
87 Centre de Recherche en Astronomie,
Astrophysique et Géophysique, BP
63
Bouzereah,
Algiers
88
Astronomical Observatory of Jagiellonian University,
ul. Orla 171, 30-244
Kraków,
Poland
Received: 24 September 2015
Accepted: 22 October 2015
Context. Asteroid modeling efforts in the last decade resulted in a comprehensive dataset of almost 400 convex shape models and their rotation states. These efforts already provided deep insight into physical properties of main-belt asteroids or large collisional families. Going into finer detail (e.g., smaller collisional families, asteroids with sizes ≲20 km) requires knowledge of physical parameters of more objects.
Aims. We aim to increase the number of asteroid shape models and rotation states. Such results provide important input for further studies, such as analysis of asteroid physical properties in different populations, including smaller collisional families, thermophysical modeling, and scaling shape models by disk-resolved images, or stellar occultation data. This provides bulk density estimates in combination with known masses, but also constrains theoretical collisional and evolutional models of the solar system.
Methods. We use all available disk-integrated optical data (i.e., classical dense-in-time photometry obtained from public databases and through a large collaboration network as well as sparse-in-time individual measurements from a few sky surveys) as input for the convex inversion method, and derive 3D shape models of asteroids together with their rotation periods and orientations of rotation axes. The key ingredient is the support of more that 100 observers who submit their optical data to publicly available databases.
Results. We present updated shape models for 36 asteroids, for which mass estimates are currently available in the literature, or for which masses will most likely be determined from their gravitational influence on smaller bodies whose orbital deflections will be observed by the ESA Gaia astrometric mission. Moreover, we also present new shape model determinations for 250 asteroids, including 13 Hungarias and three near-Earth asteroids. The shape model revisions and determinations were enabled by using additional optical data from recent apparitions for shape optimization.
Key words: minor planets, asteroids: general / techniques: photometric / methods: observational / methods: numerical
© ESO, 2016
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