Analysis of the rotation period of asteroids (1865) Cerberus, (2100) Ra-Shalom, and (3103) Eger – search for the YORP effect
J. ĎurechCzech Academy of Sciences, Astronomical InstituteD. VokrouhlickýCzech Academy of Sciences, Astronomical InstituteA. R. BaranskyAstronomical ObservatoryS. BreiterAstronomical Observatory Institute, Faculty of Physics, Adam Mickiewicz University, Słoneczna 36, 60-286 Poznań, PolandO. A. BurkhonovUlugh Beg Astronomical Institute, Uzbek Academy of Sciences, Astronomicheskaya 33, Tashkent 100052, UzbekistanW. CooneySonoita Research Observatory, 1442 E Roger Rd, Tuscon, AZ 85719, USAV. FullerPhysics and Astronomy Department, Appalachian State University, Boone, NC 28608, USAN. M. GaftonyukCrimean Astrophysical Observatory, Simeiz Department, Simeiz 98680, UkraineJ. GrossSonoita Research Observatory, 1442 E Roger Rd, Tuscon, AZ 85719, USAR. Ya. InasaridzeEvgeni Kharadze Georgian National Astrophysical ObservatoryM. KaasalainenDepartment of Mathematics, Tampere University of Technology, PO Box 553, 33101 Tampere, FinlandYu. N. KruglyO. I. KvaratsheliaKharadze Abastumani Astrophysical Observatory, Ilia State University, G.Tsereteli str. 3, Tbilisi 0162, GeorgiaE. A. LitvinenkoThe Central (Pulkovo) Astronomical Observatory of the Russian Academy of Sciences, Pulkovskoye chaussee 65/1, St.-Petersburg 196140, RussiaB. MacomberUniversity of California at Berkeley, Department of Astronomy, 601 Campbell Hall, Berkeley, CA 94720, USAF. MarchisCarl Sagan Center, SETI institute, 189 Bernardo Av., Mountain View CA 94043, USAI. E. MolotovKeldysh Institute of Applied Mathematics, RAS, Miusskaya sq. 4, 125047 Moscow, RussiaJ. OeyKingsgrove Observatory, 23 Monaro Ave., Kingsgrove, NSW, AustraliaD. PolishookDepartment of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USAJ. PollockPhysics and Astronomy Department, Appalachian State University, Boone, NC 28608, USAP. PravecOndřejov Observatory, AV ČR, 251 65 Ondřejov, Czech RepublicK. SárneczkyKonkoly Observatory of the Hungarian Academy of Sciences, PO Box 67, 1525 Budapest, HungaryV. G. ShevchenkoCrimean Astrophysical Observatory, Simeiz Department, Simeiz 98680, UkraineI. SlyusarevCrimean Astrophysical Observatory, Simeiz Department, Simeiz 98680, UkraineR. StephensGoat Mountain Astronomical Research Station, 11355 Mount Johnson Court, Rancho Cucamonga, CA 91737, USAGy. SzabóHungarian Academy of SciencesD. TerrellSonoita Research Observatory, 1442 E Roger Rd, Tuscon, AZ 85719, USAF. VachierInstitut de Mécanique Céleste et de Calcul des ÉphéméridesZ. VanderplatePhysics and Astronomy Department, Appalachian State University, Boone, NC 28608, USAM. ViikinkoskiDepartment of Mathematics, Tampere University of Technology, PO Box 553, 33101 Tampere, FinlandB. D. WarnerPalmer Divide Observatory, 17955 Bakers Farm Rd., Colorado Springs, CO 80908, USA
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Annotatsiya
Context. The spin state of small asteroids can change on a long timescale by the Yarkovsky-O’Keefe-Radzievskii-Paddack (YORP) effect, the net torque that arises from anisotropically scattered sunlight and proper thermal radiation from an irregularly-shaped asteroid. The secular change in the rotation period caused by the YORP effect can be detected by analysis of asteroid photometric lightcurves.
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