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Recent work has shown that the correlation between SDSS colors and optical albedo can be used to estimate asteroid sizes from optical data alone. We revisit a correlation between SDSS colors and optical albedo for asteroids, with the albedo…

Earth and Planetary Astrophysics · Physics 2021-01-06 Vedrana Ivezić , Željko Ivezić

We present analysis of the asteroid surface density distribution of main belt asteroids (mean perihelion $\Delta \simeq 2.404$ AU) in five ecliptic latitude fields, $-17 \gtsimeq \beta(\degr) \ltsimeq +15$, derived from deep \textit{Large…

A new family classification, based on a catalog of proper elements with $\sim 384,000$ numbered asteroids and on new methods is available. For the $45$ dynamical families with $>250$ members identified in this classification, we present an…

Earth and Planetary Astrophysics · Physics 2015-06-11 Federica Spoto , Andrea Milani , Zoran Knezevic

Main-belt asteroids have been continuously colliding with one another since they were formed. Its size distribution is primarily determined by the size dependence of asteroid strength against catastrophic impacts. The strength scaling law…

Earth and Planetary Astrophysics · Physics 2015-06-16 Tsuyoshi Terai , Jun Takahashi , Yoichi Itoh

The thermal properties of the surfaces of asteroids determine the magnitude of the drift rate cause by the Yarkovsky force. In the general case of Main Belt asteroids, the Yarkovsky force is indirectly proportional to the thermal inertia,…

Earth and Planetary Astrophysics · Physics 2018-04-11 Bryce T. Bolin , Alessandro Morbidelli , Kevin J. Walsh

The debiased absolute-magnitude and orbit distributions as well as source regions for near-Earth objects (NEOs) provide a fundamental frame of reference for studies of individual NEOs and more complex population-level questions. We present…

In this work, we construct a new model for the collisional evolution of the main asteroid belt. Our goals are to test the scaling law of Benz and Asphaug (1999) and ascertain if it can be used for the whole belt. We want to find initial…

Earth and Planetary Astrophysics · Physics 2015-06-22 Helena Cibulková , Miroslav Brož , Paula G. Benavidez

We present an analysis of the albedo properties of main belt asteroids detected by the All-Sky Survey of the infrared satellite AKARI. The characteristics of 5120 asteroids detected by the survey, including their sizes and albedos, were…

We estimate the total population of near-Earth objects (NEOs) in the Solar System, using an extensive, `Solar System to pixels' fake-asteroid simulation to debias detections of real NEOs by the ATLAS survey. Down to absolute magnitudes…

<<>> Among the components of the infrared and submillimetre sky background, the closest layer is the thermal emission of dust particles and minor bodies in the Solar System. This contribution is especially important for current and future…

Astrophysics · Physics 2009-11-13 Cs. Kiss , A. Pal , Th. G. Mueller , P. Abraham

The metal content of asteroids is of great interest, not only for theories of their origins and the evolution of the solar system but, in the case of near-Earth objects (NEOs), also for impact mitigation planning and endeavors in the field…

Earth and Planetary Astrophysics · Physics 2014-03-26 Alan W. Harris , Line Drube

Results of photometric observations of a small sample of selected Main Belt asteroids are presented. The obtained measurements can be used to achieve a better calibration of the asteroid photometric system $(H, G_1, G_2)$ adopted by the…

Earth and Planetary Astrophysics · Physics 2019-03-29 A. Carbognani , A. Cellino , S. Caminiti

We study the distributions of effective diameter ($D$), beaming parameter ($\eta$), and visible geometric albedo ($p_V$) of asteroids in cometry orbits (ACOs) populations, derived from NASA's Wide-field Infrared Explorer (WISE)…

Earth and Planetary Astrophysics · Physics 2015-12-16 J. Licandro , V. Ali-Lagoa , G. Tancredi , Y. Fernandez

Context. To investigate the distribution of rotation periods of asteroids from different regions of the Solar System and distribution of diameters of near-Earth asteroids (NEAs). Aims. Verify if nonextensive statistics satisfactorily…

Earth and Planetary Astrophysics · Physics 2012-05-29 Alberto S. Betzler , Ernesto P. Borges

Understanding the dynamical evolution of asteroids through the secular Yarkovsky effect requires the determination of many physical properties, including the rotation period. We propose a method aimed at obtaining a robust determination of…

Earth and Planetary Astrophysics · Physics 2025-01-14 D. E. Vavilov , B. Carry

Enhancements to the science data processing pipeline of NASA's Wide-field Infrared Explorer (WISE) mission, collectively known as NEOWISE, resulted in the detection of $>$158,000 minor planets in four infrared wavelengths during the fully…

Earth and Planetary Astrophysics · Physics 2015-06-11 A. Mainzer , T. Grav , J. Masiero , J. Bauer , R. M. Cutri , R. S. McMillan , C. R. Nugent , D. Tholen , R. Walker , E. L. Wright

In the absence of dense photometry for a large population of Near Earth Objects (NEOs), the best method of obtaining a shape distribution comes from sparse photometry and partial lightcurves. We have used 867 partial lightcurves obtained by…

Earth and Planetary Astrophysics · Physics 2019-04-10 Andrew McNeill , Joseph L. Hora , Annika Gustafsson , David E. Trilling , Michael Mommert

We present the preliminary results of an analysis of the sub-populations within the near-Earth asteroids, including the Atens, Apollos, Amors, and those that are considered potentially hazardous using data from the Wide-field Infrared…

Earth and Planetary Astrophysics · Physics 2015-06-05 A. Mainzer , T. Grav , J. Masiero , J. Bauer , R. S. McMillan , J. Giorgini , T. Spahr , R. M. Cutri , D. J. Tholen , R. Jedicke , R. Walker , E. Wright , C. R. Nugent

With the growing numbers of asteroids being discovered, identifying an observationally complete sample is essential for statistical analyses and for informing theoretical models of the dynamical evolution of the solar system. We present an…

Earth and Planetary Astrophysics · Physics 2020-10-16 Nathanial P Hendler , Renu Malhotra

Near Earth Objects (NEOs) are a transient population of small bodies with orbits near or in the terrestrial planet region. They represent a mid-stage in the dynamical cycle of asteroids and comets, which starts with their removal from the…

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