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Related papers: Scaling slowly rotating asteroids by stellar occul…

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The Asteroid Terrestrial-impact Last Alert System (ATLAS) is an all-sky survey primarily aimed at detecting potentially hazardous near-Earth asteroids. Apart from the astrometry of asteroids, it also produces their photometric measurements…

Earth and Planetary Astrophysics · Physics 2020-11-04 J. Durech , J. Tonry , N. Erasmus , L. Denneau , A. N. Heinze , H. Flewelling , R. Vanco

The long-term dynamical evolution of asteroid families is governed by the interplay between orbital and rotational evolution driven by thermal forces and collision. We aim to observationally trace the rotational evolution of main-belt…

Earth and Planetary Astrophysics · Physics 2026-03-11 Gabriele Bertinelli , Wen-Han Zhou , Paolo Tanga

We examined two decades of SpeX/NASA Infrared Telescope Facility observations from the Small Main-Belt Asteroid Spectroscopic Survey (SMASS) and the MIT-Hawaii Near-Earth Object Spectroscopic Survey (MITHNEOS) to investigate uncertainties…

When studying transiting exoplanets it is common to assume a spherical planet shape. However short rotational periods can cause a planet to bulge at its equator, as is the case with Saturn whose equatorial radius is almost 10% larger than…

Earth and Planetary Astrophysics · Physics 2022-08-31 David Berardo , Julien DeWit

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

Radiolocation methods of probing minor celestial bodies (asteroids) by the nanosecond pulses can be used for monitoring of near-Earth space with the purpose of identification of hazardous cosmic objects able to impact the Earth. Development…

Earth and Planetary Astrophysics · Physics 2015-05-20 V. D. Zakharchenko , I. G. Kovalenko , O. V. Pak

Super-fast rotators (SFRs; P < 2.2 hr) are of great importance in asteroid studies; yet, many reported detections suffer from aliasing caused by an insufficient observation cadence. We present dense CCD photometry for 15 SFRs candidates (14…

Earth and Planetary Astrophysics · Physics 2025-09-09 Bojan Novaković , Pedro J. Gutiérrez

The rotation state of small asteroids is affected in the long term by perturbing torques of gravitational and radiative origin (the YORP effect). Direct observational evidence of the YORP effect is the primary goal of our work. We carried…

Despite the large amount of high quality data generated in recent space encounters with asteroids, the majority of our knowledge about these objects comes from ground based observations. Asteroids travelling in orbits that are potentially…

Earth and Planetary Astrophysics · Physics 2017-05-17 T. Santana-Ros , G. Dudziński , P. Bartczak

The NEOWISE dataset offers the opportunity to study the variations in albedo for asteroid classification schemes based on visible and near-infrared observations for a large sample of minor planets. We have determined the albedos for nearly…

Earth and Planetary Astrophysics · Physics 2015-05-30 A. Mainzer , T. Grav , J. Masiero , J. Bauer , E. Hand , D. Tholen , R. S. McMillan , T. Spahr , R. M. Cutri , E. Wright , J. Watkins , W. Mo , C. Maleszewski

Large or even medium sized asteroids impacting the Earth can cause damage on a global scale. Existing and planned concepts for finding near-Earth objects (NEOs) with diameter of 140 m or larger would take ~15-20 years of observation to find…

Earth and Planetary Astrophysics · Physics 2018-11-14 Michael Shao , Hanying Zhou , Slava G. Turyshev , Chengxing Zhai , Navtej Saini , Russell Trahan

Non-resolved thermal infrared observations enable studies of thermal and physical properties of asteroid surfaces provided the shape and rotational properties of the target are well determined via thermo-physical models. We used…

The angle between the rotation and orbital axes of stars in binary systems -- the obliquity -- is an important indicator of how these systems form and evolve but few such measurements exist. We combine the sample of astrometric orbital…

Solar and Stellar Astrophysics · Physics 2023-02-08 Warrick H. Ball , Amaury H. M. J. Triaud , Emily Hatt , Martin B. Nielsen , William J. Chaplin

Short-arc orbit determination is crucial when an asteroid is first discovered. In these cases usually the observations are so few that the differential correction procedure may not converge. We have developed an initial orbit computation…

Earth and Planetary Astrophysics · Physics 2018-06-13 F. Spoto , A. Del Vigna , A. Milani , G. Tommei , P. Tanga , F. Mignard , B. Carry , W. Thuillot , P. David

Context. The rotation period of stars is an important parameter along with mass, radius, effective temperature. It is an essential parameter for any radial velocity monitoring, as stellar activity can mimic the presence of a planet at the…

Context. Mars-crossing asteroids (MCs) are a dynamically unstable group between the main belt and the near-Earth populations. Characterising the physical properties of a large sample of MCs can help to understand the original sources of…

Earth and Planetary Astrophysics · Physics 2017-07-12 Víctor Alí-Lagoa , Marco Delbo'

In this work we present SAGE (Shaping Asteroid models using Genetic Evolution) asteroid modelling algorithm based solely on photometric lightcurve data. It produces non-convex shapes, rotation axes orientati and rotational periods of…

Earth and Planetary Astrophysics · Physics 2019-04-22 P. Bartczak , G. Dudziński

The aim of our study is to characterise the spin states of the members of the Athor and Zita collisional families and test whether these members have a spin distribution consistent with a common origin from the break up of their respective…

Context: Rotation plays a key role in the life cycles of stars with masses above 8 Msun. Hence, accurate knowledge of the rotation rates of such massive stars is critical for understanding their properties and for constraining models of…

Solar and Stellar Astrophysics · Physics 2015-06-17 J. O. Sundqvist , S. Simon-Diaz , J. Puls , N. Markova

Large and publicly available astronomical archives open up new possibilities to search and study Solar System objects. However, advanced techniques are required to deal with the large amounts of data. These unbiased surveys can be used to…

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