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Recently published space-based observations of main-belt asteroids with the AKARI telescope provide a full description of the 3 {\mu}m band, related to the presence of OH bearing minerals. Here, we use laboratory spectra of carbonaceous…

Earth and Planetary Astrophysics · Physics 2020-11-03 Pierre Beck , Jolantha Eschrig , Sandra Potin , Trygve Prestgard , Lydie Bonal , Eric Quirico , Bernard Schmitt

Gaia is an astrometric mission that will be launched in 2013 and set on L2 point of Lagrange. It will observe a large number of Solar System Objets (SSO) down to magnitude 20. The Solar System Science goal is to map thousand of Main Belt…

Earth and Planetary Astrophysics · Physics 2016-08-30 D. Bancelin , D. Hestroffer , W. Thuillot

The study of asteroid families has provided tremendous insight into the forces that sculpted the main belt and continue to drive the collisional and dynamical evolution of asteroids. The identification of asteroid families within the NEO…

Astrophysics · Physics 2009-11-11 Hai Fu , Robert Jedicke , Daniel D. Durda , Ronald Fevig , James V. Scotti

A stable population of objects co-orbiting with Venus was recently hypothesized in order to explain the existence of Venus's co-orbital dust ring. We conducted a 5 day twilight survey for these objects with the Cerro-Tololo Inter-American…

Earth and Planetary Astrophysics · Physics 2020-08-06 Petr Pokorny , Marc J. Kuchner , Scott S. Sheppard

Dormant comets in the near-Earth object (NEO) population are thought to be involved in the terrestrial accretion of water and organic materials. Identification of dormant comets is difficult as they are observationally indistinguishable…

Earth and Planetary Astrophysics · Physics 2016-09-07 Quan-Zhi Ye , Peter G. Brown , Petr Pokorný

We investigate the spectra, material properties, and orbital distribution of millimeter- to decimeter-sized meteoroids. Our study aims to distinguish the characteristics of populations of differently sized meteoroids and reveal the…

Earth and Planetary Astrophysics · Physics 2019-09-11 Pavol Matlovič , Juraj Tóth , Regina Rudawska , Leonard Kornoš , Adriana Pisarčíková

We extend the most recent orbital and absolute magnitude Near Earth Object (NEO) model (Granvik et al., 2018) to provide a statistical description of NEO geometric albedos. Our model is calibrated on NEOWISE albedo data for the NEO…

We report results of a four-year survey using Electron Multiplied Charged Coupled Device (EMCCD) cameras recording 34761 two-station video meteor events complete to a limiting magnitude of +6. The survey goal was to characterize probable…

Earth and Planetary Astrophysics · Physics 2021-10-04 Tristan Mills , P. G. Brown , M. J. Mazur , D. Vida , Peter S. Gural , Althea V. Moorhead

Metal-rich near-Earth asteroids (NEAs) represent a small fraction of the NEA population that is mostly dominated by S- and C-type asteroids. Because of this, their identification and study provide us with a unique opportunity to learn more…

Earth and Planetary Astrophysics · Physics 2021-09-30 Juan A. Sanchez , Vishnu Reddy , William F. Bottke , Adam Battle , Benjamin Sharkey , Theodore Kareta , Neil Pearson , David C. Cantillo

Using the Wide Field Camera for the United Kingdom Infrared Telescope, we measure the near-infrared colors of near-Earth objects (NEOs) in order to put constraints on their taxonomic classifications. The rapid-response character of our…

Earth and Planetary Astrophysics · Physics 2016-04-06 M. Mommert , D. E. Trilling , D. Borth , R. Jedicke , N. Butler , M. Reyes-Ruiz , B. Pichardo , E. Petersen , T. Axelrod , N. Moskovitz

Asteroids with low orbital perihelion distances experience extreme heating from the Sun that can modify their surfaces and trigger non-typical activity mechanisms. These objects are generally difficult to observe from ground-based…

Earth and Planetary Astrophysics · Physics 2024-04-24 Joseph R. Masiero , Yuna G. Kwon , Dar W. Dahlen , Frank J. Masci , Amy K. Mainzer

Aims: Our objectives were first to evaluate the possibility for using the NUV absorption as diagnostics of hydrated minerals based on the recent datasets of primitive asteroids and hydrated carbonaceous chondrites, and second to investigate…

Earth and Planetary Astrophysics · Physics 2023-04-26 Eri Tatsumi , Faith Vilas , Julia de León , Marcel Popescu , Sunao Hasegawa , Takahiro Hiroi , Fernando Tinaut-Ruano , Javier Licandro

A considerable amount of information regarding the processes that occurred during the accretion of the early planetesimals is still present among the small bodies of our solar system. A review of our current knowledge of the density of…

Earth and Planetary Astrophysics · Physics 2015-06-04 Benoit Carry

Thermal infrared observations are the most effective way to measure asteroid diameter and albedo for a large number of near-Earth objects. Major surveys like NEOWISE, NEOSurvey, ExploreNEOs, and NEOLegacy find a small fraction of high…

The cryogenic WISE mission in 2010 was extremely sensitive to asteroids and not biased against detecting dark objects. The albedos of 428 Near Earth Asteroids (NEAs) observed by WISE during its fully cryogenic mission can be fit quite well…

Earth and Planetary Astrophysics · Physics 2016-09-21 Edward L. Wright , Amy Mainzer , Joseph Masiero , Tommy Grav , James Bauer

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

The catalog of km-sized near-Earth objects (NEOs) is nearly complete. Typical impact monitoring analyses search for possible impacts over the next 100 years and none of the km-sized objects represent an impact threat over that time…

Earth and Planetary Astrophysics · Physics 2023-06-28 Oscar Fuentes-Muñoz , Daniel J. Scheeres , Davide Farnocchia , Ryan S. Park

We have used Minor Planet Center data and tools to explore the discovery circumstances and properties of the currently known population of over 10,000 NEAs, and to quantify the challenges for follow-up from ground-based telescopes. The…

Earth and Planetary Astrophysics · Physics 2015-05-27 J. L. Galache , C. L. Beeson , K. K. McLeod , M. Elvis

Context. Orbital similarity measures, such as the D-values, have been extensively used in meteor science to identify meteoroid streams and associate meteorite falls with near-Earth objects (NEOs). However, the chaotic nature of near-Earth…

Earth and Planetary Astrophysics · Physics 2024-12-25 Patrick M. Shober , Ariane Courtot , Jeremie Vaubaillon

We present new results of the observing program which is a part of the NEOROCKS project aimed to improve knowledge on physical properties of near-Earth Objects (NEOs) for planetary defense. Photometric observations were performed using the…