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Exoplanet research focusing on the characterization of super-Earths is currently limited to those handful targets orbiting bright stars that are amenable to detailed study. This Letter proposes to look at alternative avenues to probe the…

Earth and Planetary Astrophysics · Physics 2015-06-19 Brice-Olivier Demory

We present the preliminary analysis of over 1739 known and 349 candidate Jovian Trojans observed by the NEOWISE component of the Wide-field Infrared Survey Explorer (WISE). With this survey the available diameters, albedos and beaming…

The Wide-field Infrared Survey Explorer (WISE) observed 52 Centaurs and Scattered Disk Objects in the thermal infrared, including the 15 discoveries that were new. We present analyses of these observations to estimate sizes and mean optical…

2013 FY27 is the ninth intrinsically brightest Trans-Neptunian Object (TNO). We observed 2013 FY27 at thermal wavelengths with ALMA and in the optical with Magellan to determine its size and albedo for the first time and compare it to other…

Earth and Planetary Astrophysics · Physics 2018-11-28 Scott Sheppard , Yanga Fernandez , Arielle Moullet

We seek evidence of the Yarkovsky effect among Near Earth Asteroids (NEAs) by measuring the Yarkovsky-related orbital drift from the orbital fit. To prevent the occurrence of unreliable detections we employ a high precision dynamical model,…

Earth and Planetary Astrophysics · Physics 2015-06-12 D. Farnocchia , S. R. Chesley , D. Vokrouhlicky , A. Milani , F. Spoto

We present updated/new thermal model fits for 478 Jovian Trojan asteroids observed with the Wide-field Infrared Survey Explorer (WISE). Using the fact that the two shortest bands used by WISE, centered on 3.4 and $4.6\mu$m, are dominated by…

Earth and Planetary Astrophysics · Physics 2015-06-11 Tommy Grav , Amy K. Mainzer , James M. Bauer , Joe R. Masiero , Carrie R. Nugent

We present a new space mission concept that is capable of finding, detecting, and tracking 90% of near-Earth objects (NEO) with H magnitude of $\rm H\leq22$ (i.e., $\sim$140 m in size) that are potentially hazardous to the Earth. The new…

Instrumentation and Methods for Astrophysics · Physics 2017-07-24 Michael Shao , Slava G. Turyshev , Sara Spangelo , Thomas Werne , Chengxing Zhai

Small near-Earth asteroids (>20 meters) are interesting because they are progenitors for meteorites in our terrestrial collection. Crucial to our understanding of the effectiveness of our atmosphere in filtering low-strength impactors is…

Physical characterization of Trans-Neptunian objects, a primitive population of the outer solar system, may provide constraints on their formation and evolution. The goal of this work is to characterize a set of 15 scattered disk (SDOs) and…

NEO Surveyor will detect asteroids and comets using mid-infrared thermal emission, however ground-based followup resources will require knowledge of the expected visible light brightness in order to plan characterization observations. Here…

Earth and Planetary Astrophysics · Physics 2024-09-10 Joseph R. Masiero , Tyler Linder , Amy Mainzer , Dar W. Dahlen , Yuna G. Kwon

We present thermal observations of 44 Jovian Trojan asteroids with diameters (D) ranging from 5 to 24 km. All objects were observed at a wavelength of 24 microns with the Spitzer Space Telescope. Measurements of the thermal emission and of…

Earth and Planetary Astrophysics · Physics 2009-06-10 Y. R. Fernandez , D. Jewitt , J. E. Ziffer

Light from `point sources' such as supernovae is observed with a beam width of order of the sources' size - typically less than 1 AU. Such a beam probes matter and curvature distributions that are very different from coarse-grained…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Chris Clarkson , George Ellis , Andreas Faltenbacher , Roy Maartens , Obinna Umeh , Jean-Philippe Uzan

Laser ablation of a Near-Earth Object (NEO) on a collision course with Earth produces a cloud of ejecta which exerts a thrust on the NEO, deflecting it from its original trajectory. Ablation may be performed from afar by illuminating an…

Earth and Planetary Astrophysics · Physics 2016-03-15 Qicheng Zhang , Kevin J. Walsh , Carl Melis , Gary B. Hughes , Philip M. Lubin

The NASA Orbital Debris Observatory (NODO) astronomical survey uses a transit 3-m liquid mirror telescope to observe a strip of sky in 20 narrow-band filters. In this article, we analyze a subset of data from the 1996 observing season. The…

Astrophysics · Physics 2016-08-30 R. Cabanac , E. F. Borra , M. Beauchemin

The observed near-Earth asteroid population contains very few objects with small perihelion distances, say, q<=0.2 au. NEAs that currently have orbits with larger q might be hiding a past evolution during which they have approached closer…

Earth and Planetary Astrophysics · Physics 2021-08-04 Athanasia Toliou , Mikael Granvik , Georgios Tsirvoulis

ESA's Flyeye telescope is designed with a very large field of view (FoV) in order to scan the sky for unknown near-Earth Objects (NEOs). For typical exposure times of 40 s, the telescope is able to detect objects with a limiting magnitude…

Earth and Planetary Astrophysics · Physics 2019-03-21 Olga Ramirez Torralba , Rüdiger Jehn , Detlef Koschny , Michael Frühauf , Laura S. Jehn , Alexander Praus

Gaia Data Release 2 includes observational data for 14,099 pre-selected asteroids. From the sparsely sampled G band photometry, we derive lower-limit lightcurve amplitudes for 11,665 main belt asteroids in order to provide constraints on…

Earth and Planetary Astrophysics · Physics 2018-09-12 Michael Mommert , Andrew McNeill , David E. Trilling , Nicholas Moskovitz , Marco Delbo'

We present a reanalysis of the relationship between asteroid albedo and polarization properties using the albedos derived from the Wide-field Infrared Survey Explorer. We find that the function that best describes this relation is a…

Earth and Planetary Astrophysics · Physics 2015-06-04 Joseph R. Masiero , A. K. Mainzer , T. Grav , J. M. Bauer , E. L. Wright , R. S. McMillan , D. J. Tholen , A. W. Blain

We present preliminary diameters and albedos for 13511 MBAs that were observed during the 3-Band Cryo phase of the WISE survey (after the outer cryogen tank was exhausted) and as part of the NEOWISE Post-Cryo Survey (after the inner cryogen…

Earth and Planetary Astrophysics · Physics 2015-06-11 Joseph R. Masiero , A. K. Mainzer , T. Grav , J. M. Bauer , R. M. Cutri , C. Nugent , M. S. Cabrera

We investigated the population of asteroids in comet-like orbits using available asteroid size and albedo catalogs of data taken with the Infrared Astronomical Satellite, AKARI, and the Wide-field Infrared Survey Explorer on the basis of…

Earth and Planetary Astrophysics · Physics 2015-06-19 Yoonyoung Kim , Masateru Ishiguro , Fumihiko Usui