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Related papers: A Near-Infrared Search for Silicates in Jovian Tro…

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We have observed well-sampled phase curves for nine Trojan asteroids in B-, V-, and I-bands. These were constructed from 778 magnitudes taken with the 1.3-m telescope on Cerro Tololo as operated by a service observer for the SMARTS…

Earth and Planetary Astrophysics · Physics 2015-05-14 Martha W. Schaefer , Bradley E. Schaefer , David L. Rabinowitz , Suzanne W. Tourtellotte

We study orbital and physical properties of Trojan asteroids of Jupiter. We try to discern all families previously discussed in literature, but we conclude there is only one significant family among Trojans, namely the cluster around…

Earth and Planetary Astrophysics · Physics 2011-09-07 Miroslav Brož , Jakub Rozehnal

Sparse and serendipitous asteroid photometry obtained by wide field surveys such as the Asteroid Terrestrial-impact Last Alert System (\ATLAS) is a valuable resource for studying the properties of large numbers of small Solar System bodies.…

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 measured 3-micron reflectance spectra of 21 meteorites that represent all carbonaceous chondrite types available in terrestrial meteorite collections. The measurements were conducted at the Laboratory for Spectroscopy under Planetary…

Earth and Planetary Astrophysics · Physics 2019-06-26 Driss Takir , Karen R. Stockstill-Cahill , Charles A. Hibbitts , Yusuke Nakauchi

We report observations of the Jupiter Trojan asteroid (3548) Eurybates and its satellite Queta with the Hubble Space Telescope and use these observations to perform an orbital fit to the system. Queta orbits Eurybates with a semimajor axis…

Earth and Planetary Astrophysics · Physics 2021-06-07 M. E. Brown , H. F. Levison , K. S. Noll , R. Binzel , M. W. Buie , W. Grundy , S. Marchi , C. B. Olkin , J. Spencer , T. S. Statler , H. Weaver

We present the spectral characterization of Jupiter Trojans using data from the Gaia mission DR3 spectral catalog (320 spectra of good quality) and from the literature. Gaia spectrophotometry is available in 16 spectrophotometric points…

Earth and Planetary Astrophysics · Physics 2025-10-22 Sonia Fornasier , Noemie El-Bez-Sebastien

We present the Spitzer Space Telescope Infrared Spectrograph spectrum of the Orion A protostar HOPS-68. The mid-infrared spectrum reveals crystalline substructure at 11.1, 16.1, 18.8, 23.6, 27.9, and 33.6 microns superimposed on the broad…

M-type asteroids, as defined in the Tholen taxonomy (Tholen, 1984), are medium albedo bodies supposed to have a metallic composition and to be the progenitors both of differentiated iron-nickel meteorites and enstatite chondrites. We…

Earth and Planetary Astrophysics · Physics 2015-05-19 S. Fornasier , B. E. Clark , E. Dotto , A. Migliorini , M. Ockert-Bell , M. A. Barucci

We observed potentially hazardous asteroid (PHA) 2008 EV5 in the visible (0.30-0.92 microns) and near-IR (0.75-2.5 microns) wavelengths to determine its surface composition. This asteroid is especially interesting because it is a potential…

Earth and Planetary Astrophysics · Physics 2015-06-11 Vishnu Reddy , Lucille Le Corre , Michael Hicks , Kenneth Lawrence , Bonnie Buratti , Paul Abell , Michael Gaffey , Paul Hardersen

We conducted a two-band imaging survey observation using the Subaru Telescope and its wide-field camera, Suprime-Cam, to study the visible colors and size distribution of Jupiter's Trojan asteroids. The survey covered an area around…

Earth and Planetary Astrophysics · Physics 2026-03-18 Fumi Yoshida , Tsuyoshi Terai , Keiji Ohtsuki

Trojan asteroids orbit in the Lagrange points of the system Sun-planet-asteroid. Their dynamical stability make their physical properties important proxies for the early evolution of our solar system. To study their origin, we want to…

Earth and Planetary Astrophysics · Physics 2016-01-13 S. Bagnulo , I. N. Belskaya , A. Stinson , A. Christou , G. B. Borisov

We present the results of an optical lightcurve survey of 114 Jovian Trojan asteroids conducted to determine the fraction of contact binaries. Sparse-sampling was used to assess the photometric range of the asteroids and those showing the…

Astrophysics · Physics 2008-11-26 Rita K. Mann , David Jewitt , Pedro Lacerda

We present the first ultraviolet spectra of Jupiter Trojans. These observations were carried out using the Space Telescope Imaging Spectrograph on the Hubble Space Telescope and cover the wavelength range 200-550 nm at low resolution. The…

Earth and Planetary Astrophysics · Physics 2019-04-17 Ian Wong , Michael E. Brown , Jordana Blacksberg , Bethany L. Ehlmann , Ahmed Mahjoub

Hilda asteroids and Jupiter Trojans are two low-albedo (p$_{\rm v}$ ~ 0.07) populations for which the Nice model predicts an origin in the primordial Kuiper Belt region. However, recent surveys by WISE and the Spitzer Space Telescope (SST)…

Earth and Planetary Astrophysics · Physics 2014-09-05 Michaël Marsset , Pierre Vernazza , Florian Gourgeot , Christophe Dumas , Mirel Birlan , Philippe Lamy , Richard P. Binzel

We use ALMA measurements of 870 $\mu$m thermal emission from a sample of mid-sized (15-40 km diameter) Jupiter Trojan asteroids to search for high albedo objects in this population. We calculate the diameters and albedos of each object…

Earth and Planetary Astrophysics · Physics 2022-07-06 Anna M. Simpson , Michael E. Brown , Madeline J. Schemel , Bryan J. Butler

We present a deep imaging and spectroscopic search for emission from (3200) Phaethon, a large near-Earth asteroid that appears to be the parent of the strong Geminid meteoroid stream, using the 4.3 m Lowell Discovery Telescope. Observations…

Earth and Planetary Astrophysics · Physics 2020-11-23 Quanzhi Ye , Matthew M. Knight , Michael S. P. Kelley , Nicholas A. Moskovitz , Annika Gustafsson , David Schleicher

Aims. The goal of this investigation is to determine the origin and surface composition of the asteroid (121514) 1999 UJ7, the only currently known L4 Martian Trojan asteroid. Methods. We have obtained visible reflectance spectra and…

Earth and Planetary Astrophysics · Physics 2018-10-24 G. Borisov , A. A. Christou , F. Colas , S. Bagnulo , A. Cellino , A. Dell'Oro

Collisional families offer a unique window into the interior composition of asteroid populations. Previous dynamical studies of the Jupiter Trojans have uncovered a handful of potential collisional families, two of which have been…

Earth and Planetary Astrophysics · Physics 2022-12-19 Ian Wong , Michael E. Brown

Non-differentiated asteroids are among the most primitive objects in our Solar System, having escaped intense heating mechanisms. To help us understand the information contained in reflectance spectra measured on asteroids, we analyzed…

Earth and Planetary Astrophysics · Physics 2020-09-30 Jolantha Escrig , Lydie Bonal , Pierre Beck , Trygve Prestgard