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Related papers: Hunting for Hydrated Minerals on Trans-Neptunian O…

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We present JWST observations of the near-Earth asteroid (3200) Phaethon using the Near-Infrared Camera (NIRCam), Near-Infrared Spectrograph (NIRSpec), and Mid-Infrared Instrument (MIRI) to further investigate the composition of Phaethon's…

In the framework of a 30-night spectroscopic survey of small near-Earth asteroids (NEAs) we present new results regarding the identification of olivine-rich objects. The following NEAs were classified as A-type using visible spectra…

Earth and Planetary Astrophysics · Physics 2018-03-15 M. Popescu , D. Perna , M. A. Barucci , S. Fornasier , A. Doressoundiram , C. Lantz , F. Merlin , I. N. Belskaya , M. Fulchignoni

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

Here were report on a laboratory study aiming to reproduce specificities of near-Earth Asteroid. We study how the elevated surface temperature, their surface roughness (rock or regolith), as well as observation geometry can affect the…

Earth and Planetary Astrophysics · Physics 2019-07-04 S. Potin , P. Beck , B. Schmitt , F. Moynier

Colors of Trans Neptunian Objects (TNOs) are used to study the evolutionary processes of bodies in the outskirts of the Solar System, and to test theories regarding their origin. Here I describe a search for serendipitous Sloan Digital Sky…

Earth and Planetary Astrophysics · Physics 2015-06-04 Eran O. Ofek

The solar system's distant reaches exhibit a wealth of anomalous dynamical structure, hinting at the presence of a yet-undetected, massive trans-Neptunian body - Planet 9. Previous analyses have shown how orbital evolution induced by this…

Earth and Planetary Astrophysics · Physics 2024-04-18 Konstantin Batygin , Alessandro Morbidelli , Michael E. Brown , David Nesvorny

Based on the GW dispersion relation raised in [1], we investigate the possible reflection of gravitational wave (GW) by superfluidity (SF) in the neutron star, provided its high density and dissipationless properties. Following this…

General Relativity and Quantum Cosmology · Physics 2022-10-20 Yunjing Gao , Jiahao Yang , Zhenyu Zhu , Yosuke Mizuno , Jianda Wu

Aims. We seek to constrain the surface composition of the Trans-Neptunian Object (90482) Orcus and its small satellite Vanth, as well as their mass and density. Methods. We acquired near-infrared spectra (1.4-2.4 {\mu}m) of (90482) Orcus…

Earth and Planetary Astrophysics · Physics 2015-05-30 B. Carry , D. Hestroffer , F. DeMeo , A. Thirouin , J. Berthier , P. Lacerda , B. Sicardy , A. Doressoundiram , C. Dumas , D. Farrelly , T. G. Muller

We present long-term BVRI observations of 2010 WG9, an ~100-km diameter trans-Neptunian object (TNO) with an extremely high inclination of 70 deg discovered by the La Silla - QUEST southern sky survey. Most of the observations were obtained…

Earth and Planetary Astrophysics · Physics 2015-06-16 David Rabinowitz , Megan E. Schwamb , Elena Hadjiyska , Suzanne Tourtellotte , Patricio Rojo

The outer solar system is populated by a broad aggregate of minor bodies, which occupy orbits whose dynamical character ranges from long-term stable to rapidly diffusive. We investigate the chaotic properties of known distant…

Earth and Planetary Astrophysics · Physics 2025-04-23 Gabriele Pichierri , Konstantin Batygin

We present a new and extended transmission spectrum of the warm Neptune HAT-P-26b spanning wavelengths between 0.29 - 5.0 microns. This spectrum is derived from new HST STIS G430L observations from the PanCET program, a reanalysis of the…

We present new groundbased 3 $\mu$m spectra of 14 young stellar objects with H_2O ice absorption bands. The broad absorption feature at 3.47 $\mu$m was detected toward all objects and its optical depth is correlated with the optical depth…

Astrophysics · Physics 2009-10-31 T. Y. Brooke , K. Sellgren , T. R. Geballe

The classical Kuiper belt contains objects both from a low-inclination, presumably primordial, distribution and from a high-inclination dynamically excited population. Based on a sample of classical TNOs with observations at thermal…

The orbital element distribution of trans-Neptunian objects (TNOs) with large pericenters has been suggested to be influenced by the presence of an undetected, large planet at >200 AU from the Sun. To find additional observables caused by…

Earth and Planetary Astrophysics · Physics 2017-01-04 S. M. Lawler , C. Shankman , N. Kaib , M. T. Bannister , B. Gladman , J. J. Kavelaars

In the last decades Near-Earth Objects (NEOs) have become very important targets to study, since they can give us clues to the formation, evolution and composition of the Solar System. In addition, they may represent either a threat to…

Earth and Planetary Astrophysics · Physics 2014-09-24 S. Ieva , E. Dotto , D. Perna , M. A. Barucci , F. Bernardi , S. Fornasier , F. De Luise , E. Perozzi , A. Rossi , J. R. Brucato

Recent transit observations of K2-18b and TOI-270d revealed strong molecular absorption signatures, lending credence to the idea that temperate sub-Neptunes (T$_\mathrm{eq}$=250-400K) have upper atmospheres mostly free of aerosols. These…

We present the first comprehensive look at the $0.35-5$ $\mu$m transmission spectrum of the warm ($\sim 800$ K) Neptune HAT-P-11b derived from thirteen individual transits observed using the Hubble and Spitzer Space Telescopes. Along with…

Space missions to NEOs are being planned at all major space agencies, and recently a manned mission to an NEO was announced as a NASA goal. Efforts to find and select suitable targets (plus backup targets) are severely hampered by our lack…