Results 51 to 60 of about 15,631 (239)

The impact of main belt asteroids on infrared--submillimetre photometry and source counts [PDF]

, 2007
> Among the components of the infrared and submillimetre sky background, the closest layer is the thermal emission of dust particles and minor bodies in the Solar System.
A. Pál, Belton, Cs. Kiss, Fazio, Harris, Jeong, Jeong, Kenyon, Kiss, Kiss, Lagache, Lagache, Lebofsky, Meadows, Müller, Negrello, P. Ábrahám, Pilbratt, Rieke, Roques, T. G. Müller, Tauber, Tedesco, Tedesco, Werner, Ábrahám   +25 more
core   +2 more sources

NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos [PDF]

, 2015
We present preliminary diameters and albedos for 7,959 asteroids detected in the first year of the NEOWISE Reactivation mission. 201 are near-Earth asteroids (NEAs). 7,758 are Main Belt or Mars-crossing asteroids.
Bauer, J., Cutri, R. M., Grav, T., Kramer, E., Mainzer, A., Masiero, J., Nugent, C. R., Sonnett, S., Stevenson, R., Wright, E. L.   +9 more
core   +2 more sources

The solar system Fe/Mg ratio

Meteoritics &Planetary Science, Volume 60, Issue 3, Page 529-543, March 2025.
Abstract Solar wind Fe and Mg fluences (atoms/cm2) were measured from Genesis collectors. Fe and Mg have similar first ionization potentials and solar wind Fe/Mg should equal the solar ratio. Solar wind Fe/Mg is a more valid measure of solar composition than CI chondrites and can be measured more accurately than spectroscopic photospheric abundances ...
D. S. Burnett, A. J. G. Jurewicz, D. S. Woolum, Y. Guan, V. S. Heber, R. Hervig, M. Humayun, K. D. McKeegan, L. R. Nittler, C. T. Olinger, D. B. Reisenfeld, J. Wang   +11 more
wiley   +1 more source

Compositional Diversity Among Primitive Asteroids

, 2018
Spectroscopic observations from the ultraviolet to the mid-infrared have revealed new and diagnostic differences among primitive asteroids. We review the spectral characteristics of these asteroids and their inferred compositional and physical properties.
A'Hearn, Abell, Alí-Lagoa, Alí-Lagoa, Barucci, Barucci, Binzel, Bottke, Bottke, Bottke, Bottke, Bradley, Brunetto, Brunetto, Bunch, Campins, Campins, Campins, Campins, Carvano, Clark, Cloutis, Cloutis, Cloutis, Cloutis, Cohen, de Leuw, de León, de León, de León, Delbo, Dermott, Dotto, Dotto, Draine, Dykhuis, Emery, Feierberg, Feierberg, Ferriere, Fornasier, Fornasier, Gaffey, Gaffey, Gounelle, Hanner, Harker, Hendrix, Hendrix, Hendrix, Henning, Hiroi, Hiroi, Jenniskens, Johnson, Kanuchova, Kelley, Landsman, Landsman, Landsman, Lantz, Lantz, Lantz, Lauretta, Lazzarin, Lebofsky, Licandro, Licandro, Lim, Lisse, Marchi, Marchis, Mazanek, McAdam, McSween, McSween, Morate, Morate, Morlok, Müller, Nesvorný, Nesvorný, Nuth, Olofsson, Oszkiewicz, Papoular, Papoular, Pieters, Pinilla-Alonso, Pinilla-Alonso, Reddy, Rivkin, Rivkin, Rivkin, Rivkin, Rivkin, Rivkin, Roettger, Schnaiter, Stecher, Takahashi, Takir, Takir, Tholen, Tomeoka, Tomeoka, Tsuda, Velbel, Vernazza, Vernazza, Vilas, Vilas, Vilas, Vilas, Vilas, Walsh, Waszczak, Ziffer   +117 more
core   +1 more source

Statistical analysis of C and S Main Belt Asteroids [PDF]

Icarus, 2010
In this paper we compare the observable properties of 962 numbered MBAs (Main Belt Asteroids) of Tholen/SMASSII C and S class, with diameter in the range 1-500 km, not belonging to families or binary systems. Above 20 km, the diameters distributions of C and S are similar while under 20 km there is a clear observative bias in favour of small S ...
openaire   +3 more sources

Escape of asteroids from the main belt [PDF]

Astronomy & Astrophysics, 2017
Aims. We locate escape routes from the main asteroid belt, particularly into the near-Earth-object (NEO) region, and estimate the relative fluxes for different escape routes as a function of object size under the influence of the Yarkovsky semimajor-axis drift.Methods.
Mikael Granvik, Alessandro Morbidelli, David Vokrouhlický, William F. Bottke, David Nesvorný, Robert Jedicke   +5 more
openaire   +2 more sources

VIS‐to‐MIR reflectance and Raman spectroscopy of the CM2 NWA 12184 carbonaceous chondrite

Meteoritics &Planetary Science, Volume 60, Issue 3, Page 570-595, March 2025.
Abstract The spectral analysis of CM meteorites can help to constrain the mineralogical composition of their parent body, the C‐type asteroids. The CM2 NWA 12184 was spectrally examined employing seven complementary techniques at different spatial resolutions, including VIS‐to‐MIR reflectance and Raman spectroscopy.
A. Galiano, F. Dirri, M. Ferrari, C. Carli, E. Bruschini, G. Filacchione, G. Piccioni, E. Palomba, S. Stefani, A. Raponi, M. Ciarniello, M. E. Palumbo, C. Scirè Scappuzzo, G. Baratta, R. G. Urso, L. Inno   +15 more
wiley   +1 more source

Low-thrust tour of the main belt asteroids [PDF]

Advances in Space Research, 2018
This work presents some initial results on a possible low-thrust tour of the main asteroid belt. The asteroids are visited through a series of fly-by’s to be completed within a given time-frame and limit on the mass of the spacecraft at launch. The asteroids to be visited are automatically selected out of a large database of possible candidates.
Di Carlo, Marilena, Vasile, Massimiliano, Dunlop, Jamie   +2 more
openaire   +7 more sources

Transformer-based Approach for Accurate Asteroid Spectra Taxonomy and Albedo Estimation

The Astronomical Journal
China plans to launch a probe (Tianwen-2) around 2025, mainly to explore the near-Earth asteroid 2016 HO3 (469219, Kamo’oalewa). The mission involves close-range exploration, landing, and mining operations that require three-dimensional modeling of the ...
Yijun Tang, Yunxiao Jiang, Yuxiang Feng, Xiaoming Zhang, Xiaojun Jiang   +4 more
doaj   +1 more source

Light curve analysis of main belt asteroids 4747, 5255, 11411, 15433, 17866

Open Astronomy, 2023
The main belt asteroids 4747, 5255, 11411, 15433, and 17866 were studied at the Baldone Astrophysical Observatory in the time span range 2018–2022. The obtained light curve data together with published Minor Planet Center data are analyzed with Fourier ...
Eglitis Ilgmars, Kristers Nagainis
doaj   +1 more source