Results 101 to 110 of about 7,841,985 (153)

Photometric Lightcurve Analysis of Low-Period Average-Brightness Main-Belt Asteroids

open access: yes
I will be using a telescope to determine the lightcurves of asteroids in the main belt. This is crucial for understanding their shape, surface features, and rotational dynamics.
Hilliard, Joey
core   +2 more sources

The Polana–Eulalia Complex with JWST NIRSpec: Connections to Bennu, Ryugu, and Outer Solar System Bodies

open access: yesThe Planetary Science Journal
Carbon-rich (C-complex) asteroids provide insight into the early solar system, and families of C-complex asteroids serve as robust samples for learning about the internal structure of planetesimals and the materials of the protoplanetary disk.
Lucas T. McClure   +10 more
doaj   +1 more source

The Volatile Composition and Activity Evolution of Main-belt Comet 358P/PANSTARRS

open access: yesThe Planetary Science Journal
We report the detection of water vapor associated with main-belt comet 358P/PANSTARRS on UT 2024 January 8–9 using the NIRSPEC instrument on board JWST.
Henry H. Hsieh   +19 more
doaj   +1 more source

Brownian Motion of Main-belt Asteroids on Human Timescales

open access: yesThe Planetary Science Journal
High-precision astrometric data on main-belt asteroids (MBAs) enable new inferences on the gravitational and nongravitational forces present in this region.
Gary M. Bernstein
doaj   +1 more source

Space weathering of asteroids: similarities and discrepancies between Main Belt asteroids and NEOs

open access: yes, 2006
In two recent papers (Marchi et al., AJ, 131, 1138 (2006) and Lazzarin et al., Ap.J. submitted) it has been shown that the mean reflection spectral slope of most Main Belt asteroids (S,C and X complexes) is positively correlated with the age and, more ...
MAGRIN, SARA   +8 more
core   +1 more source

Taxonomy of 14 042 asteroids from Gaia DR3 reflectance spectra

open access: yesAstronomy & Astrophysics
Context. Asteroid reflectance spectra provide key constraints on surface composition. Gaia Data Release 3 (DR3) enables the study of 60 518 asteroids through near-ultraviolet (NUV) to visible reflectance spectra. Aims.
Tinaut-Ruano F.   +4 more
doaj   +1 more source

Testing the Icy Pebble Accretion Hypothesis with Primordial Main-belt Asteroids

open access: yesThe Astrophysical Journal
Large main-belt asteroids (diameter D  ≳ 120 km) exhibit a surface composition gradient as a function of heliocentric distance, ranging from anhydrous bodies to those rich in hydrated and, possibly, ammoniated materials. Their primordial nature holds key
Jinfei Yu   +2 more
doaj   +1 more source

Three Fast-spinning Medium-sized Hilda Asteroids Uncovered by TESS

open access: yesThe Astrophysical Journal Letters
Hilda asteroids, which orbit in a 3:2 resonance with Jupiter, serve as key indicators of dynamical processes in the early solar system. Their spin rates, an important probe of these mechanisms, can constrain their density and collisional evolution ...
Nóra Takács   +10 more
doaj   +1 more source

Asteroid size distributions for the main belt and for asteroid families [PDF]

open access: yesBulletin of Taras Shevchenko National University of Kyiv. Astronomy, 2017
A. Kazantzev, L. Kazantzeva
openaire   +1 more source

3 μm Phase Curves of Main-belt Asteroids from NEOWISE Photometry

open access: yesThe Planetary Science Journal
The shapes of asteroid phase curves are influenced by the physical properties of asteroid surfaces. The variation of an asteroid’s brightness as a function of the solar phase angle can tell us about surface properties such as grain size distribution ...
Matthew Varakian   +3 more
doaj   +1 more source

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