Results 101 to 110 of about 21,167 (278)
APPLICATION OF GAS DYNAMICAL FRICTION FOR PLANETESIMALS. II. EVOLUTION OF BINARY PLANETESIMALS [PDF]
The Astrophysical Journal, 2016 ABSTRACT One of the first stages of planet formation is the growth of small planetesimals and their accumulation into large planetesimals and planetary embryos. This early stage occurs long before the dispersal of most of the gas from the protoplanetary disk.
Grishin, Evgeni, Perets, Hagai B.
openaire +2 more sources
26Al in the Early Solar System: Not so Unusual After All
, 2013 Recently acquired evidence shows that extrasolar asteroids exhibit over a factor of 100 variation in the iron to aluminum abundance ratio. This large range likely is a consequence of igneous differentiation that resulted from heating produced by ...
Jura, M., Xu, S., Young, E. D.
core +1 more source
The dust, planetesimals and planets of HD 38529 [PDF]
, 2007 HD 38529 is a post-main sequence G8III/IV star (3.5 Gyr old) with a planetary system consisting of at least two planets having Msin(i) of 0.8 MJup and 12.2 MJup, semimajor axes of 0.13 AU and 3.74 AU, and eccentricities of 0.25 and 0.35, respectively ...
Amaya Moro‐Martin +11 more
core +3 more sources
Initial mass function of planetesimals formed by the streaming instability [PDF]
, 2016 The streaming instability is a mechanism to concentrate solid particles into overdense filaments that undergo gravitational collapse and form planetesimals.
Urs Schafer, Chao-Chin Yang, A. Johansen
semanticscholar +1 more source
Fast Radio Bursts and Interstellar Objects
The Astrophysical JournalFast radio bursts (FRBs) are transient radio events with millisecond-scale durations and debated origins. Collisions between planetesimals and neutron stars (NSs) have been proposed as a mechanism to produce FRBs; the planetesimal strength, size, and ...
Dang Pham +4 more
doaj +1 more source
Origin of Isotopic Diversity among Carbonaceous Chondrites
The Astrophysical Journal Letters, 2023 Carbonaceous chondrites are some of the most primitive meteorites and derive from planetesimals that formed a few million years after the beginning of the solar system.
Jan L. Hellmann +7 more
doaj +1 more source
Jovian Early Bombardment: planetesimal erosion in the inner asteroid belt
, 2012 The asteroid belt is an open window on the history of the Solar System, as it preserves records of both its formation process and its secular evolution.
Coradini, Angioletta +2 more
core +1 more source
Meteoritics &Planetary Science, Volume 60, Issue 12, Page 2811-2827, December 2025.Abstract During precursor stages of planet formation, many planetesimals and planetary embryos are considered to have differentiated, forming an iron‐alloy core and silicate mantle. Percolation of liquid iron‐alloy in solid silicates is one of the major possible differentiation processes in these small bodies.
Takumi Miura +5 more
wiley +1 more source
Origin of the CC-NC isotopic dichotomy in early planetesimals (iron meteorite parent bodies) [PDF]
, 2022 Alessandro Morbidelli +6 more
openalex +1 more source
Massive Protostellar Disks as a Hot Laboratory of Silicate Grain Evolution
The Astrophysical Journal, 2023 Typical accretion disks around massive protostars are hot enough for water ice to sublimate. We here propose to utilize the massive protostellar disks for investigating the collisional evolution of silicate grains with no ice mantle, which is an ...
Ryota Yamamuro +2 more
doaj +1 more source