Results 21 to 30 of about 25,326 (243)

The grain size distribution of matrix in primitive chondrites

open access: yesMeteoritics &Planetary Science, Volume 58, Issue 5, Page 688-704, May 2023., 2023
Abstract The matrix of primitive chondrites is composed of submicron crystals embedded in amorphous silicates. These grains are thought to be the remains of relatively unprocessed dust from the inner regions of the protoplanetary disk. The matrix of primitive meteorites is often compared to chondritic porous interplanetary dust particles (CP‐IDPs ...
E. Vaccaro   +4 more
wiley   +1 more source

Interacting jets from binary protostars [PDF]

open access: yesAstronomy & Astrophysics, 2007
We investigate potential models that could explain why multiple proto-stellar systems predominantly show single jets. During their formation, stars most frequently produce energetic outflows and jets. However, binary jets have only been observed in a very small number of systems. We model numerically 3D binary jets for various outflow parameters.
Murphy, G. C.   +5 more
openaire   +4 more sources

Lifetime of the Outer Solar System Nebula From Carbonaceous Chondrites

open access: yesJournal of Geophysical Research: Planets, Volume 127, Issue 7, July 2022., 2022
Abstract The evolution and lifetime of protoplanetary disks (PPDs) play a central role in the formation and architecture of planetary systems. Astronomical observations suggest that PPDs evolve in two timescales, accreting onto the star for up to several million years (Myr) followed by gas dissipation within ≲1 Myr. Because solar nebula magnetic fields
Cauê S. Borlina   +3 more
wiley   +1 more source

[Retracted] Internet of Things System of Spatial Structure Sports Events Health Monitoring Based on Cloud Computing

open access: yesSecurity and Communication Networks, Volume 2022, Issue 1, 2022., 2022
At present, the health monitoring system of world sports events uses the system's on‐site information or periodic test information to evaluate the health of the system. In order to make the data more accurate, the application of cloud computing is necessary.
Rui Feng, Ning Chang, Muhammad Arif
wiley   +1 more source

NONSTEADY ACCRETION IN PROTOSTARS [PDF]

open access: yesThe Astrophysical Journal, 2009
26 pages, 9 figures, accepted by ...
Zhu, Zhaohuan   +2 more
openaire   +2 more sources

What Can Meteorites Tell Us About the Formation of Jupiter?

open access: yesAGU Advances, Volume 2, Issue 2, June 2021., 2021
Abstract Gas giants like Jupiter are a fundamental component of planetary systems, but how they formed has been uncertain. Here we discuss how paleomagnetic records in meteorites of the solar nebula may tell us about Jupiter's final growth stage. We suggest that under certain testable assumptions, the meteorite data indicate that proto‐Jupiter grew ...
Benjamin P. Weiss, William F. Bottke
wiley   +1 more source

Opacity Limit for Supermassive Protostars [PDF]

open access: yesThe Astrophysical Journal, 2018
Abstract We present a model for the evolution of supermassive protostars from their formation at until their growth to .
Fernando Becerra   +4 more
openaire   +3 more sources

Accretion onto a primordial protostar [PDF]

open access: yesNew Astronomy, 2004
New Astronomy, in press, June 2004, vol.9, pp.353 ...
Bromm, Volker, Loeb, Abraham
openaire   +2 more sources

Far infrared CO and H$_2$O emission in intermediate-mass protostars [PDF]

open access: yes, 2015
Intermediate-mass young stellar objects (YSOs) provide a link to understand how feedback from shocks and UV radiation scales from low to high-mass star forming regions.
Fuente, A.   +6 more
core   +3 more sources

Predicted Colors and Flux Densities of Protostars in the Herschel PACS and SPIRE Filters [PDF]

open access: yes, 2010
Upcoming surveys with the Herschel Space Observatory will yield far-IR photometry of large samples of young stellar objects, which will require careful interpretation.
André   +18 more
core   +2 more sources

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