Results 61 to 70 of about 8,745 (214)

Small‐scale elemental abundance variations in Ryugu particles from touchdown 1

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 4, Page 580-599, April 2026.
Abstract Ryugu materials closely resemble CI chondrites' mineralogical, chemical, and isotopic compositions; yet minor but resolvable differences in certain elemental abundances are evident. In this study, the bulk chemical compositions of eight individual Ryugu particles (1.5–4.3 mg) from the first touchdown site (TD1) were determined using triple ...
Karina López García   +6 more
wiley   +1 more source

Wavelet analysis of spatial coherent structures in the photosphere

open access: yes, 1999
In this work we present some applications of wavelet analysis to the dynamics of the photosphere as obtained from a good serie of high spatial resolution white light images taken at the Vacuum Tower Telescope (VTT) at the NSO/SPO in October 1996. The use
Berrilli, F   +7 more
core  

Sharks viewed through the Williamson Photosphere, 1914

open access: yes, 2014
Sharks viewed through the Williamson Photosphere [the “submarine eye”], Bahamas, 1914. Horse carcass used for bait.

core   +3 more sources

Solar Vortex Tubes. III. Vorticity and Energy Transport

open access: yesThe Astrophysical Journal
This study investigated the mechanisms of vorticity generation and the role of vortex tubes in plasma heating and energy transport. Vortex tubes were identified using the instantaneous vorticity deviation technique in the MURaM data set of a simulated ...
Suzana S. A. Silva   +7 more
doaj   +1 more source

The Relationship between Kinetic and Magnetic Helicity in Solar Active Regions

open access: yesThe Astrophysical Journal
Using Helioseismic and Magnetic Imager/Solar Dynamics Observatory data, we search for a relationship between kinetic helicity and magnetic helicity in solar active regions (ARs) using a sample of 62 ARs from 2010 May to 2015 May.
Yang Liu   +5 more
doaj   +1 more source

Undersea marine life from the Photosphere, 1914

open access: yes, 1914
Photograph, undersea marine life, taken by Gregory from Photosphere in 1914.https://digitalcommons.chapman.edu/jonathan_silent_film/2165/thumbnail ...

core   +1 more source

Subphotospheric Emission from Short Gamma-Ray Bursts: Protons Mold the Multimessenger Signals

open access: yesThe Astrophysical Journal Letters
The origin of the observed Band-like photon spectrum in short gamma-ray bursts (sGRBs) is a long-standing mystery. We carry out the first general relativistic magnetohydrodynamic simulation of an sGRB jet with initial magnetization σ _0 = 150 in ...
Annika Rudolph   +2 more
doaj   +1 more source

Flux rope formation through flux cancellation of sheared coronal arcades in a 3D convectively driven MHD simulation

open access: yesAstronomy & Astrophysics
Context. Space weather and its potential negative consequences for life on Earth have received increasing scientific attention in recent decades. In particular, predicting the onset of coronal mass ejections (CMEs) has become important from a security ...
Furuseth S. V., Aulanier G.
doaj   +1 more source

Williamson sketch showing Photosphere in operation

open access: yes, 1914
Drawing illustrating the operation of the Williamson Photosphere filming on the ocean floor.https://digitalcommons.chapman.edu/jonathan_silent_film/2225/thumbnail ...

core   +1 more source

The Striated Solar Photosphere Observed at Resolution

open access: yesThe Astrophysical Journal Letters
Striated granular edges observed in the solar photosphere represent one of the smallest-scale phenomena on the Sun. They arise from the interaction of strongly coupled hydrodynamic, magnetic, and radiative properties of the plasma.
David Kuridze   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy