Results 91 to 100 of about 1,036,703 (213)

Convection-driven Multiscale Magnetic Fields Determine the Observed Solar Disk Gamma Rays

The Astrophysical Journal
The solar disk is a continuous source of GeV–TeV gamma rays. The emission is thought to originate from hadronic Galactic cosmic rays (GCRs) interacting with the gas in the photosphere and uppermost convection zone after being reflected by solar magnetic ...
Jung-Tsung Li, Mahboubeh Asgari-Targhi, John F. Beacom, Annika H. G. Peter   +3 more
doaj   +1 more source

Simulations of Solar Granulation: I. General Properties

, 2007
Numerical simulations provide information on solar convection not available by direct observation. We present results of simulations of near surface solar convection with realistic physics -- an equation of state including ionization and three ...
R. F. Stein, Stein Dept, A. Nordlund
core  

Solar granulation from photosphere to low chromosphere observed in Ba II 4554 Å line

, 2009
Aims. The purpose of this paper is to characterize the statistical properties of solar granulation in the photosphere and low chromosphere up to 650 km. Methods.
E. Khomenko, N. Shchukina, R. Kostik
core   +1 more source

Dichotomic model for describing the solar granulation dynamics

, 2005
In the present communication, we describe a simple model for the observed solar granulation. The proposed model is a phenomenological one, and describes the dynamics of granulation as complex changing patterns observed on the Sun's surface. Based on some
Rusu, Mircea
core   +1 more source

Steam as a challenging binder for pharmaceutical wet granulation

, 2022
reservedGranulation is a process of particle size enlargement during which powder particles agglomerate through agitation or compression mechanisms. Today, granulation technology is used by a wide range of industries, including chemical, pharmaceutical ...
FONTANEL, ELENA
core  

On the Interpretation of Solar Granulation [PDF]

Monthly Notices of the Royal Astronomical Society, 1959
openaire   +2 more sources

Identifying Exoplanets with Deep Learning. VI. Enhancing Neural Network Mitigation of Stellar Activity RV Signals with Additional Metrics

The Astronomical Journal
The measurement of exoplanet masses using the radial velocity (RV) technique is currently limited by stellar activity, which introduces quasiperiodic variability signals that must be modeled and removed to enhance the sensitivity of the RV measurements ...
Naomi McWilliam, Zoë L. de Beurs, Andrew Vanderburg, Javier Viaña, Annelies Mortier, Lars A. Buchhave, Andrew Collier Cameron, Rosario Cosentino, Xavier Dumusque, Adriano Ghedina, Ben Lakeland, Marcello Lodi, Mercedes López-Morales, Dimitar Sasselov, Alessandro Sozzetti   +14 more
doaj   +1 more source

Convective blueshift inhibition from faculae to small network features

Astronomy & Astrophysics
Context. Solar granulation properties have long been known to be affected by the presence of a magnetic field, which in turn affects the convective blueshift associated with magnetic regions.
Meunier N., Sulis S.
doaj   +1 more source

Height of the granulation contrast inversion layer derived from a cross-correlation method

, 2012
Using spectroscopic data from Hinode/SOT we have obtained monochromatic images of the solar granulation at different levels in the Fe 
M. Faurobert, G. Ricort, C. Aime, S. Roudon   +3 more
core   +1 more source

Application of Deep Learning to the Classification of Stokes Profiles: From the Quiet Sun to Sunspots

The Astrophysical Journal
The morphology of circular polarization profiles from solar spectropolarimetric observations encodes information about the magnetic field strength, inclination, and line-of-sight velocity gradients.
Ryan J. Campbell, M. Mathioudakis, Carlos Quintero Noda, P. H. Keys, D. Orozco Suárez   +4 more
doaj   +1 more source