Results 71 to 80 of about 6,507 (247)

Inferring the Solar Meridional Circulation Flow Profile by Applying Bayesian Methods to Time–Distance Helioseismology

The Astrophysical Journal, 2023
Mapping the large-scale subsurface plasma flow profile within the Sun has been attempted using various methods for several decades. One such flow in particular is the meridional circulation, for which numerous studies have been published.
Aleczander Herczeg, Jason Jackiewicz
doaj   +1 more source

Testing Helioseismic-Holography Inversions for Supergranular Flows Using Synthetic Data [PDF]

, 2012
Supergranulation is one of the most visible length scales of solar convection and has been studied extensively by local helioseismology. We use synthetic data computed with the Seismic Propagation through Active Regions and Convection (SPARC) code to ...
Birch, A. C., Braun, D. C., Dombroski, D. E., Hanasoge, S. M.   +3 more
core   +2 more sources

Reconstruction of Solar Subsurfaces by Local Helioseismology

, 2016
Local helioseismology has opened new frontiers in our quest for understanding of the internal dynamics and dynamo on the Sun. Local helioseismology reconstructs subsurface structures and flows by extracting coherent signals of acoustic waves traveling ...
A. C. Birch, A. C. Birch, A. C. Birch, A. C. Birch, A. C. Birch, A. C. Birch, A. G. Kosovichev, A. G. Kosovichev, A. G. Kosovichev, A. G. Kosovichev, A. G. Kosovichev, A. G. Kosovichev, A. G. Kosovichev, A. G. Kosovichev, B. Jacobsen, D. A. Haber, D. A. Haber, D. O. Gough, I. N. Kitiashvili, J. Reiter, J. Schou, J. Zhao, J. Zhao, J. Zhao, Junwei Zhao, K. V. Parchevsky, K. V. Parchevsky, L. Gizon, Michal Švanda, Michal Švanda, Michal Švanda, P. H. Scherrer, R. Howard, S. Couvidat, S. Godier, T. Hartlep, T. L. Duvall Jr, Y. Liu   +37 more
core   +1 more source

Helioseismology can test the Maxwell-Boltzmann distribution [PDF]

, 1998
Nuclear reactions in stars occur between nuclei in the high-energy tail of the energy distribution and are sensitive to possible deviations from the standard equilibrium thermal-energy distribution.
Anders, B. Ricci, Bahcall, Bahcall, Bahcall, Basu, Basu, Castellani, Castellani, Chaboyer, Clayton, Clayton, Cox, Degl'Innocenti, Degl'Innocenti, Degl'Innocenti, Dziembowski, G. Fiorentini, Kamionkowski, Kaniadakis, Kaniadakis, Kaniadakis, M. Lissia, P. Quarati, Quarati, Richard, S. Degl'Innocenti, Thoul, Tsallis   +28 more
core   +2 more sources

Removal of Active Region Inflows Reveals a Weak Solar Cycle Scale Trend in the Near-surface Meridional Flow

The Astrophysical Journal, 2023
Using time–distance local helioseismology flow maps within 1 Mm of the solar photosphere, we detect inflows toward activity belts that contribute to solar-cycle scale variations in the near-surface meridional flow. These inflows stretch out as far as 30°
Sushant S. Mahajan, Xudong Sun, Junwei Zhao   +2 more
doaj   +1 more source

Prospects for studying the solar CNO cycle by means of a lithium neutrino detector [PDF]

, 2008
Lithium detectors have a high sensitivity to CNO neutrinos from the Sun. The present experimental data and prospects for future experiments on the detection of CNO neutrinos are discussed. A nonstationary case is considered when the flux of 13N neutrinos
A Kopylov, Bahcall J N, Bahcall J N, Basu S Antia H M, Borexino Collaboration, Chaplin W J, Couture A, Delahaye F, Haxton W Serenelli A M, Kuzmin V A Zatsepin G, Mathur S Eff-Darwich A Garcia R A Turck-Chieze S, Palacios A Talon S Turck-Chieze S Charbonnel C, V Petukhov   +12 more
core   +1 more source

Solar Interior Rotation and its Variation

Living Reviews in Solar Physics, 2009
This article surveys the development of observational understanding of the interior rotation of the Sun and its temporal variation over approximately forty years, starting with the 1960s attempts to determine the solar core rotation from oblateness and ...
Howe Rachel
doaj  

Solar Cycle Variations of Rotation and Asphericity in the Near-Surface Shear Layer

, 2018
The precise shape of the Sun is sensitive to the influence of gravity, differential rotation, local turbulence and magnetic fields. It has been previously shown that the solar shape exhibits asphericity that evolves with the 11-year cycle.
Kosovichev, A. G., Rozelot, J. -P.
core   +3 more sources

The Solar Neutrino Problem - An Update [PDF]

, 1998
The $^8$B solar neutrino flux as measured by Super-Kamiokande is consistent with the $^{37}$Ar production rate in $^{37}$Cl at Homestake. GALLEX and SAGE, continue to observe $^{71}$Ge production rates in $^{71}$Ga that are consistent with the minimal ...
Adelberger, Akhmedov, Alexander, Bahcall, Bahcall, Bahcall, Bahcall, Barker, Basu, Basu, Cribier, Cunha, Dar, Dar, Dar, Dar, Dwarakanath, Gies, Greife, Hilgemeier, Kamionkowski, Kaniadakis, Kavanagh, Kavanagh, Krauss, Kräwinkel, Lim, Mikheyev, Motobayashi, Nunes, Okun, Osborne, Osborne, Parker, Parker, Parker, Richard, Robertson, Salpeter, Shaviv, Turck-Chieze, Vaughn, Volk, Wilson, Wolfenstein, Wolfenstein, Xu   +46 more
core   +3 more sources

Helioseismology: Observations and space missions [PDF]

, 2015
Chapter 2 of the book Extraterrestrial Seismology, 16 pages, 5 figures; doi:10.1017/CBO9781107300668 ...
P. L. Pallé, T. Appourchaux, J. Christensen-Dalsgaard, R. A. García   +3 more
openaire   +4 more sources