The observation and analysis of stellar photospheres/ by 212830 Gray, David F.

Subjects: “…Stellar photospheres…”

The observation and analysis of stellar photospheres / by Gray, David F., 1938-

Subjects: “…Stellar photospheres…”

Photospheric magnetic vortex structures by S. Shelyag, V. Fedun, F. P. Keenan, R. Erdélyi, M. Mathioudakis

“…Using direct numerical magneto-hydrodynamic (MHD) simulations, we demonstrate the evidence of two physically different types of vortex motions in the solar photosphere. Baroclinic motions of plasma in non-magnetic granules are the primary source of vorticity in granular regions of the solar photosphere, however, there is a significantly more efficient mechanism of vorticity production in strongly magnetised intergranular lanes. …”
Get full text

Solar and stellar photospheric abundances by Carlos Allende Prieto

“…Abstract The determination of photospheric abundances in late-type stars from spectroscopic observations is a well-established field, built on solid theoretical foundations. …”
Get full text

On the Origin of the Photospheric Magnetic Field by Peter W. Schuck, Mark G. Linton, Kalman J. Knizhnik, James E. Leake

“…This article presents results that challenge the paradigms that (1) the convection zone is the source of the radial magnetic field in the photosphere and (2) that coronal currents are neutralized from the perspective of the photosphere. …”
Get full text

PMI: The Photospheric Magnetic Field Imager by Staub Jan, Fernandez-Rico German, Gandorfer Achim, Gizon Laurent, Hirzberger Johann, Kraft Stefan, Lagg Andreas, Schou Jesper, Solanki Sami K., del Toro Iniesta Jose Carlos, Wiegelmann Thomas, Woch Joachim

“…We describe the design and the capabilities of the Photospheric Magnetic field Imager (PMI), a compact and lightweight vector magnetograph, which is being developed for ESA’s Lagrange mission to the Lagrange L5 point. …”
Get full text

Prominence oscillations and the influence of the distant photosphere by Schutgens, N, Kuperus, M, van den Oord, G

Quantifying Poynting Flux in the Quiet Sun Photosphere by Dennis Tilipman, Maria Kazachenko, Benoit Tremblay, Ivan Milić, Valentin Martínez Pillet, Matthias Rempel

Subjects: Get full text

Dynamic bifurcation for the granulation convection in the solar photosphere by Junyan Li

Subjects: Get full text

Computation and analysis of flow patterns in the solar photosphere. by Hendl, Richard Godfrey

Get full text

Turbulence in a Coronal Loop Excited by Photospheric Motions by Giuseppina Nigro, Francesco Malara, Antonio Vecchio, Leonardo Primavera, Francesca Di Mare, Vincenzo Carbone, Pierluigi Veltri

“…Photospheric motions are believed to be the source of coronal heating and of velocity fluctuations detected in the solar corona. …”
Get full text

The role of photospheric converging motion in initiation of solar eruptions by Xinkai Bian, Chaowei Jiang, Xueshang Feng

“…It is well-known that major solar eruptions are often produced by active regions with continual photospheric shearing and converging motions. Here, through high-accuracy magnetohydrodynamics simulation, we show how solar eruption is initiated in a single bipolar configuration as driven by first shearing and then converging motions at the bottom surface. …”
Get full text

DIFFERENT MODES OF TURBULENCE IN THE ACTIVE REGIONS OF THE SOLAR PHOTOSPHERE by L. V. Kozak, R. I. Kostyk, O. K. Cheremnykh

“…In work the range of different methods for the analysis of characteristics of turbulent processes in the active regions of the solar photosphere has been used. The changes of fluctuations distribution function and its moments were analyzed, spectral analysis was carried out. …”
Get full text

Deconstructing Photospheric Spectral Lines in Solar and Stellar Flares by Aaron J. Monson, Mihalis Mathioudakis, Adam F. Kowalski

Subjects: Get full text

The photospheric origin of the Yonetoku relation in gamma-ray bursts by Hirotaka Ito, Jin Matsumoto, Shigehiro Nagataki, Donald C. Warren, Maxim V. Barkov, Daisuke Yonetoku

“…Here, Ito et al. show the reproduction of this relation in 3D hydrodynamical simulations followed by radiative transfer calculations, which suggest the photospheric emission is the dominant component in the prompt phase of GRBs.…”
Get full text

Novel Approach to Forecasting Photospheric Emergence of Active Regions by S. S. A. Silva, M. Lennard, G. Verth, I. Ballai, E. L. Rempel, J. Warnecke, H. Iijima, H. Hotta, S.-H. Park, A. C. Donea, K. Kusano, V. Fedun

“…We analyze the lower photospheric flow organization prior, during and following the rise of an active region, uncovering the repelling and attracting photospheric structures that act as sources and sinks for magnetic element transport. …”
Get full text

Prominence oscillations and stability - Communicating the distant photospheric boundary by Schutgens, N

“…The photosphere provides an important boundary condition for prominence support. …”

Testing the Steady-State Fluctuation Relation in the Solar Photospheric Convection by Giorgio Viavattene, Giuseppe Consolini, Luca Giovannelli, Francesco Berrilli, Dario Del Moro, Fabio Giannattasio, Valentina Penza, Daniele Calchetti

Subjects: Get full text

Changes in Photospheric Lorentz Force in Eruptive and Confined Solar Flares by Samriddhi Sankar Maity, Ranadeep Sarkar, Piyali Chatterjee, Nandita Srivastava

“…Solar flares are known to leave imprints on the magnetic field in the photosphere, often manifested as an abrupt and permanent change in the downward-directed Lorentz force in localized areas inside the active region. …”
Get full text

The Sun's Global Photospheric and Coronal Magnetic Fields: Observations and Models by Duncan Mackay, Anthony Yeates

Subjects: Get full text