Results 31 to 40 of about 39,482 (251)

Optical Spectropolarimetry and Asphericity of Type Ic SN 2007gr

, 2008
We present optical spectropolarimetric observations of Type Ic supernova (SN) 2007gr with Subaru telescope at 21 days after the maximum brightness (~37 days after the explosion).
Cropper M., Hoflich P., Kashikawa N., Keiichi Maeda, Ken'ichi Nomoto, Koji S. Kawabata, Leonard D. C., Masaomi Tanaka, Nomoto K., Scarrott S. M., Scarrott S. M., Takashi Hattori   +11 more
core   +1 more source

The photosphere of Pleione [PDF]

Symposium - International Astronomical Union, 1994
In this paper we report results concerning the photospheric Balmer discontinuity of Pleione. They show that after the Be → Be-shell phase transitions, the stellar photosphere keeps its characteristics unchanged.
openaire   +1 more source

Hall instability of solar flux tubes

, 2012
The magnetic network which consists of vertical flux tubes located in intergranular lanes is dominated by Hall drift in the photosphere-lower chromosphere region ($\lesssim 1 Mm$).
Pandey, B. P., Wardle, Mark
core   +1 more source

Extremely narrow spectrum of GRB110920A: further evidence for localised, subphotospheric dissipation

, 2015
Much evidence points towards that the photosphere in the relativistic outflow in GRBs plays an important role in shaping the observed MeV spectrum. However, it is unclear whether the spectrum is fully produced by the photosphere or whether a substantial ...
Ahlgren, B., Axelsson, M., Burgess, J. M., Iyyani, S., Larsson, J., Lundman, C., McGlynn, S., Pe'er, A., Ryde, F.   +8 more
core   +1 more source

Integrating virtual reality experiences with preservice and inservice science teachers

School Science and Mathematics, EarlyView.
Abstract VR environments offer opportunities for novel science learning experiences. This article discusses how we integrated virtual reality experiences with preservice and inservice science teachers. We explore the affordances of VR for enhancing science education and its potential applications in secondary level classrooms. Specifically, we describe
Alec Bodzin, Robson Araujo‐Junior, Jiayan Zhu   +2 more
wiley   +1 more source

The Relation between the Radial Temperature Profile in the Chromosphere and the Solar Spectrum at Centimeter, Millimeter, Sub-millimeter, and Infrared Wavelengths

, 2014
Solar observations from millimeter to ultraviolet wavelengths show that there is a temperature minimum between photosphere and chromosphere. Analysis based on semi-empirical models locate this point at about 500 km over the photosphere.
A. Vourlidas, E.H. Avrett, E.H. Avrett, H. Uitenbroek, J.E. Vernazza, J.E. Vernazza, J.M. Fontenla, J.M. Fontenla, J.M. Fontenla, K. Shibasaki, M. Loukitcheva, P.A. Golovinskii, R. Liseau, R.L. Kurucz, S. Patsourakos, T.R. Ayres, V. Luz De la, V. Luz De la, V. Luz De la   +18 more
core   +1 more source

DIFFERENT MODES OF TURBULENCE IN THE ACTIVE REGIONS OF THE SOLAR PHOTOSPHERE

Odessa Astronomical Publications, 2013
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.
L. V. Kozak, R. I. Kostyk, O. K. Cheremnykh   +2 more
doaj   +1 more source

Kinetic Modeling of Inertial Alfvén Waves in the Solar Corona: Implications for Heating and Particle Acceleration

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Recent observations from Parker Solar Probe and Solar Orbiter highlight the importance of Alfvén waves in solar coronal heating and particle acceleration. In this study, we investigate inertial Alfvén waves (IAWs), which operate at electron inertial scales, as a potential mechanism for plasma heating and charged particle acceleration in the ...
S. Ayaz, Gary P. Zank, Imran A. Khan, Andreas Shalchi, L.‐L. Zhao, Yeimy J. Rivera   +5 more
wiley   +1 more source

Stratigraphy of Carbonate‐Bearing Rocks at the Margin of Jezero Crater, Mars: Evidence for Shoreline Processes?

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Martian carbonate‐bearing rocks are compelling targets for exploration because they preserve detailed records of past aqueous processes, climate, and habitability. The Margin unit in Jezero crater is a distinct olivine‐ and carbonate‐bearing unit stratigraphically underlying the western fan, lining the inner margin of the western crater rim ...
Alexander J. Jones, Sanjeev Gupta, Robert Barnes, Briony H. N. Horgan, Kenneth H. Williford, Gerhard Paar, Kathryn. M. Stack, Bradley J. Garzcynski, Eleni Ravanis, Candice C. Bedford, Justin I. Simon, Athanasios Klidaras, Linda C. Kah, James F. Bell, Justin Maki, Stephen W. Lokier, Adrian Brown, Nathan R. Williams, Sanna Alwmark, Jorge I. Núñez, Fred Calef, Larry Crumpler, Alicia Vaughan, Libby R. W. Ives, Sam Gwizd, Ken Farley, Christian Tate, Nicolas Randazzo, Olivier Beyssac, Gwénaël Caravaca   +29 more
wiley   +1 more source

Flare induced penumbra formation in the sunspot of NOAA 10838

, 2010
We have observed formation of penumbrae on a pore in the active region NOAA10838 using Dunn Solar Telescope at NSO,Sunpot,USA. Simultaneous observations using different instruments (DLSP,UBF,Gband and CaK) provide us with vector magnetic field at ...
Bray, Rimmele, Sankarasubramanian, Sankarasubramanian K., Schlichenmaier, Solanki, Sreejith Padinhatteeri   +6 more
core   +1 more source