Results 31 to 40 of about 120,963 (192)

The Hot Limit of Solar-like Oscillations From Kepler Photometry

open access: yesFrontiers in Astronomy and Space Sciences, 2020
Kepler short-cadence photometry of 2,347 stars with effective temperatures in the range 6,000–10,000 K was used to search for the presence of solar-like oscillations.
Luis A. Balona
doaj   +1 more source

Solar cycle effect on oscillations in the period range of 2-20 days in the F region of the ionosphere

open access: yesAnnals of Geophysics, 1996
The results of Lastovicka and Mlch (1994) and Altadill and Lastovicka (1996) are extended by the use of f0F2 and h'F data from Juliusruh, Lannion and Rome.
P. Mlch, J. Lastovicka
doaj   +1 more source

Temporal variations of the rotation rate in the solar interior [PDF]

open access: yes, 2000
The temporal variations of the rotation rate in the solar interior are studied using frequency splittings from Global Oscillations Network Group (GONG) data obtained during the period 1995-99.
Basu S., H. M. Antia, Sarbani Basu
core   +3 more sources

A Statistical Study of Short-period Decayless Oscillations of Coronal Loops in an Active Region

open access: yesThe Astrophysical Journal, 2023
Coronal loop oscillations are common phenomena in the solar corona, which are often classified as decaying and decayless oscillations. Using the high-resolution observation measured by the Extreme Ultraviolet Imager (EUI) on board the Solar Orbiter, we ...
Dong Li, David M. Long
doaj   +1 more source

Solar neutrino oscillation phenomenology [PDF]

open access: yesPramana, 2004
This article summarises the status of the solar neutrino oscillation phenomenology at the end of 2002 in the light of the SNO and KamLAND results. We first present the allowed areas obtained from global solar analysis and demonstrate the preference of the solar data towards the Large-Mixing-Angle (LMA) MSW solution. A clear confirmation in favor of the
openaire   +2 more sources

Dissipative Instability of Magnetohydrodynamic Sausage Waves in a Compressional Cylindrical Plasma: Effect of Flow Shear and Viscosity Shear

open access: yesThe Astrophysical Journal, 2023
The shear flow influences the stability of magnetohydrodynamic (MHD) waves. In the presence of a dissipation mechanism, flow shear may induce an MHD wave instability below the threshold of the Kelvin–Helmholtz instability, which is called dissipative ...
D. J. Yu
doaj   +1 more source

Solar neutrino oscillations [PDF]

open access: yesNuclear Physics A, 1994
The special properties of solar neutrinos that render this flux so uniquely important in searches for neutrino masses and flavor mixing are reviewed. The effects of matter, including density fluctuations and turbulence, on solar neutrino oscillations are explained through analogies with more familiar atomic physics phenomena.
openaire   +3 more sources

Techniques for Observing Solar Oscillations [PDF]

open access: yesSymposium - International Astronomical Union, 1988
There is currently a wide range of methods for observing the properties of solar oscillations. It is generally true, however, that the means used to analyze the data are just as important to the final result as the instrumentation. I discuss first the instrumental techniques used to observe solar p-modes, with attention given both to low- and no ...
openaire   +1 more source

On the flare induced high-frequency global waves in the Sun [PDF]

open access: yes, 2010
Recently, Karoff and Kjeldsen (2008) presented evidence of strong correlation between the energy in the high-frequency part (5 ...
Chaplin   +17 more
core   +1 more source

Solar-like oscillations in a metal-poor globular cluster with the HST

open access: yes, 2009
We present analyses of variability in the red giant stars in the metal-poor globular cluster NGC6397, based on data obtained with the Hubble Space Telescope.
Bedding   +20 more
core   +1 more source

Home - About - Disclaimer - Privacy