Results 11 to 20 of about 510,378 (292)

Chromospheric telescope of Baikal Astrophysical Observatory. New light

Solar-Terrestrial Physics, 2016
A chromospheric telescope is an important instrument for synoptic observations and solar research. After several decades of observations with the chromospheric telescope at the Baikal Astrophysical Observatory, a need arose to improve the characteristics
Skomorovsky V.I., Kushtal G.I., Lopteva L.S., Proshin V.A., Trifonov V.D., Chuprakov S.A., Chuprakov S.A.   +6 more
doaj   +1 more source

Chromospheric K CaII telescope of Baikal Astrophysical Observatory. New light

Solar-Terrestrial Physics, 2019
In recent years, most results of CaII studies of the solar chromosphere in H and K lines have been based on observations with narrow passband filters.
Lopteva L.S., Kushtal G.I., Proshin V.A., Skomorovsky V.I., Firstov S.V., Khimich V.A., Chuprakov S.A.   +6 more
doaj   +1 more source

Scientific goals of optical instruments of the National Heliogeophysical Complex

Solar-Terrestrial Physics, 2020
Studies of the upper atmosphere have to be performed using optical photometric and spectrometric means. Modern devices allow precise photometry of the glow of the night atmosphere — airglow — with high temporal spatial and spectral resolution.
Vasilyev R.V., Artamonov M.F., Beletsky A.B., Zorkaltseva O.S., Komarova E.S., Medvedeva I.V., Mikhalev A.V., Podlesny S.V., Ratovsky K.G., Syrenova T.E., Tashchilin M.A., Tkachev I.D.   +11 more
doaj   +1 more source

Project of the Large Solar Telescope with mirror 3 m in diameter

Solar-Terrestrial Physics, 2020
One of the most important problems of modern solar physics is the observation of the small-scale structure of the solar atmosphere at various heights (including the chromosphere and corona) in different spectral lines.
Grigoryev V.M., Demidov M.L., Kolobov D.Yu., Pulyaev V.A., Skomorovsky V.I., Chuprakov S.A.   +5 more
doaj   +1 more source

OBSERVATIONS OF SPACE DEBRIS IN THE VICINITY OF ORBITS OF GLOBAL NAVIGATION SATELLITE SYSTEMS

Solar-Terrestrial Physics, 2020
The problem of the amount and characteristics of space debris in the vicinity of orbits of Global Navigation Satellite Systems (GNSS) is of significant interest from the viewpoint of safe operation of these systems.
I.V. Korobtsev, T.G. Tsukker, M.N. Mishina, V.E. Goryashin, M.V. Eselevich   +4 more
doaj   +1 more source

Registering upper atmosphere parameters in East Siberia with Fabry–Perot Interferometer KEO Scientific “Arinae”

Solar-Terrestrial Physics, 2017
We describe the Fabry—Perot interfero-meter designed to study Earth’s upper atmosphere. We propose a modification of the existing data processing method for determining the Doppler shift and Doppler widening and also for separating the observed line ...
Vasilyev R.V., Artamonov M.F., Beletsky A.B., Zherebtsov G.A., Medvedeva I.V., Mikhalev A.V., Syrenova T.E.   +6 more
doaj   +1 more source

PECULIARITIES OF 630.0 AND 557.7 NM EMISSIONS IN THE MAIN IONOSPHERIC TROUGH: MARCH 17, 2015

Solar-Terrestrial Physics, 2021
Peculiarities of 557.7 and 630.0 nm emissions observed in the second step of the magnetic storm main phase at the mid-latitude observatory Tory (52° N, 103° E) on March 17, 2015 are compared with the changes in ionospheric parameters above this station ...
N.A. Zolotukhina, N.M. Polekh, A.V. Mikhalev, A.B. Beletsky, S.V. Podlesny   +4 more
doaj   +1 more source

Spectral and photometric characteristics of mid-latitude auroras during the magnetic storm of March 17, 2015

Solar-Terrestrial Physics, 2018
We study the spatiotemporal dynamics of mid-latitude aurora from observations in the south of Eastern Siberia during St. Patrick’s severe geomagnetic storm on March 17, 2015. We perform a morphological analysis of characteristics of the observed auroras.
Mikhalev A.V., Beletsky A.B., Vasilyev R.V., Zherebtsov G.A., Podlesny S.V., Tashchilin M.A., Artamonov M.F.   +6 more
doaj   +1 more source

The Solar $Hep$ Process [PDF]

, 2004
The $Hep$ process is a weak-interaction reaction, $He3 + p \to He4 + e^+ + \nu_e$, which occurs in the sun. There is renewed interest in $Hep$ owing to current experimental efforts to extract from the observed solar neutrino spectrum information on non ...
Bahcall JN, Georgi H, Kuniharu Kubodera, Tae-Sun Park   +3 more
core   +1 more source

Solar and Heliospheric Physics with the Square Kilometre Array [PDF]

, 2015
The fields of solar radiophysics and solar system radio physics, or radio heliophysics, will benefit immensely from an instrument with the capabilities projected for SKA.
Bisi, Mario M., Browning, Philippa K., Cairns, Iver H., Gallagher, Peter T., Kontar, Eduard P., Maia, Dalmiro, Nakariakov, Valery M., Oberoi, Divya, Ratcliffe, Heather   +8 more
core   +2 more sources