Results 11 to 20 of about 18,012,027 (287)

Solar sail orbits at the Earth-Moon libration points [PDF]

open access: yes, 2009
Solar sail technology offers new capabilities for the analysis and design of space missions. This new concept promises to be useful in overcoming the challenges of moving throughout the solar system.
Simo, Jules, McInnes, Colin R.
core   +4 more sources

Current sheets in the solar corona : formation, fragmentation and heating [PDF]

open access: yes, 2011
In this thesis we investigate current sheets in the solar corona. The well known 1D model for the tearing mode instability is presented, before progressing to 2D where we introduce a non-uniform resistivity.
Bowness, Ruth
core   +2 more sources

Unveiling the Structure and Dynamics of Red Giants With Asteroseismology

open access: yesFrontiers in Astronomy and Space Sciences, 2020
The Kepler mission observed many thousands of red giants. The long time series, some as long as the mission itself, have allowed us to study red giants with unprecedented detail. Given that red giants are intrinsically luminous, and hence can be observed
Sarbani Basu   +2 more
doaj   +1 more source

ANALYSIS OF SPHERICAL ASTRONOMY ALGORITHMS FOR PREDICTING THE SOLAR ECLIPSE BY W.M. SMART

open access: yesAl-Hilal, 2022
A solar eclipse is an unusual natural occurrence. Muslims used the phenomenon of a solar eclipse as the season for prayer, which was only carried out during a solar eclipse from early in the phenomenon until the end.
Fiki Nuafi Qurrota Aini   +1 more
doaj   +1 more source

Spatio-Temporal Analysis of Dust Storm Activity in Chryse Planitia Using MGS-MOC Observations from Mars Years 24–28

open access: yesUniverse, 2021
Dust storms, observed in all seasons, are among the most momentous of Mars’ atmospheric activities. The Entry–Descent–Landing (EDL) activity of a Martian landing mission is influenced by local atmospheric conditions, especially the probability of dust ...
Bo Li   +6 more
doaj   +1 more source

Solar System Astronomy [PDF]

open access: yesNature, 1967
Moon and Planets Edited by A. Dollfus. (A Session of the Seventh International Space Science Symposium held in Vienna on May 10–18, 1966.) (Sponsored by COSPAR and IAU.) Pp. 321 + 26 photographs. (Amsterdam: North-Holland Publishing Company, 1967.) 90s.
openaire   +1 more source

Electron-scale nested quadrupole Hall field in Cluster observations of magnetic reconnection [PDF]

open access: yesAnnales Geophysicae, 2015
This paper presents the first evidence of a new and unique feature of spontaneous reconnection at multiple sites in electron current sheet, viz. a "nested quadrupole" structure of the Hall field at electron scales, in Cluster observations.
N. Jain, A. S. Sharma
doaj   +1 more source

Radio astronomy and the solar system [PDF]

open access: yesSymposium - International Astronomical Union, 1959
Radio astronomy has been expanding into outer space so fast in recent years that it is pleasant to find our own solar system at last receiving the attention it deserves. In this session we are concerned with everything within the system except the sun and our own planet. I start with a question, to which I shall return later: Where does the sun end? In
openaire   +1 more source

Over seven decades of solar microwave data obtained with Toyokawa and Nobeyama Radio Polarimeters

open access: yesGeoscience Data Journal, 2023
Monitoring observations of solar microwave fluxes and their polarization began in Japan during the 1950s at Toyokawa and Mitaka. At present (April 2022), monitoring observations continues with the Nobeyama Radio Polarimeters (NoRP) at the Nobeyama campus
Masumi Shimojo, Kazumasa Iwai
doaj   +1 more source

Solar System Astronomy Ancillary Resources

open access: yes, 2022
These PowerPoint slides and project resources for use in Solar System Astronomy courses were developed under a Round 18 Transformation ...
Beznosko, Dmitriy   +2 more
core   +1 more source

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