Results 131 to 140 of about 429,936 (298)

Statistical Investigation of Wave Propagation in the Quiet-Sun Using IRIS Spectroscopic Observations

open access: yesThe Astrophysical Journal
In this analysis, we use spectroscopic observations of the quiet Sun made by the IRIS instrument and investigate wave propagation. We analyze various spectral lines formed in different atmospheric layers, such as the photosphere, chromosphere, and ...
Kartika Sangal   +4 more
doaj   +1 more source

Differential emission measure of solar nanoflares measured with the SITES algorithm

open access: yesSolar-Terrestrial Physics
The paper presents the results of a study of capabilities of the SITES algorithm for reconstructing the differential emission measure (DEM) of a source from its radiation in several parts of the electromagnetic spectrum in the context of observing solar ...
Belov S. A.   +3 more
doaj   +1 more source

Evolutionary Tracks Of Quiet-Sun Magnetic Features

open access: yes, 2015
This thesis presents a study of quiet-Sun magnetic features in the solar photosphere. Magnetic fields in the quiet Sun organize on small spatial scales, evolve very rapidly, and produce weak polarization signals. With these properties their observation requires high spatial and temporal resolution together with sensitive and accurate polarimetric ...
openaire   +3 more sources

Assessing physiological, behavioral and movement responses to Suprelorin implant delivery methods in free‐ranging eastern grey kangaroos Macropus giganteus

open access: yesWildlife Biology, EarlyView.
Overabundant populations of eastern grey kangaroos Macropus giganteus in peri‐urban areas pose ecological and social challenges. Current management strategies are often hindered by animal welfare and logistical concerns. This study aimed to assess stress responses of kangaroos to two contraceptive delivery methods.
Fabiola R. O. Silva   +4 more
wiley   +1 more source

On the Existence of Long-period Decayless Oscillations in Short Active Region Loops

open access: yesThe Astrophysical Journal
Decayless kink oscillations, characterized by their lack of decay in amplitude, have been detected in coronal loops of varying scales in active regions, the quiet Sun, and coronal holes. Short-period (
Arpit Kumar Shrivastav   +7 more
doaj   +1 more source

Estimating red deer Cervus elaphus population density using drones in a steep and rugged terrain

open access: yesWildlife Biology, EarlyView.
Precise and accurate information about population density, crucial for wildlife management, is difficult to obtain for elusive species living in dense forests or steep and inaccessible terrain. Using unmanned aerial vehicles (UAVs), we developed a method for obtaining absolute population estimates of ungulates living in steep, rugged, and partly ...
Julie Bommerlund   +3 more
wiley   +1 more source

Application of Deep Learning to the Classification of Stokes Profiles: From the Quiet Sun to Sunspots

open access: yesThe Astrophysical Journal
The morphology of circular polarization profiles from solar spectropolarimetric observations encodes information about the magnetic field strength, inclination, and line-of-sight velocity gradients.
Ryan J. Campbell   +4 more
doaj   +1 more source

Diurnal variation of galactic cosmic ray intensity on quiet days [PDF]

open access: yes
A detailed study of the diurnal variation on long term basis was performed on geomagnetically quiet days using the experimental data of the cosmic ray intensity from the worldwide neutron monitoring stations.
Datt, S. C., Kumar, S.
core   +1 more source

Public Inquiries and UK Press Regulation: A Case of ‘Fading into Forgetfulness’?

open access: yesThe Political Quarterly, EarlyView.
Abstract Why were the proposals for reform of UK press regulation made by Lord Leveson in 2012 not implemented in full, despite popular and parliamentary support for the report's recommendations, and despite the creation of the legal framework for the reformed system of regulation?
John Street   +2 more
wiley   +1 more source

Sun Transit Outage Considering Solar Activity and It's Application to Koreasat [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1999
The purpose of this paper is to predict Sun Transit Outage phenomenon(Sunout). Sunout had been studied mainly for the case of Geostationary satellite and under the assumption of 'Quiet Sun'.
Kyoung-Min Roh   +2 more
doaj  

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