Results 1 to 10 of about 8,444 (189)

An investigation of radio-frequency radiation from the sun [PDF]

Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1948
It has been known for some time that the sun emits radio-frequency radiation whose intensity greatly exceeds the value expected from a black-body at 6000°K. In the present paper, experiments are described in which measurements have been made of the solar radiation at frequencies of 175 and 80 Mcyc. /sec.
M, RYLE, D D, VONBERG
openaire   +2 more sources

A New Component from the Quiet Sun from Radio to Gamma Rays: Synchrotron Radiation by Galactic Cosmic-Ray Electrons

The Astrophysical Journal, 2023
Abstract The quiet Sun, i.e., in its nonflaring state or nonflaring regions, emits thermal radiation from radio to ultraviolet. The quiet Sun also produces nonthermal radiation observed in gamma rays due to interactions of Galactic cosmic rays (GCRs) with the solar atmosphere and photons.
Elena Orlando, Vahe’ Petrosian, Andrew Strong   +2 more
openaire   +3 more sources

Solar radiation in the radio spectrum - I. Radiation from the quiet sun [PDF]

Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1948
The theory of the emission of thermal radiation from the solar envelope at radio-frequencies is worked out in detail. The Lorentz theory of absorption is used in conjunction with Kirchhoff’s law to derive the effective temperature of the various regions of the solar disk over the radio spectrum.
openaire   +2 more sources

The generation of radio-frequency radiation in the sun [PDF]

Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1948
Measurements of the radiation emitted by the sun at radio-frequencies have shown that the intensity greatly exceeds the value associated with a surface temperature of 6000° K. Under normal conditions the radiation, which appears to be randomly polarized, has an intensity which corresponds to the radiation from a black-body source ...
openaire   +1 more source

Shape of Pulses of Radio-frequency Radiation from the Sun [PDF]

Nature, 1948
DURING some 400 hours observations of solar radiation on 75 Mc./s., the variation of the second detector anode current was recorded with a portable vibration galvanometer tuned to resonance at about 45 c./s. and damped less than critically, but so that the spot became stationary after sudden deflexions in less than 0·25 sec. Records were taken on 35-mm.
openaire   +1 more source

Synchrotron Radiation in the Sun's Radio Spectrum.

The Astrophysical Journal, 1956
U. E. Kruse, L. Marshall, J. R. Platt
openaire   +1 more source

Multiwavelength Multipoint Observations of the October 28, 2021 Type III Radio Burst. [PDF]

Sol Phys
Martinez Oliveros JC, Krupar V, Ervin T, Krucker S, Pulupa M, Badman ST, Buitrago Casas JC, Mondal S, Bale SD.   +8 more
europepmc   +1 more source

Awareness and Use of the Ultraviolet Index Among U.S. Adults. [PDF]

Health Educ Behav
Nguyen TC, Holman DM, Qin J, Townsend JS, Kincaid G.   +4 more
europepmc   +1 more source

Radiation-induced remodeling of the T cell landscape in head and neck cancer. [PDF]

Cancer Immunol Immunother
Memon AA, Said I, Norenberg E, Frei A, Foeckler J, Sun F, Dwinell MB, Lochhead RB, Bruening J, Akakpo K, Massey B, Wong SJ, Hematti P, Kearl TJ, Awan MJ, Himburg HA, Zenga J.   +16 more
europepmc   +1 more source

Radiolabeled Iron-Based Nanomaterials for Cancer Diagnosis and Therapy. [PDF]

Int J Nanomedicine
Ma YX, Dai KL, Sun N, Zhang S.
europepmc   +1 more source