Lunar occupation of a solar active region at 4 cm wavelength
Lunar occupation of a solar active region at 4 cm wavelength"
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ABSTRACT THE solar eclipse of July 20, 1963, was observed from Ann Arbor, Michigan, using the 85 ft. paraboloid telescope of the University of Michigan. As observed from Michigan the solar
eclipse was partial; however, the Moon completely occulted two discrete regions on the Sun—one near the east limb and the other near the west limb. We observed the lunar occultation of the
eastern region. At the 4 cm wavelength at which this occultation was observed, the pencil beam of the radio telescope had a half-power width of 5′.95 of arc. Drift scans were taken across
the region before the occultation in order to find the position of the peak. These scans indicated an angular size of about 3′ of arc and a position which was in agreement with the position
indicated by Stanford λ 9.1 cm maps. Thus the beam almost completely covered the discrete region, and the observations consisted in tracking the region throughout the period of occultation
with the beam pointed on the peak of the region. The occultation was observed in both immersion and emersion. Access through your institution Buy or subscribe This is a preview of
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ADDITIONAL ACCESS OPTIONS: * Log in * Learn about institutional subscriptions * Read our FAQs * Contact customer support SIMILAR CONTENT BEING VIEWED BY OTHERS DETECTION OF GREEN LINE
EMISSION IN THE DAYSIDE ATMOSPHERE OF MARS FROM NOMAD-TGO OBSERVATIONS Article 15 June 2020 OBSERVATION OF THE MARS O2 VISIBLE NIGHTGLOW BY THE NOMAD SPECTROMETER ONBOARD THE TRACE GAS
ORBITER Article 09 November 2023 DISCOVERY OF \({{\BF{H}}}_{\MATHBF{3}}^{\MATHBF{+}}\) AND INFRARED AURORAE AT NEPTUNE WITH JWST Article Open access 26 March 2025 REFERENCES * Kundu, M. R.,
_CR Acad. Sci._, 246, 2740 (1958). Google Scholar * Kakinuma, T., and Swarup, G., _Ap. J._, 136, 975 (1962). Article ADS Google Scholar * Zheleznyakov, V. V., _Soviet Astro._, 6, 3
(1962). ADS Google Scholar Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Tata Institute of Fundamental Research, Bombay M. R. KUNDU & T. VELUSAMY Authors * M. R.
KUNDU View author publications You can also search for this author inPubMed Google Scholar * T. VELUSAMY View author publications You can also search for this author inPubMed Google Scholar
RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE KUNDU, M., VELUSAMY, T. Lunar Occupation of a Solar Active Region at 4 cm Wavelength. _Nature_ 217,
1132–1133 (1968). https://doi.org/10.1038/2171132a0 Download citation * Received: 11 January 1968 * Issue Date: 23 March 1968 * DOI: https://doi.org/10.1038/2171132a0 SHARE THIS ARTICLE
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