A calibration of the small solar radiotelescope using a new moon

Thumbnail Image

Access rights

openAccess
publishedVersion

URL

Journal Title

Journal ISSN

Volume Title

Short survey
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)

Authors

Date

2019

Department

Metsähovi Radio Observatory

Major/Subject

Mcode

Degree programme

Language

en

Pages

Series

Physics & Astronomy International Journal, Volume 3, issue 3, pp. 110-112

Abstract

Background: Defining the solar brightness temperature at centimetre wavelengths has always been challenging. One of the main reasons has been the lack of a proper calibration source. We carried out observations at 2.7 cm (11.2 GHz) by using the New Moon for the solar brightness temperature calibration. The solar and Moon observations were made using the 1.8-meter radiotelescope operated by the Aalto University Metsähovi Radio Observatory in Finland. In this article, we present our method for defining the brightness temperature of the quiet-Sun level (QSL). Based on these observations, we found 11 500 K±1500 K to be the mean value for the QSL temperature. This value is quite similar which was reported earlier.

Description

Keywords

radiotelescope, radio observations, solar brightness temperature, Quiet-sun level (QSL), lunar brightness temperature

Other note

DOI

10.15406/paij.2019.03.00167

Citation

Kallunki, J 2019, 'A calibration of the small solar radiotelescope using a new moon', Physics & Astronomy International Journal, vol. 3, no. 3, pp. 110-112. https://doi.org/10.15406/paij.2019.03.00167

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-202001021012

Collections

[article-cris] Sähkötekniikan korkeakoulu / ELEC