Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ap%26ss.102...21d&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 102, no. 1, July 1984, p. 21-27.
Astronomy and Astrophysics
Astronomy
3
Decametric Waves, Electron Energy, Hydrogen Clouds, Nebulae, Radio Sources (Astronomy), Absorption Spectra, Astronomical Maps, Continuous Spectra, Radio Telescopes, Rosette Shapes
Scientific paper
A map of the Rosette Nebula in continuum absorption made at 34.5 MHz using the decameter wave radio telescope at Gauribidanur, India, with a resolution of 26arcmin×40arcmin, is presented. These observations are combined with the 2700 MHz measurements of Graham et al. (1982) to derive the electron temperature distribution across the nebula. It is found that the temperatures in the southeastern parts of the nebula are around 5000K and increase up to 8000K towards the northwestern regions. It is suggested that the lower electron temperatures in the southeastern regions are due to the presence of more dust there compared to other regions in the nebula.
Deshpande Akshay
Sastry Ch. V.
Shevgaonkar R. K.
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