Misura della Temperatura superficiale di Betelgeuse mediante il metodo spettroscopico

Details Misura della Temperatura superficiale di Betelgeuse mediante il metodo spettroscopico Misura della Temperatura superficiale di Betelgeuse mediante il metodo spettroscopico

Feb 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011asuai...1...20c&link_type=abstract

Astronomia. La rivista dell' Unione Astrofili Italiani (ISSN 0392-2308), N. 1, p. 20 - 22 (gennaio - febbraio 2011)

Astronomy and Astrophysics

Astronomy

Spectroscopy, Betelgeuse

Scientific paper

In this article we measure the color temperature of Betelgeuse star using a low resolution spectrum obtained with an 11 inch telescope and a transmission diffraction grating of 100 lines/mm. We acquire few images of the spectrum at first order and the pre-processing images, using the standard preprocessing of the astronomical images. We calibrated in wavelength by comparison with a template library spectrum of a star of spectral type M1-III. Finally, we measure the color temperature of the star using Wien law applied to the black body spectrum.

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