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2001•AIP conference proceedingsRequires access

CCD photometry of outbursts in GK Per

V. Šimon

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Abstract

Photometry of the dwarf nova type 1996 outburst of GK Per shows that the color indices are getting bluer during the late rise to the maximum brightness and a strong linear reddening is visible during the decline. The brightness fluctuations (cycles of 0.055–0.070 days and 0.028–0.045 days) were detected during the 1999 outburst. The amplitude of the fluctuations (intensity units) was increasing during the rise to the maximum light.

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What this paper is about

Photometry of the dwarf nova type 1996 outburst of GK Per shows that the color indices are getting bluer during the late rise to the maximum brightness and a strong linear reddening is visible during the decline. The brightness fluctuations (cycles of 0.055–0.070 days and 0.028–0.045 days) were detected during the 1999 outburst. The amplitude of the fluctuations (intensity units) was increasing during the rise to the maximum light.

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Available abstract

Photometry of the dwarf nova type 1996 outburst of GK Per shows that the color indices are getting bluer during the late rise to the maximum brightness and a strong linear reddening is visible during the decline. The brightness fluctuations (cycles of 0.055–0.070 days and 0.028–0.045 days) were detected during the 1999 outburst. The amplitude of the fluctuations (intensity units) was increasing during the rise to the maximum light.

Key concepts: Photometry (optics), Brightness, Physics, Astrophysics, Amplitude, Dwarf nova, Astronomy, Stars

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