The variation of photospheric active regions in HD 127535

Details The variation of photospheric active regions in HD 127535 The variation of photospheric active regions in HD 127535

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...195..214m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 195, no. 1-2, April 1988, p. 214-217.

Statistics

Computation

7

H Alpha Line, Luminous Intensity, Photometry, Starspots, Stellar Atmospheres, Ubv Spectra, Computational Astrophysics, Light Curve, Light Sources, Radio Emission

Scientific paper

UBVRI photometry of the chromospherically active star HD 127535 obtained during April 1987 is presented. The analysis shows that the light variation is quasi-sinusoidal and the amplitude and the phase of the light minimum have changed drastically compared to the previous observations. These changes are attributed to the formation and evolution of magnetically active regions on the stellar surface. Furthermore, a quantitative analysis of the observations available in the literature since 1981 indicates that the sudden changes in activity on HD 127535 may be caused by short-lived spot groups rather than a single spot of longer life time. The maximum activity on HD 127535 occured during 1985.

Affiliated with

Also associated with

No associations

Rating

The variation of photospheric active regions in HD 127535 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The variation of photospheric active regions in HD 127535, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The variation of photospheric active regions in HD 127535 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-847479