Abstract Details
| Name: Manjunath Hegde Affiliation: IIA, Bengaluru Conference ID: ASI2019_216 Title : Study of the solar filaments from H-alpha spectroheliograms of the Meudon Observatory Authors and Co-Authors : Manjunath Hegde, Subhamoy Chatterjee, Dipankar Banerjee and Ravindra B Abstract Type : Poster Abstract Category : Sun and the Solar System Abstract : Solar filaments are one of the proxies for understanding the magnetic activity of the Sun. H-alpha spectroheliograms obtained from Meudon Observatory during the period (1980-2017) are processed to study the evolution of solar filaments. We generate Carrington maps for the entire time duration and detect solar filaments using semi automatic technique. From individual filaments, centroids, tilts etc, are extracted. Butterfly diagram of filaments is produced to study the distribution of filaments. The dataset is compared with filaments extracted from Kodaikanal data for cross calibration. While using different data sources,we generate a combined, calibrated data series for the long term study of the sun. The potential of such cross-calibrated data series will be highlighted. |