Abstract Details
| Name: Dipankar Banerjee Affiliation: Indian Institute of Astrophysics Conference ID: ASI2016_383 Title : Kodaikanal Digitized Archive and long term study of the Sun Authors and Co-Authors : Digitization team Abstract Type : Poster Abstract Category : Sun and the Solar System Abstract : The Sun has a magnetic field which oscillates with the 11yr sunspot cycle. We have direct systematic measurements of the Sun’s magnetic field only from about the mid-1970s. There are, however, indirect proxies which give us information about this field at earlier times. I will present a summary of recent results as obtained from the Kodaikanal digitized archive at IIA. The archive hosts white light, Ca K and H-alpha images for the past century. These images have now been digitized with 4k × 4k CCD and have higher resolution (∼0.86 arcsec) than the other available historical data sets. We have calibrated all these time series and obtained new results which will provide new perspectives. |