A method of differential field photometry by video-photographic image subtraction |
| |
| Authors: | R R Fisher R C Hill II |
| |
| Institution: | (1) University of Hawaii, Institute for Astronomy, Hawaii, U.S.A. |
| |
| Abstract: | A method is presented for subtracting two sequential images by a video technique. This procedure is applied to detect both rotational line-of-sight effects, and velocity fields around an active region (McMath plage No. 10181). The standard deviation of a velocity measurement was found to be ± 0.4 km/sec. This method appears to offer some advantages compared with the photographic subtraction process. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
