V548 Per activity
Posted: Sun Dec 28, 2014 10:57 am
A possible disk formation for V548 Per. Following a notice from Umberto Sollecchia (on 11 december he observed a "lack" of h-alpha absorption line respect the previous spectrum, see graph below), I took a spectrum with Lhires III 1200, finding a narrow emission component at center of broader absorption.
Since the 11 december profile has less resolution (and SNR) than the one taken on 29/9/2011 (with Lisa), I try to filter my mid-res profile decreasing resolution to Lisa level to understand if the emission component would be noticeable. It seems a real profile change. Unfortunately there aren't observations between 2011 and today to check the evolution.
Paolo
Since the 11 december profile has less resolution (and SNR) than the one taken on 29/9/2011 (with Lisa), I try to filter my mid-res profile decreasing resolution to Lisa level to understand if the emission component would be noticeable. It seems a real profile change. Unfortunately there aren't observations between 2011 and today to check the evolution.
Paolo