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Irregular changes in Hα emission line of V423 Aur observed by LAMOST Medium-Resolution Spectrographs
[article]
2019
arXiv
pre-print
We obtained 7 spectra of the Be star V423 Aur on Dec. 5th, 2017 using the LAMOST Medium-Resolution Spectrograph with exposures from 600 to 1200 seconds. These spectra show the irregular Hα emission line profile variations (LPVs). In the seven spectra, from the 4th to 7th, the left part of Hα profile even show excess. However, no variation can be seen from the follow-up observation of photometry by 1.26-m telescope and High-Resolution spectra by 2.16-m telescope. According to the High-Resolution
arXiv:1910.07818v1
fatcat:azifvc2eqzhg5l673wqt6e2ig4