Time Lag Between the Optical Continuum and Line Variabilities of NGC 4151

Autor: Andjelka Kovačević, Alla I. Shapovalova, Luka Č. Popović, Nikolai G. Bochkarev, Alexander N. Burenkov, Vahram H. Chavushyan, Milan S. Dimitrijević
Rok vydání: 2007
Předmět:
Zdroj: AIP Conference Proceedings.
ISSN: 0094-243X
Popis: Using a long term spectroscopic observation of NGC 4151 (obtained with 6 m telescope of SAO Russia, between 1996 and 2006) we used Z‐Transfomed Discrete Correlation Function (ZDCF) to find the time lag between the broad Hβ and Hα lines and the optical continuum variably.
Databáze: OpenAIRE