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Interpreting the simultaneous variability of near-IR continuum and line emission in young stellar objects |
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| Authors: | D. Lorenzetti S. Antoniucci T. Giannini A. Di Paola A. A. Arkharov V. M. Larionov |
| Affiliation: | 1. Osservatorio Astronomico di Roma, INAF, Via Frascati, 33-00040, Monte Porzio Catone, Italy 2. Central Astronomical Observatory of Pulkovo, Pulkovskoe shosse 65, 196140, St. Petersburg, Russia 3. Astronomical Institute, St. Petersburg University, St. Petersburg, Russia |
| Abstract: | We present new near-infrared (IR) spectra (0.80–1.35 μm) of the pre-Main Sequence source PV Cep taken during a monitoring program of eruptive variables we are conducting since some years. Simultaneous photometric and spectroscopic observations are systematically carried out during outburst and quiescence periods. By correlating extinction-free parameters, such as HI recombination lines and underlying continuum, it is possible to infer on the mechanism(s) responsible for their origin. Accretion and mass loss processes have a dominant role in determining the PV Cep irregular variability of both continuum and line emission. The potentialities of the observational modality are also discussed. |
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