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The 2016-2017 peak luminosity of the pre-main sequence variable V2492 Cyg
T. Giannini, U. Munari, S. Antoniucci +5
V2492 Cyg is a young pre-main sequence star presenting repetitive brightness variations of significant amplitude (Delta R > 5 mag) whose physical origin has been ascribed to both e…
Connection between jets, winds and accretion in T Tauri stars: the X-shooter view
B. Nisini, S. Antoniucci, J. M. Alcala' +5
We have analysed the [OI]6300 A line in a sample of 131 young stars with discs in the Lupus, Chamaeleon and signa Orionis star forming regions, observed with the X-shooter spectrog…
High-resolution TNG spectra of T Tauri stars: Near-IR GIANO observations of the young variables XZ Tau and DR Tau
S. Antoniucci, B. Nisini, K. Biazzo +6
We used the TNG/GIANO instrument to obtain near-IR high-resolution spectra (R~50000) of XZ Tau and DR Tau, two actively accreting T Tauri stars classified as EXors. The analysis of…
The 2015-2016 outburst of the classical EXor V1118 Ori
T. Giannini, S. Antoniucci, D. Lorenzetti +15
After a quiescence period of about 10 years, the classical EXor source V1118 Ori has undergone an accretion outburst in 2015 September. The maximum brightness (DV > 4 mag) was reac…
Investigating the past history of EXors: the cases of V1118 Ori, V1143 Ori, and NY Ori
R. Jurdana-Šepić, U. Munari, S. Antoniucci +3
EXor objects are young variables that show episodic variations of brightness commonly associated to enhanced accretion outbursts. With the aim of investigating the long-term photom…