6 papers
Spectroscopic follow-up of Gaia alerted Young Stellar Object variables: the Large Binocular Telescope view
Teresa Giannini, Manuele Gangi, Fernando Cruz-Saenz de Miera +13
We analyzed optical/near-IR Large Binocular Telescope spectra of 16 sources alerted by Gaia between 2021 and 2024 due to significant photometric variability. Half of the spectra we…
The 2023 outburst of the Gaia alerted EXor Gaia23bab
Zsófia Nagy, Ágnes Kóspál, Péter Ábrahám +33
Episodic accretion is a fundamental process in the build-up of the stellar mass. EX Lupi-type eruptive young stars (EXors) represent one of the main types of episodic accretion. We…
A Multi-Wavelength Study of the Dynamic Environment surrounding the FUor V960 Mon
Philipp Weber, Silvio Ulloa, Sebastián Pérez +11
The evolution of young stars and planet-forming environments is intrinsically linked to their nascent surroundings. This is particularly evident for FU Orionis (FUor) objectsa c…
Evidence for an accretion bridge in the DX Cha circumbinary system from VLTI/MATISSE observations
Tímea Juhász, József Varga, Péter Ábrahám +20
DX Cha (HD 104237) is a spectroscopic binary consisting of a Herbig A7.5Ve-A8Ve primary star and a K3-type companion. Here we report on new micrometer interferometric observ…
Envelope-to-disk mass transport in the FUor-type young eruptive star V346 Normae
Á. Kóspál, P. Ábrahám, O. Fehér +2
Having disk-to-star accretion rates on the order of 10/yr, FU Orionis-type stars (FUors) are thought to be the visible examples for episodic accretion. FUors are…
Resolved ALMA continuum image of the circumbinary ring and circumstellar disks in the L1551 IRS 5 system
Fernando Cruz-Sáenz de Miera, Ágnes Kóspál, Péter Ábrahám +2
L1551 IRS 5 is a FUor-like object located in the Taurus star forming region. We present ALMA 1.3 mm continuum observations using a wide range of baselines. The observations recover…