Image Details
Caption: Figure 6.
Portions of the Palomar/DBSP optical spectrum of LkHα 225 South (magenta) compared to other young stellar objects with rare spectral signatures. Left panel highlights absorption in LkHα 225 South throughout the blue spectral range, with comparison made to the FU Ori stars V1057 Cyg and V2493 Cyg (PTF 10qpf; HBC 722). Right panel highlights the prominent TiO emission in the red, with comparison made to the bright states of PTF 10nvg (Covey et al. 2011) and VV CrA (Herczeg & Hillenbrand 2014); an example field M dwarf with TiO in absorption is also shown.
© 2022. The Author(s). Published by the American Astronomical Society.