Oral Presentation

Inner Warm Disk Study Using the High-resolution Near-infrared Spectrograph

Author(s): A-Ran Lyo (KASI) et al.

Presenter: A-Ran Lyo (Korea Astronomy and Space Science Institute)

The inner disk of young stellar objects (YSO) is crucial to terrestrial planet formation and is also a site of hot Jupiters. It is also closely related with the accretion and ejection processes, which affect the formation and evolution of the central star. Therefore, it is important to identify right tracers of the inner disk and to investigate the temperature and density distributions as well as its dynamics. A high-resolution, near-infrared, spectroscopic study of inner gaseous disks is one of the best methods to derive the properties of the inner disks at <1AU. We will present some of results of the NaI and CO gaseous inner disk study toward a YSO using the IGRINS (Immersion Grating Infrared Spectrometer) developed by KASI and Univ. of Texas.