Age Determinations of Early-M Type Pre-Main Sequence Stars Using a High-Resolution Near-Infrared Spectroscopic Method | Zendy

Y. Takagi | Zendy; Yoichi Itoh | Zendy; Yumiko Oasa | Zendy; Koji Sugitani | Zendy

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Age Determinations of Early-M Type Pre-Main Sequence Stars Using a High-Resolution Near-Infrared Spectroscopic Method

Author(s) -

Y. Takagi,

Yoichi Itoh,

Yumiko Oasa,

Koji Sugitani

Publication year - 2011

Publication title -

publications of the astronomical society of japan

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.99

H-Index - 110

eISSN - 2053-051X

pISSN - 0004-6264

DOI - 10.1093/pasj/63.3.677

Subject(s) - stars , physics , surface gravity , astrophysics , main sequence , effective temperature , equivalent width , infrared , extinction (optical mineralogy) , astronomy , spectral line , optics , emission spectrum

We present a method for determining the age of early-M type pre-main sequence (PMS) stars based on estimations of the surface gravity. The surface gravity was measured using high-resolution near-infrared K-band spectroscopy. The age of the PMS stars can be determined from the surface gravity, which correlates with the photospheric contraction. To estimate the surface gravity while avoiding veiling...

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