Disk dissipation timescale of pre-main sequence stars in Taurus

• Yuhei TAKAGI

• Yoichi ITOH

• Yumiko OASA

Abstract

We present the results of an age determination study of pre-main sequence stars in the Taurus star-forming region. The ages of 10 single stars with masses of 0.5–1.1 M⊙ were derived from the surface gravities, estimated from high-resolution optical and near-infrared spectroscopy. The equivalent width ratios of nearby absorption line pairs were employed for the surface gravity diagnostic, which directly reflects the parameters of the stellar atmosphere without any veiling correction. From a comparison of determined ages and near-infrared color excesses such as J − H, J − K, and J − L, the inner disk lifetime of the young stars with 0.5–1.1 M⊙ in Taurus is estimated to be 3–4 Myr.

Journal

• Publications of the Astronomical Society of Japan

  Publications of the Astronomical Society of Japan 66 (5), 88-, 2014

  Tokyo : Astronomical Society of Japan

Keywords

• protoplanetary disks
• stars
• formation
• pre-main sequence

Details

• CRID: 1520291855430697216
• NII Article ID: 40020264777
• NII Book ID: AA1082896X
• ISSN: 00046264
• ISSN: 2053051X
• DOI: 10.1093/pasj/psu062
• NDL BIB ID: 025913668
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025913668
• Web Site: https://academic.oup.com/pasj/article-pdf/66/5/88/54684735/pasj_66_5_88.pdf
• Text Lang: en
• NDL Source Classification:
  • ZM33(科学技術--宇宙科学)
• Data Source:
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN