中文

原恒星双星L1448N--IRS3(A,B)的中红外成像

天体物理学 2009-11-07 v1

摘要

presented中红外(10-25 \micron)成像数据,仅检测到IRS3(A)一颗源在中红外波段——IRS3(A,B)的所有中红外辐射均来自IRS3(A)。IRS3(A)的中红外光度为Lmidir=1.3(d300pc)2L\sunL_{midir} = 1.3(\frac{d}{300\rm{pc}})^2 L_\sun,这给出的中心源质量取决于质量吸积速率,为M=0.2M\sun106M\sunyr1M˙M_* = 0.2 M_\sun \frac{10^{-6}M_\sun yr^{-1}}{\dot M}。IRS3(A)周围的包层质量约为0.15M\sun\sim 0.15 M_\sun,表明中心源与包层质量相当。IRS3(A)和IRS3(B)在MenvLbolM_{env} - L_{bol}图上的位置表明,IRS3(A)和IRS3(B)分别可能是类I和类0原恒星。

关键词

引用

@article{arxiv.astro-ph/0211082,
  title  = {Mid-Infrared Imaging of the Protostellar Binary L1448N--IRS3(A,B)},
  author = {David R. Ciardi and Jonathan P. Williams and Charles M. Telesco and R. Scott Fisher and Chris Packham and Robert Pina and James Radomski},
  journal= {arXiv preprint arXiv:astro-ph/0211082},
  year   = {2009}
}

备注

Accepted for publication in The Astrophysical Journal