Mid-Infrared Imaging of the Protostellar Binary L1448N--IRS3(A,B)

Details Mid-Infrared Imaging of the Protostellar Binary L1448N--IRS3(A,B) Mid-Infrared Imaging of the Protostellar Binary L1448N--IRS3(A,B)

2002-11-05

arxiv.org/abs/astro-ph/0211082v1

Astrophys.J. 585 (2003) 392-397

Astronomy and Astrophysics

Astrophysics

Accepted for publication in The Astrophysical Journal

Scientific paper

10.1086/345987

Mid-infrared (10-25 \micron) imaging of the protostellar binary system L1448N-IRS3(A,B) is presented. Only one source, IRS3(A), was detected at mid-infrared wavelengths -- all of the mid-infrared emission from IRS3(A,B) emanates from IRS3(A). The mid-infrared luminosity of IRS3(A) is $L_{midir} = 1.3(\frac{d}{300\rm{pc}})^2 L_\sun$, which yields a central source mass, depending on the mass infall rate, of $M_* = 0.2 M_\sun \frac{10^{-6}M_\sun yr^{-1}}{\dot M}$. The envelope mass surrounding IRS3(A) is $\sim 0.15 M_\sun$, suggesting that the central source and the envelope are of comparable mass. The locations of IRS3(A) and IRS3(B) on an $M_{env} - L_{bol}$ diagram indicate that IRS3(A) and IRS3(B) appear to be class I and class 0 protostars, respectively.

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