Mid-Infrared Imaging of the Protostellar Binary L1448N IRS 3(A,B)
Abstract
Mid-infrared (10-25 μm) imaging of the protostellar binary system L1448N IRS 3(A,B) is presented. Only one source, IRS 3(A), was detected at mid-infrared wavelengths-all of the mid-infrared emission from IRS 3(A,B) emanates from IRS 3(A). The mid-infrared luminosity of IRS 3(A) is Lmidir=1.3[d/(300pc)]2Lsolar, which yields a central source mass, depending on the mass infall rate, of M*=0.2Msolar(10- 6Msolaryr-1/M). The envelope mass surrounding IRS 3(A) is ~0.15 Msolar, suggesting that the central source and the envelope are of comparable mass. The locations of IRS 3(A) and IRS 3(B) on an Menv-Lbol diagram indicate that IRS 3(A) and IRS 3(B) appear to be Class I and Class 0 protostars, respectively.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- March 2003
- DOI:
- 10.1086/345987
- arXiv:
- arXiv:astro-ph/0211082
- Bibcode:
- 2003ApJ...585..392C
- Keywords:
-
- Infrared: ISM;
- Infrared: Stars;
- ISM: Individual: Alphanumeric: L1448;
- ISM: Individual: Alphanumeric: L1448N IRS 3;
- Stars: Formation;
- Stars: Pre-Main-Sequence;
- Astrophysics
- E-Print:
- Accepted for publication in The Astrophysical Journal