NGC 1333 IRAS 4 - A very young, low-luminosity binary system

Journal Article · Mon Jul 01 04:00:00 EDT 1991 · Astrophysical Journal; (United States)

DOI:https://doi.org/10.1086/186092· OSTI ID:5184811

Sandell, G; Aspin, C; Duncan, W D; Russell, A P.G.; Robson, E I ^[1]

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1. Joint Astronomy Centre, Hilo, HI (United States) Max-Planck-Institut fuer extraterrestrische Physik, Garching (West Germany) Lancashire Polytechnic, Preston (England)

IRAS 4 is a cold, low luminosity source in the active star formation region NGC 1333. The present sub-mm photometry and high spatial resolution 800- and 450-micron maps resolve this source into a binary system whose components are separated by about 31 arcsec and connected by a bridge of faint dust emission. The dust masses associated with the binary component are by far the largest seen toward any star of comparable luminosity, and are a factor of 10 higher than predicted by protostar models. It is suggested that these observations indicate a very young stellar system, possibly an actual protostar, in which most luminosity is generated by accretion. 27 refs.

• OSTI ID: 5184811
• Journal Information: Astrophysical Journal; (United States), Journal Name: Astrophysical Journal; (United States) Vol. 376; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BINARY STARS
COSMIC DUST
DUSTS
ELECTROMAGNETIC RADIATION
INFRARED RADIATION
INTERSTELLAR SPACE
LUMINOSITY
MASS
OPTICAL PROPERTIES
PHOTOMETRY
PHYSICAL PROPERTIES
PROTOSTARS
RADIATIONS
SPACE
STAR ACCRETION
STAR EVOLUTION
STARS