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Title:
NGC 1333 IRAS 4 - A very young, low-luminosity binary system
Authors:
Sandell, Goran; Aspin, Colin; Duncan, William D.; Russell, Adrian P. G.; Robson, E. I.
Affiliation:
AA(Joint Astronomy Centre, Hilo, HI), AB(Joint Astronomy Centre, Hilo, HI), AC(Joint Astronomy Centre, Hilo, HI), AD(Max-Planck-Institut fuer extraterrestrische Physik, Garching, Federal Republic of Germany), AE(Lancashire Polytechnic, Preston, England)
Publication:
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 376, July 20, 1991, p. L17-L20. (ApJL Homepage)
Publication Date:
07/1991
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
INFRARED SOURCES (ASTRONOMY), INTERSTELLAR MATTER, PRE-MAIN SEQUENCE STARS, STAR FORMATION, STELLAR MASS ACCRETION, ASTRONOMICAL PHOTOMETRY, COSMIC DUST, INFRARED ASTRONOMY SATELLITE, STELLAR LUMINOSITY, SUBMILLIMETER WAVES
DOI:
10.1086/186092
Bibliographic Code:
1991ApJ...376L..17S

Abstract

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.

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