Protostellar Accretion Disks of the NGC 1333 IRAS 4A Binary System

Details Protostellar Accretion Disks of the NGC 1333 IRAS 4A Binary System Protostellar Accretion Disks of the NGC 1333 IRAS 4A Binary System

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1158..117c&link_type=abstract

EXOPLANETS AND DISKS: THEIR FORMATION AND DIVERSITY: Proceedings of the International Conference. AIP Conference Proceedings, V

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Accretion And Accretion Disks, Distances, Redshifts, Radial Velocities, Spatial Distribution Of Galaxies, Interferometry, Circumstellar Shells, Clouds, And Expanding Envelopes, Circumstellar Masers

Scientific paper

We present the results of radio imaging observations of the NGC 1333 IRAS 4A protobinary in the ammonia (2, 2) and (3, 3) lines and in the 1.3 cm continuum. Both ammonia and continuum maps show two compact sources, accretion disks of Al and A2. Interestingly, the A2 disk is brighter in the ammonia lines but dimmer in the dust continuum than its sibling disk. This difference suggests that the disks have surprisingly dissimilar characters, one gas-rich and the other dusty. If such a condition can persist until the planet-forming phase of the disk evolution, planetary systems produced in such disks may look very different from each other.

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