Interferometric Observations of the Circumstellar Molecular Structure around the Young Stellar Object in L1287

Details Interferometric Observations of the Circumstellar Molecular Structure around the Young Stellar Object in L1287 Interferometric Observations of the Circumstellar Molecular Structure around the Young Stellar Object in L1287

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...455..175y&link_type=abstract

Astrophysical Journal v.455, p.175

Astronomy and Astrophysics

Astronomy

17

Ism: Individual Alphanumeric: L1287, Ism: Jets And Outflows, Ism: Molecules, Stars: Pre-Main-Sequence

Scientific paper

Results of high-resolution interferometric observations of CS (2-1) emission from the young stellar object IRAS 00338 + 6312 and its neighboring region in L1287 are presented. Strong and localized emission has been detected. The global CS distribution appears elongated and has a size of 0.14 pc × 0.08 pc. The CS emission shows drastically different structures at different radial velocities, including a high-velocity bipolar pattern extended over 16 km s-1 and a flattened structure perpendicular to the outflow axis at lower velocities. The high-velocity lobes are clumpy and have been apparently accelerated. It is found that the IRAS source is located in the central part of the low-velocity CS structure, while three other optical features, including the two FU Orionis candidates RNO 1B and RNO 1C, are located ear or outside the edge of the low-velocity CS component. The possible driving source of the outflow in L1287 is discussed on the basis of the available data.

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