Jets from young stars - The case of R Monocerotis

Details Jets from young stars - The case of R Monocerotis Jets from young stars - The case of R Monocerotis

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...287l..73b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 287, Dec. 15, 1984, p. L73-L75. Research supported

Physics

Optics

43

Early Stars, Herbig-Haro Objects, Spectrograms, Stellar Spectra, Stellar Winds, Variable Stars, Carbon Monoxide, Cassegrain Optics, Collimation, Molecular Clouds, Peculiar Stars, Radio Astronomy, Shock Waves

Scientific paper

Both components of a highly collimated bipolar outflow from the young star R Mon have been discovered, using the 2.2-m telescope of the Calar Alto Observatory (CAO). The reciprocal dispersion of the Cassegrain spectrograph was 26 A per mm near H-alpha with a resolution correponding to about 100 km/s. A coude spectrogram was also obtained with a p.a. of 350 deg through R Mon. The S II line emission regions at 6716 and 6731 A are situated in narrow extensions on the opposite sides of R Mon along a line joining R Mon and HH 39. The situation indicates that outflow to HH 39 is still occurring. The velocities measured for the two flow regions are -74 (+ or 10 km/s), and 168 (+ or - 10 km/s), respectively. It is argued that the flow collimation occurs within 2000 AU from the star.

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