Properties of the exciting source of the outflow in iras 20231+3440 region

Details Properties of the exciting source of the outflow in iras 20231+3440 region Properties of the exciting source of the outflow in iras 20231+3440 region

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cha%26a..28..299j&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 28, Issue 3, p. 299-307.

Astronomy and Astrophysics

Astrophysics

1

Formation, Pre-Main-Sequence, Jets And Outflows, Lines And Bands

Scientific paper

Presented are results of near-infrared JHK′ and H2 imaging observations of the star forming region near IRAS 20231+3440, as well as results of K-band spectroscopic observation of the near-infrared point source IRS1 associated with the above. The JHK′ images indicate the presence of embedded young stellar objects. The narrow-band H2 image reveals a number of emission knots, some of which are aligned, suggestive of a molecular hydrogen jet. The northern part of the jet is associated with a known molecular flow, indicative of a physical connection. The orientation of the jet suggests that IRS1 may be its exciting source, the K-band spectrum of IRS1 providing further evidence. The energy spectrum of IRS1 derived from the near-infrared, MSX and IRAS data indicates that it is a medium-mass Class I young stellar object.

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