Multiple H2 protostellar jets in the bright-rimmed globule IC 1396-N

Details Multiple H2 protostellar jets in the bright-rimmed globule IC 1396-N Multiple H2 protostellar jets in the bright-rimmed globule IC 1396-N

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...376..553n&link_type=abstract

Astronomy and Astrophysics, v.376, p.553-560 (2001)

Astronomy and Astrophysics

Astrophysics

25

Stars: Formation, Ism: Jets And Outflows, Ism: Individual Objects: Ic 1396-N, Infrared: Ism: Lines

Scientific paper

We present near infrared images of the bright rimmed globule IC 1396-N in the H_2 2.12 mu m narrow band filter as well as in broad band J, H, and K, filters. We detected several chains of collimated H_2 knots inside the globule, having different luminosities but similar orientations in the sky. Most of the knots are associated with peaks of high velocity CO emission, indicating that they trace shocked regions along collimated stellar jets. From the H2 knots morphology and orientation, we identify at least three different jets: one of them is driven by the young protostar associated with IRAS 21391+5802, which represents the most luminous object in the region, while we were able to identify only one of the two other driving sources by means of near infrared photometry. Our photometry reveals the existence of a cluster of young embedded sources located in a south-north line which follows the distribution of the high density gas and testifies for a highly efficient star formation activity through all the globule. Based on observations collected with the AZT-24 Telescope at Campo Imperatore, a joint project between the Astronomical Observatories of Roma (OAR, Italy), Teramo (OACT, Italy) and Pulkovo (OAP, Russia).

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