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A&A 376, 553-560 (2001)
DOI: 10.1051/0004-6361:20010979
Multiple H
protostellar jets in the bright-rimmed
globule IC 1396-N
B. Nisini1, F. Massi2, F. Vitali1, T. Giannini1, D. Lorenzetti1, A. Di Paola1, C. Codella3, F. D'Alessio1 and R. Speziali1
1 Osservatorio Astronomico di Roma, 00040 Monteporzio Catone, Italy
2 Osservatorio Astronomico di Collurania-Teramo, Via M. Maggini, 64100 Teramo, Italy
3 CNR-Istituto di Fisica dello Spazio Interplanetario, Area di Ricerca Tor Vergata, Via Fosso del Cavaliere 100, 00133 Roma, Italy
(Received 13 March 2001 / Accepted 5 July 2001)
Abstract
We present near infrared images of the bright rimmed globule
IC 1396-N in the H2 2.12 
m narrow band filter as well as
in
broad band J, H and K filters. We detected several
chains of collimated H2 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.
Key words: stars: formation -- ISM: jets and outflows -- ISM: individual objects: IC 1396-N -- infrared: ISM: lines
Offprint request: B. Nisini, bruni@coma.mporzio.astro.it
SIMBAD Objects in preparation
© ESO 2001