Journal Article

GM 2-4: a signpost for low- and intermediate-mass star formation*

Tigran Khanzadyan, Tigran A. Movsessian, Chris J. Davis, Tigran Yu. Magakian, Roland Gredel and Elena H. Nikogossian

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 418, issue 3, pages 1994-2003
Published in print December 2011 | ISSN: 0035-8711
Published online December 2011 | e-ISSN: 1365-2966 | DOI:
GM 2-4: a signpost for low- and intermediate-mass star formation*

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We present a multi-wavelength study of the region towards the GM 2-4 nebula and the nearby source IRAS 05373+2340. Our near-infrared H2 1–0 S(1) line observations reveal various shock-excited features which are part of several bipolar outflows. We identify candidates for the driving sources of the outflows from a comparison of the multi-waveband archival data sets and spectral energy distribution (SED) modelling. The SED spectral slope () for all the protostars in the field was then compared with the visual extinction map. This comparison suggests that star formation progresses from north-east to south-west across this region.

Keywords: circumstellar matter; ISM: individual objects: GM 2-4; ISM: jets and outflows; infrared: stars

Journal Article.  6957 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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