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

TL;DR

This study uses multi-wavelength observations to analyze star formation in the GM 2-4 nebula, revealing shock-excited outflows and suggesting a progression of star formation from NE to SW.

Contribution

It provides new insights into the outflow structures and star formation progression in GM 2-4 through combined multi-wavelength data and SED analysis.

Findings

Identification of multiple bipolar outflows

Star formation progressing from NE to SW

Correlation between SED slopes and extinction maps

Abstract

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 SED modelling. The SED spectral slope (\alpha(IRAC)) for all the protostars in the field was then compared with the visual extinction map. This comparison suggests that star formation is progressing from NE to SW across this region.