Study of the outflow activity in the Lagoon Nebula (M8) using Gemini South and Magellan Baade facilities

Details Study of the outflow activity in the Lagoon Nebula (M8) using Gemini South and Magellan Baade facilities Study of the outflow activity in the Lagoon Nebula (M8) using Gemini South and Magellan Baade facilities

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009rmxac..35..288a&link_type=abstract

XII Latin American IAU Regional Meeting (Eds. G. Magris, G. Bruzual, & L. Carigi) Revista Mexicana de Astronomía y Astrofísica (

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Scientific paper

Although the specific knowledge of the star formation in Orion and a few other nearby star forming regions has been systematically growing during the last decade, the fact of having high quality observations in only a small number of regions in the Galaxy prevents a full progress in the general comprehension of massive star forming processes. M8 is a prime example of active star forming region that can provide important insights into the birth and development of protostars under different physical conditions. Recently, nine Herbig-Haro (HH) objects have been identified in M8, using HST and ESO 2p2/WFI images. In order to prove the nature of the newly discovered HH features, we have obtained Magellan/IMACS longslit spectra and Gemini South/GMOS narrow-band imaging. From the analysis of the data, we confirm that HH896 and HH897 indeed constitute a single parsec-scale bipolar jet. We also investigate the kinematics and excitation conditions of the rest of the outflows. Finally, we discover a well nourished population of small-sized HH objects and faint emission line stars. These observations provide new valuable information about the star forming activity in the inner part of the Galaxy.

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