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arXiv · 0706.2378

Geysers in the Lagoon: new Herbig-Haro objects in M8

Rodolfo H. Barbá·Julia I. Arias
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Abstract

Aims: We search for direct evidence of ongoing star formation by accretion in the Lagoon Nebula (M8), using optical wide-field narrow-band imaging obtained at La Silla Observatory. Methods: We examine [SII] and Halpha images for line-emission features that could be interpreted as signatures of outflow activity of the exciting sources. Results: We discover five new Herbig-Haro objects, study in detail their morphology and attempt to identify their potential driving sources among the population of T Tauri stars and embedded sources in the surroundings. Conclusions: The results reported here conclusively demonstrate the existence of very young stars going through the accreting phase in the M8 region.

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Rodolfo H. Barbá, Julia I. Arias. 2007-06-15. Geysers in the Lagoon: new Herbig-Haro objects in M8. https://doi.org/10.1051/0004-6361%3A20066081

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