Geysers in the Lagoon: new Herbig-Haro objects in M8
Rodolfo H. Barb\'a (1), Julia I. Arias (1,2) ((1) Departamento de, F\'isica, Universidad de La Serena, Chile (2) Facultad de Ciencias, Astron\'omicas y Geof\'isicas, Universidad Nacional de La Plata, Argentina)
TL;DR
This paper reports the discovery of five new Herbig-Haro objects in the Lagoon Nebula (M8), providing direct evidence of ongoing star formation and accretion activity among young stars in the region.
Contribution
It presents the first identification and detailed analysis of Herbig-Haro objects in M8, linking them to potential young stellar sources.
Findings
Discovery of five new Herbig-Haro objects in M8
Evidence of active accretion in young stars
Identification of potential driving sources among T Tauri stars
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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