Young Stellar Objects in the Orion B Cloud

Autor(en)

M. G. Petr-Gotzens, J. M. Alcalá, L. Spezzi, J. K. Jørgensen, Th. Stanke, M. Lombardi, J. F. Alves

Abstrakt

Wide-field near-infrared imaging surveys offer an excellent opportunityto obtain spatially complete samples of young stars in nearby star-forming regions. By studying their spatial distribution andindividual properties, the global star formation characteristics of aregion can be established. Near-infrared wide-field imaging observationsof a significantly large area in the Orion Molecular Cloud B, obtainedwith the VISTA telescope on Cerro Paranal are presented. On the basis ofphotometric selection criteria, we have identified 186 candidate youngstellar objects that are associated with the stellar clusters NGC 2068 and NGC 2071, and with the stellar group around HH24-26. Overall, Orion B shows a lot of similarities in its star formation characteristics withother Galactic star-forming regions: a star formation efficiency of a few percent, a stellar mass distribution very similar to that of the Orion Trapezium cluster, and a high observed fraction of circumstellardiscs.

Organisation(en)

Institut für Astrophysik

Externe Organisation(en)

Harvard-Smithsonian Center for Astrophysics, Università degli Studi di Milano-Bicocca

Journal

The Messenger

Band

162

Seiten

42-45

ISSN

0722-6691

Publikationsdatum

12-2015

ÖFOS 2012

103003 Astronomie, 103004 Astrophysik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/young-stellar-objects-in-the-orion-b-cloud(bd4f8506-4a1e-4235-a9dd-9427ee6f8ada).html