Author | dc.contributor.author | Chavarría Garrido, Luis Agustín | |
Author | dc.contributor.author | Mardones Pérez, Diego | es_CL |
Author | dc.contributor.author | Garay Brignardello, Guido | es_CL |
Author | dc.contributor.author | Escala, A. | es_CL |
Author | dc.contributor.author | Bronfman Aguiló, Leonardo | es_CL |
Author | dc.contributor.author | Lizano, S. | es_CL |
Admission date | dc.date.accessioned | 2010-07-13T18:44:34Z | |
Available date | dc.date.available | 2010-07-13T18:44:34Z | |
Publication date | dc.date.issued | 2010-02-10 | |
Cita de ítem | dc.identifier.citation | The Astrophysical Journal, 710:583–596, 2010 February 10 | en_US |
Identifier | dc.identifier.other | doi:10.1088/0004-637X/710/1/583 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/125401 | |
Abstract | dc.description.abstract | We present sensitive near-infrared (J, H, and K) imaging observations toward four luminous massive star-forming
regions in the Norma Spiral Arm: G324.201+0.119, G328.307+0.432, G329.337+0.147, and G330.949−0.174.
We identify three clusters of young stellar objects (YSOs) based on surface density diagnostics. We also find that
sources detected only in the H and K bands and with colors corresponding to spectral types earlier than B2, are
likely YSOs. We analyze the spatial distribution of stars of different masses and find signatures in two clusters
of primordial mass segregation that cannot be explained as due to incompleteness effects. We show that dynamic
interactions of cluster members with the dense gas from the parent core can explain the observed mass segregation,
indicating that the gas plays an important role in the dynamics of young clusters. | en_US |
Patrocinador | dc.description.sponsorship | This work was supported by CONICYT-CHILE through
projects FONDAP 15010003 and BASAL PFB-06. | en_US |
Lenguage | dc.language.iso | en | en_US |
Keywords | dc.subject | Hii regions | en_US |
Título | dc.title | FOUR HIGHLY LUMINOUS MASSIVE STAR-FORMING REGIONS IN THE NORMA SPIRAL ARM. II. DEEP NEAR-INFRARED IMAGING | en_US |
Document type | dc.type | Artículo de revista | |