Multiseeded multimode formation of embedded clusters in the Rosette Molecular Complex: Structured star formation toward the southeastern boundary

Li, J.Z. and Smith, M.D. (2005) Multiseeded multimode formation of embedded clusters in the Rosette Molecular Complex: Structured star formation toward the southeastern boundary. Astronomical Journal, 130 (6). pp. 2757-2765. ISSN 0004-6256. (doi:https://doi.org/10.1086/497291) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1086/497291

Abstract

The Rosette Molecular Complex contains embedded clusters with diverse properties and origins. We have previously explored the shell mode of formation in the north (regions A and B) and the massive concentrations in the ridge (region C). Here we explore star formation toward the south of the complex, region D, based on data from the spatially complete Two Micron All Sky Survey. We find that stars are forming prolifically throughout this region in a highly structured mode, with both clusters and loose aggregates detected. The most prominent cluster (region D1 ) lies in the north-center. This cluster is over 20 pc to the south of the Monoceros Ridge, the interface of the emerging young OB cluster NGC 2244 with its ambient molecular clouds. In addition, there are several branches stemming from AFGL 961 in region C and extending to the southeastern boundary of the cloud. We invoke a tree model to interpret this pattern, corresponding to probable tracks of abrupt turbulent excitation and subsequent decay. Alternatively, we discuss gravoturbulent collapse scenarios based on numerical simulations. Relative stellar ages and gas flow directions will differentiate between these mechanisms.

Item Type: Article
Uncontrolled keywords: Infrared: stars, ISM: clouds, ISM: structure, Stars: formation, Stars: pre-main-sequence
Subjects: Q Science > QB Astronomy > QB460 Astrophysics
Divisions: Faculties > Sciences > School of Physical Sciences > Centre for Astrophysics and Planetary Sciences
Depositing User: Giles Tarver
Date Deposited: 11 Aug 2015 09:33 UTC
Last Modified: 12 Aug 2015 13:10 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/50110 (The current URI for this page, for reference purposes)
  • Depositors only (login required):