PROBING CIRCUMSTELLAR MOLECULAR GAS IN THE STAR-FORMING REGION $BD +40^{\circ} 4124$

Loading...
Thumbnail Image

Date

2004

Journal Title

Journal ISSN

Volume Title

Publisher

Ohio State University

Research Projects

Organizational Units

Journal Issue

Abstract

As a well known cluster system that has simultaneous low and high-mass star formation, the $BD +40^{\circ} 4124$ region can provide an interesting laboratory for star formation studies. The cluster associated with $BD +40^{\circ} 4124$, a Herbig Be star at a distance of 1 kpc, includes two other optically visible young stars, V 1686 Cygni and V1318 Cygni, and several embedded IR sources. We present the BIMA interferometric images of CS $J = 2 - 1, {^{13}}CO J = 1 - 0$, and $C^{18}O J = 1 - 0$ to probe the molecular gas distribution and morphology and derive the gas column density and molecular mass. By comparsion with near infrared observations, we identify more embedded sources showing ongoing star-forming activities and study the formation mechanism and interaction between the high mass star and low mass companions. Finally, the impact to general star formation will be discussed.

Description

Author Institution: Astronomy Department, University of Illinois at Urbana-Champaign

Keywords

Citation