Physics
Scientific paper
Oct 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atnf.prop.1702n&link_type=abstract
ATNF proposal C1796, Semester: October, 2008
Physics
Stellar, Atca
Scientific paper
We propose an SiO maser survey toward the Galactic Super Star Cluster (SSC) Westerlund 1 (Wd1), uniquely possible only with ATCA. Through this survey, we will investigate the kinematics of the cluster and the evolution of red supergiants embedded in Wd1. Wd1 is an only example of an SSC in the Galaxy, and its proximity provides us a precious chance for spatially resolved studies of each member star of an SSC. In this research we obtain a set of accurate radial velocities of evolved stars in Wd1 by surveying the SiO maser emission. With the radial velocities obtained, we calculate the velocity dispersion and the disruption time-scale of Wd1. These kinematic parameters are a key to constrain the models of the galactic evolution. In addition, we check the detection rate dependency on mid-infrared colors to check hypotheses on the evolution of red supergiants. Since Wd1 is lying in the southern sky, using ATCA is essential. We polished up the description of the previous draft to more explicitly state our scientific goals, and we removed Trumpler 1 from the target list to focus only on Wd1, minimizing the required telescope time.
Deguchi Shuji
Kwok Sun
Nakashima Jun-ichi
Zhang Yong
No associations
LandOfFree
SiO Maser Survey of the Super Star Cluster Westerlund 1 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with SiO Maser Survey of the Super Star Cluster Westerlund 1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SiO Maser Survey of the Super Star Cluster Westerlund 1 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-774727