The progenitor mass of the magnetar SGR1900+14 (2009)
Davies, Ben, Figer, Don F., Kudritzki, Rolf-Peter, Trombley, Christine, Kouveliotou, Chryssa, Wachter, Stefanie
Magnetars are young neutron stars with extreme magnetic fields (B > 10^{14}-10^{15}G). How these fields relate to the properties of their progenitor stars is not yet clearly established. However,...
A Near-Infrared Study of the Stellar Cluster: [DBS2003] 45 (2009)
Zhu, Qingfeng, Davies, Ben, Figer, Donald F., Trombley, Christine
We present a multi-wavelength photometric and spectroscopic study of a newly discovered candidate cluster [DBS2003] 45. Our H, Ks photometry confirms that [DBS2003] 45 is a cluster. An average visual...