3 papers
astro-ph2005
Chandra Observation of the Cluster of Galaxies MS 0839.9+2938 at z=0.194: the Central Excess Iron and SN Ia Enrichment
Yu Wang, Haiguang Xu, Zhongli Zhang +4
We present the Chandra study of the intermediately distant cluster of galaxies MS 0839.9+2938. By performing both the projected and deprojected spectral analyses, we find that the…
astro-ph2005
The Progenitor of Supernova 2004dj in a Star Cluster
Xiaofeng Wang, Yanbin Yang, Tianmeng Zhang +5
The progenitor of type II-plateau supernova (SN) 2004dj is identified with a supergiant in a compact star cluster known as "Sandage Star 96" (S96) in the nearby spiral galaxy NGC 2…
astro-ph2004
Optical Photometry of SN 1993J: Years 1995 to 2003
Tianmeng Zhang, Xiaofeng Wang, Xu Zhou +4
In this paper, the late-time optical photometry of supernova (SN) 1993J in M81 from Feburary 1995 to Janurary 2003 is presented. The observations were performed in a set of interme…