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The H Halo Distribution of 10 Nearby Planetary Nebulae based on the SHASSA Imaging Data
Chih Hao Hsia, Jin Zeng Li, Wing-Huen Ip
Here we present initial results of our search for extensive halos around the planetary nebulae (PNe) in our Galaxy based on imaging data from the Southern H-Alpha Sky Survey Atlas…
Testing the External Shock Model of Gamma-Ray Bursts using the Late-Time Simultaneous Optical and X-ray Afterglows
Yuji Urata, Ryo Yamazaki, Takanori Sakamoto +21
We study the ``normal'' decay phase of the X-ray afterglows of gamma-ray bursts (GRBs), which follows the shallow decay phase, using the events simultaneously observed in the R-ban…
A multi band study of the optically dark GRB 051028
Yuji Urata, Kui-Yun Huang, Ping-Hung Kuo +16
Observations were made of the optical afterglow of GRB 051028 with the Lulin observatory's 1.0 m telescope and the WIDGET robotic telescope system. R band photometric data points w…