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- Institute of Astronomy and Astrophysics, Academia SinicaTW1.4k papers
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9 papers · 2 filters
Exploring the central sub-pc region of the γ-ray bright radio galaxy 3C 84 with the VLBA at 43 GHz in the period of 2002-2008
Kenta Suzuki, Hiroshi Nagai, Motoki Kino +13
Following the discovery of a new radio component right before the GeV γ-ray detection since 2008 August by Fermi Gamma-ray Space Telescope, we present a detailed study of the kinem…
X-ray and Gamma-ray Emissions from Different Evolutionary Stage of Rotation Powered Millisecond Pulsars
J. Takata, K. S. Cheng, R. E. Taam
The -LAT has revealed that rotation powered millisecond pulsars (MSPs) are a major contributor to the Galactic -ray source population. Such pulsars may also be important…
Panchromatic observations of the textbook GRB 110205A: constraining physical mechanisms of prompt emission and afterglow
W. Zheng, R. F. Shen, T. Sakamoto +56
We present a comprehensive analysis of a bright, long duration (T90 ~ 257 s) GRB 110205A at redshift z= 2.22. The optical prompt emission was detected by Swift/UVOT, ROTSE-IIIb and…
The Structure of the M87 Jet: A Transition from Parabolic to Conical Streamlines
Keiichi Asada, Masanori Nakamura
The structure of the M87 jet, from milli-arcsec to arcsecond scales, is extensively investigated, utilizing the images taken with the EVN, MERLIN and VLBA. We discover that the jet…
Time-Frequency Analysis of Superorbital Modulation of X-ray Binary SMC X-1 by Hilbert-Huang Transform
Chin-Ping Hu, Yi Chou, Ming-Chya Wu +2
The high-mass X-ray binary (HMXB) SMC X-1 exhibits a superorbital modulation with a dramatically varying period ranging between ~40 d and ~60 d. This research studies the time-freq…
Theoretical Spectra of the Am CVn Binary System SDSS J0926+3624 : Effects of Irradiation onto the Donor Stars
Sujan Sengupta, Ronald E. Taam
Taking into account a range of parameters determined from the evolutionary models and available observational data, the detailed non-LTE spectra for the primary star and the irradi…