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Polarization Diagnostics for Cool Core Cluster Emission Lines
William B. Sparks, James E. Pringle, Robert F. Carswell +6
The nature of the interaction between low-excitation gas filaments at ~10^4 K, seen in optical line emission, and diffuse X-ray emitting coronal gas at ~10^7 K in the centers of ga…
Time Variability of Emission Lines for Four Active T Tauri Stars (I): October--December in 2010
Mei-Yin Chou, Michihiro Takami, Nadine Manset +7
We present optical spectrophotometric monitoring of four active T Tauri stars (DG Tau, RY Tau, XZ Tau, RW Aur A) at high spectral resolution ($R \ga 1 \times 10^4$), to investigate…
The 2011 Periastron Passage of the Be Binary delta Scorpii
A. S. Miroshnichenko, A. V. Pasechnik, N. Manset +19
We describe the results of the world-wide observing campaign of the highly eccentric Be binary system delta Scorpii 2011 periastron passage which involved professional and amateur…