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The polarization mode of the auroral radio emission from the early-type star HD142301
P. Leto, C. Trigilio, L. M. Oskinova +12
We report the detection of the auroral radio emission from the early-type magnetic star HD142301. New VLA observations of HD142301 detected highly polarized amplified emission occu…
Signatures of an eruptive phase before the explosion of the peculiar core-collapse SN 2013gc
Andrea Reguitti, Andrea Pastorello, Giuliano Pignata +12
We present photometric and spectroscopic analysis of the peculiar core-collapse SN 2013gc, spanning seven years of observations. The light curve shows an early maximum followed by…
The lowest metallicity type II supernova from the highest mass red-supergiant progenitor
J. P. Anderson, L. Dessart, C. P. Gutiérrez +29
Red supergiants have been confirmed as the progenitor stars of the majority of hydrogen-rich type II supernovae. However, while such stars are observed with masses >25M, de…
Detection of Alpha Centauri at radio wavelengths: chromospheric emission and search for star-planet interaction
C. Trigilio, G. Umana, F. Cavallaro +6
At radio wavelengths, solar-type stars emit thermal free-free and gyroresonance, gyrosynchrotron, and impulsive coherent emission. Thermal free-free emission originates at layers w…