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SN 2005ip: A Luminous Type IIn Supernova Emerging from a Dense Circumstellar Medium as Revealed by X-Ray Observations
Satoru Katsuda, Keiichi Maeda, Takaya Nozawa +2
We report on X-ray spectral evolution of the nearby Type IIn supernova (SN) 2005ip, based on Chandra and Swift observations covering from ~1 to 6 years after the explosion. X-ray s…
Discovery of the Third Transient X-ray Binary in the Galactic Globular Cluster Terzan 5
Arash Bahramian, Craig O. Heinke, Gregory R. Sivakoff +7
We report and study the outburst of a new transient X-ray binary (XRB) in Terzan 5, the third detected in this globular cluster, Swift J174805.3-244637 or Terzan 5 X-3. We find cle…
The neutron star transient and millisecond pulsar in M28: from sub-luminous accretion to rotation-powered quiescence
Manuel Linares, Arash Bahramian, Craig Heinke +6
The X-ray transient IGR J18245-2452 in the globular cluster M28 contains the first neutron star (NS) seen to switch between rotation-powered and accretion-powered pulsations. We an…
Electron Cooling in a Young Radio Supernova: SN 2012aw
Naveen Yadav, Alak Ray, Sayan Chakraborti +8
We present the radio observations and modeling of an optically bright Type II-P supernova (SN), SN 2012aw which exploded in the nearby galaxy Messier 95 (M95) at a distance of $10\…
The progenitor of SN 2011ja: Clues from circumstellar interaction
Sayan Chakraborti, Alak Ray, Randall Smith +7
Massive stars, possibly red supergiants, which retain extended hydrogen envelopes until core collapse, produce Type II Plateau (IIP) supernovae. The ejecta from these explosions sh…