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Direct Confirmation of the Asymmetry of the Cas A Supernova with Light Echoes
(2011)
We report the first detection of asymmetry in a supernova (SN) photosphere based on SN light echo (LE) spectra of Cas A from the different perspectives of dust concentrations on its LE ellipsoid. New LEs are reported based ...
Ultra-high energy cosmic rays detected by the Pierre Auger observatory. First direct evidence, and its implications, that a subset originate in nearby radiogalaxies
(2008)
(abridged) The Pierre Auger Collaboration has reported 27 Ultra-High Energy Cosmic Ray Events (UHECRs) with energies above 56 EeV and well determined arrival directions as of 2007 August 31. They find that the arrival ...
A likely optical counterpart of the G292.0+1.8 pulsar wind nebula
(2008)
Context. G292.0+1.8 is a Cas A-like supernova remnant containing the young pulsar PSR J1124-5916, which powers a compact torus-like pulsar wind nebula with a jet visible in X-rays. Aims. We have performed deep optical ...
Discovery of a Giant, Highly Collimated Jet from Sanduleak's Star in the Large Magellanic Cloud
(2011)
Highly-collimated gas ejections are among the most dramatic structures in the Universe, observed to emerge from very different astrophysical systems - from active galactic nuclei down to young brown dwarf stars. Even with ...
Star-forming Dense Cloud Cores in the TeV Gamma-ray SNR RX J1713.7-3946
(2010)
RX J1713.7–3946 is one of the TeV γ-ray supernova remnants (SNRs) emitting synchrotron X-rays. The SNR is associated with molecular gas located at ~1 kpc. We made new molecular observations toward the dense cloud cores, ...
Star-forming Dense Cloud Cores in the TeV Gamma-ray SNR RX J1713.7-3946
(2010)
RX J1713.7–3946 is one of the TeV γ-ray supernova remnants (SNRs) emitting synchrotron X-rays. The SNR is associated with molecular gas located at ~1 kpc. We made new molecular observations toward the dense cloud cores, ...
High-energy particle acceleration at the radio-lobe shock of Centaurus A
(2009)
We present new results on the shock around the southwest radio lobe of Centaurus A using data from the Chandra Very Large Programme observations. The X-ray spectrum of the emission around the outer southwestern edge of the ...