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10th of November 2023
Ancora, the recently discovered ASKAP supernova remnant
by Burger-Scheidlin et al.
The supernova remnant (SNR) G288.8–6.3 was recently discovered with ASKAP as a faint radio shell at a high Galactic latitude. Burger-Scheidlin et al. have made the first detailed investigation of the gamma-ray emission from the G288.8–6.3 region, aiming to characterise the high-energy emission in the GeV regime from the newly discovered SNR (as described in yesterday's ADAP), which has been dubbed Ancora.

Historically, Argo Navis (the ship Argo) was one of the 48 constellations of Ptolemy. Argo was the ship in Greek mythology in which Jason and the Argonauts sailed to Colchis, on the shores of the Black Sea, to recover the Golden Fleece. The International Astronomical Union settled on the modern 88 constellations in 1930 and Argo Navis was broken up into three separate constellations: Puppis, the poop deck or stern; Vela, the sail; and Carina, the keel. The position of the ASKAP supernova remanant is in the constellation of Carina, towards the front of the keel, a position where the anchor of a ship would usually be found. The latin term for anchor, ancora, was therefore selected for the SNR. In the artist’s impression above, Ancora is marked with a golden circle in the context of Argo Navis.

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