Research report 2015 - Max Planck Institute for Radio Astronomy
Astro-archaeology with the APEX telescope: A historical star collision as novel source of interstellar molecules
Menten, Karl M.; Kamiński, Tomasz
„Millimeter und Submillimeter-Astronomie”
SummaryThe APEX telescope in Chile observed the sky position of the oldest historical nova, first discovered in 1670. Very surprisingly, emission from a multitude of different, even organic molecules was detected. Their peculiar isotopologic composition suggests that by no means ”normal” interstellar gas is observed, but rather material that was set free in a collision of two stars. This completely new source of interstellar molecular emission permits investigations of the end products of stellar collisions, a process that possibly occurs much more frequently than previously thought.