A Strange Supernova
Astronomers investigating a violent starburst have experienced a unique supernova phenomenon that resembles nothing they have seen before.
Researchers discovered the supernova, known as ASASSN-1
These supernova types are important because they produce many of the common elements in the cosmos, and also because astronomers use them to measure cosmic distances.
SN 2018oh was discovered using a variety of telescopes collected at Ohio State University, where astronomers scan the sky for cosmic explosions as part of the All-Sky Automated Survey for Supernovae (ASAS). NASA's Kepler Space Telescope simultaneously observed the supernova to collect supporting data.
Studying an Explosion
Supernovae usually emit light in a gradually increasing amount, so the appearance of a sudden burst of light was extremely unexpected.
This emission could be extremely unexpected. Investigations have already been caused by the collision between the exploding white dwarf and its companion star.
However, the sequelae of SN 2018oh do not fit the predictions of what this should look like, as Carnegie astronomer Tom Holoien a member of the team that has discovered the supernova and is now studying, said it in a companion statement. "Other options, such as an unusual distribution of radioactive material in the exploded star, are a better explanation for what we have seen. Further observations from ASASSN-18bt and earlier discoveries like these will hopefully help us distinguish between different models and better understand the origins of these explosions, "added Holoien.
This emission could possibly have been caused by radioactive material However, as Holoien explained, further observations and analysis are needed before a formal conclusion can be drawn on this supernova.
These results support the recent work of the Carnegie Supernova project, which focuses on two different Some people show this type of early emission and others do not.
"Nature is always finding new ways to surprise us, and unique observations like these are great for motivating creative approaches, how we feel about this explosion "Carnegie's Anthony Piro, who analyzed the weird emission, said in the statement.
These findings are published in three articles in The Astrophysical Journal and The Astrophysical Journal Letters can be found here, here and here.)