S21B0073
S21B0073
We propose to observe phosphorus in the supernova remnants using the NB1189 narrow-band filter, which is our custom-made filter for this observation and available from S21B. Phosphorus is a key to understand the origin of life on Earth and the habitability of the exoplanets because phosphoric acid is a component of important biological molecules such as DNA, RNA, ATP, phospholipids, and so on, although phosphorus is rare in the universe. In addition, phosphorus is also important to understand the physics of stars. Phosphorus is believed to be formed in massive stars and diffused into space by the supernovae, but it is difficult to estimate the production amount of phosphorus because it is greatly affected by the other synthesized elements. In fact, there is a threefold difference in the phosphorus abundance between the theoretical predictions and the observed values. For these reasons, it is important to determine the amount of phosphorus observationally. We have developed the NB1189 filter to observe the [P II] emission line, and we will estimate the total amount of phosphorus by mapping observation of some young supernova remnants. The [P II] narrow-band filter is available only at Subaru in the northern hemisphere, so the Subaru observation in this program is highly required.
This document was translated from LATEX by HEVEA.