Open AccessOptical spectroscopy of nova ASASSN-17hx at Bosscha Observatory
Author(s) -
Azlizan Adhyaqsa,
Ade Nur Istiqomah,
D. G. Ramadhan,
Irfan Imaduddin,
Hakim L. Malasan,
Akira Arai,
Hideyo Kawakita
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1231/1/012006
Subject(s) - nova (rocket) , physics , astrophysics , observatory , emission spectrum , light curve , optical spectra , line (geometry) , spectral line , supernova , astronomy , aeronautics , engineering , geometry , mathematics
We report optical spectroscopic observations in 2017 at Bosscha Observatory on an interesting nova, ASASSN-17hx (Nova Sct 2017). The nova ASASSN-17hx was observed on July 26 th , July 29 th , July 31 st , and August 14 th . Based on the light curve, we propose that our spectroscopic observation of ASASSN-17hx was conducted during “iron curtain” phase. The observed spectra showed a strong H α emission line and multiple emission lines of Fe II multiplets, which is typical for a Fe II type nova. However, since ASASSN-17hx was classified as a He/N type only few days after its outburst, it is suggested that the nova is actually a hybrid type nova. We will discuss the characteristic of ASASSN-17hx by analysing its expansion velocity, electron density, and evolution of the emission lines.