Optical spectroscopy of nova ASASSN-17hx at Bosscha Observatory

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 26th, July 29th, July 31st, and August 14th. Based on the light curve, we propose that our spectroscopic observation of ASASSN-17...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1231; no. 1; pp. 12006 - 12009
Main Authors Adhyaqsa, A, Istiqomah, A N, Ramadhan, D G, Imaduddin, I, Malasan, H L, Arai, A, Kawakita, H
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.05.2019
Subjects
Electron density
Emission analysis
Emission spectra
H alpha line
Iron
Light curve
Observatories
Optical Spectroscopy and Nova ASASSN-17hx
Physics
Spectroscopy
Spectrum analysis
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Summary: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 26th, July 29th, July 31st, and August 14th. 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 Hα 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.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1231/1/012006