ASASSN-16ig: spectroscopic follow-up observations
ATel #9359; Akira Arai (Kyoto Sangyo University), Paulo Cacella (DogsHeaven Observatory, Brasilia, Brazil)
on 10 Aug 2016; 06:08 UT
Distributed as an Instant Email Notice Novae
Credential Certification: Akira Arai (arai6a@cc.kyoto-su.ac.jp)
ASASSN-16ig was discovered on UT 2015-10-01.29 at V~13.3 mag by All Sky Automated Survey for SuperNovae (ASAS-SN), and it proceed to rise to V~12.9 on 2016-08-08.17. The result of follow-up photometric observations suggests the object would be a heavy reddened galactic nova (http://www.astronomerstelegram.org/?read=9343).
We performed optical spectroscopic observations of ASASSN-16ig by using our 25-cm
telescope with a low-resolution spectrograph SBIG DSS-7 (R~400) at the DogsHeaven Observatory, Brazil on UT 2016-08-09.0932 (date of mid-exposure). The total exposure time was 3600 sec.
Our spectrum shows a significant H-alpha emission line (fwhm ~ 2000 km/s)
accompanied with a P-Cygni profile. The velocity at the absorption minimum
of the P-Cygni profile was approximately 2000 km/s. We also found emission lines at
O I 7774 and O I 8446. The former was accompanied by a P-Cygni profile.
There were no other significant features in our low SNR spectrum.
These results indicate that ASASSN-16ig is a Fe-II type classical nova.
