Optical spectroscopy of V3890 Sagittarii
ATel #13062; Hiroyuki Maehara (National Astronomical Observatory of Japan), Keisuke Isogai (Kyoto University)
on 1 Sep 2019; 19:04 UT
Credential Certification: Hiroyuki Maehara (hiroyuki.maehara@nao.ac.jp)
We report optical spectroscopic observations of the recurrent nova V3890 Sagittarii (ATel #13047, #13050, #13059, #13060). We obtained low-resolution spectra of this object on 2019-08-30.509 and 2019-08-31.469 with the fiber-fed integral field spectrograph (KOOLS-IFU; Matsubayashi et al. 2019) mounted on the 3.8-m Seimei telescope at Okayama Observatory, Kyoto University. Both spectra show broad Balmer, He I, He II/N III, N II, and O I lines in emission. Fe II (multiplet 27, 37/38, 42, 48, 49, 55, 74) and Si II (6347/6371) lines are also seen in emission. The FWZI of H-alpha line is ~9000 km/s. The spectra can be seen at the following URL: http://www.kwasan.kyoto-u.ac.jp/~maehara/seimei/V3890_Sgr/V3890_Sgr-20190830.pdf.
