[vsnet-alert 23970] Re: AT 2019zhd = ZTF19adakuot outburst

[Miho Kawabata]

We report the spectroscopic observation of AT 2019zhd. We obtained a
low-resolution spectrum of this object on 2020-02-14.4 (UT) by using
the Kyoto Okayama Optical Low-dispersion Spectrograph with an integral
field unit (KOOLS-IFU; Matsubayashi et al. 2019) mounted on the 3.8-m
Seimei telescope at Okayama Observatory of Kyoto University.

The spectrum shows the strong emission lines of H-alpha and H-beta
with the blue continuum. The FWHM of the H-alpha is measured to be
around 1000km/s. The emission line peaks of H-alpha and H-beta are
blueshifted to 400-500km/s, which is consistent with the helioncetric
velocity of M31 within error. These features are possibly similar to
that of the luminous blue variable, while the spectrum cannot be
distinguished from the luminous red nova.

The obtained spectrum can be seen at the following URL:
https://wis-tns.weizmann.ac.il/object/2019zhd
https://www.dropbox.com/s/ap3x6xdgzito55r/19zhd_20200214.png?dl=0


Best regards,
Miho Kawabata

-- 
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Miho Kawabata
kawabata at kusastro.kyoto-u.ac.jp
Kyoto University
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