[vsnet-alert 24183] Re: ZTF20aaurhdm: dwarf nova outburst (13.9 mag) in Hercules

Kojiguchi Naoto kojiguchi at kusastro.kyoto-u.ac.jp
Fri Apr 17 04:15:23 JST 2020

Re: ZTF20aaurhdm: dwarf nova outburst (13.9 mag) in Hercules

     According to the spectrum reported to TNS by Padova-Asiago group,
the spectrum shows a blue continuum with  Balmer and He I absorption lines.
Both absorption lines have similar strength to each other.
Thus, this object is a good candidate for an EI Psc-type object.

On 2020/04/17 2:25, Patrick Schmeer pasc1312-aavso at yahoo.de via vsnet-alert wrote:
> ZTF20aaurhdm  (UG)
> https://www.aavso.org/vsx/index.php?view=detail.top&oid=1543864
> Complete ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
> and Kochanek et al. 2017PASP..129j4502K) light curve and data:
> https://asas-sn.osu.edu/light_curves/e57c75d2-eea2-4903-a3aa-cc0febf15f2d
> ZTF light curve:
> https://lasair.roe.ac.uk/object/ZTF20aaurhdm/
> In outburst since at least April 8 (amplitude 8 magnitudes).
> Time-resolved photometry is required.
> Clear skies,
> Patrick

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