possible dwarf nova outburst asassn-22jz

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Hamish Barker
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Joined: Thu Jun 20, 2019 12:11 am

possible dwarf nova outburst asassn-22jz

Post by Hamish Barker »

I took a spectrum of asassn-22jz, (also on TNS as AT 2022qwf ) which was listed as a possible CV .

It's just over 1 arcsecond from a mag 18 Gaia source included in a catalog of white dwarf,
http://vizier.u-strasbg.fr/viz-bin/Vizi ... 2130914560

I would love to extract the spectrum from the gaia archive but I can't manage to drive the python tools provided. It would be nice if a simple query - spectrum facility was included.

Elias Aydi of Ohio State university (asassn survey) has had a look and thinks it looks like a dwarf nova, but that there might be some pi cygni absorbtion on the blue side of Ha and Hb.
asassn-22jz_20220812_284_Hamish Barker.png
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