TCP J18224935-2408280: new transient in Sagittarius

[Jaroslav Merc]

A new symbiotic candidate appeared in a dense region in Sagittarius. Mag between 13-14. The spectrum could confirm or reject the symbiotic nature.

Jaroslav

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Information from Patrick Schmeer:

TCP J18224935-2408280 (ZAND:)
(submitted to VSX)

For discovery details and follow-up reports see
http://www.cbat.eps.harvard.edu/unconf/ ... 08280.html

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/sky-patrol/coor ... da99c20247

Spectroscopy, multiband photometry, and precise astrometry are required.

[Olivier GARDE]

Here's a spectrum taken with our 2spot setup in Chile

[Robin Leadbeater]

Result ! Congratulations

https://www.astronomerstelegram.org/?read=14691

There are a couple more announced on vsnet

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-----Original Message-----
From: vsnet-alert On Behalf Of Kenta TAGUCHI
Sent: 10 June 2021 10:06
To: vsnet-alert@ooruri.kusastro.kyoto-u.ac.jp
Subject: [vsnet-alert 25951] Spectra of TCP J18224935-2408280

TCP J18224935-2408280

According to ATels #14691, 14692, this transient confirmed as an outburst of a symbiotic star:
https://www.astronomerstelegram.org/?read=14691
https://www.astronomerstelegram.org/?read=14692

Mitsugu Fujii-san (Fujii Kurosaki Observatory) also toke a spectrum on
2021-06-07.684 UT.
His spectrum is available from the following URL.
http://otobs.org/FBO/etc/tcp_j18224935- ... 408280.htm

We also take a spectrum using the 3.8-m telescope Seimei on
2021-06-07.78 UT.
http://www.kusastro.kyoto-u.ac.jp/~kent ... pj1822.pdf
http://www.kusastro.kyoto-u.ac.jp/~kent ... fc.ms.fits
The line that ATel #14691, 14692 identified as [O III] might be He I.

Best,
Kenta