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TCP J07552804-1706513: new transient (15.8 mag) in Puppis

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SPK
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TCP J07552804-1706513: new transient (15.8 mag) in Puppis

Spectroscopy, precise astrometry, and multiband as well as time-resolved photometry are encouraged.

TCP J07552804-1706513 (UG:)
RA 07h55m28.04s, DE -17°06'51.3" (J2000.0)
2020 March 15.0763, mag. 15.8 (CCD, unfiltered)
Discoverer: Brazilian Transient Search (BraTS)
http://www.cbat.eps.harvard.edu/unconf/followups/J07552804-1706513.html

2020 03 15.0763 UT
Discovered by C. Jacques, C. Colesanti, E. Pimentel, I. Mussi, J. Ribeiro, M. Domingues, J. Amancio, L. Amaral, P. Holvorcem, T. Napoleao on behalf of the Brazilian Transient Search – BraTS – at SONEAR Observatory, Oliveira, Brazil in three frames with 10 seconds exposure using an astrograph 280mm f/2.2 + CCD unfiltered, with magnitude 15.8 under limiting mag = 17.0. Nothing is visible at this location on the previous frame (limiting mag = 17.1) taken on 2020 Mar 03.0224 UT.

2020 03 07.1975 UT
The current brightening began on 2020 March 7, according to ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) data; complete light curve ("contaminated" by the mag. 14 star USNO-A2.0 0675-07644021, which is 17" to the SSE) at https://asas-sn.osu.edu/light_curves/8ac49e9d-033c-4f7a-98c2-315eb30a3c61 – The (blue) Pan-STARRS1 source PSO J075528.000-170652.316 (gmag. 21.49) with position end figures 28.00s in RA and 52.3" in DE is 1.2" SSW of the reported position of the transient. Another designation for the progenitor candidate is GALEX J075528.1-170650 (nuv_mag. 22.17). — Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)

Clear skies,
Patrick

FRF
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Quite blue -> UG?

TCP J07552804-1706513 2020 March 17.4409UT 16.183V (0.027)

TCP J07552804-1706513 2020 March 17.4461UT 15.992I (0.037)

-> V-I = 0.189

 

Photometry based ony CCD images made with the T17 telescope of iTelescope.net at Siding Spring, Australia.

Clear skies,

Robert

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