Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PNV J15212688-6838261

PNV J15212688-6838261   2019 05 11.1380*  15 21 26.88 -68 38 26.1  13.6 U             TrA       9 2

2019 05 12.16822

Discovered by L. Amaral, M. Domingues, C. Jacques, J. Ribeiro, E. Pimentel, P. Holvorcem, I. Mussi, T. Napoleao on behalf of the Brazilian Transient Search (BraTS) team- BraTS - at SONEAR Observatory, Oliveira, Brazil with 3 x 30s frames taken over 2 minutes period with a 200m f/1.8 Lens + unfiltered CCD under limiting mag = 16.0 taken on 2019 May 11.1380 . Nothing is visible at this location on the previous frame (limit mag = 16.0) taken on 2019 May. 1.056 UT. New observation on 2019 May 12.16822 shows a increasing to mag 13.2 with a 0.31-m f/2.9 Newtonian reflector + unfiltered CCD - L. Amaral. The candidate is possible an optical eruption of Nova-like object 2E 1516.6-6827 (also known as 1E 1516.6-6826). Data from ASAS https://asas-sn.osu.edu/light_curves/0b87830c-228c-472a-9e71-288b789f1309

2019 05 10.853

Outburst of the likely dwarf nova 1E 1516.6-6827 (Gaia DR2 position end figures 26.838s, 26.60" (equinox J2000.0, epoch 2015.5); parallax 1.0046 ± 0.1147 mas; Gmag. 17.78). According to ASAS-SN Sky Patrol data (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K), the current outburst began on 2019 May 10; since then the brightness was nearly constant (gmag. 13.6). Three previous outbursts had been recorded (2017 Apr. 15, 2018 Mar. 24 and Aug. 8); complete light curve at https://asas-sn.osu.edu/light_curves/8d729893-6e72-48f2-b2db-ed3f875201e3 --- Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)