IAU Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PSN J00291512+0251576

PSN J00291512+0251576   2014 08 07.501 *  00 29 15.12 +02 51 57.6  16.2 U    1E   7N  N128      L 0

2014 07 26.492

The object was detected earlier on July 26.492 with R~17.3 and again on July 31.465 with R~16.2. No image was obtained by KAIT earlier than July 26. A finding chart is posted at : http://astro.berkeley.edu/~zwk/findingchart/PSN_J00291512+02515763.jpg

2014 08 08.06071

This transient was observed on 2014 08 08.06071 by G. Masi, P. Catalano and P. Schmeer, remotely using the 17"-f/6.8 robotic unit part of the Virtual Telescope Project facility, at Bellatrix Astronomical Observatory in Ceccano, Italy. 120-seconds exposures, unfiltered, show the source at mag. 15.6 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 15.13; 57.5 (J2000.0, mean residuals of 0.2" on both axes). We also took several low resolution spectra of this transient on 2014 08 08.0763, remotely using the 14" robotic unit part of the Virtual Telescope Project facility in Ceccano, Italy. 5, 300-seconds images were taken using a 100 lines/mm grating, with a dispersion of 34.5 angstroms/pixel. They were co-added and the resulting image shows Si II absorption around 6210 angstroms, suggesting this is a type Ia supernova. Assuming a recessional velocity of 4241 km/s for the host galaxy (NGC 128, via NED), an expansion velocity of about 11000 km/s is derived from the minimum of the Si II 6350-angstrom line.

2014 08 08.796

his possible supernova in NGC 128 was detected with 4 x 10 min images using a luminance filter Photometry: Mag 15.43 +/- 0.20 L (V for ref; USNOA2) Astrometry: RA 00 29 15.12 Dec +02 51 57.8 These data were collected remotely by Joseph Brimacombe, Coral Towers Observatory, Cairns, Australia. Link to image and further information: https://www.flickr.com/photos/43846774@N02/14678067687/

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