Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J12015272-1852183

PSN J12015272-1852183   2013 06 22.12  *  12 01 52.72 -18 52 18.3  15.8 U            NGC4038    9 9

2013 06 24.330

PSN J12015272-1852183 easily seen in many 2 min exposures at around mag 15.5 (poor seeing) Images taken at Parkdale Observatory New Zealand Image here http://www.bosssupernova.com/confirmingimages.htm

2013 06 23.88

TNG spectroscopy shows that this is a Type Ic supernova, about six days before maximum light

2013 06 24.331

This possible supernova in NGC 4038 was detected with 22 x 2 min images using an infrared filter Photometry: Mag 16.60 +/- 0.17 IR > 700 nm (R for ref) Astrometry: RA 12 01 52.72 Dec -18 52 18.0 These data were collected by Joseph Brimacombe, Cairns, Australia. Link to image and further information: http://www.flickr.com/photos/43846774@N02/9129901855/

2013 06 25.432

Follow-up This possible supernova in NGC 4038 was detected with 32 x 2 min images using an infrared filter Photometry: Mag 16.55 +/- 0.16 IR > 700 nm (R for ref) Astrometry: RA 12 01 52.73 Dec -18 52 17.5 These data were collected by Joseph Brimacombe, Cairns, Australia. Link to image and further information: http://www.flickr.com/photos/43846774@N02/9138748715/