Discovery certificate for object 2018bfo
TNS Astronomical Transient Report No. 18179 [ 2018TNSTR.583....1R ]

Date Received (UTC): 2018-05-06 23:31:19
Sender: Dr. Gautham Narayan
Source Group: None

A. Rest (STScI), A. Zenteno(NOAO/CTIO), Giovanni Strampelli (STScI), B. E. Tucker (Mt Stromlo Observatory, ANU), P. M. Garnavich (Notre Dame), S. Margheim (Gemini Observatory), D. Kasen (UCB/LBL), R. Olling, E. Shaya (U Maryland), G. Narayan (STScI), A. Villar (CfA), F. Forster (U. de Chile), R. Mushotzky (UMD), R. Chris Smith (NOAO/CTIO) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2018bfo
Discoverer internal name: C17-0104
Coordinates (J2000): RA = 13:54:32.458 (208.635242) DEC = -06:13:37.63 (-6.227119)
Discovery date: 2018-04-06 14:52:52 (JD=2458215.12005)

Potential host galaxy: SDSS J135432.42-061337.7
Host redshift: 0.116

Remarks: Associated with K2 object 212776501, separation: 0.34". Was not reported previously because of proximity to host-center. Despite small separation from host-center, the object is likely to be an SNIa based on light curve shape.

Photometry

Discovery (first detection):
Discovery date: 2018-04-06 14:52:52
Flux: 19.526 ABMag
Filter: g-Sloan
Instrument: DECAM
Telescope: CTIO - 4-m Victor M. Blanco Telescope

Last non-detection:
Archival info: Other
Remarks: Not detected in g, i DECam imaging on 2018-03-11

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2018bfo