HiTS real-time supernova detections

ATel #7146; F. Forster (CMM, MAS), J. C. Maureira (CMM), S. Gonzalez-Gaitan (MAS, DAS), G. Medina (DAS), G. Pignata (MAS, UNAB), L. Galbany (MAS, DAS), J. San Martin (CMM), M. Hamuy (MAS, DAS), P. Estevez (MAS, DIE), R. C. Smith (CTIO), K. Vivas (CTIO), S. Flores (CMM), P. Huijse (MAS, DIE), G. Cabrera (CMM, AURA), J. Anderson (ESO), F. Bufano (MAS), Th. de Jaeger (MAS, DAS), J. Martinez (DAS), R. Munoz (DAS), E. Vera (CMM), C. Perez (MAS, DIE)
on 26 Feb 2015; 22:00 UT
Credential Certification: Francisco Förster (francisco.forster@gmail.com)

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HiTS, the High Cadence Transient Survey (see ATELs #5949, #5956, #7099, #7108, #7115, #7122, #7131, #7132), reports the discovery of 5 additional supernova candidates detected using a novel real-time high-cadence image subtraction / classification pipeline developed at the Center for Mathematical Modelling (CMM) in collaboration with the Millennium Institute for Astrophysics (MAS). Observations were performed on the 4m Blanco Telescope at Cerro Tololo (CTIO) from 2015-02-17 to 2015-02-25 using the Dark Energy Camera (DECam). The data analysis was performed in real-time using the National Laboratory for High Performance Computing (NLHPC). Reported magnitudes are based on the difference with respect to reference images taken on 2015-02-17, therefore they are magnitude upper limits (flux lower limits). Reported ages are based on the difference between the actual discovery date and the last point where the forced photometry on the position of the candidate was larger than three standard deviations, i.e. they are lower limit age estimations.

 
Name      | Nickname | RA (J2000)  | Dec (J2000)  | Discovery UT     | Discovery Mag  (g) |  Age       | Finding Chart         | Image Sequence        | Notes 
SNHiTS15ak| Susana   | 10:23:22.16 | -05:53:31.40 | 2015-02-25 04:40 | < 23.07 +0.18-0.16 | > 3 days | http://bit.ly/1BhGCCn   | http://bit.ly/1vCIxR4   | (1) 
SNHiTS15al| Goretti  | 10:39:11.74 | +00:26:01.52 | 2015-02-25 04:50 | < 22.75 +0.15-0.13 | > 3 days | http://bit.ly/182j9ZU   | http://bit.ly/1E0gOwA   | (2) 
SNHiTS15am| Nancy    | 10:30:03.82 | -03:47:59.24 | 2015-02-25 04:52 | < 23.35 +0.21-0.17 | > 3 days | http://bit.ly/1DWSZ7r   | http://bit.ly/1BBmr4f   | (3) 
SNHiTS15an| Jacinta  | 10:26:12.25 | -01:55:13.31 | 2015-02-25 04:41 | < 23.41 +0.23-0.19 | > 2 days | http://bit.ly/1E0h3rr   | http://bit.ly/18q1fkY   | (4) 
SNHiTS15ao| Ignacia  | 10:15:32.76 | -02:58:16.70 | 2015-02-25 04:38 | < 22.97 +0.22-0.18 | > 6 days | http://bit.ly/1LMUt6I   | http://bit.ly/182jv2x   | (5) 

1. Not in SDSS footprint
2. Close to SDSS J103911.64+002604.2 with photo-z of 0.163
3. Not in SDSS footprint
4. Close to SDSS J102611.95-015512.3 with photo-z of 0.346
5. Close to SDSS J101532.63-025817.7 with photo-z of 0.239