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HiTS real-time supernova detections

ATel #7099; Forster, F. (CMM, MAS); Maureira, J. C. (CMM); Galbany, L. (MAS, DAS); de Jaeger, Th. (MAS, DAS); Gonzalez-Gaitan, S. (MAS, DAS); Martinez, J. (DAS); Cabrera, G. (CMM, AURA); San Martin, J. (CMM); Hamuy, M. (MAS, DAS); Estevez, P. (MAS, DIE); Smith, R. C. (CTIO); Vivas, K. (CTIO); Flores, S. (CMM); Huijse, P. (MAS, DIE); Anderson, J. (ESO); F. Bufano (MAS); Pignata, G. (MAS, UNAB); Medina, G. (DAS); Munoz, R. (DAS); Vera, E. (CMM);
on 18 Feb 2015; 11:35 UT
Credential Certification: Francisco Förster (francisco.forster@gmail.com)

Subjects: Optical, Supernovae

Referred to by ATel #: 7108, 7115, 7122, 7131, 7132, 7146, 7148, 7149, 7162, 7164, 7221, 7246, 7289, 7290, 7291

HiTS: The High Cadence Transient Survey (ATELs #5949, #5956) reports the discovery of 4 possible supernova explosions 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 2015-02-16 to 2015-02-18 with a cadence of 1.6 hours using the Dark Energy Camera (DECam). The data analysis was performed in real-time using the National Laboratory for High Performance Computing (NLHPC).

 
Name      |Nickname   |RA (J2000)   | Dec (J2000) | Disc MJD  | Disc Mag  (g) | Age      | Finding Chart           | Image Sequence          | Notes 
SNHiTS15A | Ana Maria | 9:26:21.05  | -0:38:16.99 | 57071.053 | ~22.5         | young    | http://bit.ly/1ARbcmm   | http://bit.ly/1LbTs7Z   | (1)  
SNHiTS15B | Guadalupe | 10:8:10.38  | 2:36:51.80  | 57071.082 | ~22.5         | young    | http://bit.ly/1ARaVzI   | http://bit.ly/1EnwVRy   | (2) 
SNHiTS15C | Clea      | 10:19:19.59 | -6:45:44.93 | 57071.082 | ~23.0         | young    | http://bit.ly/1AksaYs   | http://bit.ly/1yW1TMi   | (3) 
SNHiTS15D | Daniela   | 10:21:19.62 | -6:58:23.34 | 57071.082 | ~23.2         |very young| http://bit.ly/1zn65Wk   | http://bit.ly/17RGmyF   | (4) 

1. Rises 1 mag/day. Near galaxy SDSS J092620.97-003820.7 at photo-z=0.25.
2. Near galaxy SDSS J100810.41+023650.0 with no reported redshift.
3. Outside the SDSS footprint.
4. Non-detection on MJD 57070.3. Outside the SDSS footprint.