iPTF discoveries of recent type Ia supernovae
ATel #8080; S. Papadogiannakis, R. Ferretti, C. Fremling, L. Hangard, E. Karamehmetoglu, A. Nyholm, T. Petrushevska, R. Roy (OKC), A. De Cia, P. Vreeswijk, A. Horesh, I. Manulis, I. Sagiv, A. Rubin, O. Yaron, G. Leloudas, D. Khazov, M. Soumagnac, S. Knezevic (Weizmann), S. B. Cenko (NASA/GSFC), J. Capone (University of Maryland), M. Bartakke on behalf of the intermediate Palomar Transient Factory
on 22 Sep 2015; 09:48 UT
Credential Certification: Rahman Amanullah (rahman@fysik.su.se)
Subjects: Optical, Supernovae, Transient
The intermediate Palomar Transient Factory (ATel #4807)
reports the discovery and classification of the following Type Ia SNe.
Our automated candidate vetting to distinguish a real astrophysical source (1.0) from bogus artifacts (0.0) is powered by three generations of machine learning algorithms:
RB2 (Brink et al. 2013MNRAS.435.1047B), RB4 (Rebbapragada et al. 2015AAS...22543402R) and RB5 (Wozniak et al. 2013AAS...22143105W).
See ATel #7112 for additional details.
Name | RA (J2000) | Dec (J2000) | Discovery date | Mag. | Abs.Mag. | Band | Redshift | Phase | Type | Spec. date | Instrument | Observers/Reducers | Scanner/s | RB2/RB4/RB5 | Notes
iPTF15cma | 01:32:33.109 | +42:38:34.69 | 2015-08-21.48 | 20.34 | -17.55 | PTF-g | 0.084 | -6.6 | SN Ia | 2015-09-09 | DCT | S.B. Cenko & J. Capone/S.B. Cenko | I. Manulis | 0.37/0.65/0.77 | (1)
iPTF15cpp | 00:20:28.228 | -01:03:40.73 | 2015-09-05.36 | 18.28 | -18.83 | PTF-g | 0.064 | -7.5 | SN Ia | 2015-09-08 | DCT | S.B. Cenko & J. Capone/S.B. Cenko | M. Bartakke | 0.67/0.71/0.86 | (1) (2)
[Dates are in UT; the estimated phase is days with respect to peak light.]
(1) Classification and phase obtained from SNID (Blondin & Tonry, 2007, ApJ, 666, 1024)
(2) Found as part of an outreach event "Fysik i Kungsträdgården" in central Stockholm
