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PESSTO spectroscopic classification of La Silla-Quest Transients

ATel #4037; S. Valenti, A. Pastorello (INAF - Padova Astronomical Observatory), S. Benitez-Herrera, S. Taubenberger (MPA Garching), S. J. Smartt (Queen's University Belfast), M. Sullivan (University of Oxford), S. Benetti, E. Cappellaro, L. Greggio, S. Hachinger, M. Turatto, L. Zampieri (INAF - Padova), C. Baltay, N. Ellman, E. Hadjiyska, R. McKinnon, D. Rabinowitz (Yale University), P. Nugent (LBNL/UCB), P. A. Mazzali (INAF - Padova & MPA), K. Maguire, Yen-Chen Pan (Oxford), I. Hook (Oxford & INAF - Obs. Rome), M. Fraser, C. Inserra, L. Magill, J. Maund, M. McCrum, R. Kotak, K. W. Smith, D. R. Young, T.-W. Chen, D. Wright (Queen's University Belfast), R. Scalzo, B. P. Schmidt, S. A. Sim, F. Yuan (Australian National University), V. Stanishev (CENTRA-IST, Lisbon), N. Patat (European Southern Observatory), M. T. Botticella, M. Dall'Ora (INAF - Capodimonte), M. Limongi (INAF - Rome), M. L. Pumo (Padua University), M. Dennefeld (IAP & UPMC), N. Elias-Rosa (IEEC & CSIC, Barcelona) N. Blagorodnova, N. A. Walton, (IoA, Cambridge), F. Cellier-Holzem (LPNHE Paris), S. Bongard, N. Regnault, R. Pain, L. Le Guillou (LPNHE, CNRS & UPMC), W. Hillebrandt, M. Kromer, A. Sternberg (MPA Garching), F. Bufano, G. Pignata (Universidad Andres Bello, Chile), J. P. Anderson, M. Hamuy (Universidad de Chile, Millennium Center for Supernova Studies), A. Clocchiatti (PUC) , J. J. Eldridge (University of Auckland), U. Feindt, M. Kowalski (University of Bonn), E. Kankare, S. Mattila (University of Turku), E. S. Walker (SNS, Pisa), R. Amanullah, C. Fransson, A. Goobar, J. Sollerman, M. Ergon (Stockholm University), A. Gal-Yam, O. Yaron (Weizmann Institute for Science)
on 12 Apr 2012; 13:18 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Stephen Smartt (s.smartt@qub.ac.uk)

Subjects: Optical, Supernovae, Transient

PESSTO is the "Public ESO Spectroscopic Survey of Transient Objects" (http://www.pessto.org) using the ESO New Technology Telescope (NTT) at La Silla and the EFOSC2 (optical) and SOFI (near-IR) spectrographs. It is one of two currently running public spectroscopic surveys at ESO. The survey details are as follows:
- PESSTO has 90 nights per year on the NTT: 9 lunations (August to April), 10 nights per lunation (we are not observing May-July).
- PESSTO will run for 4 years from April 2012, with 1 further year pending a formal review.
- Optical spectra of transients are obtained with EFOSC2, with the goal of classifying about 2000 supernovae.
- We aim to provide 150 supernovae (or unusual optical transients) with full optical and near-IR spectroscopic time series (about 10 epochs of spectra).
- PESSTO survey partners are the La Silla-Quest survey (ATel #3812), SkyMapper (Keller et al. 2007, PASA, 24, 1), Pan-STARRS1 (ATel #2668) and CHASE (Pignata et al. 2009, RMxAC, 35, 317).

As a public survey, all PESSTO raw data are publicly available in the ESO archive. The reduced classification spectra and associated information will be immediately released through the PESSTO website (via the WIS Experimental Astrophysics Spectroscopy System at the Weizmann Institute; Yaron and Gal-Yam arXiv:1204.1891). PESSTO commenced on 2012 April 11. Here we report the classifications from this first night. The targets were all supplied by the La Silla-Quest survey (Hadjiyska et al., ATel #3812; Rabinowitz et al. 2011, ApJ, 732, 512). The La Silla-QUEST (LSQ) transient survey is conducted with Yale University's 160-megapixel QUEST camera on the 1.0-m Schmidt Telescope of the European Southern Observatory at La Silla, Chile.

Name | RA (J2000) | Dec (J2000) | Disc. Date | Disc. source | Disc. Mag | Redshift | Type | Phase | Notes
LSQ12btn | 09:21:30.50 | -09:41:29:76 | 20120408 | LSQ | 18.25 | 0.05 | Ia | -2:-3 |
LSQ12btw | 10:10:28.82 | 05:32:12.48 | 20120409 | LSQ | 19.14 | 0.0571 | Ibn | +15 | 06jc-like
LSQ12brx | 10:17:59.90 |-05:36:10.80 | 20120407 | LSQ | 17.62 | 0.054 | Ia | +5 | 06N
LSQ12bry | 10:16:38.57 |-06:46:35:76 | 20120407 | LSQ | 17.27 | 0.042 | IIn | young? |
LSQ12brw | 10:20:43.38 |-04:33:20.88 | 20120407 | LSQ | 17.45 | 0.04 | Ia | +19 |
LSQ12bnt | 12:51:32.23 | 04:01:25.68 | 20120401 | LSQ | 19.58 | .129 | Ia | +8 |
LSQ12brb | 14:14:52.87 | 20:09:06.48 | 20120404 | LSQ | 17.91 | 0.081 | Ia | +8 |
LSQ12bpg | 15:07:31.61 | 20:33:00.36 | 20120331 | LSQ | 19.07 | 0.076 | Ia | +4 |
LSQ12bpy | 13:36:40.37 |-21:51:15.48 | 20120329 | LSQ | 20.44 | 0.11 | Ia | -1 |
LSQ12biu | 14:19:20.65 | -19:50:37.07 | 20120321 | LSQ | 19.39 | 0.136 | IIn | ~50 | long rise
LSQ12bpr | 15:47:21.48 |-03:32:36.92 | 20120402 | LSQ | 19.77 | 0.102 | Ia | +12 |
LSQ12bri |15:48:49.50 | 23:20:32.42 | 20120406 | LSQ | 17.08 | 0.030 | II |+2 |
LSQ12brs | 13:46:28.93 | -03:49:18.34 | 20120406 | LSQ | 17.70 | 0.065 | Ia | +8 |
Classifications from SNID (Blondin & Tonry 2007, ApJ, 666, 1024) and GELATO (Harutyunyan et al., 2008, A&A, 488, 383).