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J/A+A/537/A141      UBVRI light curves of SN 2009E          (Pastorello+, 2012)

SN 2009E: a faint clone of SN 1987A. Pastorello A., Pumo M.L., Navasardyan H., Zampieri L., Turatto M., Sollerman J., Taddia F., Kankare E., Mattila S., Nicolas J., Prosperi E., San Segundo Delgado A., Taubenberger S., Boles T., Bachini M., Benetti S., Bufano F., Cappellaro E., Cason A.D., Cetrulo G., Ergon M., Germany L., Harutyunyan A., Howerton S., Hurst G.M., Patat F., Stritzinger M., Strolger L.-G., Wells W. <Astron. Astrophys. 537, A141 (2012)> =2012A&A...537A.141P
ADC_Keywords: Supernovae ; Photometry, UBVRI Keywords: supernovae: general - supernovae: individual: SN 2009E - supernovae: individual: SN 1987A - supernovae: individual: SN 1998A Abstract: 1987A-like events form a rare sub-group of hydrogen-rich core-collapse supernovae that are thought to originate from the explosion of blue supergiant stars. Although SN 1987A is the best known supernova, very few objects of this group have been discovered and, hence, studied. In this paper we investigate the properties of SN 2009E, which exploded in a relatively nearby spiral galaxy (NGC 4141) and that is probably the faintest 1987A-like supernova discovered so far. We also attempt to characterize this subgroup of core-collapse supernovae with the help of the literature and present new data for a few additional objects. The lack of early-time observations from professional telescopes is compensated by frequent follow-up observations performed by a number of amateur astronomers. This allows us to reconstruct a well-sampled light curve for SN 2009E. Spectroscopic observations which started about 2 months after the supernova explosion, highlight significant differences between SN 2009E and the prototypical SN 1987A. Modelling the data of SN 2009E allows us to constrain the explosion parameters and the properties of the progenitor star, and compare the inferred estimates with those available for the similar SNe 1987A and 1998A. The light curve of SN 2009E is less luminous than that of SN 1987A and the other members of this class, and the maximum light curve peak is reached at a slightly later epoch than in SN 1987A. Late-time photometric observations suggest that SN 2009E ejected about 0.04M of 56Ni, which is the smallest 56Ni mass in our sample of 1987A-like events. Modelling the observations with a radiation hydrodynamics code, we infer for SN 2009E a kinetic plus thermal energy of about 0.6 foe, an initial radius of ∼7x1012cm and an ejected mass of ∼19M. The photospheric spectra show a number of narrow (v∼1800km/s) metal lines, with unusually strong BaII lines. The nebular spectrum displays narrow emission lines of H, NaI, [CaII] and [OI], with the [OI] feature being relatively strong compared to the [CaII] doublet. The overall spectroscopic evolution is reminiscent of that of the faint 56Ni-poor type II-plateau supernovae. This suggests that SN 2009E belongs to the low-luminosity, low 56Ni mass, low-energy tail in the distribution of the 1987A-like objects in the same manner as SN 1997D and similar events represent the faint tail in the distribution of physical properties for normal type II-plateau supernovae. Objects: ----------------------------------------- RA (2000) DE Designation(s) ----------------------------------------- 12 09 49.6 +58 50 50 SN 2009E ----------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 85 128 Calibrated U B V R I band magnitudes of SN 2009E
See also: B/sn : Asiago Supernova Catalogue (Barbon et al., 1999-) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 10 A10 "DD/MM/YYYY" Obs.Date Observation date 12- 21 F10.2 d JD Julian date 23 A1 --- l_Umag Limit flag on Umag 24- 28 F5.2 mag Umag ?=- Calibrated U magnitude 30- 33 F4.2 mag e_Umag ? rms uncertainty on Umag 35- 39 F5.2 mag Bmag ?=- Calibrated B magnitude 41- 44 F4.2 mag e_Bmag ? rms uncertainty on Bmag 46 A1 --- l_Vmag Limit flag on Vmag 47- 51 F5.2 mag Vmag ?=- Calibrated V magnitude 53- 56 F4.2 mag e_Vmag ? rms uncertainty on Vmag 58 A1 --- l_Rmag Limit flag on Rmag 59- 63 F5.2 mag Rmag ?=- Calibrated R magnitude 65- 68 F4.2 mag e_Rmag ? rms uncertainty on Rmag 70 A1 --- l_Imag Limit flag on Imag 71- 75 F5.2 mag Imag ?=- Calibrated I magnitude 77- 80 F4.2 mag e_Imag ? rms uncertainty on Imag 82- 83 I2 --- Inst Code for the different instrumental configurations (1) 84- 85 A2 --- n_Inst [* ] Note (2)
Note (1): Instrument code as follows: 1 = 0.36-m C14 reflector + Apogee AP7 CCD camera (Obs. T. Boles, Coddendham Observatory, Suffolk, UK) 2 = 0.50-m Telescope + Apogee U6 CCD camera (Obs. M. Yoshida, Akeno Observatory/ICRR, Yamanashi, Japan) 3 = 0.28-m C11 reflector + SBIG ST-8XME Kaf1602E CCD camera (Obs. J. Nicolas, Vallauris, France) 4 = 0.28-m C11 reflector + SBIG ST-8XME Kaf1602E CCD camera (Obs. J. M. Llapasset, Perpignan, France) 5 = 0.36-m C14 reflector + Apogee AP7 CCD camera (Obs. O. Trondal, Groruddalen, Oslo, Norway) 6 = 0.36m Meade LX200 Telescope + SBIG ST-9XE CCD camera (Obs. E. Prosperi, Osservatorio Astron. di Castelmartini, Larciano, Italy) 7 = 0.3-m Takahashi Mewlon 300 + SBIG ST-8E NABG camera (obs. W. Wells, Gras-002, New Mexico, USA) 8 = 2.0-m Faulkes Telescope North + EM01 (Faulkees Telescope Archive - Las Cumbres Observatory, Mt. Haleakala, Hawaii Islands, USA) 9 = 0.35-m Bradford Robotic Telescope + FLI MaxCam CM2-1 camera with E2V CCD47-10 (Obs. G. Hurst, Tenerife Observatory, Canary Islands, Spain) 10 = 0.20-m C8 reflector + SBIG ST-9 Kaf0261 CCD camera (obs. A. San Segundo Delgado, Observatorio El Guijo, Galapagar, Madrid, Spain) 11 = 0.25-m Newton Telescope + Meade DSI Pro camera with Sony EXView HAD CCD (Obs. R. Mancini and F. Briganti, Associazione Astronomica Isaac Newton, Stazione di Gavena, Cerreto Guidi, Italy) 12 = 0.40-m reflector + DTA camera with Kodak Kaf0260 CCD (G. Iacopini, Osservatorio della Tavolaia, Associazione Astronomica Isaac Newton, Santa Maria a Monte, Pisa, Italy) 13 = 0.25-m Meade 10" LX200 Telescope + SBIG ST-8XME Kaf1602E CCD camera (Obs. A. D. Cason, Dawsonville, Georgia, USA) 14 = 0.5-m Newton-Cassegrain Telescope + Hi-Sis 44 CCD camera (Obs. A. Dimai, Osservatorio di Col Driuscie, Cortina, Italy) 15 = 0.3-m Takahashi Mewlon 300 + FLI IMG1024 DM camera (obs. S. Howerton, Gras-001, New Mexico, USA) 16 = 1.82-m Copernico Telescope + AFOSC (INAF - Osservatorio Astronomico di Asiago, Mt. Ekar, Asiago, Italy) 17 = 0.30-m Meade LX200 Telescope + SBIG ST-10XME CCD camera (Obs. E. Prosperi, Skylive Remote Facility, Osservatorio B40 Skylive, Pedata, Catania, Italy) 18 = 2.56-m Nordic Optical Telescope + ALFOSC (La Palma, Canary Islands, Spain) 19 = 0.7-m Ritchey-Chretien Telescope + Apogee Alta U9000 camera with Kodak Kaf-09000 CCD (Obs. A. Englaro, I. Bano and G. Cetrulo, Osservatorio Astronomico di Polse di Cougnes, Zuglio, Udine, Italy) 20 = 2.2-m Calar Alto Telescope + CAFOS (German-Spanish Astronomical Center, Andalucia, Spain) 21 = 3.58-m Telescopio Nazionale Galileo + Dolores (Fundacion Galileo Galilei - INAF, La Palma, Canary Islands, Spain) Note (2): Notes as follows: * = Unfiltered observations rescaled to R-band magnitudes ** = two epochs in which both filtered (V or I band) and unfiltered observations were collected. ' = g'-band observation converted into Johnson-Bessell V band.
Acknowledgements: Andrea Pastorello, andrea.pastorello(at)
(End) Patricia Vannier [CDS] 01-Dec-2011
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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