J/MNRAS/433/1871 UBVRI griz light curves of SN 2012aw (Bose+, 2013)
Supernova 2012aw. A high-energy clone of archetypal Type IIP SN 1999em.
Bose S., Kumar B., Sutaria F., Kumar B., Roy R., Bhatt V.K., Pandey S.B.,
Chandola H.C., Sagar R., Misra K., Chakraborti S.
<Mon. Not. R. Astron. Soc., 433, 1871-1891 (2013)>
=2013MNRAS.433.1871B 2013MNRAS.433.1871B
ADC_Keywords: Supernovae ; Photometry, UBVRI ; Photometry, SDSS
Keywords: supernovae: general - supernovae: individual: SN 2012aw -
supernovae: individual: SN 1999em -
supernovae: individual: SN 1999gi -
supernovae: individual: SN 2004et - galaxies: individual: NGC 3551
Abstract:
We present densely sampled UBVRI/griz photometric and low-resolution
(6-10Å) optical spectroscopic observations from 4 to 270d after
explosion of a newly discovered Type II SN 2012aw in a nearby
(∼9.9Mpc) galaxy M95. The light-curve characteristics of apparent
magnitudes, colours, bolometric luminosity and the presence and
evolution of prominent spectral features are found to have striking
similarity with the archetypal IIP SNe 1999em, 1999gi and 2004et. The
early time observations of SN 2012aw clearly detect minima in the
light curve of V, R and I bands near 37d after explosion and this we
suggest to be an observational evidence for emergence of recombination
phase. The mid-plateau MV magnitude (-16.67±0.04) lies in between
the bright (~-18) and subluminous (~-15) IIP SNe. The mass of nickel
is 0.06±0.01M☉. The synow modelling of spectra indicate that the
value and evolution of the photospheric velocity is similar to SN
2004et, but about ∼600km/s higher than that of SNe 1999em and 1999gi
at comparable epochs. This trend is more apparent in the line
velocities of Hα and Hβ. A comparison of ejecta velocity
properties with that of existing radiation-hydrodynamical simulations
indicate that the energy of explosion lies in the range
1-2x1051ergs; a further comparison of nebular phase [OI] doublet
luminosity with SNe 2004et and 1987A indicate that the mass of
progenitor star is about 14 to 15M☉. The presence of
high-velocity absorption features in the mid-to-late plateau and
possibly in early phase spectra show signs of interaction between
ejecta and the circumstellar matter; being consistent with its early
time detection at X-ray and radio wavebands.
Description:
The broad-band photometric data in UBVRI Johnson-Cousins and griz
SDSS systems are collected using the 104-cm Sampurnanand Telescope
(ST) at Manora Peak, Nainital and the 130-cm Devasthal Fast Optical
Telescope (DFOT) at Devasthal, Nainital.
Objects:
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RA (ICRS) DE Designation(s)
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10 43 53.76 +11 40 17.9 PTF 12bvh = SN 2012aw
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3a.dat 98 54 Photometric evolution of SN 2012aw, UBVRI
table3b.dat 85 9 Photometric evolution of SN 2012aw, griz
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See also:
B/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)
Byte-by-byte Description of file: table3a.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Obs.Date Observation date (YYYY-MM-DD.dd)
15- 20 F6.2 d JD [6/272] Julian date (JD-2456000)
22- 24 I3 d Phase [4/269] Phase, with reference to the explosion
epoch JD=2456002.59
26- 31 F6.3 mag Umag ?=- Johnson U magnitude
33- 37 F5.3 mag e_Umag ? 1σ rms error on Umag
39- 44 F6.3 mag Bmag ?=- Johnson B magnitude
46- 50 F5.3 mag e_Bmag ? 1σ rms error on Bmag
52- 57 F6.3 mag Vmag ?=- Johnson V magnitude
59- 63 F5.3 mag e_Vmag ? 1σ rms error on Vmag
65- 70 F6.3 mag Rcmag ?=- Cousins R magnitude
72- 76 F5.3 mag e_Rcmag ? 1σ rms error on Rcmag
78- 83 F6.3 mag Icmag ?=- Cousins I magnitude
85- 89 F5.3 mag e_Icmag ? 1σ rms error on Icmag
91- 95 A5 --- Tel Telescope (G1)
96- 98 F3.1 arcsec See FWHM of the median stellar PSF at V-band frame
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Byte-by-byte Description of file: table3b.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Obs.Date Observation date (YYYY-MM-DD.dd)
15- 20 F6.2 d JD Julian date (JD-2456000)
22- 24 I3 d Phase Phase, with reference to the explosion
epoch JD=2456002.59
26- 31 F6.3 mag gmag ?=- SDSS g magnitude
33- 37 F5.3 mag e_gmag ? 1σ rms error on gmag
39- 44 F6.3 mag rmag ?=- SDSS r magnitude
46- 50 F5.3 mag e_rmag ? 1σ rms error on rmag
52- 57 F6.3 mag imag ?=- SDSS i magnitude
59- 63 F5.3 mag e_imag ? 1σ rms error on imag
65- 70 F6.3 mag zmag ?=- SDSS z magnitude
72- 76 F5.3 mag e_zmag ? 1σ rms error on zmag
78- 82 A5 --- Tel Telescope (G1)
83- 85 F3.1 arcsec See FWHM of the median stellar PSF at V-band frame
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Global notes:
Note (G1): Telescope code as follows:
ST = 104-cm Sampurnanand Telescope, ARIES, India
DFOT = 130-cm Devasthal fast optical telescope, ARIES, India
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 09-Jan-2015