J/MNRAS/454/95 SN 2011fu UBVRI griz JHKs light curves (Morales-Garoffolo+, 2015)
SN 2011fu: a Type IIb supernova with a luminous double-peaked light curve.
Morales-Garoffolo A., Elias-Rosa N., Bersten M., Jerkstrand A.,
Taubenberger S., Benetti S., Cappellaro E., Kotak R., Pastorello A.,
Bufano F., Dominguez R.M., Ergon M., Fraser M., Gao X., Garcia E.,
Howell D.A., Isern J., Smartt S.J., Tomasella L., Valenti S.
<Mon. Not. R. Astron. Soc., 454, 95-114 (2015)>
=2015MNRAS.454...95M 2015MNRAS.454...95M (SIMBAD/NED BibCode)
ADC_Keywords: Supernovae ; Photometry, UBVRI ; Photometry, SDSS ;
Photometry, infrared
Keywords: supernovae: general - supernovae: individual: SN 2011fu
Abstract:
We present optical and near-infrared observations of the type IIb
supernova (SN) 2011fu from a few days to ∼300d after explosion. The SN
presents a double-peaked light curve (LC) similar to that of SN 1993J,
although more luminous and with a longer cooling phase after the
primary peak. The spectral evolution is also similar to SN 1993J's,
with hydrogen dominating the spectra to ∼40d, then helium gaining
strength, and nebular emission lines appearing from ∼60d
post-explosion. The velocities derived from the P-Cygni absorptions
are overall similar to those of other type IIb SNe. We have found a
strong similarity between the oxygen and magnesium line profiles at
late times, which suggests that these lines are forming at the same
location within the ejecta. The hydrodynamical modelling of the
pseudo-bolometric LC and the observed photospheric velocities suggest
that SN 2011fu was the explosion of an extended star (R∼450R☉),
in which 1.3x1051erg of kinetic energy were released and
0.15M☉ of 56Ni were synthesized. In addition, a better
reproduction of the observed early pseudo-bolometric LC is achieved if
a more massive H-rich envelope than for other type IIb SNe is
considered (0.3M☉). The hydrodynamical modelling of the LC and
the comparison of our late-time spectra with nebular spectral models
for type IIb SNe, point to a progenitor for SN 2011fu with a Zero Age
Main Sequence (ZAMS) mass of 13-18M☉.
Description:
The observational follow-up data of SN 2011fu presented in this paper
cover the period between a few days post-discovery, until the SN
disappeared behind the Sun (end of 2012 February). After that, one
more spectrum and one epoch of gri photometric data were obtained well
into the nebular phase of the SN, 2012 July 20 ut.
Objects:
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RA (2000) DE Designation(s)
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02 08 21.41 +41 29 12.3 SN 2011fu = PSN J02082141+4129123
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 99 14 Characteristics of the instruments used to
acquire the photometric data of SN 2011fu
tablea2.dat 77 28 List of spectroscopic observations of SN 2011fu
tableb1.dat 103 89 Optical Bessell photometry of SN 2011fu
tableb2.dat 61 31 Optical Sloan photometry of SN 2011fu in the
Vega system
tableb3.dat 61 6 NIR photometry of SN 2011fu
tableb4.dat 91 15 Johnson-Cousins optical and 2MASS NIR magnitudes
for the stellar sequence used in the
calibration process of SN 2011fu's photometry
tableb5.dat 57 15 Sloan Vega magnitudes for the stellar sequence
used in the calibration process of
SN 2011fu's photometry
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Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 31 A31 --- Tel Telescope
33- 47 A15 --- Inst Instrument
49- 59 A11 --- FoV Field of view
61- 65 F5.3 arcsec/pix Scale Pixel scale
67- 76 A10 --- Filt Filters
78- 99 A22 --- Key Key for observation
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 "date" Obs.date Observation date
12- 18 F7.1 d JD Julian date (JD-2400000)
20- 24 F5.1 d Phase Phase with respect to our adopted explosion
epoch JD=2455824.5±0.7
26- 37 A12 --- Tel Telescope+instrument
39- 56 A18 --- Grism Grism+filter
58- 67 A10 --- Range Wavelenght range in Angstroem
69- 77 A9 --- Res Resolving power (1)
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Note (1): The resolution was measured from the full width at half-maximum of the
night sky lines. The resolving power values reported here are for a
reference wavelength of 6500Å.
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Byte-by-byte Description of file: tableb1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Obs.date Observation date
12- 18 F7.1 d JD Julian date (JD-2400000)
20- 24 F5.1 d Phase Phase in days with respect to the adopted
explosion date JD=2455824.5±0.7
26- 30 F5.2 mag Umag ?=- Bessell U magnitude not S-corrected
32- 35 F4.2 mag e_Umag ? rms uncertainty on Umag
37- 41 F5.2 mag Bmag ?=- Bessell B magnitude S-corrected
43- 46 F4.2 mag e_Bmag ? rms uncertainty on Bmag
48- 52 F5.2 mag Vmag ?=- Bessell V magnitude S-corrected
54- 57 F4.2 mag e_Vmag ? rms uncertainty on Vmag
59- 63 F5.2 mag Rmag ?=- Bessell R magnitude S-corrected
65- 68 F4.2 mag e_Rmag ? rms uncertainty on Rmag
69 A1 --- n_Rmag [*] * when Sloan r magnitude in Rmag
70- 74 F5.2 mag Imag ?=- Bessell I magnitude S-corrected
76- 79 F4.2 mag e_Imag ? rms uncertainty on Imag
80 A1 --- n_Imag [*] * when Sloan i magnitude in Imag
81-103 A23 --- Key Key for observation
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Byte-by-byte Description of file: tableb2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Obs.date Observation date
12- 18 F7.1 d JD Julian date (JD-2400000)
20- 24 F5.1 d Phase Phase in days with respect to the adopted
explosion date JD=2455824.5±0.7
26- 30 F5.2 mag umag ?=- Sloan u magnitude (Vega)
32- 35 F4.2 mag e_umag ? rms uncertainty on umag
37- 41 F5.2 mag gmag ?=- Sloan g magnitude (Vega)
43- 46 F4.2 mag e_gmag ? rms uncertainty on gmag
48- 52 F5.2 mag zmag ?=- Sloan z magnitude (Vega)
54- 57 F4.2 mag e_zmag ? rms uncertainty on zmag
59- 61 A3 --- Key Key for observation
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Byte-by-byte Description of file: tableb3.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Obs.date Observation date
12- 18 F7.1 d JD Julian date (JD-2400000)
20- 24 F5.1 d Phase Phase in days with respect to the adopted
explosion date JD=2455824.5±0.7
26- 30 F5.2 mag Jmag ?=- 2MASS J magnitude (Vega)
32- 35 F4.2 mag e_Jmag ? rms uncertainty on Jmag
37- 41 F5.2 mag Hmag ?=- 2MASS H magnitude (Vega)
43- 46 F4.2 mag e_Hmag ? rms uncertainty on Hmag
48- 52 F5.2 mag Ksmag ?=- 2MASS Ks magnitude (Vega)
54- 57 F4.2 mag e_Ksmag ? rms uncertainty on Ksmag
59- 61 A3 --- Key Key for observation
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Byte-by-byte Description of file: tableb4.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Star Star number
4- 8 F5.2 mag Umag Johnson U magnitude
10- 13 F4.2 mag e_Umag rms uncertainty on Umag
15- 19 F5.2 mag Bmag Johnson B magnitude
21- 24 F4.2 mag e_Bmag rms uncertainty on Bmag
26- 30 F5.2 mag Vmag Johnson V magnitude
32- 35 F4.2 mag e_Vmag rms uncertainty on Vmag
37- 41 F5.2 mag Rmag Cousins R magnitude
43- 46 F4.2 mag e_Rmag rms uncertainty on Rmag
48- 52 F5.2 mag Imag Cousins I magnitude
54- 57 F4.2 mag e_Imag rms uncertainty on Imag
59- 63 F5.2 mag Jmag ?=- 2MASS J magnitude
65- 68 F4.2 mag e_Jmag ? rms uncertainty on Jmag
70- 74 F5.2 mag Hmag ?=- 2MASS H magnitude
76- 79 F4.2 mag e_Hmag ? rms uncertainty on Hmag
81- 85 F5.2 mag Ksmag ?=- 2MASS Ks magnitude
87- 90 F4.2 mag e_Ksmag ? rms uncertainty on Ksmag
91 A1 --- neKsmag [a] a: no value for the uncertainty is given
by the 2-MASS catalogue
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Byte-by-byte Description of file: tableb5.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Star Star number
4- 8 F5.2 mag umag ?=- Sloan u magnitude (Vega)
10- 13 F4.2 mag e_umag ? rms uncertainty on umag
15- 19 F5.2 mag gmag ?=- Sloan g magnitude (Vega) (1)
21- 24 F4.2 mag e_gmag ? rms uncertainty on gmag
26- 30 F5.2 mag rmag Sloan r magnitude (Vega)
32- 35 F4.2 mag e_rmag rms uncertainty on rmag
37- 41 F5.2 mag imag Sloan i magnitude (Vega)
43- 46 F4.2 mag e_imag rms uncertainty on imag
48- 52 F5.2 mag zmag Sloan z magnitude (Vega)
54- 57 F4.2 mag e_zmag rms uncertainty on zmag
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Note (1): The stars were only measured in one epoch in this band.
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 24-Jun-2016