J/ApJ/882/30 Optical photometry of type Ia SN 2014J (Li+, 2019)
Observations of type Ia supernova 2014J for nearly 900 days and constraints on
its progenitor system.
Li W., Wang X., Hu M., Yang Yi, Zhang J., Mo J., Chen Z., Zhang T.,
Benetti S., Cappellaro E., Elias-Rosa N., Isern J., Morales-Garoffolo A.,
Huang F., Ochner P., Pastorello A., Reguitti A., Tartaglia L., Terreran G.,
Tomasella L., Wang L.
<Astrophys. J., 882, 30 (2019)>
=2019ApJ...882...30L 2019ApJ...882...30L
ADC_Keywords: Supernovae; Photometry, UBVRI
Keywords: supernovae: general ; supernovae: individual (SN 2014J)
Abstract:
We present extensive ground-based and Hubble Space Telescope (HST)
photometry of the highly reddened, very nearby SN Ia 2014J in M82,
covering the phases from 9 days before to about 900 days after the
B-band maximum. SN 2014J is similar to other normal SNe Ia near the
maximum light, but it shows flux excess in the B band in the early
nebular phase. This excess flux emission can be due to light
scattering by some structures of circumstellar materials located at a
few 1017cm, consistent with a single-degenerate progenitor system or
a double-degenerate progenitor system with mass outflows in the final
evolution or magnetically driven winds around the binary system. At
t~+300 to ~+500 days past the B-band maximum, the light curve of SN
2014J shows a faster decline relative to the 56Ni decay. That feature
can be attributed to the significant weakening of the emission
features around [FeIII]λ4700 and [FeII]λ5200 rather than
the positron escape, as previously suggested. Analysis of the HST
images taken at t>600 days confirms that the luminosity of SN 2014J
maintains a flat evolution at the very late phase. Fitting the
late-time pseudobolometric light curve with radioactive decay of
56Ni, 57Ni, and 55Fe isotopes, we obtain the mass ratio
57Ni/56Ni as 0.035±0.011, which is consistent with the
corresponding value predicted from the 2D and 3D delayed-detonation
models. Combined with early-time analysis, we propose that
delayed-detonation through the single-degenerate scenario is most
likely favored for SN 2014J.
Description:
Our ground-based optical photometry of SN 2014J was obtained with the
following telescopes: (1) the 0.8m THCA-NAOC Telescope (TNT) at
Beijing Xinglong Observatory (BAO) in China; (2) the 2.4m Lijiang
Telescope (LJT) of Yunnan Astronomical Observatory (YNAO); (3) the
2.56m Nordic Optical Telescope (NOT) of Roque de los Muchachos
Observatory in the Canary Islands; (4) the 0.8m Telescopi Joan Oro
(TJO) located at the Montsec Astronomical Observatory; (5) the Asiago
Copernico 1.82m telescope (COP) with AFOSC; (6) the Asiago Schmidt
67/92 (SCH) with SBIG and (7) the 3.58m Telescopio Nazionale Galileo
(TNG) with LRS between 2014-2015. See Section 2.1.
Very-late-time photometry of SN 2014J can be extracted from the
archival images obtained through the HST WFC3/UVIS programs
(Proposal 13626, PI: Lawrence, 14146, PI: Lawrence and
14700, PI: Sugerman). The wavelength coverage of F438W and F555W
filters is similar to that of the B and V bands, respectively.
Objects:
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RA (ICRS) DE Designation(s) (Dist)
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09 55 42.12 +69 40 25.9 SN 2014J = iPTF 14jj (D∼3.53Mpc)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 78 90 Ground-based photometry of SN 2014J
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See also:
B/hst : HST Archived Exposures Catalog (STScI, 2007)
J/ApJ/699/L139 : Spectral parameters of SNe Ia (Wang+, 2009)
J/other/NewA/20.30 : BVRI light curves of 3 SN (Munari+, 2013)
J/other/Sci/340.170 : Classifications of 188 SNe Ia (Wang+, 2013)
J/ApJ/788/L21 : Photometry of SN 2014J from HST (Amanullah+, 2014)
J/ApJ/805/74 : SN2014J Swift/UVOT light curves (Brown+, 2015)
J/MNRAS/454/3816 : Cobalt emission in nebular phase spectra (Childress+, 2015)
J/ApJ/799/105 : KELT light curve of the M82 SN 2014J (Siverd+, 2015)
J/A+A/585/A19 : SN 2014J BV light curves (Bonanos+, 2016)
J/A+A/592/A40 : Photometry of SN 2013gh and iPTF13dge (Ferretti+, 2016)
J/ApJ/841/48 : UBVR and IR photometry of SN 2011fe (Ia) (Shappee+, 2017)
J/ApJ/870/L1 : K2 obs. of type Ia SN 2018oh (Dimitriadis+, 2019)
J/ApJ/870/13 : K2 LC alternative analysis of ASASSN-18bt (Shappee+, 2019)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 yr Obs.Y [2014/2015] UT Year of the observation
6- 7 I2 "month" Obs.M UT Month of the observation
9- 12 F4.1 d Obs.D UT Day of the observation in decimal days
14- 19 F6.1 d Epoch [-9.7/434.2] Epoch, days after tBmax
on 2014-02-02.1 (JD-2456690.1)
21- 25 F5.2 mag Umag [12/18]? Apparent U band magnitude
27- 30 F4.2 mag e_Umag [0.02/0.2]? Uncertainty in Umag
32- 36 F5.2 mag Bmag [11.8/20]? Apparent B band magnitude
38- 41 F4.2 mag e_Bmag [0.02/0.16]? Uncertainty in Bmag
43- 47 F5.2 mag Vmag [10.5/19.1]? Apparent V band magnitude
49- 52 F4.2 mag e_Vmag [0.01/0.14]? Uncertainty in Vmag
54- 58 F5.2 mag Rmag [10/18.4]? Apparent R band magnitude
60- 63 F4.2 mag e_Rmag [0.01/0.18]? Uncertainty in Rmag
65- 69 F5.2 mag Imag [9/17]? Apparent I band magnitude
71- 74 F4.2 mag e_Imag [0.01/0.14]? Uncertainty in Imag
76- 78 A3 --- Tel Telescope code (1)
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Note (1): Telescope code as follows:
COP = the Asiago Copernico 1.82m telescope with AFOSC (11 occurrences).
LJT = the 2.4m Lijiang Telescope of Yunnan Astronomical Observatory
(17 occurrences).
NOT = the 2.56m Nordic Optical Telescope of Roque de los
Muchachos Observatory (1 occurrence).
TJO = the 0.8m Telescopi Joan Oro at Montsec Astronomical Observatory
(24 occurrences).
TNG = the 3.58m Telescopio Nazionale Galileo with LRS (1 occurrence).
TNT = the 0.8m THCA-NAOC Telescope at Beijing Xinglong Observatory
(36 occurrences).
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 09-Feb-2021