J/ApJ/904/14 Optical and NIR observation of SN (Ia) 2017cbv (Wang+, 2020)
Optical and Near-infrared Observations of the Nearby SN Ia 2017cbv.
Wang L., Contreras C., Hu M., Hamuy M.A., Hsiao E.Y., Sand D.J.,
Anderson J.P., Ashall C., Burns C.R., Chen J., Diamond T.R., Davis S.,
Forster F., Galbany L., Gonzalez-Gaitan S., Gromadzki M., Hoeflich P., Li
W., Marion G.H., Morrell N., Pignata G., Prieto J.L., Phillips M.M.,
Shahbandeh M., Suntzeff N.B., Valenti S., Wang L., Wang X., Young D.R., Yu
L., Zhang J.
<Astrophys. J., 904, 14 (2020)>
=2020ApJ...904...14W 2020ApJ...904...14W
ADC_Keywords: Supernovae; Photometry, UBVRIJKLMNH
Keywords: Type Ia supernovae
Abstract:
Supernova (SN) 2017cbv in NGC5643 is one of a handful of Type Ia
supernovae (SNeIa) reported to have excess blue emission at early
times. This paper presents extensive BVRIYJHKs-band light curves of
SN2017cbv, covering the phase from -16 to +125days relative to B-band
maximum light. The SN2017cbv reached a B-band maximum of
11.710±0.006mag, with a postmaximum magnitude decline of
Δm15(B)=0.990±0.013mag. The SN suffered no host reddening
based on Phillips intrinsic color, the Lira-Phillips relation, and the
CMAGIC diagram. By employing the CMAGIC distance modulus
µ=30.58±0.05mag and assuming H0=72km/s/Mpc, we found that
0.73M☉ 56Ni was synthesized during the explosion of SN2017cbv,
which is consistent with estimates using reddening- and distance-free
methods via the phases of the secondary maximum of the near-IR- (NIR-)
band light curves. We also present 14 NIR spectra from -18 to +49 days
relative to the B-band maximum light, providing constraints on the
amount of swept-up hydrogen from the companion star in the context of
the single degenerate progenitor scenario. No Paβ emission
feature was detected from our postmaximum NIR spectra, placing a
hydrogen mass upper limit of 0.1M☉. The overall optical/NIR
photometric and NIR spectral evolution of SN2017cbv is similar to that
of a normal SN Ia, even though its early evolution is marked by a flux
excess not seen in most other well-observed normal SNe Ia. We also
compare the exquisite light curves of SN2017cbv with some Mch delayed
detonation models and sub-Mch double detonation models.
Description:
Our photometric observations of SN2017cbv started on 2017 March 13.17,
∼16 days before B-band maximum. Data were collected in the BVRIYJHKs
bands with the Cerro Tololo Inter-American Observatory (CTIO) 1.3m
telescope and dual-channel optical/NIR camera ANDICam. This instrument
has an optical field of view (FOV) of 6.3"x6.3" (0.37"/pixel) and an
NIR FOV of 2.4"x2.4" (0.27"/pixel).
Objects:
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RA (2000) DE Designation(s)
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14 32 34.42 -44 08 02.8 SN 2017cbv = SN 2017cbv
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
fig9.dat 31 549 The optical and NIR light curves of SN 2017cbv
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
J/AJ/130/873 : Properties of BQS objects in the SDSS DR3 area (Jester+, 2005)
J/ApJ/659/122 : Improved distances to type Ia supernovae (Jha+, 2007)
J/ApJ/689/377 : SNe Ia NIR standard candles from PAIRITEL (Wood-Vasey+, 2008)
J/AJ/137/4186 : UBVRI standards around celestial equator (Landolt, 2009)
J/ApJ/699/L139 : Spectral parameters of SNe Ia (Wang+, 2009)
J/ApJ/721/1608 : Absolute UV magnitudes of type Ia SNe (Brown+, 2010)
J/AJ/139/519 : Carnegie supernova project. SNe Ia (Contreras+, 2010)
J/AJ/139/120 : Low-redshift Type-Ia supernovae (Folatelli+, 2010)
J/ApJ/733/124 : Cepheids in M101 observed with HST (Shappee+, 2011)
J/MNRAS/410/585 : SN 2009dc BVRI light curves (Silverman+, 2011)
J/ApJ/753/22 : Swift/UVOT observations of SN 2011fe (Brown+, 2012)
J/A+A/554/A27 : 2011fe spectrophotometric time series (Pereira+, 2013)
J/other/Sci/340.170 : Classifications of 188 SNe Ia (Wang+, 2013)
J/ApJ/795/142 : Defining photometric peculiar SNe Ia (Gonzalez-Gaitan+, 2014)
J/AJ/148/1 : Optical and ultraviolet photometry of SN 2012fr (Zhang+, 2014)
J/MNRAS/448/2766 : Strong lines in optical/NIR for SN 2002bo (Blondin+, 2015)
J/MNRAS/448/1345 : YJK for Type Ia supernovae (Dhawan+, 2015)
J/A+A/578/A9 : Optical and NIR spectra of SN iPTF13ebh (Hsiao+, 2015)
J/A+A/579/A40 : PESSTO catalog (Smartt+, 2015)
J/ApJ/869/56 : Updated calibration of the CSP-I SNe Ia sample (Burns+, 2018)
J/ApJ/853/62 : Optical & NIR spectra and LCs of SN2016ija (Tartaglia+, 2018)
J/ApJ/863/90 : Optical and NIR LCs of the nearby SN 2017cbv (Wee+, 2018)
J/ApJ/877/152 : UV to NIR light curves of type Ia SN 2017erp (Brown+, 2019)
J/ApJ/870/L1 : K2 observations of Ia supernova SN 2018oh (Dimitriadis+, 2019)
J/A+A/627/A174 : Early light curve of SN 2013gy (Holmbo+, 2019)
J/ApJ/882/30 : Optical photometry of type Ia SN 2014J (Li+, 2019)
J/ApJ/870/13 : K2 lc alternative analysis of ASASSN-18bt (Shappee+, 2019)
J/ApJ/882/120 : CfA, CSP, BSP and LOSS spec. & phot. of SNe Ia (Wang+, 2019)
J/ApJ/895/118 : Optical & NIR photometry 2 Ia type supernovae (Burns+, 2020)
J/A+A/634/A37 : TURTLS Light curves of 56Ni distributions (Magee+, 2020)
J/ApJ/898/56 : UVOT, ZTF gri LCs and spectra of SN Ia 2019yvq (Miller+, 2020)
Byte-by-byte Description of file: fig9.dat
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Bytes Format Units Label Explanations
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1- 8 F8.2 d MJD [57825/57966] Modified Julian Date
10- 15 F6.2 d Phase [-15.7/126] Days since B-band maximum (1)
17- 18 A2 --- Filt Filter
20- 25 F6.3 mag mag [11.6/17.1] Apparent magnitude in Filter (2)
27- 31 F5.3 mag e_mag [0.01/0.09] Error in mag (3)
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Note (1): Relative to the epoch of B-band maximum, MJD=57840.87 from
Gauss process regression
Note (2): For Filters BVRI, magnitude values are calibrated in natural system.
For filters YJHKs, magnitude values are calibrated with 2MASS system.
Note (3): Uncertainty coming from PSFEx optical photometry was set to 0.01mag
if it is smaller than 0.01mag. There is a potential 0.02magnitude
systematic error measured from optical aperture photometry.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 02-Mar-2022