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J/ApJ/841/48      UBVR and IR photometry of SN 2011fe (Ia)      (Shappee+, 2017)

Whimper of a bang: documenting the final days of the nearby Type Ia supernova 2011fe. Shappee B.J., Stanek K.Z., Kochanek C.S., Garnavich P.M. <Astrophys. J., 841, 48 (2017)> =2017ApJ...841...48S
ADC_Keywords: Supernovae ; Photometry, UBVRI ; Photometry, infrared Keywords: supernovae: general ; supernovae: individual (SN 2011fe) Abstract: Using the Hubble Space Telescope (HST) and the Large Binocular Telescope, we followed the evolution of the Type Ia supernova (SN Ia) 2011fe for an unprecedented 1840 days past B-band maximum light and over a factor of 7 million in flux. At 1840 days, the 4000-17000Å quasi-bolometric luminosity is just (420±20)L. By measuring the late-time quasi-bolometric light curve, we present the first confident detection of 57Co decay in a SN Ia light curve and estimate a mass ratio of log(57Co/56Co)=-1.59-0.07+0.06. We do not have a clean detection of 55Fe, but find a limit of 55Fe/57Co<0.22 with 99% confidence. These abundance ratios provide unique constraints on the progenitor system because the central density of the exploding white dwarf(s) dictates these nucleosynthetic yields. The observed ratios strongly prefer the lower central densities of double-degenerate models (55Fe/57Co=0.27) over the higher central densities of near-Chandrasekhar-mass single-degenerate models (55Fe/57Co=0.68). However, additional theoretical studies predicting isotopic yields from a broader range of progenitor systems are motivated by these unique observations. We will continue to observe SN 2011fe for another ∼600 days with HST and possibly beyond. Description: We analyzed pre- and post-explosion images of SN 2011fe from the Large Binocular Camera (LBC) and the NIR spectrograph LUCI on the Large Binocular Telescope (LBT) and the Wide Field Camera 3 (WFC3) and the Advanced Camera for Surveys (ACS) on HST. We obtained 28 epochs of LBT/LBC Uspec, B-, V-, and R-band imaging of M101 between 2008 March and 2016 February as part of a program searching for failed SNe (Kochanek+ 2008ApJ...684.1336K ; Gerke+ 2011, J/ApJ/743/176 ; 2015MNRAS.450.3289G). We also obtained 3 epochs of LBT/LUCI J-band imaging of SN 2011fe between 2012 May and 2013 February. We also obtained four epochs of HST data using the WFC3 UVIS and IR cameras (GO-13737 and 14166) starting in 2014 October. We used the WFC3/UVIS F438W (B), F555W (V), F600LP (R+I), F110W (Y+J), and F160W (H) filters. Finally, for completeness, we also present archival HST WFC3/UVIS, ACS, and WFC3/IR photometry in the F336W (U), F475W (g), F625W (r), F775W (i), F105W (Y), F125W (J), and F160W (H) filters acquired during 2015 January (GO-13824; PI W. Kerzendorf). Objects: ---------------------------------------------------------- RA (ICRS) DE Designation(s) ---------------------------------------------------------- 14 03 05.71 +54 16 25.2 SN 2011fe = PTF 11kly ---------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 54 85 Photometric observations
See also: B/hst : HST Archived Exposures Catalog (STScI, 2007) B/sn : Asiago Supernova Catalogue (Barbon et al., 1999-) J/ApJ/743/176 : BVI photometry of Cepheids in M81 (Gerke+, 2011) J/ApJ/733/124 : Cepheids in M101 observed with HST (Shappee+, 2011) J/ApJ/749/18 : Swift/UVOT observations of 12 nearby SN-Ia (Brown+, 2012) J/ApJ/753/22 : Swift/UVOT observations of SN 2011fe (Brown+, 2012) J/MNRAS/426/2668 : Soft X-ray emission of SNIa progenitors (Nielsen+, 2012) J/other/NewA/20.30 : BVRI light curves of 3 SN (Munari+, 2013) J/A+A/554/A27 : 2011fe spectrophotometric time series (Pereira+, 2013) J/MNRAS/444/3258 : Velocities and EW of PTF SNe Ia (Maguire+, 2014) J/MNRAS/445/2440 : SN with associated Planck CMB temperatures (Yershov+, 2014) J/ApJ/788/48 : X-ray through NIR photometry of NGC 2617 (Shappee+, 2014) J/ApJ/795/142 : Photometric peculiar SNe Ia (Gonzalez-Gaitan+, 2014) J/ApJS/215/9 : PHAT X. UV-IR photometry of M31 stars (Williams+, 2014) J/ApJS/220/9 : CfAIR2: NIR light curves of Type Ia SNe (Friedman+, 2015) J/ApJS/220/20 : Si and Ca high-velocity features in SNe Ia (Zhao+, 2015) J/MNRAS/446/3895 : The rising light curves of Type Ia supernovae (Firth+, 2015) J/MNRAS/448/1345 : YJK for Type Ia supernovae (Dhawan+, 2015) J/MNRAS/451/1973 : Type Ia supernovae high-velocity features (Silverman+, 2015) J/MNRAS/456/2848 : Properties of 500 SNe and their 419 hosts (Hakobyan+, 2016) J/ApJ/826/144 : Follow-up observations of SNIa ASASSN-14lp (Shappee+, 2016) J/ApJ/836/232 : Swift-UVOT obs. analysis of 29 SNe Ia (Brown+, 2017) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 11 F11.3 d JD Observation date; Julian Date 13- 18 A6 --- Filt Filter (U_spec,B,V,R,J,F110W,F160W,F438W,F555W, F600LP or "bol") 20- 24 F5.2 10+29W Fbol [1.6/13.8]? Bolometric flux (in 10+36erg/s units) 26- 29 F4.2 10+29W e_Fbol [0.09/0.3]? Uncertainty in Fbol 31- 35 F5.2 mag omag [16.3/27.5]? Observed Vega magnitude in Filt 37- 40 F4.2 mag e_omag [0.01/0.9]? Uncertainty in omag 42- 54 A13 --- Tel Telescope/Instrument used
History: From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 17-Jan-2018
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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