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J/ApJ/788/L21     Measured photometry of SN 2014J from HST    (Amanullah+, 2014)

The peculiar extinction law of SN 2014J measured with the Hubble Space Telescope. Amanullah R., Goobar A., Johansson J., Banerjee D.P.K., Venkataraman V., Joshi V., Ashok N.M., Cao Y., Kasliwal M.M., Kulkarni S.R., Nugent P.E., Petrushevska T., Stanishev V. <Astrophys. J., 788, L21 (2014)> =2014ApJ...788L..21A (SIMBAD/NED BibCode)
ADC_Keywords: Supernovae ; Photometry, HST ; Photometry, UBVRI ; Photometry, infrared ; Extinction Keywords: dust, extinction - galaxies: individual: Messier 82 - supernovae: individual: SN 2014J Abstract: The wavelength dependence of the extinction of Type Ia SN 2014J in the nearby galaxy M82 has been measured using UV to near-IR photometry obtained with the Hubble Space Telescope, the Nordic Optical Telescope, and the Mount Abu Infrared Telescope. This is the first time that the reddening of an SN Ia is characterized over the full wavelength range of 0.2-2 µm. A total-to-selective extinction, RV≥ 3.1, is ruled out with high significance. The best fit at maximum using a Galactic type extinction law yields RV=1.4±0.1. The observed reddening of SN 2014J is also compatible with a power-law extinction, Aλ/AV=(λ/λV)p as expected from multiple scattering of light, with p=-2.1±0.1. After correcting for differences in reddening, SN 2014J appears to be very similar to SN 2011fe over the 14 broadband filter light curves used in our study. Description: We obtained observations (Program DD-13621; PI: Goobar) of SN 2014J with HST in the four UV broadband filters F218W, F225W, F275W, and F336W for seven epochs using a total of seven HST orbits during Cycle 21. In addition to this we also obtained optical broad-, medium-, and narrowband photometry in filters F467M, F631N, and F845M for visits (1, 3) and optical broadband photometry using F438W, F555W, and F814W for the remaining five visits. All observations were obtained with the Wide-Field Camera-3 (WFC3) using the UVIS aperture UVIS2-C512C-SUB. Objects: --------------------------------------------------------------- RA (ICRS) DE Designation(s) --------------------------------------------------------------- 09 55 42.12 +69 40 25.9 SN 2014J = PSN J09554214+6940260 --------------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 58 162 The measured photometry of SN 2014J from HST/WFC3, NOT/ALFOSC and the Mount Abu infrared telescope
See also: I/254 : The HST Guide Star Catalog, Version 1.2 (Lasker+ 1996) J/ApJ/753/22 : Swift/UVOT observations of SN 2011fe (Brown+, 2012) J/ApJ/805/74 : SN2014J Swift/UVOT light curves (Brown+, 2015) J/A+A/585/A19 : SN 2014J BV light curves (Bonanos+, 2016) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 7 F7.1 d MJD Modified Julian Date of observation 9- 12 F4.1 --- Phase Effective, lightcurve width corrected, phase with respect to B band maximum 14- 18 A5 --- Filter Filter used in the observation 20- 24 F5.2 mag mag Observed magnitude in Filter (1) 26- 29 F4.2 mag e_mag Uncertainty in mag 31- 34 F4.2 mag AX Galactic extinction in Filter (2) 36 A1 --- Match [DM] V band match code (3) 38- 42 F5.2 mag Vmag V band magnitude (1) 44- 47 F4.2 mag e_Vmag Uncertainty in Vmag 49- 52 F4.2 mag AV Galactic extinction in the V band 54- 58 F5.2 mag Color Corresponding synthesized color of SN 2011fe
Note (1): In the natural Vega system. Note (2): The rest-frame magnitude can be obtained as mag - AX Note (3): Code as follows: D = Measured for the same epoch; M = Calculated using the SNooPy model. The mean error of the data used for the fit was adopted as the uncertainty of the magnitude.
History: From electronic version of the journal
(End) Prepared by [AAS], Tiphaine Pouvreau [CDS] 03-Jul-2017
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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