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J/A+A/523/A7     Light curves of type Ia supernovae in SNLS      (Guy+, 2010)

The Supernova Legacy Survey 3-year sample: Type Ia Supernovae photometric distances and cosmological constraints. Guy J., Sullivan M., Conley A., Regnault N., Astier P., Balland C., Basa S., Carlberg R.G., Fouchez D., Hardin D., Hook I.M., Howell D.A., Pain R., Palanque-Delabrouille N., Perrett K.M., Pritchet C.J., Rich J., Ruhlmann-Kleider V., Balam D., Baumont S., Ellis R.S., Fabbro S., Fakhouri H.K., Fourmanoit N., Gonzalez-Gaitan S., Graham M.L., Hsiao E., Kronborg T., Lidman C., Mourao A.M., Perlmutter S., Ripoche P., Suzuki N., Walker E.S. <Astron. Astrophys. 523, A7 (2010)> =2010A&A...523A...7G
ADC_Keywords: Supernovae ; Photometry, ugriz ; Redshifts Keywords: supernovae: general - cosmology: observations Abstract: We present photometric properties and distance measurements of 252 high redshift Type Ia supernovae (0.15<z<1.1) discovered during the first three years of the Supernova Legacy Survey (SNLS). These events were detected and their multi-colour light curves measured using the MegaPrime/MegaCam instrument at the Canada-France-Hawaii Telescope (CFHT), by repeatedly imaging four one-square degree fields in four bands. Follow-up spectroscopy was performed at the VLT, Gemini and Keck telescopes to confirm the nature of the supernovae and to measure their redshifts. Description: The following files contain the Type Ia supernovae light curves of the Supernova Legacy Survey 3-year sample and the parameters needed to estimate luminosity distances: the apparent rest-frame B-band magnitude at maximum light, a shape parameter (stretch factor or X1) and a colour that approximately corresponds to the rest-frame B-V colour (plus a constant offset) at maximum light in B-band. Those parameters were obtained with two light curve fitters: SALT2 (Guy et al., 2007A&A...466...11G) and SiFTO (Conley et al., 2008ApJ...681..482C). The light curves are in the magnitude system defined in Regnault et al. (2009, Cat. J/A+A/506/999). Fluxes and uncertainties are given for a fiducial zero point of 30, a magnitude is mag=-2.5log10(Flux)+30. An additional table that is not in the paper gives the approximate coordinates of SNe images in MegaCam focal plane. They are needed to estimate the filter transmission function. This data can also be downloaded at the University of Toronto's Research Repository https://tspace.library.utoronto.ca/handle/1807/24512 File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table9.dat 140 285 List of SNLS 3 years type Ia supernova sample with coordinates of SNe in focal plane table11.dat 212 277 SALT2 and SiFTO light curve parameters table10.dat 40 23726 griz light curves of 281 SNLS SNe Ia/Ia*
See also: J/A+A/506/999 : Photometric Calibration of SNLS (Regnault+, 2009) J/MNRAS/406/782 : Type Ia supernovae luminosities (Sullivan+, 2010) Byte-by-byte Description of file: table9.dat
Bytes Format Units Label Explanations
1- 6 A6 --- SNLS SN name (<SNLS NNDNaa> in Simbad) 8- 9 I2 h RAh Right ascension (J2000) 11- 12 I2 min RAm Right ascension (J2000) 14- 19 F6.3 s RAs Right ascension (J2000) 21 A1 --- DE- Declination sign (J2000) 22- 23 I2 deg DEd Declination (J2000) 25- 26 I2 arcmin DEm Declination (J2000) 28- 33 F6.3 arcsec DEs Declination (J2000) 35- 38 I4 d Date1 First observation date, JD-2450000 39- 48 A10 d Dates Following observation date(s), JD-2450000 50- 63 A14 --- Tel Telescopes 65- 74 A10 --- Type SN type 76- 81 F6.4 --- z Redshift (spectroscoic) 83- 88 F6.4 --- e_z Uncertainty on redshift 90 A1 --- r_z [HS] Source of z: S for SN, H for host 92-104 A13 --- Ref References for spectroscopy (1) 106-110 F5.3 --- E(B-V) Milky Way E(B-V) 112-115 A4 --- Phot [griz none] Photometric observations (band) 117 A1 --- f_Phot [abcs] Photometry problem (2) 120-129 F10.6 cm xf x coordinate of SN in focal plane 131-140 F10.6 cm yf y coordinate of SN in focal plane
Note (1): References as follows: Ba09 = Ballan et al., 2009, Cat. J/A+A/507/85 Br08 = Bronder et al., 2008, Cat. J/A+A/477/717 E08 = Ellis et al., 2008ApJ...674...51E Fa10 = Fabro et al. 2010. in prep H05 = Howell et al., 2005ApJ...634.1190H W10 = Walker et al. 2010, in prep Note (2): Note as follows: a = no photometry because of variable host or second SN in host b = close to a bright star c = edge of field s = missing epochs for light curve fit
Byte-by-byte Description of file: table11.dat
Bytes Format Units Label Explanations
1- 6 A6 --- SNLS SN name (<SNLS NNANaa> in Simbad) 8- 14 F7.4 --- z Heliocentric redshift 16- 25 F10.6 mag mb.S2 SALT2 rest-frame B-band magnitude 27- 36 F10.7 mag e_mb.S2 Statistical uncertainty on mb.S2 38- 47 F10.7 mag x1.S2 SALT2 shape parameter x1 49- 58 F10.7 mag e_x1.S2 Statistical uncertainty on x1.S2 60- 69 F10.7 mag c.S2 SALT2 colour parameter 71- 80 F10.7 mag e_c.S2 Statistical uncertainty on c.S2 82- 91 F10.7 --- cov(mb,x1)S2 SALT2 covariance of mb and x1 93-102 F10.7 --- cov(mb,c)S2 SALT2 covariance of mb and c 104-113 F10.7 --- cov(x1,c)S2 SALT2 covariance of x1 and c 115-124 F10.6 mag mb.Si SiFTO rest-frame B-band magnitude 126-135 F10.7 mag e_mb.Si Statistical uncertainty on mb.Si 137-146 F10.7 --- s.Si SiFTO stretch factor 148-157 F10.7 --- e_s.Si Statistical uncertainty on s.Si 159-168 F10.7 mag c.Si SiFTO colour parameter 170-179 F10.7 mag e_c.Si Statistical uncertainty on c.Si 181-190 F10.7 --- cov(mb,s)Si SiFTO covariance of mb and s 192-201 F10.7 --- cov(mb,c)Si SiFTO covariance of mb and c 203-212 F10.7 --- cov(s,c)Si SiFTO covariance of s and c
Byte-by-byte Description of file: table10.dat
Bytes Format Units Label Explanations
1- 6 A6 --- SNLS SN name (<SNLS NNANaa> in Simbad) 8 A1 --- Band [griz] MegaCam pass-band 10- 17 F8.2 d MJD Modified Julian date 19- 29 E11.5 ct Flux Flux in band (1) 31- 40 E10.5 ct e_Flux Statistical uncertainty on Flux
Note (1): SNLS magnitude = -2.5log(Flux)+30.
Acknowledgements: J. Guy, guy(at)lpnhe.in2p3.fr
(End) Patricia Vannier [CDS] 20-Jul-2010
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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