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J/ApJS/233/6     SNe II light curves & spectra from the CfA     (Hicken+, 2017)

Type II supernova light curves and spectra from the CfA. Hicken M., Friedman A.S., Blondin S., Challis P., Berlind P., Calkins M., Esquerdo G., Matheson T., Modjaz M., Rest A., Kirshner R.P. <Astrophys. J. Suppl. Ser., 233, 6-6 (2017)> =2017ApJS..233....6H (SIMBAD/NED BibCode)
ADC_Keywords: Supernovae ; Photometry, UBVRI ; Photometry, infrared ; Spectroscopy ; Redshifts Keywords: supernovae: general Abstract: We present multiband photometry of 60 spectroscopically confirmed supernovae (SNe): 39 SNe II/IIP, 19 IIn, 1 IIb, and 1 that was originally classified as a IIn but later as a Ibn. Of these, 46 have only optical photometry, 6 have only near-infrared (NIR) photometry, and 8 have both optical and NIR. The median redshift of the sample is 0.016. We also present 195 optical spectra for 48 of the 60 SN. There are 26 optical and 2 NIR light curves of SNe II/IIP with redshifts z>0.01, some of which may give rise to useful distances for cosmological applications. All photometry was obtained between 2000 and 2011 at the Fred Lawrence Whipple Observatory (FLWO), via the 1.2m and 1.3m PAIRITEL telescopes for the optical and NIR, respectively. Each SN was observed in a subset of the u'UBVRIr'i'JHKs bands. There are a total of 2932 optical and 816 NIR light curve points. Optical spectra were obtained using the FLWO 1.5m Tillinghast telescope with the FAST spectrograph and the MMT Telescope with the Blue Channel Spectrograph. Our photometry is in reasonable agreement with select samples from the literature: two-thirds of our star sequences have average V offsets within ±0.02mag and roughly three-quarters of our light curves have average differences within ±0.04mag. The data from this work and the literature will provide insight into SN II explosions, help with developing methods for photometric SN classification, and contribute to their use as cosmological distance indicators. Description: Since all of the optical photometry reported here was produced as part of the CfA3 and CfA4 processing campaigns, see Hicken+ (2009, J/ApJ/700/331) and Hicken+ (2012, J/ApJS/200/12) for greater details on the instruments, observations, photometry pipeline, calibration, and host-galaxy subtraction used to create the CfA SN II light curves. Acknowledging data in publications: You are free to use these spectra for your own research. However, we ask that you please acknowledge your sources. These include: (1) This paper: Hicken et al. 2017ApJS..233....6H (2) Since you downloaded these spectra from the CfA SN Archive, please also include the following acknowledgement in your paper: "This research has made use of the CfA Supernova Archive, which is funded in part by the National Science Foundation through grant AST 0907903." File Summary: File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 56 60 SN II discovery data table2.dat 50 195 Journal of spectroscopic observations table3.dat 118 1228 Standard system star sequences table4.dat 51 3143 Natural-system SN light curves table5.dat 41 3143 Standard-system SN light curves table6.dat 32 816 PAIRITEL NIR natural-system SN light curves spec.dat 49 195 List of spectra for 48 type II supernovae sp/* 36 195 Individual spectrum of 48 type II SNe in ASCII format
See also: VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006) J/AJ/131/527 : UBVRI light curves of 44 type Ia supernovae (Jha+, 2006) J/AJ/135/1598 : Optical spectroscopy of type Ia supernovae (Matheson+, 2008) J/ApJ/689/377 : SNIa as NIR standard candles from PAIRITEL (Wood-Vasey+, 2008) J/ApJ/700/331 : Light curves of type Ia supernovae (CfA3) (Hicken+, 2009) J/MNRAS/395/1409 : Type II-P SN progenitor constraints (Smartt+, 2009) J/ApJ/708/661 : SDSS-II SN Survey: SNe II-P standardization (D'Andrea+, 2010) J/AJ/142/156 : The CSP (DR2): photometry of SNe Ia (Stritzinger+, 2011) J/AJ/143/126 : Spectroscopy of 462 nearby Type Ia supernovae (Blondin+, 2012) J/ApJS/200/12 : CfA4: light curves for 94 type Ia SNe (Hicken+, 2012) J/ApJ/750/99 : The Pan-STARRS1 photometric system (Tonry+, 2012) J/A+A/555/A10 : Light curves of 5 type IIn supernovae (Taddia+, 2013) J/ApJS/213/19 : Optical and near-IR light curves of 64 SNe (Bianco+, 2014) J/MNRAS/442/844 : BVRI light curves of type II-P supernovae (Faran+, 2014) J/AJ/147/99 : Spectroscopy of 73 stripped core-collapse SNe (Modjaz+, 2014) J/ApJS/220/9 : CfAIR2: NIR light curves of Type Ia SNe (Friedman+, 2015) J/ApJ/799/208 : Type IIP supernovae from Pan-STARRS1 (Sanders+, 2015) J/AJ/151/33 : UBVRIz light curves of 51 Type II supernovae (Galbany+, 2016) J/ApJ/827/90 : Spectroscopy of SNe Ib, IIb and Ic (Liu+, 2016) J/ApJ/832/108 : Spectral properties of Type Ic & Ic-bl SNe (Modjaz+, 2016) J/ApJ/826/56 : HST/WFC3 obs. of Cepheids in SN Ia host gal. (Riess+, 2016) J/ApJ/820/33 : R-band light curves of type II supernovae (Rubin+, 2016) J/MNRAS/459/3939 : Type II supernova light curves (Valenti+, 2016) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 8 A8 --- SN Supernova designation 10- 12 A3 --- Type SN Type 14 A1 --- r_Type [ab] Reference for Type (1) 16- 28 A13 --- Host Host Galaxy Name 30 A1 --- r_Host [N ] Reference for Host Galaxy (2) 32- 39 F8.6 --- z [0.002/0.04] Heliocentric redshift 41- 49 A9 --- Ref Discovery Reference, IAUC or CBET 51 A1 --- Opt [y-] Optical light curve? 53 A1 --- NIR [y-] NIR light curve? 55- 56 I2 --- Nsp [0/16] Number of CfA optical spectra
Note (1): Reference for Type as follows: a = Type from http://w.astro.berkeley.edu/bait/2007/sn2007cu.html; b = Type from Pastorello+ (2015, J/MNRAS/449/1921) Note (2): Reference for Host: take from Discovery Reference (see column "Ref") or "N" = Host galaxy from NED.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 8 A8 --- SN Supernova designation 10- 18 F9.3 d MJD Modified Julian Date of observation, mid-point 20- 23 A4 --- Tel Telescope+instrument used (1) 25- 28 I4 0.1nm Wmin [3150/3760] Spectrum minimum wavelength 30- 33 I4 0.1nm Wmax [7368/8476] Spectrum maximum wavelength 35- 38 F4.2 0.1nm/pix Disp [1.4/2] Spectral dispersion 40- 43 F4.2 --- Airmass [1/2.4] Observation airmass 45 I1 --- Nobs [2/4]? Number of co additions 47- 50 I4 s Exp [60/2400] Exposure time, per coadd
Note (1): Telescope and instrument used for this spectrum as follows: FAST = FLWO 1.5m+FAST; MMT = MMT+Blue Channel.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 8 A8 --- SN Supernova designation 10- 11 I2 --- Star [1/87] Standard Star used 13- 14 I2 h RAh Hour of Right Ascension (J2000) 16- 17 I2 min RAm Minute of Right Ascension (J2000) 19- 24 F6.3 s RAs Second of Right Ascension (J2000) 26 A1 --- DE- Sign of the Declination (J2000) 27- 28 I2 deg DEd Degree of Declination (J2000) 30- 31 I2 arcmin DEm Arcminute of Declination (J2000) 33- 37 F5.2 arcsec DEs Arcsecond of Declination (J2000) 39- 44 F6.3 mag Vmag [11.4/18.8] V band magnitude of standard star 46- 50 F5.3 mag e_Vmag [0.01/0.2] Uncertainty in Vmag 52- 53 I2 --- NV [1/12] Number of nights of calibration in V band 56- 61 F6.3 mag U-B [-1/1.4]? U-B color index of standard star 65- 69 F5.3 mag e_U-B [0.04/0.3]? Uncertainty in U-B 71 I1 --- NU [1/7]?=0 Number of nights of calibration in U band 73- 77 F5.3 mag B-V [0.04/2] B-V color index of standard star 79- 83 F5.3 mag e_B-V [0.01/0.2] Uncertainty in B-V 85- 86 I2 --- NB [1/12] Number of nights of calibration in B band 88- 93 F6.3 mag V-r [-0.07/1.1]? V-r color index of standard star 95- 99 F5.3 mag e_V-r [0.009/0.1]? Uncertainty in V-r 101-102 I2 --- Nr [1/12]?=0 Number of nights of calibration in r band (1) 104-109 F6.3 mag V-i [-0.2/2.4]? V-i color index of standard star 111-115 F5.3 mag e_V-i [0.009/0.2]? Uncertainty in V-i 117-118 I2 --- Ni [1/12]?=0 Number of nights of calibration in i band (1)
Note (1): The generic letters r and i are used in the final 4 column headers and should be interpreted as R and I bands, respectively, for SN 2000eo, 2001ez, 2001fa, 2002bx and 2002em and as r' and i' bands, respectively, for the rest. Additional passband information can be found in Hicken+ (2012, J/ApJS/200/12).
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 8 A8 --- SN Supernova designation 10- 11 A2 --- Filt [BUVRIi'r'u' ] Filter used in the observation 13- 23 F11.5 d MJD Modified Julian Date of observation, mid-point 25- 26 I2 --- Nh [0/20] Number of host-galaxy images (1) 28- 34 F7.4 mag omag [14.1/21.9] Observed magnitude in Filt 36- 41 F6.4 mag e_omag [0.01/0.5] Uncertainty in omag (2) 43- 46 A4 --- CfA CfA light curve production campaign 48- 51 A4 --- Cam Camera (3)
Note (1): Number of host-galaxy images subtracted from the same data image. Nhost=0 means no host-galaxy subtraction was performed and the SN was sufficiently removed from the host galaxy. Note (2): The uncertainty is the same as the light curve uncertainty as used in Hicken+ (2009, J/ApJ/700/331) and is the same as σ_pipe in Hicken+ (2012A, J/ApJS/200/12). Note (3): Camera the SN data was acquired with. For CfA4 data, a 1 or 2 is appended to 'KEP' to indicate if it was taken during period 1 (before 2009 August 15 (MJD=55058) or period 2 (after) and which set of natural-system bandpasses should be used. The period is of crucial importance for the color terms used.
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 8 A8 --- SN Supernova designation 10- 11 A2 --- Filt [BUVRIi'r'u' ] Filter used in the observation 13- 23 F11.5 d MJD Modified Julian Date of observation, mid-point 25- 26 I2 --- Nh [0/20] Number of host-galaxy images (1) 28- 34 F7.4 mag omag [14.1/22] Observed magnitude in Filt 36- 41 F6.4 mag e_omag [0.01/0.5] Uncertainty in omag (2)
Note (1): Number of host-galaxy images subtracted from the same data image. Nhost=0 means no host-galaxy subtraction was performed and the SN was sufficiently removed from the host galaxy. Note (2): The uncertainty is the same as the light curve uncertainty as used in Hicken+ (2009, J/ApJ/700/331) and is the same as σ_pipe in Hicken+ (2012A, J/ApJS/200/12).
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 8 A8 --- SN Supernova designation 10 A1 --- Filt [JHK] Filter used in the observation 12- 19 F8.2 d MJD Modified Julian Date of observation, mid-point 21- 26 F6.3 mag omag [13.9/18.8] Observed magnitude in Filt 28- 32 F5.3 mag e_omag [0.001/0.7] Uncertainty in omag
Byte-by-byte Description of file: spec.dat
Bytes Format Units Label Explanations
1- 8 A8 --- SN Supernova designation 10- 39 A30 --- FileName Name of the file in subdirectory sp (1) 41- 49 F9.3 d MJD Modified Julian Date of the spectrum
Note (1): The file naming convention for each spectrum is: <SN name>-<UT date>-<tel/inst>.txt
Byte-by-byte Description of file: sp/*
Bytes Format Units Label Explanations
1- 7 F7.2 0.1nm lambda [3150/8477] Observed wavelength, in Angstroems Å units (1) 9- 22 E14.9 0.1mW/m2/nm Flux Observed flux, erg/s/cm2(2) 24- 36 E13.8 0.1mW/m2/nm e_Flux ? Flux error, one sigma; in erg/s/cm2/Å units (3)
Note (1): The observed wavelength includes a heliocentric correction. Note (2): No attempt has been made to scale the spectra to match the available photometry. The spectra have *not* been de-redshifted or de-reddened. Note (3): The flux error is computed based on the optimal extraction algorithm of Horne (1986PASP...98..609H).
History: From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 08-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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