J/ApJ/869/56 Updated calibration of the CSP-I SNe Ia sample (Burns+, 2018)
The Carnegie Supernova Project: absolute calibration and the Hubble constant.
Burns C.R., Parent E., Phillips M.M., Stritzinger M., Krisciunas K.,
Suntzeff N.B., Hsiao E.Y., Contreras C., Anais J., Boldt L., Busta L.,
Campillay A., Castellon S., Folatelli G., Freedman W.L., Gonzalez C.,
Hamuy M., Heoflich P., Krzeminski W., Madore B.F., Morrell N., Persson S.E.,
Roth M., Salgado F., Seron J., Torres S.
<Astrophys. J., 869, 56 (2018)>
=2018ApJ...869...56B 2018ApJ...869...56B
ADC_Keywords: Supernovae; Photometry, ugriz; Photometry, infrared; Redshifts;
Reddening
Keywords: cosmological parameters ; distance scale ; dust, extinction ;
supernovae: general
Abstract:
We present an analysis of the final data release of the Carnegie
Supernova Project I (CSP-I; Krisciunas+ 2017, J/AJ/154/211), focusing
on the absolute calibration of the luminosity-decline rate relation
for Type Ia supernovae (SNe Ia) using new intrinsic color relations
with respect to the color-stretch parameter, sBV, enabling improved
dust extinction corrections. We investigate to what degree the
so-called fast-declining SNe Ia can be used to determine accurate
extragalactic distances. We estimate the intrinsic scatter in the
luminosity-decline rate relation and find it ranges from ±0.13mag to
±0.18mag with no obvious dependence on wavelength. Using the Cepheid
variable star data from the SH0ES project (Riess+ 2016, J/ApJ/826/56),
the SN Ia distance scale is calibrated and the Hubble constant is
estimated using our optical and near-infrared sample, and these
results are compared to those determined exclusively from a
near-infrared subsample. The systematic effect of the supernova's host
galaxy mass is investigated as a function of wavelength and is found
to decrease toward redder wavelengths, suggesting this effect may be
due to dust properties of the host. Using estimates of the dust
extinction derived from optical and near-infrared wavelengths and
applying these to the H band, we derive a Hubble constant
H0=73.2±2.3km/s/Mpc, whereas using a simple B-V color correction
applied to the B band yields H0=72.7±2.1km/s/Mpc. Photometry of two
calibrating SNe Ia from the CSP-II sample, SN 2012ht and SN 2015F, is
presented and used to improve the calibration of the SN Ia distance
ladder.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 103 139 Properties of Carnegie Supernova Project I (CSP-I)
and calibration SNe Ia
table6.dat 39 713 Photometry of CSP SNe Ia (SN 2012ht and SN 2015F)
in Cepheid hosts
table7.dat 114 41 Optical photometry of secondary standards in the
standard systems of Smith+ (2002AJ....123.2121S 2002AJ....123.2121S)
and Landolt (1992AJ....104..340L 1992AJ....104..340L)
table8.dat 75 29 NIR photometry of Persson+ (1998AJ....116.2475P 1998AJ....116.2475P)
secondary standards
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See also:
II/183 : UBVRI Photometric Standards (Landolt 1992)
J/AJ/128/3053 : Absolute flux distribution of BD +17 4708 (Bohlin+, 2004)
J/AJ/128/2239 : JHKs photometry of 92 LMC Cepheids (Persson+, 2004)
J/ApJ/659/122 : Improved distances to type Ia supernovae (Jha+, 2007)
J/ApJ/700/1097 : Light curve parameters of SN Ia (Hicken+, 2009)
J/ApJ/707/1449 : Local hosts of SNe Ia (Neill+, 2009)
J/AJ/139/120 : Low-redshift Type-Ia supernovae (Folatelli+, 2010)
J/AJ/139/519 : Carnegie supernova project. SNe Ia (Contreras+, 2010)
J/MNRAS/406/782 : Type Ia supernovae luminosities (Sullivan+, 2010)
J/ApJ/731/120 : Intrinsic SN Ia light curves (Mandel+, 2011)
J/ApJ/730/119 : HST/WFC3 obs. of Cepheids in SN Ia hosts (Riess+, 2011)
J/AJ/142/156 : The CSP (DR2): photometry of SNe Ia (Stritzinger+, 2011)
J/ApJS/200/12 : CfA4: light curves for 94 type Ia SNe (Hicken+, 2012)
J/MNRAS/425/1789 : Berkeley supernova Ia program. I. (Silverman+, 2012)
J/ApJ/773/53 : Type Ia SNe spectroscopy by the CSP (Folatelli+, 2013)
J/ApJS/219/8 : SFR for WISE + SDSS spectroscopic galaxies (Chang+, 2015)
J/ApJS/220/9 : CfAIR2: NIR light curves of Type Ia SNe (Friedman+, 2015)
J/ApJS/219/13 : SNe Ia light curves for the LSQ-CSP sample (Walker+, 2015)
J/MNRAS/452/4307 : From optical to IR photometry of SN 2013dy (Pan+, 2015)
J/A+A/573/A2 : SN 2012Z spectra (Stritzinger+, 2015)
J/ApJ/826/56 : HST/WFC3 obs. of Cepheids in SN Ia host gal. (Riess+, 2016)
J/AJ/154/211 : The CSP (DR3): photometry of low-z SNeIa (Krisciunas+, 2017)
J/ApJ/848/56 : Relationships between SNe Ia & host galaxies (Uddin+, 2017)
J/A+A/609/A134 : CSP-I photometry for 34 supernovae (Stritzinger+, 2018)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- SN Supernova name (YYYYAA)
8- 14 F7.5 --- zhel [0.0008/0.09] Heliocentric redshift
16- 22 F7.5 --- zcmb [0.001/0.09] CMB redshift
24- 28 F5.3 --- sBV [0.2/1.4] Color-stretch parameter
30- 34 F5.3 --- e_sBV [0.03/0.09] sBV error
36- 40 F5.3 mag dm15(B) [0.6/2] Δm15(B) parameter
42- 46 F5.3 mag e_dm15(B) [0.06/0.2] dm15(B) error
48- 53 F6.3 mag Vmax [9.9/19.3] V magnitude at maximum
55- 59 F5.3 mag e_Vmax [0.002/0.08] Vmax error
61- 65 F5.3 mag EBV [0.007/2] B-V color excess
67- 71 F5.3 mag e_EBV [0.008/0.08] EBV error
73- 75 F3.1 --- Rv [0.3/3.1] Reddening slope (RV)
77- 79 F3.1 --- e_Rv [0.1/1.4] Rv error
81- 87 F7.4 mag covER [-0.02/0.009] Covariance between E(B-V) and Rv
89- 93 F5.2 mag muCV [29.1/37.9] Cross-validated distance modulus
95- 98 F4.2 mag e_muCV [0.04/0.9] muCV error
100-103 F4.2 --- Q [0.15/1] Quality parameter
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- --- [SN]
3- 8 A6 --- SN Supernova name (2012ht or 2015F)
10- 16 F7.1 d MJD [56282.3/57249.4] Modified Julian Day;
JD-2400000.5
18- 18 A1 --- Filt [ugriBVYJH] Filter used (1)
20- 25 F6.3 mag omag [13/19.4] Magnitude of observation in Filter
27- 31 F5.3 mag e_omag [0.005/0.06] Error in omag
33- 39 F7.3 d Phase [-15/142.5] Time in days from B-maximum
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Note (1): Optical (ugriBV) photometry of SN 2012ht is on the old,
pre-October 2013 CSP-I natural system, whereas SN 2015F is on the new,
post-October 2013 CSP-I natural system. All NIR (YJH) photometry is on
the RetroCam natural system.
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- --- [SN]
3- 8 A6 --- SN Supernova name (2012ht or 2015F)
11- 12 I2 --- ID [1/31] Standard Star ID
14- 15 I2 h RAh [7/10] Hour of Right Ascension (J2000)
17- 18 I2 min RAm Minute of Right Ascension (J2000)
20- 24 F5.2 s RAs Second of Right Ascension (J2000)
26- 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- 36 F4.1 arcsec DEs Arcsecond of Declination (J2000)
38- 43 F6.3 mag umag [14.5/19.1]? u' band magnitude
45- 49 F5.3 mag e_umag [0.005/0.2]? Uncertainty in u'mag
51- 56 F6.3 mag gmag [13.3/19.4] g' band magnitude
58- 62 F5.3 mag e_gmag [0.003/0.2] Uncertainty in g'mag
64- 69 F6.3 mag rmag [12.9/18.3] r' band magnitude
71- 75 F5.3 mag e_rmag [0.002/0.1] Uncertainty in r'mag
77- 82 F6.3 mag imag [12.8/17.8] i' band magnitude
84- 88 F5.3 mag e_imag [0.002/0.2] Uncertainty in i'mag
90- 95 F6.3 mag Bmag [/18.4]?=0 B band magnitude
97-101 F5.3 mag e_Bmag [/0.2]?=0 Uncertainty in Bmag
103-108 F6.3 mag Vmag [13.139/18.586] V band magnitude
110-114 F5.3 mag e_Vmag [0.003/0.1] Uncertainty in Vmag
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 A2 --- --- [SN]
3- 8 A6 --- SN Supernova name (2012ht or 2015F)
10- 12 I3 --- ID [101/123] Standard Star ID
14- 15 I2 h RAh [7/10] Hour of Right Ascension (J2000)
17- 18 I2 min RAm Minute of Right Ascension (J2000)
20- 24 F5.2 s RAs Second of Right Ascension (J2000)
26- 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- 36 F4.1 arcsec DEs Arcsecond of Declination (J2000)
38- 43 F6.3 mag Ymag [/18]? Y band magnitude
45- 49 F5.3 mag e_Ymag [/0.5]? Uncertainty in Ymag
51- 56 F6.3 mag Jmag [13.1/17.5] J band magnitude
58- 62 F5.3 mag e_Jmag [0.01/0.5] Uncertainty in Jmag
64- 69 F6.3 mag Hmag [12.6/17]? H band magnitude
71- 75 F5.3 mag e_Hmag [0.01/0.3]? Uncertainty in Hmag
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 07-Nov-2019