J/ApJ/645/488 SN type Ia luminosities (Wang+, 2006)
Determination of the Hubble constant, the intrinsic scatter of luminosities of
type Ia supernovae, and evidence for nonstandard dust in other galaxies.
Wang X., Wang L., Pain R., Zhou X., Li Z.
<Astrophys. J., 645, 488-505 (2006)>
=2006ApJ...645..488W 2006ApJ...645..488W
ADC_Keywords: Supernovae ; Photometry, UBVRI
Keywords: Cepheids - cosmological parameters - cosmology: observations -
distance scale - dust, extinction - supernovae: general
Abstract:
A sample of 109 Type Ia supernovae (SNe Ia) with recession velocity
≲30000km/s is compiled from published SN Ia light curves to
explore the expansion rate of the local universe. Based on the color
parameter ΔC12 and the decline rate δm15, we found that
the average absorption-to-reddening ratios for SN Ia host galaxies are
RUBVI=4.37±0.25, 3.33±0.11, 2.30±0.11, and 1.18±0.11, which
are systematically lower than the standard values in the Galaxy. We
investigated the correlations of the intrinsic luminosity with
light-curve decline rate, color index, and SN environmental
parameters.
Description:
The major sources of SN Ia light curves are (1) the BVI light curves
of 29 SNe Ia from the earlier Calan/Tololo SN survey (CTIO sample, see
Hamuy et al., 1996AJ....112.2391H 1996AJ....112.2391H, 1996AJ....112.2398H 1996AJ....112.2398H,
1996AJ....112.2408H 1996AJ....112.2408H), the BVRI light curves of 22 SNe Ia collected by
the CfA (CfA I sample; see Riess et al., 1999AJ....117..707R 1999AJ....117..707R), (3) the
UBVRI light curves of another 44 SNe Ia from the CfA SN monitoring
campaign (CfA II sample; see Jha et al., 2006, Cat. J/AJ/131/527),
and (4) the Las Campanas/CTIO observing campaign, which covers
broadband UBVRIJHK photometry (Krisciunas et al., 2001AJ....122.1616K 2001AJ....122.1616K,
2003AJ....125..166K 2003AJ....125..166K, 2004AJ....127.1664K 2004AJ....127.1664K, 2004AJ....128.3034K 2004AJ....128.3034K).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 122 109 Parameters of well-observed nearby SNe Ia
refs.dat 215 35 References
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See also:
II/227 : The Asiago Supernova Catalogue 1999 (Barbon+, 1999)
II/256 : Sternberg Supernova Catalogue, 2004 version (Tsvetkov+, 2004)
J/A+A/317/423 : Revised photometry of SNIa (Patat, 1997)
J/AJ/112/2408 : Light Curves of 29 SNe (Hamuy+ 1996)
J/A+A/437/789 : Restframe I-band light curves of SN Ia (Nobili+, 2005)
J/AJ/131/527 : UBVRI light curves of 44 type Ia supernovae (Jha+, 2006)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 A7 --- SN SN designation
9 A1 --- n_SN [abcd] Individual note (1)
11- 25 A15 --- Galaxy Host galaxy name (6)
27- 31 I5 km/s vCMB Redshift in the reference frame of the
cosmic microwave background (CMB)
33- 37 F5.2 mag Umax ?=- Fitted peak U magnitude (2)
39- 40 I2 mmag e_Umax ? rms uncertainty on Umax
42- 46 F5.2 mag Bmax ?=- Fitted peak B magnitude (2)
48- 49 I2 mmag e_Bmax ? rms uncertainty on Bmax
51- 55 F5.2 mag Vmax Fitted peak V magnitude (2)
57- 58 I2 mmag e_Vmax rms uncertainty on Vmax
60- 64 F5.2 mag Imax ?=- Fitted peak I magnitude (2)
66- 67 I2 mmag e_Imax ? rms uncertainty on Imax
69- 72 F4.2 mag Dm15 Reddening-free decline rate Δm15 (3)
74- 75 I2 mmag e_Dm15 rms uncertainty on Dm15
77- 80 F4.2 mag DC12 B-V colour excess 12 days after B maximum (4)
82- 83 I2 mmag e_DC12 rms uncertainty on DC12
85- 89 F5.3 mag E(B-V)g Galactic reddening following Schlegel et al.
(1998ApJ...500..525S 1998ApJ...500..525S)
91- 95 F5.2 mag E(B-V)t ?=- Reddening in the host galaxy as derived
from the tail of the color curves (5)
97- 98 I2 mmag e_E(B-V)t ? rms uncertainty on E(B-V)t
100-104 F5.2 mag E(B-V)12 ?=- Reddening in the host galaxy as
determined from the post-maximum color DC12
106-107 I2 mmag e_E(B-V)12 ? rms uncertainty on E(B-V)12
109-112 F4.2 mag E(B-V)h Adopted reddening in the host galaxy
114-115 I2 mmag e_E(B-V)h rms uncertainty on E(B-V)h
117-122 A6 --- Refs References, detailed in refs.dat file
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Note (1): Note as follows:
a = SN 1991T/SN 1999aa-like SNe.
b = SN 1991bg-like SNe.
c = SN 2001ay is the SN Ia with the broadest light curve (Howell &
Nugent, 2004, in Cosmic Explosions in Three Dimensions:
Asymmetries in Supernovae and Gamma-Ray Bursts, ed. P. Hoflich,
P. Kumar & J.C. Wheeler (Cambridge: Cambridge Univ. Press), 151)
d = SN 2002cx displayed the most unique spectral and photometric
features (Li et al., 2003PASP..115..453L 2003PASP..115..453L).
Note (2): Fitted peak magnitudes in UBVI bands, corrected for the Galactic
reddening from Schlegel et al. (1998ApJ...500..525S 1998ApJ...500..525S) and the
K-corrections from Nugent et al. (2002PASP..114..803N 2002PASP..114..803N).
Note (3): Dm15=Bmag(+15days)-Bmag(max). Corrected for the small reddening effect
(Phillips et al., 1999AJ....118.1766P 1999AJ....118.1766P)
Note (4): Corrected for Galactic reddening.
Note (5): Phillips et al. (1999AJ....118.1766P 1999AJ....118.1766P);
Altavilla et al. (2004MNRAS.349.1344A 2004MNRAS.349.1344A)
Note (6): Anonymous is Anon J234014+2612 (note from CDS)
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Ref Reference code
4- 22 A19 --- BibCode BibCode
24- 44 A21 --- Aut Author's name
46-215 A170 --- Com Comments
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History:
* 07-Jan-2008 : From electronic version of the journal
* 24-Jul-2008 : 3 names corrected in table1
(End) Patricia Vannier [CDS] 02-Oct-2007