J/MNRAS/406/782 Type Ia supernovae luminosities (Sullivan+, 2010)
The dependence of type Ia supernovae luminosities on their host galaxies.
Sullivan M., Conley A., Howell D.A., Neill J.D., Astier P., Balland C.,
Basa S., Carlberg R.G., Fouchez D., Guy J., Hardin D., Hook I.M., Pain R.,
Palanque-Delabrouille N., Perrett K.M., Pritchet C.J., Regnault N.,
Rich J., Ruhlmann-Kleider V., Baumont S., Hsiao E., Kronborg T., Lidman C.,
Perlmutter S., Walker E.S.
<Mon. Not. R. Astron. Soc., 406, 782-802 (2010)>
=2010MNRAS.406..782S 2010MNRAS.406..782S
ADC_Keywords: Supernovae ; Photometry, SDSS ; Stars, masses
Keywords: supernovae: general - cosmology: observations - distance scale
Abstract:
Precision cosmology with Type Ia supernovae (SNe Ia) makes use of the
fact that SN Ia luminosities depend on their light-curve shapes and
colours. Using Supernova Legacy Survey (SNLS) and other data, we show
that there is an additional dependence on the global characteristics
of their host galaxies: events of the same light-curve shape and
colour are, on average, 0.08mag (∼4.0σ) brighter in massive host
galaxies (presumably metal-rich) and galaxies with low specific star
formation rates (sSFR).
Description:
The high-redshift SN Ia data are taken from the SNLS. This programme
used optical imaging data taken as part of the deep component of the
five-year Canada-France-Hawaii Telescope Legacy Survey (CFHT-LS)
using the square-degree 'MegaCam' camera, located in the prime focus
environment 'MegaPrime' on the CFHT.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 52 231 Properties for the SNLS, low-redshift and
Riess et al. (2007ApJ...659...98R 2007ApJ...659...98R) host galaxies
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See also:
B/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)
J/A+A/477/717 : Spectroscopy of Type Ia supernovae (Bronder+, 2008)
J/A+A/506/999 : Photometric Calibration of SNLS (Regnault+, 2009)
J/A+A/523/A7 : Light curves of type Ia supernovae in SNLS (Guy+, 2010)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- SNLS SN name (in Supernova Legacy Survey)
8- 12 F5.3 --- zcmb CMB-frame redshift
14 A1 --- l_imag Limit flag on imag
15- 19 F5.2 mag imag i magnitude
21- 25 F5.2 [Msun] logM* Stellar mass
27- 30 F4.2 [Msun] E_logM* Error on Stellar mass (upper value)
32- 35 F4.2 [Msun] e_logM* Error on stellar mass (lower value)
37 A1 --- l_logSFR Limit flag on logSFR
38- 42 F5.2 [Msun/yr] logSFR Stellar formation rate
44- 47 F4.2 [Msun/yr] E_logSFR ? Error on SFR (upper value)
49- 52 F4.2 [Msun/yr] e_logSFR ? Error on SFR (lower value)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 13-Jan-2011