J/AJ/139/120 Low-redshift Type-Ia supernovae (Folatelli+, 2010)
The Carnegie Supernova Project: analysis of the first sample of low-redshift
Type-Ia supernovae.
Folatelli G., Phillips M.M., Burns C.R., Contreras C., Hamuy M.,
Freedman W.L., Persson S.E., Stritzinger M., Suntzeff N.B., Krisciunas K.,
Boldt L., Gonzalez S., Krzeminski W., Morrell N., Roth M., Salgado F.,
Madore B.F., Murphy D., Wyatt P., Li W., Filippenko A.V., Miller N.
<Astron. J., 139, 120-144 (2010)>
=2010AJ....139..120F 2010AJ....139..120F
ADC_Keywords: Supernovae ; Redshifts ; Photometry
Keywords: distance scale - dust, extinction -
galaxies: distances and redshifts - galaxies: ISM -
supernovae: general
Abstract:
An analysis of the first set of low-redshift (z<0.08) Type Ia
supernovae (SNe Ia) monitored by the Carnegie Supernova Project
between 2004 and 2006 is presented. The data consist of well-sampled,
high-precision optical (ugriBV) and near-infrared (NIR; YJHKs) light
curves in a well-understood photometric system.
Description:
The Carnegie Supernova Project (CSP) carries out its follow-up
observations with the Las Campanas Observatory (LCO) Swope 1m
telescope using optical ugriBV bands, and NIR YJH bands. Additionally,
YJHKs photometry is obtained with the Wide-field Infrared Camera
(WIRC) at the du Pont 2.5m telescope of LCO.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 53 34 Observational properties of the SNe Ia used in
the analysis
table2.dat 74 281 Light-curve parameters
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See also:
J/A+A/437/789 : Restframe I-band light curves of SN Ia (Nobili+, 2005)
J/ApJ/645/488 : SN type Ia luminosities (Wang+, 2006)
J/ApJ/700/1097 : Light curve parameters of SN Ia (Hicken+, 2009)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- --- [SN]
4- 9 A6 --- SN SN name
11- 16 F6.4 --- zh Heliocentric redshift from the NASA/IPAC
Extragalactic Database (NED)
18- 23 F6.4 --- zCMB Redshift in the frame of the 3K CMB (NED)
24 A1 --- n_zCMB [a] Note on zCMB (1)
26- 30 F5.3 mag E(B-V) Galactic reddening (NED)
32- 35 F4.2 mag Dm15(B) Observed decline rate Δm15(B)
37- 39 F3.2 mag e_Dm15(B) rms uncertainty on Dm15(B)
41- 45 F5.2 mag ?=- Average distance modulus from fits of
Section 4.2
47- 49 F3.2 mag e_ ? rms uncertainty on
51- 53 A3 --- Best [Yes/No ] Does the SN belong to the
"best-observed" sample?
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Note (1): a: Value of zCMB corresponding to the systemic recession velocity
of the group ARP 327.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- --- [SN]
4- 9 A6 --- SN SN name
11 A1 --- f_SN [B] Indicates part of "best-observed" group
13 A1 --- Band Filter name
15- 21 F7.2 d Tmax Julian Date of maximum; minus 2453000
23- 26 F4.2 d e_Tmax Uncertainty in Tmax
28- 33 F6.3 mag mmax Apparent peak magnitude; K-corrected
35- 39 F5.3 mag e_mmax Uncertainty in mmax
41- 45 F5.3 mag Dm ? Decline rate (1)
47- 51 F5.3 mag e_Dm ? Uncertainty Dm
53- 57 F5.1 d Epmin First epoch covered by data (2)
59- 64 F6.1 d Epmax Last epoch covered by data (2)
66- 67 I2 --- Np [2/62] Number of data points
69- 74 A6 --- Fit Fit method; "Spline" or "Templ." (template fit)
see section 2.2 for details.
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Note (1): Measured as the difference in magnitudes at an epoch "t" and
maximum light in each band (t=10d for B; t=15d for ug; t=20d for V;
t=30d for r; t=35d for iY ; t=40d for JH).
Note (2): In rest-frame days with respect to the time of maximum.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 24-Mar-2012