2007ApJ...666.1024B

Query : 2007ApJ...666.1024B

2007ApJ...666.1024B - Astrophys. J., 666, 1024-1047 (2007/September-2)

Determining the type, redshift, and age of a supernova spectrum.

BLONDIN S. and TONRY J.L.

Abstract (from CDS):

We present an algorithm to identify the type of an SN spectrum and to determine its redshift and age. This algorithm, based on the correlation techniques of Tonry & Davis, is implemented in the Supernova Identification (SNID) code. It is used by members of ongoing high-redshift SN searches to distinguish between Type Ia and Ib/c SNe and to identify ``peculiar'' SNe Ia. We develop a diagnostic to quantify the quality of a correlation between the input and template spectra, which enables a formal evaluation of the associated redshift error. Furthermore, by comparing the correlation redshifts obtained using SNID with those determined from narrow lines in the SN host galaxy spectrum, we show that accurate redshifts (with a typical error σz≲0.01) can be determined for SNe Ia without a spectrum of the host galaxy. Last, the age of an input spectrum is determined with a typical accuracy σt≲3 days, shown here by using high-redshift SNe Ia with well-sampled light curves. The success of the correlation technique confirms the similarity of some SNe Ia at low and high redshifts. The SNID code, which will be made available to the community, can also be used for comparative studies of SN spectra, as well as comparisons between data and models.

Abstract Copyright: ∼

Journal keyword(s): Methods: Data Analysis - Methods: Statistical - Stars: Supernovae: General

Simbad objects: 95

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Number of rows : 95
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 SN 1998dk SN* 00 14 32.16 -00 44 10.9   14.93       SNIa 65 1
2 SN 2005hk SN* 00 27 50.89 -01 11 53.3   15.92       SNIax 240 1
3 SN 1998de SN* 00 48 06.88 +27 37 28.5   17.56       SNIapec 92 1
4 SN 2000dk SN* 01 07 23.52 +32 24 23.2   15.63 15.2     SNIa 109 1
5 SN 2003lj SN* 01 12 10.0340 +00 19 51.267       22.1   SNIa 16 1
6 SN 1999ej SN* 01 22 57.38 +33 27 58.0   15.65       SNIa 77 1
7 SN 2000cx SN* 01 24 46.150 +09 30 30.89           SNIap 227 1
8 SN 1998dm SN* 01 26 13.97 -06 06 14.0   14.70       SNIa 71 1
9 SN 2002ap SN* 01 36 23.85 +15 45 13.2   13.11 14.54     SNIc-BL 587 1
10 SN 1998es SN* 01 37 17.60 +05 52 50.6   13.99       SNIapec 128 1
11 SN 2005hg SN* 01 55 41.87 +46 47 47.4     18.6     SNIb 42 1
12 SN 1998dt SN* 02 28 35.7 -10 33 00           SNIb 48 1
13 SN 1999gp SN* 02 31 39.15 +39 22 52.3   16.04       SNIa 98 1
14 SN 1999dq SN* 02 33 59.68 +20 58 30.4   14.68       SNIapec 126 1
15 SN 2005mz SN* 03 19 49.88 +41 30 18.6     18.2     SNIa 39 1
16 SN 2006aj SN* 03 21 39.670 +16 52 02.27 17.96 19.11 17.40     SNIc-BL 1007 1
17 SN 1992A SN* 03 36 27.41 -34 57 31.4   12.56 12.50     SNIa 409 1
18 SN 1999em SN* 04 41 27.04 -02 51 45.2   13.79 13.7     SNIIP 727 1
19 SN 1995bd SN* 04 45 21.24 +11 04 02.5   17.29       SNIapec 73 1
20 SN 1987A SN* 05 35 27.98840 -69 16 11.1134           SNIIpec 5203 2
21 SN 1993ac SN* 05 46 23.58 +63 22 07.1   18.36 17.71     SNIa 63 1
22 SN 2000H SN* 06 51 07.67 +12 55 18.5   17.9       SNIIb 57 1
23 SN 1998ec SN* 06 53 06.11 +50 02 22.1   16.16       SNIa 60 1
24 SN 2000B SN* 07 05 40.73 +50 35 10.5   15.94       SNIa 42 1
25 SN 2000fa SN* 07 15 29.88 +23 25 42.4   15.85       SNIa 90 1
26 SN 1997do SN* 07 26 42.50 +47 05 36.0   14.27       SNIa 74 1
27 SN 1995E SN* 07 51 56.75 +73 00 34.6   16.81 15.9     SNIa 122 1
28 SN 1997ef SN* 07 57 02.87 +49 33 41.3     16.5     SNIc-BL 281 1
29 SN 1999aa SN* 08 27 42.03 +21 29 14.8           SNIap 274 1
30 SN 2006bb SN* 08 33 31.09 +41 31 04.1     17.4     SNIa 31 1
31 SN 1999gd SN* 08 38 24.61 +25 45 33.1   16.94       SNIa 72 1
32 SN 1999X SN* 08 54 32.23 +36 30 41.1   16.45       SNIa 42 1
33 SN 2005mf SN* 09 08 42.33 +44 48 51.4     17.4     SNIc 31 1
34 SN 1999by SN* 09 21 52.07 +51 00 06.6   13.66       SNIap 307 1
35 SN 1995D SN* 09 40 54.753 +05 08 26.16   13.42 13.22     SNIa 158 1
36 SN 1999gh SN* 09 44 19.75 -21 16 25.0   14.46       SNIa 50 1
37 SN 1995al SN* 09 50 55.97 +33 33 09.4   13.36 13.22     SNIa 115 1
38 SN 2006T SN* 09 54 30.21 -25 42 29.3     17.2     SNIIb 67 1
39 SN 1993J SN* 09 55 24.77476 +69 01 13.7026   10.8 12.0     SNIIb 1507 1
40 SN 2002bo SN* 10 18 06.51 +21 49 41.7   13.95       SNIa 325 1
41 SN 1999gi SN* 10 18 16.66 +41 26 28.2   14.8       SNIIP 248 1
42 SN 2005bf SN* 10 23 56.99 -03 11 29.3     18.0     SNIb 225 1
43 SN 1998bu SN* 10 46 46.01 +11 50 07.5   12.11       SNIa 328 1
44 SN 1994ae SN* 10 47 01.94 +17 16 30.8   13.20 12.99     SNIa 183 1
45 SN 1989B SN* 11 20 13.93 +13 00 18.9   12.25       SNIa 372 1
46 SN 1998S SN* 11 46 06.1 +47 28 55     12.2     SNIIn 517 1
47 SN 1998aq SN* 11 56 25.87 +55 07 43.2   12.31 14.9     SNIa 197 1
48 SN 2001V SN* 11 57 24.910 +25 12 09.51   14.62       SNIa 115 1
49 SN 2004aw SN* 11 57 50.24 +25 15 55.1   18.06       SNIc 209 1
50 SN 2004gt SN* 12 01 50.37 -18 52 12.7   19.42 14.9     SNIc 86 1
51 SN 1991bg SN* 12 25 03.70 +12 52 15.6   14.75 14.3     SNIapec 612 1
52 SN 1994M SN* 12 31 08.61 +00 36 19.6   16.31 16.24     SNIa 102 1
53 SN 1994S SN* 12 31 21.85 +29 08 04.0   14.80 14.77     SNIa 120 1
54 SN 1999cl SN* 12 31 56.01 +14 25 35.3   14.92       SNIa 125 1
55 SN 1994D SN* 12 34 02.395 +07 42 05.70   11.75 12.03     SNIa 559 1
56 SN 1991T SN* 12 34 10.20 +02 39 56.4   11.70 11.51     SNIapec 795 1
57 SN 1981B SN* 12 34 29.57 +02 11 59.3   11.74       SNIa 416 1
58 SN 1990B SN* 12 36 33.86 +11 14 29.9     15.75     SNIc 131 1
59 SN 1990N SN* 12 42 56.68 +13 15 23.4   12.69 12.62     SNIa 406 1
60 SN 1990I SN* 12 44 50.26 -40 43 36.5   16.7 16.7     SNIb 62 1
61 SN 1998ab SN* 12 48 47.24 +41 55 28.3   15.94       SNIapec 76 1
62 SN 2002cx SN* 13 13 49.72 +06 57 31.9   17.68       SNIapec 240 1
63 SN 1996X SN* 13 18 01.13 -26 50 45.3   12.99 13.00     SNIa 198 1
64 SN 1997br SN* 13 20 42.40 -22 02 12.3   14.06       SNIapec 113 1
65 SN 1994T SN* 13 21 30.73 -02 08 56.5   17.31 17.15     SNIa 57 1
66 SN 1986G SN* 13 25 36.46 -43 01 53.6   12.45 11.44     SNIapec 422 1
67 SN 2005cs SN* 13 29 53.37 +47 10 28.2   14.5       SNIIP 450 1
68 SN 1994I SN* 13 29 54.072 +47 11 30.50     12.9     SNIc 645 1
69 SN 1996C SN* 13 50 48.60 +49 19 07.1   16.53 16.48     SNIa 84 1
70 SN 1992H SN* 13 56 22.26 +47 14 27.4     15.0     SNII 108 1
71 SN 1997cn SN* 14 09 57.76 +17 32 32.3   17.2 16.7     SNIapec 91 1
72 SN 2003fg SN* 14 16 18.924 +52 14 53.68           SNIa 141 1
73 SN 2003du SN* 14 34 35.80 +59 20 03.8   13.46       SNIa 374 1
74 SN 2006bk SN* 15 04 33.610 +35 57 51.08           SNIa 22 1
75 SN 2000cf SN* 15 52 56.19 +65 56 12.7   17.15       SNIa 57 1
76 SN 1991M SN* 15 58 34.82 +17 27 28.7     14.55     SNIa 66 1
77 SN 1999cc SN* 16 02 42.03 +37 21 34.4   16.78       SNIa 83 1
78 SN 1999ac SN* 16 07 15.01 +07 58 20.4   14.34       SNIap 144 1
79 SN 1994Q SN* 16 49 51.13 +40 25 55.8   16.35 16.31     SNIa 68 1
80 SN 2002er SN* 17 11 29.88 +07 59 44.8   14.25       SNIa 144 1
81 SN 1990O SN* 17 15 35.92 +16 19 25.8   16.59 16.22     SNIa 83 1
82 SN 2004ao SN* 17 28 09.35 +07 24 55.5     14.9     SNIb 49 1
83 SN 1998bp SN* 17 54 50.74 +18 19 50.5   15.73       SNIa 77 1
84 SN 2000cn SN* 17 57 40.42 +27 49 58.1   16.82       SNIa 83 1
85 SN 1998V SN* 18 22 37.40 +15 42 08.4   15.07       SNIa 72 1
86 SN 1998bw SN* 19 35 03.17 -52 50 46.1   14.09       SNIc 1928 2
87 SN 2004et SN* 20 35 25.33 +60 07 17.7   12.88       SNIIP 547 1
88 SN 2000E SN* 20 37 13.77 +66 05 50.2   12.85       SNIa 97 1
89 SN 1999ex SN* 22 16 07.27 -36 50 53.7   17.35       SNIb 149 2
90 SN 1999ee SN* 22 16 09.40 -36 50 31.5   14.85       SNIa 201 1
91 SN 1998eg SN* 22 39 30.29 +08 36 20.6   16.11       SNIa 68 1
92 SN 1995ac SN* 22 45 34.14 -08 45 04.7   17.23 17.10     SNIapec 87 2
93 SN 1997dt SN* 23 00 02.930 +15 58 50.92           SNIa 58 1
94 SN 1998dh SN* 23 14 40.31 +04 32 14.1   13.85       SNIa 92 1
95 SN 1992ar SN* 23 17 28.40 -44 38 53.8   20.70       SNIc 30 1

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