2009ApJ...699L.139W

Query : 2009ApJ...699L.139W

2009ApJ...699L.139W - Astrophys. J., 699, L139-L143 (2009/July-2)

Improved distances to type Ia supernovae with two spectroscopic subclasses.

WANG X., FILIPPENKO A.V., GANESHALINGAM M., LI W., SILVERMAN J.M., WANG L., CHORNOCK R., FOLEY R.J., GATES E.L., MACOMBER B., SERDUKE F.J.D., STEELE T.N. and WONG D.S.

Abstract (from CDS):

We study the observables of 158 relatively normal Type Ia supernovae (SNe Ia) by dividing them into two groups in terms of the expansion velocity inferred from the absorption minimum of the Si II λ6355 line in their spectra near B-band maximum brightness. One group ("Normal") consists of normal SNe Ia populating a narrow strip in the Si II velocity distribution, with an average expansion velocity = 10, 600±400 km/s near B maximum; the other group ("HV") consists of objects with higher velocities, v ≳ 11, 800 km/s. Compared with the Normal group, the HV one shows a narrower distribution in both the peak luminosity and the luminosity decline rate Δm15. In particular, their B-V colors at maximum brightness are found to be on average redder by ∼ 0.1 mag, suggesting that they either are associated with dusty environments or have intrinsically red B-V colors. The HV SNe Ia are also found to prefer a lower extinction ratio RV~ 1.6 (versus ∼ 2.4 for the Normal ones). Applying such an absorption-correction dichotomy to SNe Ia of these two groups remarkably reduces the dispersion in their peak luminosity from 0.178 mag to only 0.125 mag.

Abstract Copyright: ∼

Journal keyword(s): cosmology: observations - distance scale - dust, extinction - supernovae: general

VizieR on-line data: <Available at CDS (J/ApJ/699/L139): table1.dat>

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 163

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Number of rows : 163
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 2006sr SN* 00 03 35.023 +23 11 45.67     17.4     SNIa 58 1
2 SN 2002hw SN* 00 06 49.06 +08 37 48.5     16.8     SNIa 49 1
3 SN 1998dk SN* 00 14 32.16 -00 44 10.9   14.93       SNIa 65 1
4 SN 2006ej SN* 00 38 59.77 -09 00 56.6   16.0 16.4     SNIa 78 1
5 SN 2007lc SN* 00 49 09.103 +00 35 49.05           SNIa 26 1
6 SN 2000dr SN* 01 01 44.04 -15 34 09.1     18.1     SNIa 31 1
7 SN 1998ef SN* 01 03 26.87 +32 14 12.4   15.21       SNIa 75 1
8 SN 2000dk SN* 01 07 23.52 +32 24 23.2   15.63 15.2     SNIa 109 1
9 SN 1999ej SN* 01 22 57.38 +33 27 58.0   15.65       SNIa 77 1
10 SN 2001en SN* 01 25 22.855 +34 01 30.08     17.5     SNIa 68 1
11 SN 1998dm SN* 01 26 13.97 -06 06 14.0   14.70       SNIa 71 1
12 SN 1999dk SN* 01 31 26.92 +14 17 05.7   15.06       SNIa 83 1
13 SN 1996bo SN* 01 48 22.86 +11 31 15.1           SNIa 78 1
14 SN 2006ob SN* 01 51 48.132 +00 15 48.46           SNIa 68 1
15 SN 2005hc SN* 01 56 47.976 -00 12 48.62           SNIa 99 1
16 SN 2006td SN* 01 58 15.761 +36 20 57.77     15.1     SNIa 38 1
17 SN 2004fz SN* 02 01 06.41 +31 52 44.2     15.9     SNIa 33 1
18 SN 2004dt SN* 02 02 12.770 -00 05 51.50           SNIa 150 1
19 SN 2006ef SN* 02 04 19.529 -08 43 42.49     15.6     SNIa 65 1
20 SN 2005lz SN* 02 10 49.728 +34 58 57.83     17.8     SNIa 40 1
21 SN 2002hu SN* 02 18 20.028 +37 27 58.57   16.83       SNIa 55 1
22 SN 2005A SN* 02 30 43.25 -02 56 19.8     17.1     SNIa 60 1
23 SN 2006os SN* 02 55 01.01 +16 00 34.8     17.2     SNIa 45 1
24 SN 2003hv SN* 03 04 09.32 -26 05 07.5     12.5     SNIa 134 1
25 SN 2006gj SN* 03 17 35.80 -01 41 30.2     17.8     SNIa 50 1
26 SN 2002fk SN* 03 22 05.71 -15 24 03.2     15.7     SNIa 113 1
27 SN 1992A SN* 03 36 27.41 -34 57 31.4   12.56 12.50     SNIa 409 1
28 SN 2006kf SN* 03 41 50.48 +08 09 25.0     17.4     SNIa 78 1
29 SN 2001el SN* 03 44 30.60 -44 38 23.4   12.81       SNIa 281 1
30 SN 2006lf SN* 04 38 29.49 +44 02 01.5     18.0     SNIa 65 1
31 SN 2001ep SN* 04 57 00.26 -04 45 40.2     17.1     SNIa 78 1
32 SN 2006le SN* 05 00 41.99 +62 15 19.0     18.0     SNIa 71 1
33 SN 2006hb SN* 05 02 01.28 -21 07 55.1     15.7     SNIa 54 1
34 SN 2005el SN* 05 11 48.76 +05 11 39.0     18.7     SNIa 118 1
35 SN 2003hx SN* 05 46 46.97 -16 47 00.6     14.3     SNIa 25 1
36 SN 2003kf SN* 06 04 35.42 -12 37 42.8     14.8     SNIa 76 1
37 SN 2006N SN* 06 08 31.24 +64 43 25.1     15.0     SNIa 66 1
38 SN 2004S SN* 06 45 43.50 -31 13 52.5   14.14 14.39     SNIa 79 1
39 SN 1997E SN* 06 47 38.10 +74 29 51.0   15.59       SNIa 64 1
40 SN 1998ec SN* 06 53 06.11 +50 02 22.1   16.16       SNIa 60 1
41 SN 2005na SN* 07 01 36.62 +14 07 59.7     16.1     SNIa 82 1
42 SN 2000fa SN* 07 15 29.88 +23 25 42.4   15.85       SNIa 90 1
43 SN 1997do SN* 07 26 42.50 +47 05 36.0   14.27       SNIa 74 1
44 SN 1995E SN* 07 51 56.75 +73 00 34.6   16.81 15.9     SNIa 122 1
45 SN 2000ce SN* 08 05 09.45 +66 47 15.2   17.24       SNIa 69 1
46 SN 2002he SN* 08 19 58.804 +62 49 13.73     17.5     SNIapec 58 1
47 SN 2007bd SN* 08 31 33.281 -01 11 57.98           SNIa 100 1
48 SN 2001bg SN* 08 35 18.86 +28 28 05.8     14     SNIa 46 1
49 SN 2004gs SN* 08 38 23.179 +17 37 39.79     17.1     SNIa 77 1
50 SN 1999gd SN* 08 38 24.61 +25 45 33.1   16.94       SNIa 72 1
51 SN 2005ms SN* 08 49 14.322 +36 07 46.70     17.9     SNIa 57 1
52 SN 2005am SN* 09 16 12.47 -16 18 16.0     17.5     SNIa 120 1
53 SN 2001fe SN* 09 37 57.023 +25 29 40.85     16.0     SNIa 68 1
54 SN 1995D SN* 09 40 54.753 +05 08 26.16   13.42 13.22     SNIa 158 1
55 SN 2003W SN* 09 46 49.48 +16 02 37.6     17.3     SNIa 76 1
56 SN 2003cg SN* 10 14 15.97 +03 28 02.5   15.94       SNIa 146 1
57 SN 2002bf SN* 10 15 42.316 +55 40 07.35   16.22       SNIa 69 1
58 SN 2002bo SN* 10 18 06.51 +21 49 41.7   13.95       SNIa 325 1
59 SN 2005ki SN* 10 40 28.220 +09 12 08.21           SNIa 100 1
60 SN 1998bu SN* 10 46 46.01 +11 50 07.5   12.11       SNIa 328 1
61 SN 1994ae SN* 10 47 01.94 +17 16 30.8   13.20 12.99     SNIa 183 1
62 SN 1999bh SN* 10 54 46.97 +61 17 20.0     16.8     SNIa 28 1
63 SN 2004at SN* 10 58 45.18 +59 29 12.0     17.7     SNIa 41 2
64 SN 2007bc SN* 11 19 14.570 +20 48 32.51           SNIa 78 1
65 SN 1989B SN* 11 20 13.93 +13 00 18.9   12.25       SNIa 372 1
66 SN 2006ax SN* 11 24 03.46 -12 17 29.2     17.1     SNIa 109 1
67 SN 2007bm SN* 11 25 02.30 -09 47 53.8     16.0     SNIa 62 1
68 SN 2004as SN* 11 25 39.185 +22 49 49.04     17.3     SNIa 56 1
69 SN 1989A SN* 11 27 59.02 +29 30 21.4   14.10       SNIa 54 1
70 SN 2001ba SN* 11 38 01.76 -32 19 51.0   16.44       SNIa 74 1
71 SN 2004bd SN* 11 39 42.18 +31 54 31.8     14.3     SNIa 24 1
72 SN 2007ci SN* 11 45 45.85 +19 46 13.9     17.5     SNIa 61 1
73 SN 2001E SN* 11 49 05.00 -09 44 10.9     17.6     SNIa 34 1
74 SN 2003cq SN* 11 56 14.17 +60 31 19.1     17.0     SNIa 52 1
75 SN 1998aq SN* 11 56 25.87 +55 07 43.2   12.31 14.9     SNIa 197 1
76 SN 2007gi SN* 12 01 23.42 +61 53 33.8     16.3     SNIa 53 1
77 SN 2007sr SN* 12 01 52.80 -18 58 21.7     12.79     SNIa 100 1
78 SN 2008bf SN* 12 04 02.878 +20 14 42.29           SNIa 74 2
79 SN 2006az SN* 12 12 14.68 +56 10 45.8     17.1     SNIa 38 1
80 SN 2006cp SN* 12 19 14.89 +22 25 38.2     18.2     SNIa 74 1
81 SN 2006X SN* 12 22 53.93 +15 48 32.0     15.3     SNIa 347 1
82 SN 1991bg SN* 12 25 03.70 +12 52 15.6   14.75 14.3     SNIapec 612 1
83 SN 1984A SN* 12 26 55.73 +15 03 17.1   12.40 12.20     SNIa 140 1
84 SN 1999cl SN* 12 31 56.01 +14 25 35.3   14.92       SNIa 125 1
85 SN 1994D SN* 12 34 02.395 +07 42 05.70   11.75 12.03     SNIa 559 1
86 SN 1991T SN* 12 34 10.20 +02 39 56.4   11.70 11.51     SNIapec 795 1
87 SN 1981B SN* 12 34 29.57 +02 11 59.3   11.74       SNIa 416 1
88 SN 2006ac SN* 12 41 44.90 +35 04 07.4     16.0     SNIa 72 1
89 SN 1990N SN* 12 42 56.68 +13 15 23.4   12.69 12.62     SNIa 406 1
90 SN 2006S SN* 12 45 39.10 +35 05 12.4     17.0     SNIa 72 1
91 SN 1997bp SN* 12 46 53.75 -11 38 33.2   14.15 13.79     SNIapec 96 1
92 SN 2005bo SN* 12 49 41.03 -11 05 47.4     15.3     SNIa 62 1
93 SN 1983G SN* 12 52 20.90 -01 12 12.0   12.97       SNIa 110 1
94 SN 2006D SN* 12 52 33.87 -09 46 30.7           SNIa 107 1
95 SN 2007F SN* 13 03 15.059 +50 37 07.53     17.3     SNIa 71 1
96 SN 1996ai SN* 13 10 58.13 +37 03 35.4   16.94 15.0     SNIa 61 1
97 SN 2002dj SN* 13 13 00.34 -19 31 08.7     17.0     SNIa 134 1
98 SN 1996X SN* 13 18 01.13 -26 50 45.3   12.99 13.00     SNIa 198 1
99 SN 2001cj SN* 13 21 44.85 +31 14 48.6     15.9     SNIa 31 1
100 SN 2006br SN* 13 30 01.80 +13 24 56.8     17.8     SNIa 50 1
101 SN 2007ca SN* 13 31 05.81 -15 06 06.6     16.7     SNIa 74 1
102 SN 2000ca SN* 13 35 22.98 -34 09 37.0   15.90       SNIa 57 2
103 SN 2004bk SN* 13 37 28.72 +04 06 11.3     16.0     SNIa 36 1
104 SN 2002gi SN* 13 57 12.3 +04 33 17         24.1 SNIa 7 1
105 SN 1999cp SN* 14 06 31.30 -05 26 49.0     13.91     SNIa 84 1
106 SN 2002cr SN* 14 06 37.59 -05 26 21.9     16.5     SNIa 83 1
107 SN 2007af SN* 14 22 21.03 -00 23 37.6     15.4     SNIa 185 1
108 SN 2001ay SN* 14 26 17.00 +26 14 55.8     16.9     SNIap 82 1
109 SN 2003du SN* 14 34 35.80 +59 20 03.8   13.46       SNIa 374 1
110 SN 2005bc SN* 14 37 15.050 +38 27 23.11     16.6     SNIa 41 1
111 SN 2001ck SN* 14 37 50.08 +30 29 02.2     17.2     SNIa 30 1
112 SN 2007O SN* 14 56 05.160 +45 24 17.39     16.8     SNIa 47 1
113 SN 2004bw SN* 15 03 46.75 -03 18 16.4     17.8     SNIa 36 1
114 SN 1999dg SN* 15 11 28.41 +13 29 05.7     16.7     SNIa 30 2
115 SN 2005cf SN* 15 21 33.12 -07 26 57.1   13.54       SNIa 301 1
116 SN 2000cf SN* 15 52 56.19 +65 56 12.7   17.15       SNIa 57 1
117 SN 2006bt SN* 15 56 33.81 +20 03 07.2     17.5     SNIap 114 1
118 SN 1999cc SN* 16 02 42.03 +37 21 34.4   16.78       SNIa 83 1
119 SN 2000cp SN* 16 05 27.62 +17 49 48.8     18.0     SNIa 33 1
120 SN 2006cc SN* 16 09 56.470 +43 07 35.90     18.3     SNIa 36 1
121 SN 2002de SN* 16 16 30.333 +35 42 30.09     16.0     SNIa 57 1
122 SN 2002aw SN* 16 37 29.06 +40 52 50.3     16.6     SNIa 41 1
123 SN 2001cp SN* 17 11 02.58 +05 50 26.8     16.5     SNIa 45 1
124 SN 2002er SN* 17 11 29.88 +07 59 44.8   14.25       SNIa 144 1
125 SN 2000cc SN? 17 23 14.34 +23 40 18.7           ~ 6 1
126 SN 2000cn SN* 17 57 40.42 +27 49 58.1   16.82       SNIa 83 1
127 SN 2001bf SN* 18 01 33.99 +26 15 02.3     16.5     SNIa 48 1
128 SN 2005de SN* 18 02 23.359 +26 03 07.70     18.1     SNIa 48 1
129 SN 2002cu SN* 18 10 50.40 +31 06 32.3     17.6     SNIa 26 1
130 SN 2000dm SN* 18 18 58.97 +16 14 53.4     16.1     SNIa 37 1
131 SN 2007co SN* 18 23 03.60 +29 53 49.6 17.1 17.1 17.0     SNIa 72 1
132 SN 2001br SN* 18 30 25.55 +34 06 13.0     16.6     SNIa 38 1
133 SN 2006bq SN* 18 39 58.68 +39 58 50.8     15.8     SNIa 48 1
134 SN 2002cs SN* 18 46 59.96 +45 42 19.7     16.3     SNIa 43 1
135 SN 2001bt SN* 19 13 46.75 -59 17 22.8   15.51       SNIa 49 1
136 SN 2002cd SN* 20 23 34.42 +58 20 47.4     17.5     SNIa 42 1
137 SN 2004eo SN* 20 32 54.19 +09 55 42.7   15.07 17.8     SNIa 225 1
138 SN 2003gt SN* 20 32 59.12 +09 52 19.3     16.4     SNIa 33 1
139 SN 2002ha SN* 20 47 18.596 +00 18 45.36     17.3     SNIa 89 1
140 SN 2002el SN* 20 56 30.09 -18 33 34.3     17.6     SNIa 40 1
141 SN 2001fh SN* 21 20 42.50 +44 23 53.2     17.2     SNIapec 33 1
142 SN 2001dl SN* 21 21 01.73 +09 10 50.4     17.1     SNIa 31 1
143 SN 2004ey SN* 21 49 07.81 +00 26 39.2     16.0     SNIa 78 1
144 SN 1999ee SN* 22 16 09.40 -36 50 31.5   14.85       SNIa 201 1
145 SN 2002eb SN* 22 19 05.24 +24 35 39.8     18.5     SNIa 40 1
146 SN 2002jg SN* 22 19 28.80 +29 23 04.5     17.0     SNIa 37 1
147 SN 2006gr SN* 22 32 22.67 +30 49 43.3     18.8     SNIa 69 1
148 SN 2005kc SN* 22 34 07.34 +05 34 06.3     18.2     SNIa 89 1
149 SN 1998eg SN* 22 39 30.29 +08 36 20.6   16.11       SNIa 68 1
150 SN 2004ef SN* 22 42 10.020 +19 59 39.88           SNIa 107 1
151 SN 1997dt SN* 23 00 02.930 +15 58 50.92           SNIa 58 1
152 SN 2000dn SN* 23 05 05.86 -03 12 01.0     17.9     SNIa 49 1
153 SN 2006en SN* 23 10 05.06 +30 13 24.0     15.8     SNIa 45 1
154 SN 1998dh SN* 23 14 40.31 +04 32 14.1   13.85       SNIa 92 1
155 SN 2002dp SN* 23 28 30.102 +22 25 38.06     15.1     SNIa 61 1
156 SN 2007le SN* 23 38 48.45 -06 31 21.7     15.2     SNIa 139 1
157 SN 2006dm SN* 23 41 47.839 -03 40 08.40     17.3     SNIa 43 1
158 SN 2000cw SN* 23 47 25.10 +28 23 15.8     17.4     SNIa 33 1
159 SN 2002ef SN* 23 51 29.54 -13 22 46.4     16.5     SNIa 30 1
160 SN 2001da SN* 23 53 32.78 +08 07 02.6     16.5     SNIa 58 1
161 SN 2007qe SN* 23 54 12.98 +27 24 33.0     17.4     SNIa 52 1
162 SN 2005iq SN* 23 58 32.50 -18 42 33.0     17.2     SNIa 80 1
163 SN 2003he SN* 23 58 57.05 -02 14 53.1     18.7     SNIa 30 1

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