2019ApJ...874...32R

Query : 2019ApJ...874...32R

2019ApJ...874...32R - Astrophys. J., 874, 32-32 (2019/March-3)

Think global, act local: the influence of environment age and host mass on Type Ia supernova light curves.

ROSE B.M., GARNAVICH P.M. and BERG M.A.

Abstract (from CDS):

The reliability of Type Ia Supernovae (SNe Ia) may be limited by the imprint of their galactic origins. To investigate the connection between supernovae and their host characteristics, we developed an improved method to estimate the stellar population age of the host as well as the local environment around the site of the supernova. We use a Bayesian method to estimate the star formation history and mass weighted age of a supernova's environment by matching observed spectral energy distributions to a synthesized stellar population. Applying this age estimator to both the photometrically and spectroscopically classified Sloan Digital Sky Survey II supernovae (N = 103), we find a 0.114 ± 0.039 mag "step" in the average Hubble residual at a stellar age of ∼8 Gyr; it is nearly twice the size of the currently popular mass step. We then apply a principal component analysis on the SALT2 parameters, host stellar mass, and local environment age. We find that a new parameter, PC1, consisting of a linear combination of stretch, host stellar mass, and local age, shows a very significant (4.7σ) correlation with Hubble residuals. There is a much broader range of PC1 values found in the Hubble flow sample when compared with the Cepheid calibration galaxies. These samples have mildly statistically different average PC1 values, at ∼2.5σ, resulting in at most a 1.3% reduction in the evaluation of H0. Despite accounting for the highly significant trend in SN Ia Hubble residuals, there remains a 9% discrepancy between the most recent precision estimates of H0 using SN Ia and the CMB.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): distance scale - galaxies: distances and redshifts - galaxies: general - galaxies: photometry - galaxies: stellar content - supernovae: general

VizieR on-line data: <Available at CDS (J/ApJ/874/32): table1.dat table2.dat table3.dat table7.dat>

Simbad objects: 275

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Number of rows : 275
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 SDSS J000502.85+010847.0 G 00 05 02.854 +01 08 47.05           ~ 3 0
2 2MASS J00050286+0108466 SN* 00 05 02.863 +01 08 46.66           SNIa 11 0
3 SN 2006jh SN* 00 06 45.742 -00 02 12.29           SNIa 19 1
4 SDSS-II SN 13896 SN* 00 10 51.087 -00 04 11.42           ~ 7 0
5 SDSS J001051.11-000411.8 G 00 10 51.112 -00 04 11.85           ~ 2 0
6 SDSS-II SN 8555 SN* 00 11 39.744 -00 24 54.12           SNIa 11 0
7 SDSS J001139.74-002454.1 G 00 11 39.746 -00 24 54.16           ~ 5 0
8 SN 2007ju SN* 00 11 50.465 -00 20 21.67           SNIa 20 1
9 SN 2007kx SN* 00 13 42.874 +00 39 08.38           SNIa 17 1
10 SN 2005hy SN* 00 14 23.602 +00 19 59.09   21.7       SNIa 27 1
11 SDSS J001423.63+001959.4 G 00 14 23.638 +00 19 59.43           ~ 5 0
12 SN 2006fz SN* 00 16 41.35 -00 25 28.3           SNIa 23 1
13 Anon J001641-0025 G 00 16 41.8463727648 -00 25 30.550871064           ~ 4 0
14 SN 2006er SN* 00 21 37.8 -01 00 38           SNIa 27 1
15 SN 2005is SN* 00 21 44.9 -00 19 29           SNIa 18 1
16 2MASS J00214490-0019300 G 00 21 44.9180611445 -00 19 29.949508383         17.624 ~ 5 0
17 SDSS J002243.95-002845.7 G 00 22 43.959 -00 28 45.80           ~ 7 0
18 SN 2007px SN* 00 22 43.96 -00 28 46.0           SNIa 19 1
19 SN 2007ly SN* 00 22 53.3 +00 46 33           SNIa 9 1
20 SN 2006pe SN* 00 23 09.1 -00 03 12           SNIa 19 1
21 2MASS J00230921-0003128 GiC 00 23 09.1952532370 -00 03 12.846042836         17.698 ~ 5 0
22 SN 2005kp SN* 00 30 53.153 -00 43 07.77   21.8       SNIa 31 1
23 SDSS J003053.26-004307.0 G 00 30 53.261 -00 43 07.08           ~ 6 1
24 SN 2006of SN* 00 32 25.838 -01 03 14.04           SNIa 21 1
25 SDSS J003225.84-010314.0 G 00 32 25.842 -01 03 14.05           ~ 3 0
26 SN 2007ma SN* 00 44 53.8 -00 59 48           SNIa 22 1
27 2MASS J00445377-0059488 G 00 44 53.8098162648 -00 59 48.769750716           ~ 6 0
28 SN 2007lg SN* 00 46 03.9 -00 00 38           SNIa 16 1
29 2MASS J00460392-0000388 G 00 46 03.9350210663 -00 00 38.419001600         17.415 ~ 4 0
30 SN 2005hz SN* 00 46 32.2 +00 50 17           SNIa 28 1
31 2MASS J00463226+0050174 G 00 46 32.24688 +00 50 17.3868         17.611 ~ 5 0
32 SN 2006pb SN* 00 46 43.5 -01 01 57           SNIa 22 1
33 SN 2007lc SN* 00 49 09.1 +00 35 47           SNIa 22 1
34 2MASS J00490912+0035478 GiC 00 49 09.1246263846 +00 35 47.744851087           ~ 7 0
35 SN 2007mb SN* 00 50 11.1 +00 40 32           SNIa 18 1
36 2MASS J00501118+0040327 G 00 50 11.1828946080 +00 40 32.520378288         17.419 ~ 3 0
37 SDSS-II SN 19772 SN* 00 50 39.9 +01 02 31           ~ 6 0
38 2MASS J00503990-0102312 G 00 50 39.9122806646 -01 02 31.179354692         17.682 ~ 2 0
39 SN 2006nc SN* 00 55 22.512 -00 23 21.16           SNIa 27 1
40 SDSS J005522.52-002321.1 G 00 55 22.524 -00 23 21.18           ~ 5 0
41 SDSS-II SN 6530 SN* 00 57 18.984 +00 01 16.88           SNIa 9 0
42 SDSS J005718.99+000116.8 G 00 57 18.993 +00 01 16.87           ~ 2 0
43 SN 2005ho SN* 00 59 24.1 +00 00 09           SNIa 30 1
44 LEDA 1154577 EmG 00 59 24.1113564985 +00 00 09.501632631           ~ 17 1
45 SN 2005eg SN* 01 02 08.49 -00 52 44.5           SNIa 29 1
46 SDSS J010208.65-005246.7 G 01 02 08.6480738520 -00 52 46.833417228           ~ 6 0
47 SN 2007mm SN* 01 05 46.67 -00 45 31.8           SNIa 22 1
48 SN 2006ok SN* 01 07 28.3 -00 16 09           SNIa 19 1
49 SDSS J010728.34-001609.6 G 01 07 28.3435583658 -00 16 09.602804077           ~ 3 0
50 SN 2005ga SN* 01 07 43.76 -01 02 22.2   21.3       SNIa 28 1
51 SDSS J010749.93+004942.9 G 01 07 49.930 +00 49 42.92           ~ 5 0
52 SN 2006kd SN* 01 07 49.944 +00 49 42.89           SNIa 25 1
53 SN 2005kt SN* 01 10 58.00 +00 16 34.0           SNIa 28 1
54 2MASX J01105805+0016343 GiC 01 10 58.0620984267 +00 16 34.027036748         15.913 ~ 15 1
55 2MASX J01135716+0022171 GiC 01 13 57.1896804744 +00 22 17.186487168   17.07       ~ 26 0
56 SN 2006hx SN* 01 13 57.31 +00 22 18.0           SNIa 43 1
57 SN 2005gb SN* 01 16 12.600 +00 47 30.90   19.4       SNIa 39 1
58 2MASX J01161269+0047265 GiC 01 16 12.7076206344 +00 47 26.034695016           ~ 11 1
59 SN 2005ir SN* 01 16 43.752 +00 47 40.36           SNIa 62 1
60 LEDA 3116670 EmG 01 16 43.871 +00 47 37.09           ~ 21 0
61 SN 2005gc SN* 01 21 37.584 -00 58 38.01   21.2       SNIa 28 1
62 SDSS J012137.58-005837.7 G 01 21 37.585 -00 58 37.75           ~ 5 0
63 SN 2005hj SN* 01 26 48.40 -01 14 17.2       17.40   SNIa 91 1
64 LEDA 4131950 G 01 26 48.459 -01 14 17.25           ~ 17 1
65 SN 2007ol SN* 01 37 23.7 -00 18 42           SNIa 31 1
66 2MASX J01372378-0018422 GiC 01 37 23.7806892358 -00 18 42.165865111         16.140 ~ 11 0
67 SN 2007me SN* 01 41 03.840 -00 26 53.78           SNIa/c 17 1
68 SDSS J014103.84-002653.8 G 01 41 03.847 -00 26 53.84           ~ 3 0
69 SN 2007or SN* 01 42 38.3 +01 01 49           SNIa 16 1
70 2MASS J01423833+0101495 G 01 42 38.3361270218 +01 01 49.316052506           ~ 3 0
71 SN 2007ro SN* 01 44 28.9 +00 13 47           SNIa 15 1
72 2MASS J01442897+0013469 G 01 44 28.9915091187 +00 13 47.348900212         17.240 ~ 4 0
73 SN 2006nn SN* 01 45 41.112 -01 03 16.45           SNIa 20 1
74 SN 2006fw SN* 01 47 10.3 -00 08 48           SNIa 35 1
75 2MASS J01471032-0008488 G 01 47 10.33224 -00 08 48.7140           ~ 5 0
76 SDSS J014751.04+003825.5 G 01 47 51.047 +00 38 25.65           ~ 4 0
77 SN 2005gd SN* 01 47 51.048 +00 38 25.80           SNIa 23 1
78 SN 2006ls SN* 01 48 40.680 -00 34 32.70           SNIpec 22 1
79 SN 2006hr SN* 01 50 15.528 -00 53 12.09           SNIa: 24 1
80 LEDA 1132209 GiC 01 50 15.537 -00 53 12.12           ~ 9 0
81 SN 2007qa SN* 01 52 34.1 +01 14 38           SNIa 17 1
82 2MASS J01523413+0114390 G 01 52 34.1646113485 +01 14 38.866851695           ~ 6 0
83 SN 2005hc SN* 01 56 47.976 -00 12 48.62           SNIa 88 1
84 MCG+00-06-003 G 01 56 48.5045064168 -00 12 45.198891396   16       ~ 33 0
85 SN 2007si SN* 01 59 51.2 +01 12 59           SNIa 13 1
86 2MASS J01595128+0112598 G 01 59 51.2846049363 +01 12 59.863049154         16.519 ~ 4 0
87 SN 2006nl SN* 02 01 44.71 -01 01 56.7           SNIa 16 1
88 SN 2007jw SN* 02 02 32.74 -01 05 21.0           SNIa 23 1
89 2MASX J02050352+0010309 EmG 02 05 03.547 +00 10 30.48           ~ 10 0
90 SN 2007mn SN* 02 05 03.96 +00 10 28.4           SNIa 18 1
91 2MASS J02055976-0051211 SN* 02 05 59.760 -00 51 21.10           SNIa 12 0
92 SDSS J020559.80-005120.9 G 02 05 59.802 -00 51 20.95           ~ 5 0
93 SN 2007hx SN* 02 06 27.288 -00 53 57.57           SNIa 37 1
94 LEDA 1131943 G 02 06 27.944 -00 53 52.22           ~ 13 0
95 SN 2006ia SN* 02 07 19.1 +01 15 07           SNIa 23 1
96 2MASS J02071918+0115076 G 02 07 19.1798525912 +01 15 07.325259409           ~ 4 0
97 SDSS J020738.36-001926.5 G 02 07 38.360 -00 19 26.55           ~ 7 0
98 SN 2007pt SN* 02 07 38.372 -00 19 26.27           SNIa 22 1
99 SN 2006kw SN* 02 14 57.912 +00 36 09.80           SNIa 24 1
100 SDSS J021457.91+003609.7 G 02 14 57.916 +00 36 09.78           ~ 8 0
101 SN 2007ou SN* 02 23 42.618 -00 49 35.68           SNIa 8 1
102 SN 2007jt SN* 02 28 32.760 -01 02 34.12           SNIa 26 1
103 SN 2005je SN* 02 35 26.5 +01 04 28           SNIa: 20 1
104 2MASX J02352657+0104287 LIN 02 35 26.5807843961 +01 04 28.297834476         16.177 ~ 9 1
105 NGC 1015 Sy2 02 38 11.5517163624 -01 19 07.598590248   12.8   12.4 12.5 ~ 114 0
106 SN 2009ig SN* 02 38 11.62 -01 18 45.3           SNIa-norm 149 1
107 SN 2005ft SN* 02 42 04.98 -00 32 27.0   21.2       SNIa 26 1
108 SDSS J024205.00-003227.7 G 02 42 05.000 -00 32 27.73           ~ 6 0
109 SDSS-II SN 17695 SN* 02 47 57.55 +00 35 21.2           ~ 5 0
110 SDSS J024757.57+003521.3 G 02 47 57.575 +00 35 21.38           ~ 2 0
111 SDSS J025032.13+004826.3 G 02 50 32.134 +00 48 26.39           ~ 4 0
112 SN 2005fu SN* 02 50 32.136 +00 48 26.44   21.0       SNIa 25 1
113 SDSS J025227.18+001506.2 G 02 52 27.183 +00 15 06.27           ~ 5 0
114 SN 2007nj SN* 02 52 27.19 +00 15 06.2           SNIa 22 1
115 LEDA 1125812 G 02 52 29.117 -01 08 21.99           ~ 6 0
116 SN 2007qr SN* 02 52 29.23 -01 08 22.2           SNIa 10 1
117 SN 2007jk SN* 02 55 05.40 -00 08 51.7           SNIa 25 1
118 SN 2005fb SN* 03 01 17.544 -00 38 38.63   21.2       SNIa 23 1
119 SDSS-II SN 17206 SN* 03 03 56.474 +00 43 41.74           SNIa 10 0
120 SDSS J030356.61+004341.4 G 03 03 56.618 +00 43 41.44           ~ 3 0
121 SDSS J030421.25-010347.1 G 03 04 21.257 -01 03 47.17           ~ 9 0
122 SN 2005ij SN* 03 04 21.264 -01 03 46.87   20.6       SNIa 32 1
123 SN 2005ez SN* 03 07 11.0 +01 07 11           SNIa 30 1
124 2MASS J03071103+0107121 G 03 07 11.0211555120 +01 07 11.985970008         17.572 ~ 6 0
125 SN 2006hw SN* 03 13 03.302 -00 28 18.23           SNIa 15 1
126 SDSS J031303.30-002818.3 G 03 13 03.304 -00 28 18.35           ~ 6 0
127 SN 2006ib SN* 03 16 11.8 -00 36 03           SNIa 21 1
128 2MASS J03161182-0036031 G 03 16 11.8436911406 -00 36 03.578211910           ~ 5 0
129 SN 2006lb SN* 03 19 28.176 -00 19 04.77           SNIa 24 1
130 Anon J031928-0019 G 03 19 28.186 -00 19 04.84           ~ 8 0
131 SN 2002fk SN* 03 22 05.71 -15 24 03.2     15.7     SNIa 98 1
132 NGC 1309 GiG 03 22 06.5548977432 -15 23 59.791692912   12.08   12.5 11.7 ~ 222 0
133 SN 2005if SN* 03 30 12.888 -00 58 28.17   19.1       SNIa 36 1
134 LEDA 1130011 Sy1 03 30 12.889 -00 58 28.10     19.71     ~ 15 1
135 SN 2005fw SN* 03 30 48.960 -01 14 15.40   20.9       SNIa 27 1
136 SN 2006hu SN* 03 34 22.728 -01 07 23.30           SNIa 18 1
137 SN 2007mj SN* 03 34 44.44 +00 21 19.9           SNIa 22 1
138 2MASS J03344452+0021207 G 03 34 44.4939626112 +00 21 19.849579848           ~ 5 0
139 SN 2006jq SN* 03 37 06.456 +00 00 33.38           SNIa 20 1
140 SN 2006jr SN* 03 39 47.160 +00 59 31.68           SNIa 19 1
141 SN 2006kx SN* 03 42 14.6 +00 28 42           SNIa 21 1
142 DENIS J034214.6+002842 G 03 42 14.6610103124 +00 28 42.155068800         17.723 ~ 4 0
143 SN 2007rk SN* 03 42 17.376 +01 03 44.17           SNIa 10 1
144 SN 1995al SN* 09 50 55.97 +33 33 09.4   13.36 13.22     SNIa 103 1
145 NGC 3021 GiG 09 50 57.1456156056 +33 33 12.934404072   12.6       ~ 191 0
146 SN 1994ae SN* 10 47 01.94 +17 16 30.8   13.20 12.99     SNIa 172 1
147 NGC 3370 GiG 10 47 04.0734572856 +17 16 25.315359780   12.4       ~ 251 0
148 SN 2012ht SN* 10 53 22.8 +16 46 35           SNIa-norm 63 1
149 NGC 3447 GiP 10 53 23.9671116744 +16 46 20.741661336   14.3       ~ 97 0
150 NGC 3972 GiP 11 55 45.09048 +55 19 14.6460   13.14   11.94   ~ 217 1
151 SN 2011by SN* 11 55 45.56 +55 19 33.8   12.97 12.95     SNIa-norm 89 1
152 SN 1998aq SN* 11 56 25.87 +55 07 43.2   12.31 14.9     SNIa 187 1
153 NGC 3982 Sy1 11 56 28.1445516072 +55 07 30.859586652   12.20 11.70 11.18   ~ 550 1
154 NGC 4424 H2G 12 27 11.5741235616 +09 25 14.330453700   13.1       ~ 360 0
155 SN 2012cg SN* 12 27 12.83 +09 25 13.2           SNIa-norm 193 1
156 NGC 4536 GiP 12 34 27.1 +02 11 18 11.14 11.16 10.55 17.393   ~ 853 3
157 SN 1981B SN* 12 34 29.57 +02 11 59.3   11.74       SNIa 402 1
158 NGC 4639 GiP 12 42 52.3785000336 +13 15 26.706153600   13.62 12.72     ~ 612 0
159 SN 1990N SN* 12 42 56.68 +13 15 23.4   12.69 12.62     SNIa 392 1
160 SN 2011fe SN* 14 03 05.711 +54 16 25.22   10.12 10.06     SNIa-norm 676 1
161 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2918 2
162 SN 2007af SN* 14 22 21.03 -00 23 37.6     15.4     SNIa 164 1
163 NGC 5584 EmG 14 22 23.811 -00 23 14.82   12.80   12.0 11.8 ~ 268 0
164 SN 2003du SN* 14 34 35.80 +59 20 03.8   13.46       SNIa 352 1
165 UGC 9391 LSB 14 34 37.013 +59 20 16.17   15.5       ~ 89 0
166 SN 2006ex SN* 20 38 43.920 -00 28 34.98           SNIa 21 1
167 SN 2007ks SN* 20 49 33.120 -00 45 42.94           SNIa 19 1
168 SN 2007ph SN* 20 51 13.1768235048 -00 57 17.850502224           SNIa 12 1
169 SN 2007kb SN* 20 52 24.720 +00 16 38.90           SNIa 14 1
170 SN 2006ni SN* 20 54 52.5 -00 11 44           SNIa 26 1
171 2MASS J20545251-0011448 G 20 54 52.5112819484 -00 11 44.895460308         17.117 ~ 6 0
172 SN 2006jp SN* 20 56 56.1 -00 16 44           SNIa 13 1
173 SN 2007pa SN* 21 01 34.560 -00 16 07.56           SNIa 11 1
174 SN 2007hz SN* 21 03 08.95 -01 01 45.1           SNIa 25 1
175 SN 2005fj SN* 21 11 20.85 -00 26 43.3   20.2       SNIa 22 1
176 SDSS J211120.86-002643.4 G 21 11 20.869 -00 26 43.40           ~ 5 0
177 SN 2006kq SN* 21 15 36.49 -00 19 18.2           SNIa 26 1
178 Anon J211536-0019 G 21 15 36.499 -00 19 18.16           ~ 8 0
179 SN 2007pc SN* 21 15 49.47 +00 39 05.0           SNIa 16 1
180 SDSS J211549.47+003904.4 G 21 15 49.477 +00 39 04.40           ~ 3 0
181 SN 2006iz SN* 21 16 17.20 +00 33 34.2           SNIa 10 1
182 SN 2006ky SN* 21 18 40.320 -01 01 27.26           SNIa 17 1
183 SDSS J212939.01-001207.9 G 21 29 39.019 -00 12 07.93           ~ 6 0
184 SDSS-II SN 11172 SN* 21 29 39.120 -00 12 07.88           SNIa 7 0
185 SDSS J213256.13-004200.2 G 21 32 56.132 -00 42 00.22           ~ 5 0
186 SN 2005jl SN* 21 32 56.160 -00 42 00.21           SNIa 31 1
187 SN 2007ih SN* 21 33 10.800 -00 57 36.30           SNIa 21 1
188 SDSS J213419.18+003519.6 G 21 34 19.182 +00 35 19.64           ~ 3 0
189 SN 2006lo SN* 21 34 19.20 +00 35 19.6           SNIa 19 1
190 SDSS J213446.79+011031.4 G 21 34 46.792 +01 10 31.48           ~ 3 0
191 SN 2006fc SN* 21 34 46.800 +01 10 31.51           SNIa 24 1
192 SDSS J213511.75-002055.9 G 21 35 11.758 -00 20 55.92           ~ 2 0
193 SDSS-II SN 14784 SN* 21 35 11.760 -00 20 55.90           SNIa 10 0
194 SN 2006fa SN* 21 35 30.74 -00 58 49.0           SNIa 22 1
195 SDSS J214000.47-000029.0 G 21 40 00.477 -00 00 29.04           ~ 5 0
196 SN 2005ld SN* 21 40 00.480 -00 00 28.96   22.1       SNIa 26 1
197 SN 2007rh SN* 21 41 03.7 +00 08 32           SNIa? 10 1
198 2MASS J21410375+0008328 G 21 41 03.7721696437 +00 08 32.846867659         17.428 ~ 3 0
199 SN 2006kz SN* 21 47 23.520 -00 29 41.15           SNIa 20 1
200 SDSS J214723.57-002941.1 G 21 47 23.574 -00 29 41.10           ~ 3 0
201 SN 2007lt SN* 21 53 47.280 +00 00 54.10           SNIa 18 1
202 SDSS J215347.33+000054.1 G 21 53 47.327 +00 00 54.04           ~ 4 0
203 SN 2005hn SN* 21 57 04.080 -00 13 24.45   23.0       SNIa 27 1
204 SDSS J215704.19-001324.4 G 21 57 04.191 -00 13 24.45           ~ 7 1
205 SN 2006jt SN* 21 58 48.240 +00 11 54.65           SNIa 19 1
206 SDSS-II SN 20545 SN* 22 01 00.000 -00 25 26.35           SNIa 5 0
207 SDSS J220100.11-002526.3 G 22 01 00.116 -00 25 26.37           ~ 2 0
208 SDSS J220819.42-011146.7 G 22 08 19.426 -01 11 46.70           ~ 3 0
209 SN 2006hy SN* 22 08 19.44 -01 11 46.8           SNIa 20 1
210 SDSS-II SN 5890 SN* 22 10 03.759 +00 36 33.13           ~ 8 0
211 SDSS J221003.78+003634.8 G 22 10 03.789 +00 36 34.88           ~ 2 0
212 SN 2006fm SN* 22 10 10.320 +00 30 14.12           SNIa 24 1
213 SN 2006fl SN* 22 11 27.600 +00 45 20.16           SNIa 25 1
214 SN 2007pf SN* 22 11 43.200 +00 34 45.68           SNIa 17 1
215 SDSS J221143.27+003445.5 G 22 11 43.276 +00 34 45.60           ~ 4 0
216 SN 2013dy SN* 22 18 17.5 +40 34 09           SNIa-norm 104 0
217 NGC 7250 AG? 22 18 17.776 +40 33 44.66 13.18 13.22 12.58     ~ 107 1
218 SN 2006ja SN* 22 26 51.8 +00 30 23           SNIa: 18 1
219 2MASS J22265187+0030230 G 22 26 51.8827810166 +00 30 23.042170639           ~ 3 0
220 SDSS J222719.83+010150.5 G 22 27 19.838 +01 01 50.55           ~ 3 0
221 SN 2006hv SN* 22 27 19.920 +01 01 50.59           SNIa 20 1
222 SN 2007la SN* 22 29 54.720 +01 03 30.49           SNIa 18 1
223 SDSS-II SN 15866 SN* 22 35 07.3 +00 58 05           SNIa 7 0
224 2MASS J22350741+0058049 G 22 35 07.3960328058 +00 58 05.128327321         17.440 ~ 2 0
225 SDSS J223556.07+003632.7 G 22 35 56.077 +00 36 32.70           ~ 4 0
226 SN 2007lo SN* 22 35 56.160 +00 36 32.79           SNIa 19 1
227 SN 2007pq SN* 22 37 13.9 +00 44 10           SNIa 17 1
228 2MASS J22371393+0044107 G 22 37 13.9438706132 +00 44 10.683933693         18.196 ~ 3 0
229 SDSS J223853.66-011002.0 G 22 38 53.669 -01 10 02.04           ~ 3 0
230 SN 2007ik SN* 22 38 53.760 -01 10 02.14           SNIa 21 1
231 SDSS-II SN 21487 SN* 22 41 07.44 -00 12 41.2           ~ 3 0
232 SDSS J224107.52-001241.2 G 22 41 07.525 -00 12 41.25           ~ 2 0
233 SN 2006la SN* 22 42 48.240 -00 54 06.33           SNIa 17 1
234 SDSS J224340.96+002513.8 G 22 43 40.9685690496 +00 25 13.784092788           ~ 3 0
235 SN 2007lp SN* 22 43 41.040 +00 25 13.84           SNIa 16 1
236 SN 2006nd SN* 22 44 58.812 -01 00 23.05           SNIa 25 1
237 SDSS J224458.81-010022.9 G 22 44 58.812 -01 00 22.98           ~ 9 0
238 SN 2005ku SN* 22 59 42.61 +00 00 49.3   20.7       SNIa 45 1
239 2MASX J22594265-0000478 G 22 59 42.6675876480 -00 00 48.754674072           ~ 20 1
240 SDSS J231027.26-010627.7 G 23 10 27.2617452192 -01 06 27.722315628           ~ 2 0
241 SDSS-II SN 7600 SN* 23 10 27.360 -01 06 27.68           SNIa 9 0
242 2MASX J23115457-0034478 Sy1 23 11 54.055 -00 34 40.57     19.43     ~ 4 0
243 SN 2007pd SN* 23 11 54.240 -00 34 44.61           SNIa 20 1
244 SDSS J231633.32-003948.4 G 23 16 33.324 -00 39 48.49           ~ 4 0
245 SN 2005id SN* 23 16 33.360 -00 39 48.13   21.5       SNIa 26 1
246 SN 2005fh SN* 23 17 29.6 +00 25 46           SNIa 34 1
247 2MASS J23172970+0025467 G 23 17 29.6950386493 +00 25 46.841792222           ~ 7 1
248 SN 2005jh SN* 23 20 04.4 -00 03 20           SNIa 30 1
249 2MASS J23200446-0003202 G 23 20 04.4430454328 -00 03 20.172435498         17.581 ~ 7 1
250 SN 2006hl SN* 23 22 46.080 +00 31 56.34           SNIa 24 1
251 SN 2006ju SN* 23 24 38.9 -00 43 04           SNIa: 18 1
252 2MASX J23243894-0043046 Sy1 23 24 38.9337410808 -00 43 04.594704024     19.50     ~ 10 0
253 SDSS J232439.30+004911.8 G 23 24 39.300 +00 49 11.88           ~ 2 0
254 SDSS-II SN 8254 SN* 23 24 39.360 +00 49 11.90           SNIa 10 0
255 SN 2006fy SN* 23 26 40.080 -00 50 26.16           SNIa 30 1
256 [VV2003c] J232640.1-005025 Sy1 23 26 40.1561973120 -00 50 25.971253980     19.24     ~ 9 0
257 SN 2007ra SN* 23 34 24.00 -00 53 25.2           SNIa 19 1
258 2MASX J23342408-0053250 Sy1 23 34 24.1050123024 -00 53 24.821039868   19.30 18.53     ~ 17 0
259 SN 2006ku SN* 23 38 13.6 +01 14 56           SNIa 18 1
260 2MASS J23381359+0114569 G 23 38 13.6000395264 +01 14 56.684791413           ~ 3 0
261 SN 2006oh SN* 23 41 12.480 -01 06 21.46           SNIa 16 1
262 SDSS J234112.52-010621.4 G 23 41 12.526 -01 06 21.46           ~ 3 0
263 SDSS J234441.23-000148.3 G 23 44 41.234 -00 01 48.38           ~ 3 0
264 SN 2007jp SN* 23 44 41.280 -00 01 48.27           SNIa 18 1
265 SN 2005ko SN* 23 50 05.03 -00 55 17.1   22.6       SNIa 26 1
266 SDSS J235005.06-005517.5 G 23 50 05.061 -00 55 17.50           ~ 5 0
267 SN 2006fu SN* 23 51 08.400 -00 44 47.64           SNIa: 25 1
268 SN 2007oj SN* 23 51 37.920 +00 16 47.38           SNIa 16 1
269 SN 2007om SN* 23 54 20.7 -00 55 02           SNIa 23 1
270 2MASX J23542073-0055023 Sy2 23 54 20.7189635304 -00 55 02.109218592   19.81 18.97     ~ 10 0
271 SN 2007mk SN* 23 56 16.80 -00 30 02.9           SNIa 15 1
272 SDSS J235909.97+000946.9 G 23 59 09.976 +00 09 46.91           ~ 2 0
273 SDSS-II SN 3674 SN* 23 59 09.989 +00 09 46.71           ~ 4 0
274 SN 2005gx SN* 23 59 32.160 +00 44 12.91   22.6       SNIa 28 1
275 SDSS J235932.24+004412.6 G 23 59 32.244 +00 44 12.67           ~ 4 0

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