2011MNRAS.410.1262W

Query : 2011MNRAS.410.1262W

2011MNRAS.410.1262W - Mon. Not. R. Astron. Soc., 410, 1262-1282 (2011/January-2)

Supernova Legacy Survey: using spectral signatures to improve Type Ia supernovae as distance indicators.

WALKER E.S., HOOK I.M., SULLIVAN M., HOWELL D.A., ASTIER P., BALLAND C., BASA S., BRONDER T.J., CARLBERG R., CONLEY A., FOUCHEZ D., GUY J., HARDIN D., PAIN R., PERRETT K., PRITCHET C., REGNAULT N., RICH J., ALDERING G., FAKHOURI H.K., KRONBORG T., PALANQUE-DELABROUILLE N., PERLMUTTER S., RUHLMANN-KLEIDER V. and ZHANG T.

Abstract (from CDS):

Optical long-slit spectroscopy at the Gemini-North telescope using the Gemini Multi-Object Spectrograph (GMOS) was used to classify targets from the Supernova Legacy Survey (SNLS) from 2005 July and 2006 May-2008 May. During this time, 95 objects were observed. Where possible, the objects' redshifts (z) were measured from narrow emission or absorption features in the host galaxy spectrum, otherwise they were measured from the broader supernova features. We present spectra of 68 confirmed or probable SNe Ia from SNLS with redshifts in the range 0.17 ≤ z ≤ 1.02. In combination with earlier SNLS Gemini and VLT spectra, we used these new observations to measure pseudo-equivalent widths (EWs) of three spectral features - Ca II H&K, Si II and Mg II- in 144 objects and compared them to the EWs of low-redshift SNe Ia from a sample drawn from the literature. No signs of changes with z are seen for the Ca II H&K and Mg II features. Systematically lower EW Si II is seen at high redshift, but this can be explained by a change in demographics of the SNe Ia population within a two-component model combined with an observed correlation between EW Si II and photometric light-curve stretch.

Abstract Copyright: 2010 The Authors Monthly Notices of the Royal Astronomical Society2010 RAS

Journal keyword(s): cosmology: observations - supernovae: general

VizieR on-line data: <Available at CDS (J/MNRAS/410/1262): tablea1.dat tablea2.dat tablea3.dat tablea4.dat tablea5.dat tablea6.dat tablea7.dat>

Simbad objects: 124

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Number of rows : 124
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 1999ej SN* 01 22 57.38 +33 27 58.0   15.65       SNIa 77 1
2 SN 2004dt SN* 02 02 12.770 -00 05 51.50           SNIa 150 1
3 SNLS 06D1gu SN* 02 24 33.91 -04 17 37.8           SN 1 0
4 SNLS 07D1cx SN* 02 24 58.48 -04 01 54.2           SNIa 2 0
5 SNLS 06D1bt SN* 02 24 59.57 -04 01 05.4           SNIa 2 0
6 SNLS 06D1bz SN* 02 25 07.620 -04 42 06.58           SNIa 2 0
7 SNLS 07D1ea SN* 02 25 14.77 -04 55 39.8           SNIa 2 0
8 SNLS 07D1ds SN* 02 25 24.44 -04 18 49.3           SNIa 2 0
9 SNLS 06D1jp SN* 02 25 48.07 -04 17 56.0           SN 1 0
10 SNLS 06D1ck SN* 02 26 25.37 -04 40 43.8           SNIa? 1 0
11 SNLS 06D1gg SN* 02 26 28.56 -04 44 54.3           SN 1 0
12 SNLS 06D1hl SN* 02 26 42.95 -04 18 22.3           SN? 1 0
13 SNLS 07D1dv SN* 02 26 51.27 -04 47 18.3           SNIa 2 0
14 SNLS 06D1dt SN* 02 27 15.20 -04 35 44.9           SN 1 0
15 SNLS 08D1aa SN* 02 27 37.13 -04 03 02.6           SNIa? 2 0
16 SN 1999gp SN* 02 31 39.15 +39 22 52.3   16.04       SNIa 98 1
17 SN 2004S SN* 06 45 43.50 -31 13 52.5   14.14 14.39     SNIa 79 1
18 SN 1998ec SN* 06 53 06.11 +50 02 22.1   16.16       SNIa 60 1
19 SN 2000fa SN* 07 15 29.88 +23 25 42.4   15.85       SNIa 90 1
20 SN 1997do SN* 07 26 42.50 +47 05 36.0   14.27       SNIa 74 1
21 SN 1999aa SN* 08 27 42.03 +21 29 14.8           SNIap 274 1
22 SN 1999gd SN* 08 38 24.61 +25 45 33.1   16.94       SNIa 72 1
23 SNLS 08D2bj SN* 09 58 51.48 +02 07 07.4           SNIa 1 0
24 SNLS 08D2dz SN* 09 58 53.07 +01 44 19.2           SNIa 2 0
25 SNLS 08D2iq SN* 09 58 56.05 +02 34 27.0           SNIa 1 0
26 SNLS 08D2kj SN* 09 59 13.37 +02 25 04.4           SNIa 2 0
27 SNLS 07D2kl SN* 09 59 16.95 +02 31 28.1           SN? 1 0
28 SNLS 07D2bu SN* 09 59 27.59 +02 33 03.5           SN 1 0
29 SNLS 08D2cl SN* 09 59 28.55 +02 29 49.0           SNIa? 2 0
30 SNLS 06D2ji SN* 09 59 51.03 +01 51 50.1           SNIa? 2 0
31 SNLS 08D2hw SN* 10 00 06.70 +02 33 08.7           SNIa 2 0
32 SNLS 07D2ki SN* 10 00 26.69 +01 56 48.9           SN? 1 0
33 SNLS 07D2kh SN* 10 00 28.94 +02 13 39.6           SNIa 2 0
34 SNLS 06D2ja SN* 10 00 33.51 +02 28 01.0           SNIa 2 0
35 SNLS 06D2iz SN* 10 00 34.76 +02 19 20.2           SNIa? 2 0
36 SNLS 08D2fj SN* 10 00 57.55 +02 02 30.7           SN? 1 0
37 SNLS 08D2ad SN* 10 00 59.19 +01 45 27.3           SNIa 2 0
38 SNLS 07D2ke SN* 10 01 04.73 +01 59 31.8           SNII 1 0
39 SNLS 08D2gw SN* 10 01 05.95 +02 31 19.9           SNIa 2 0
40 SNLS 07D2kc SN* 10 01 07.19 +02 02 28.6           SNIa 2 0
41 SNLS 06D2ju SN* 10 01 34.65 +02 26 42.7           SNIa? 2 0
42 SNLS 08D2ch SN* 10 01 39.61 +02 06 57.6           SNIa? 2 0
43 SNLS 07D2cy SN* 10 01 49.49 +02 40 59.1           SNIa 2 0
44 SNLS 08D2aa SN* 10 01 52.77 +02 15 57.7           SNIa 1 0
45 SNLS 08D2dr SN* 10 01 54.13 +02 04 02.0           SNIa 2 0
46 SNLS 08D2au SN* 10 02 01.84 +02 15 03.8           SN? 1 0
47 SNLS 08D2id SN* 10 02 01.98 +02 13 13.4           SNIa 2 0
48 SNLS 08D2eo SN* 10 02 03.85 +02 33 44.7           SNII 1 0
49 SNLS 06D2js SN* 10 02 15.70 +02 35 06.6           SNIa 2 0
50 SN 2002bo SN* 10 18 06.51 +21 49 41.7   13.95       SNIa 325 1
51 SN 1998bu SN* 10 46 46.01 +11 50 07.5   12.11       SNIa 328 1
52 SN 1989B SN* 11 20 13.93 +13 00 18.9   12.25       SNIa 372 1
53 SN 1998aq SN* 11 56 25.87 +55 07 43.2   12.31 14.9     SNIa 197 1
54 SN 2001V SN* 11 57 24.910 +25 12 09.51   14.62       SNIa 115 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 1990N SN* 12 42 56.68 +13 15 23.4   12.69 12.62     SNIa 406 1
58 SN 1996X SN* 13 18 01.13 -26 50 45.3   12.99 13.00     SNIa 198 1
59 SNLS 07D3cn SN* 14 16 17.25 +52 32 22.6           SNIa 2 0
60 SN 2003fg SN* 14 16 18.924 +52 14 53.68           SNIa 141 1
61 SNLS 07D3hl SN* 14 16 25.15 +53 08 33.7           SNIa 2 0
62 SNLS 08D3fp SN* 14 16 28.53 +53 06 10.2           SN? 1 0
63 SNLS 06D3el SN* 14 17 01.087 +52 13 56.64         21.89 SNIa 13 0
64 SNLS 06D3gx SN* 14 17 03.234 +52 56 10.51         22.17 SNIa 10 0
65 SNLS 08D3bh SN* 14 17 06.50 +53 01 37.4           SNIa 2 0
66 SNLS 07D3ib SN* 14 17 10.79 +53 04 46.9           SNIa 2 0
67 SNLS 07D3ae SN* 14 17 33.70 +52 31 27.2           SNIa 2 0
68 SNLS 06D3gn SN* 14 17 44.630 +52 21 40.25           SNIa 12 0
69 SNLS 08D3dx SN* 14 17 47.82 +52 23 02.8           SNIa? 2 0
70 SNLS 07D3it SN* 14 18 08.73 +52 25 04.1           SNIa 1 0
71 SNLS 07D3ap SN* 14 18 10.26 +52 23 07.4           SNIa 2 0
72 SNLS 07D3bb SN* 14 18 10.31 +52 18 26.4           SN? 1 0
73 SNLS 07D3cr SN* 14 18 12.82 +52 19 04.6           SNIa 2 0
74 SNLS 06D3gh SN* 14 18 31.419 +52 26 34.47         23.52 SNIa 14 0
75 SNLS 08D3gf SN* 14 18 32.27 +53 04 57.3           SNIa 2 0
76 SNLS 07D3gm SN* 14 18 32.32 +52 43 29.6           SNIa 2 0
77 SNLS 06D3ed SN* 14 18 47.802 +52 45 23.61         21.63 SNIa 14 0
78 SNLS 07D3af SN* 14 19 05.010 +53 06 08.98           SNIa 3 0
79 SNLS 07D3ai SN* 14 19 06.71 +52 40 11.7           SNII 1 0
80 SNLS 07D3ey SN* 14 19 18.94 +53 04 35.9           SNIa 2 0
81 SNLS 06D3fr SN* 14 19 20.24 +52 31 50.1           SNII 3 0
82 SNLS 08D3au SN* 14 19 43.14 +53 06 31.2           SNII 1 0
83 SNLS 08D3hh SN* 14 19 51.20 +52 38 00.2           SNIa 2 0
84 SNLS 07D3da SN* 14 20 06.24 +52 16 16.6           SNIa 2 0
85 SNLS 06D3gg SN* 14 20 17.36 +53 10 42.3           SNII 2 0
86 SNLS 06D3fp SN* 14 20 18.605 +52 53 49.79         20.10 SNIa 15 0
87 SNLS 07D3hz SN* 14 20 29.57 +52 23 56.8           SNIa 2 0
88 SNLS 07D3do SN* 14 20 35.68 +52 44 48.6           SNIa? 2 0
89 SNLS 06D3hd SN* 14 20 42.76 +52 14 20.3           SN 1 0
90 SNLS 08D3dc SN* 14 20 44.79 +52 46 48.2           SNIa 2 0
91 SNLS 07D3cu SN* 14 20 56.53 +52 15 13.4           SNIa 2 0
92 SNLS 07D3bo SN* 14 20 58.41 +52 20 37.2           SNIa? 2 0
93 SNLS 07D3bp SN* 14 21 01.32 +52 13 37.2           SN? 1 0
94 SNLS 06D3fv SN* 14 21 03.31 +53 00 52.8           SN 1 0
95 SNLS 07D3hv SN* 14 21 05.94 +52 53 36.6           SNIa 2 0
96 SNLS 07D3hu SN* 14 21 14.56 +52 47 53.4           SNIa 2 0
97 SNLS 07D3ea SN* 14 21 16.116 +52 40 07.88           SNIa 2 0
98 SNLS 08D3gu SN* 14 21 24.10 +53 05 35.1           SNIa 2 0
99 SNLS 07D3fi SN* 14 21 24.80 +53 10 40.1           SN 2 0
100 SNLS 07D3bt SN* 14 21 25.72 +52 58 13.7           SNIa? 2 0
101 SNLS 07D3hw SN* 14 21 48.41 +52 30 33.6           SNIa 2 0
102 SNLS 08D3gb SN* 14 21 53.41 +52 11 47.9           SNIa 2 0
103 SNLS 06D3et SN* 14 22 04.770 +52 20 18.12         20.60 SNIa 13 0
104 SNLS 08D3fu SN* 14 22 35.86 +53 00 37.0           SN? 1 0
105 SNLS 07D3am SN* 14 22 36.55 +52 20 26.3           SNII 1 0
106 SNLS 07D3dj SN* 14 22 40.79 +53 02 14.7           SNIa 2 0
107 SN 2001ay SN* 14 26 17.00 +26 14 55.8     16.9     SNIap 82 1
108 SN 2003du SN* 14 34 35.80 +59 20 03.8   13.46       SNIa 374 1
109 SN 1999cc SN* 16 02 42.03 +37 21 34.4   16.78       SNIa 83 1
110 SN 2002er SN* 17 11 29.88 +07 59 44.8   14.25       SNIa 144 1
111 SN 1998V SN* 18 22 37.40 +15 42 08.4   15.07       SNIa 72 1
112 SN 2004eo SN* 20 32 54.19 +09 55 42.7   15.07 17.8     SNIa 225 1
113 SN 2000E SN* 20 37 13.77 +66 05 50.2   12.85       SNIa 97 1
114 SNLS 06D4fc SN* 22 13 52.30 -17 19 30.3           SNIa? 2 0
115 SNLS 06D4fy SN* 22 14 06.22 -17 34 19.3           SNIa 2 0
116 SNLS 06D4dh SN* 22 14 19.693 -17 35 06.03         20.80 SNIa 13 0
117 SNLS 06D4gn SN* 22 15 14.81 -17 23 01.4           SN 1 0
118 SNLS 06D4hc SN* 22 15 40.52 -18 09 08.7           SNII? 1 0
119 SN 1999ee SN* 22 16 09.40 -36 50 31.5   14.85       SNIa 201 1
120 SNLS 07D4fl SN* 22 16 13.16 -18 11 46.0           SNIa 2 0
121 SNLS 05D4bo SN* 22 16 44.63 -17 20 12.4           SN 1 0
122 SNLS 06D4dr SN* 22 16 46.00 -17 20 45.5           SNIa 2 0
123 SN 1998eg SN* 22 39 30.29 +08 36 20.6   16.11       SNIa 68 1
124 SN 1998dh SN* 23 14 40.31 +04 32 14.1   13.85       SNIa 92 1

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