2008ApJ...686..117F

Query : 2008ApJ...686..117F

2008ApJ...686..117F - Astrophys. J., 686, 117-126 (2008/October-2)

Luminosity indicators in the ultraviolet spectra of type Ia supernovae.

FOLEY R.J., FILIPPENKO A.V. and JHA S.W.

Abstract (from CDS):

We present a complete sample of International Ultraviolet Explorer and Hubble Space Telescope ultraviolet (UV) spectra of Type Ia supernovae (SNe Ia) through 2004. We measure the equivalent width (EW) and blueshifted velocity of the minimum of the one strong UV feature, Fe II λ3250. We also quantify the slope of the near-UV spectra using a new parameter, the ``UV ratio.'' We find that the velocity of the Fe II line does not correlate with light-curve shape, while the EW shows distinct behavior for the slow- and fast-declining objects. Using precise Cepheid and surface brightness fluctuation distance measurements of six objects with UV spectra observed near maximum light (a total of 12 spectra), we determine that the UV ratio at maximum light is highly correlated with SN Ia luminosity. A larger sample of UV spectra is necessary to determine the validity of these luminosity indicators and whether they can be combined with light-curve shape to improve measured SN Ia distances.

Abstract Copyright: ∼

Journal keyword(s): Cosmology: Observations - Cosmology: Distance Scale - Stars: Supernovae: General - supernovae: individual (1980N) - supernovae: individual (1981B) - supernovae: individual (1982B) - supernovae: individual (1983G) - supernovae: individual (1986G) - supernovae: individual (1989B) - supernovae: individual (1989M) - supernovae: individual (1990M) - supernovae: individual (1990N) - supernovae: individual (1991T) - supernovae: individual (1992A) - supernovae: individual (2001ay) - supernovae: individual (2001ba) - supernovae: individual (2001eh) - supernovae: individual (2001el) - supernovae: individual (2001ep) - supernovae: individual (2001ex) - supernovae: individual (2003bf) - supernovae: individual (2003bt)

Simbad objects: 41

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Number of rows : 41
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 2001eh SN* 01 38 12.10 +41 39 18.8     16.5     SNIa 59 1
2 Z 537-17 G 01 38 15.4655071776 +41 39 14.403726468   15.1       ~ 28 0
3 NGC 1316 rG 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1491 1
4 SN 1980N SN* 03 23 00.319 -37 12 49.90   12.5 12.37     SNIa 159 1
5 SN 1992A SN* 03 36 27.41 -34 57 31.4   12.56 12.50     SNIa 409 1
6 NGC 1380 Sy2 03 36 27.590 -34 58 34.68 11.32 10.94 9.93 9.37   ~ 460 1
7 SN 2001el SN* 03 44 30.60 -44 38 23.4   12.81       SNIa 281 1
8 NGC 1448 EmG 03 44 31.915 -44 38 41.38   11.46   10.24 10.9 ~ 295 1
9 NGC 1699 EmG 04 56 59.6426687016 -04 45 24.674316156   15   13.16   ~ 41 0
10 SN 2001ep SN* 04 57 00.26 -04 45 40.2     17.1     SNIa 78 1
11 SN 2001ex SN* 06 55 59.89 +55 24 03.0     17.2     SNIa 24 1
12 Z 261-11 GiC 06 56 00.449 +55 24 02.75   15.2       ~ 20 0
13 NGC 2268 GiG 07 14 17.441 +84 22 56.18   12.1       ~ 152 0
14 SN 1982B SN* 07 14 33.72 +84 23 11.7   13.7       SNIa 44 1
15 SN 2003bf SN* 08 08 26.35 +12 19 56.2     17.6     SNIa 9 1
16 LEDA 100775 G 08 08 26.602 +12 19 57.18           ~ 14 1
17 SN 2003bt SN* 10 55 22.48 -07 39 12.3     16.7     SNIa 8 1
18 MCG-01-28-006 Sy2 10 55 23.2418906496 -07 39 12.550940676   14.5       ~ 14 1
19 SN 1989B SN* 11 20 13.93 +13 00 18.9   12.25       SNIa 372 1
20 M 66 AGN 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1509 4
21 MCG-05-28-001 Sy2 11 38 00.5005231872 -32 19 29.209509912   14.09   13.30   ~ 57 0
22 SN 2001ba SN* 11 38 01.76 -32 19 51.0   16.44       SNIa 74 1
23 SN 1991bg SN* 12 25 03.70 +12 52 15.6   14.75 14.3     SNIapec 612 1
24 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1841 2
25 SN 1994D SN* 12 34 02.395 +07 42 05.70   11.75 12.03     SNIa 559 1
26 NGC 4527 AGN 12 34 08.49600 +02 39 13.7160   12.4       ~ 549 2
27 SN 1991T SN* 12 34 10.20 +02 39 56.4   11.70 11.51     SNIapec 795 1
28 NGC 4536 H2G 12 34 27.12887 +02 11 16.3680 11.14 11.16 10.55 17.393   ~ 913 3
29 SN 1981B SN* 12 34 29.57 +02 11 59.3   11.74       SNIa 416 1
30 SN 1989M SN* 12 37 40.72 +11 49 25.5   12.56 12.2     SNIa 76 1
31 M 58 Sy2 12 37 43.59747 +11 49 05.1240 10.80 10.48 9.66     ~ 1140 2
32 NGC 4639 Sy1 12 42 52.3785000336 +13 15 26.706153600   13.62 12.72     ~ 642 0
33 SN 1990N SN* 12 42 56.68 +13 15 23.4   12.69 12.62     SNIa 406 1
34 SN 1983G SN* 12 52 20.90 -01 12 12.0   12.97       SNIa 110 1
35 NGC 4753 GiG 12 52 22.112 -01 11 58.88 11.26 10.85 9.95     ~ 288 1
36 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
37 SN 1986G SN* 13 25 36.46 -43 01 53.6   12.45 11.44     SNIapec 422 1
38 SN 1990M SN* 14 11 29.3 -05 02 36           SNIa 40 1
39 NGC 5493 GiG 14 11 29.3792026752 -05 02 36.999208608   13.5       ~ 110 0
40 SN 2001ay SN* 14 26 17.00 +26 14 55.8     16.9     SNIap 82 1
41 IC 4423 AGN 14 26 17.7287818992 +26 14 46.240032912   15.5       ~ 58 0

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