2006PASP..118..560B

Query : 2006PASP..118..560B

2006PASP..118..560B - Publ. Astron. Soc. Pac., 118, 560-571 (2006/April-0)

Comparative direct analysis of type Ia supernova spectra. II. Maximum light.

BRANCH D., DANG L.C., HALL N., KETCHUM W., MELAKAYIL M., PARRENT J., TROXEL M.A., CASEBEER D., JEFFERY D.J. and BARON E.

Abstract (from CDS):

A comparative study of near-maximum-light optical spectra of 24 Type Ia supernovae (SNe Ia) is presented. The spectra are assigned to four groups. Seven ``core-normal'' SNe Ia have very similar spectra, except for strong, high-velocity Ca II absorption in SN 2001el. Seven SNe Ia are assigned to a ``broad-line'' group, the most extreme of which is SN 1984A. Five SNe Ia, including SN 1991bg, are assigned to a ``cool'' group. Five SNe Ia, including SN 1991T, are assigned to a ``shallow-silicon'' group. Comparisons with SYNOW synthetic spectra provide a basis for discussion of line identifications and an internally consistent quantification of the maximum-light spectroscopic diversity among SNe Ia. The extent to which SN Ia maximum-light spectra appear to have a continuous distribution of properties, rather than consist of discrete subtypes, is discussed.

Abstract Copyright: ∼

Journal keyword(s): Stars: Supernovae: General

Simbad objects: 24

goto Full paper

goto View the references in ADS

Number of rows : 24
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 2000cx SN* 01 24 46.150 +09 30 30.89           SNIap 227 1
2 SN 1992A SN* 03 36 27.41 -34 57 31.4   12.56 12.50     SNIa 409 1
3 SN 2001el SN* 03 44 30.60 -44 38 23.4   12.81       SNIa 281 1
4 SN 1999by SN* 09 21 52.07 +51 00 06.6   13.66       SNIap 307 1
5 SN 2002bf SN* 10 15 42.316 +55 40 07.35   16.22       SNIa 69 1
6 SN 2002bo SN* 10 18 06.51 +21 49 41.7   13.95       SNIa 325 1
7 SN 1998bu SN* 10 46 46.01 +11 50 07.5   12.11       SNIa 328 1
8 SN 1994ae SN* 10 47 01.94 +17 16 30.8   13.20 12.99     SNIa 183 1
9 SN 1999aw SN* 11 01 36.37 -06 06 31.6   16.88       SNIa 76 1
10 SN 1989B SN* 11 20 13.93 +13 00 18.9   12.25       SNIa 372 1
11 SN 1998aq SN* 11 56 25.87 +55 07 43.2   12.31 14.9     SNIa 197 1
12 SN 1991bg SN* 12 25 03.70 +12 52 15.6   14.75 14.3     SNIapec 612 1
13 SN 1984A SN* 12 26 55.73 +15 03 17.1   12.40 12.20     SNIa 140 1
14 SN 1994D SN* 12 34 02.395 +07 42 05.70   11.75 12.03     SNIa 559 1
15 SN 1991T SN* 12 34 10.20 +02 39 56.4   11.70 11.51     SNIapec 795 1
16 SN 1981B SN* 12 34 29.57 +02 11 59.3   11.74       SNIa 416 1
17 SN 1990N SN* 12 42 56.68 +13 15 23.4   12.69 12.62     SNIa 406 1
18 SN 2002cx SN* 13 13 49.72 +06 57 31.9   17.68       SNIapec 240 1
19 SN 1996X SN* 13 18 01.13 -26 50 45.3   12.99 13.00     SNIa 198 1
20 SN 1986G SN* 13 25 36.46 -43 01 53.6   12.45 11.44     SNIapec 422 1
21 SN 1997cn SN* 14 09 57.76 +17 32 32.3   17.2 16.7     SNIapec 91 1
22 SN 2001ay SN* 14 26 17.00 +26 14 55.8     16.9     SNIap 82 1
23 SN 1991M SN* 15 58 34.82 +17 27 28.7     14.55     SNIa 66 1
24 SN 1999ee SN* 22 16 09.40 -36 50 31.5   14.85       SNIa 201 1

To bookmark this query, right click on this link: simbad:objects in 2006PASP..118..560B and select 'bookmark this link' or equivalent in the popup menu