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

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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 - 2022
#notes
1 SN 2000cx SN* 01 24 46.1 +09 30 31           SNIap 208 1
2 SN 1992A SN* 03 36 27.41 -34 57 31.4   12.56 12.50     SNIa 395 1
3 SN 2001el SN* 03 44 30.60 -44 38 23.4   12.81       SNIa 252 1
4 SN 1999by SN* 09 21 52.07 +51 00 06.6   13.66       SNIap 275 1
5 SN 2002bf SN* 10 15 42.31 +55 40 06.7   16.22       SNIa 56 1
6 SN 2002bo SN* 10 18 06.51 +21 49 41.7   13.95       SNIa 297 1
7 SN 1998bu SN* 10 46 46.01 +11 50 07.5   12.11       SNIa 305 1
8 SN 1994ae SN* 10 47 01.94 +17 16 30.8   13.20 12.99     SNIa 164 1
9 SN 1999aw SN* 11 01 36.37 -06 06 31.6   16.88       SNIa 68 1
10 SN 1989B SN* 11 20 13.93 +13 00 18.9   12.25       SNIa 352 1
11 SN 1998aq SN* 11 56 25.87 +55 07 43.2   12.31 14.9     SNIa 177 1
12 SN 1991bg SN* 12 25 03.70 +12 52 15.6   14.75 14.3     SNIapec 563 1
13 SN 1984A SN* 12 26 55.73 +15 03 17.1   12.40 12.20     SNIa 133 1
14 SN 1994D SN* 12 34 02.395 +07 42 05.70   11.75 12.03     SNIa 533 1
15 SN 1991T SN* 12 34 10.20 +02 39 56.4   11.70 11.51     SNIapec 740 1
16 SN 1981B SN* 12 34 29.57 +02 11 59.3   11.74       SNIa 391 1
17 SN 1990N SN* 12 42 56.68 +13 15 23.4   12.69 12.62     SNIa 382 1
18 SN 2002cx SN* 13 13 49.72 +06 57 31.9   17.68       SNIapec 213 1
19 SN 1996X SN* 13 18 01.13 -26 50 45.3   12.99 13.00     SNIa 185 1
20 SN 1986G SN* 13 25 36.46 -43 01 53.6   12.45 11.44     SNIapec 396 1
21 SN 1997cn SN* 14 09 57.76 +17 32 32.3   17.2 16.7     SNIapec 80 1
22 SN 2001ay SN* 14 26 17.00 +26 14 55.8     16.9     SNIap 74 1
23 SN 1991M SN* 15 58 34.82 +17 27 28.7     14.55     SNIa 60 1
24 SN 1999ee SN* 22 16 09.40 -36 50 31.5   14.85       SNIa 183 1

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2022.07.06-09:30:06

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