2012ApJ...749..126W

Query : 2012ApJ...749..126W

2012ApJ...749..126W - Astrophys. J., 749, 126 (2012/April-3)

Evidence for type Ia supernova diversity from ultraviolet observations with the Hubble space telescope.

WANG X., WANG L., FILIPPENKO A.V., BARON E., KROMER M., JACK D., ZHANG T., ALDERING G., ANTILOGUS P., ARNETT W.D., BAADE D., BARRIS B.J., BENETTI S., BOUCHET P., BURROWS A.S., CANAL R., CAPPELLARO E., CARLBERG R.G., DI CARLO E., CHALLIS P.J., CROTTS A.P.S., DANZIGER J.I., DELLA VALLE M., FINK M., FOLEY R.J., FRANSSON C., GAL-YAM A., GARNAVICH P.M., GERARDY C.L., GOLDHABER G., HAMUY M., HILLEBRANDT W., HOFLICH P., HOLLAND S.T., HOLZ D.E., HUGHES J.P., JEFFERY D.J., JHA S.W., KASEN D., KHOKHLOV A.M., KIRSHNER R.P., KNOP R.A., KOZMA C., KRISCIUNAS K., LEE B.C., LEIBUNDGUT B., LENTZ E.J., LEONARD D.C., LEWIN W.H.G., LI W., LIVIO M., LUNDQVIST P., MAOZ D., MATHESON T., MAZZALI P.A., MEIKLE P., MIKNAITIS G., MILNE P.A., MOCHNACKI S.W., NOMOTO K., NUGENT P.E., ORAN E.S., PANAGIA N., PERLMUTTER S., PHILLIPS M.M., PINTO P., POZNANSKI D., PRITCHET C.J., REINECKE M., RIESS A.G., RUIZ-LAPUENTE P., SCALZO R.A., SCHLEGEL E.M., SCHMIDT B.P., SIEGRIST J., SODERBERG A.M., SOLLERMAN J., SONNEBORN G., SPADAFORA A., SPYROMILIO J., SRAMEK R.A., STARRFIELD S.G., STROLGER L.G., SUNTZEFF N.B., THOMAS R.C., TONRY J.L., TORNAMBE A., TRURAN J.W., TURATTO M., TURNER M., VAN DYK S.D., WEILER K.W., WHEELER J.C., WOOD-VASEY M., WOOSLEY S.E. and YAMAOKA H.

Abstract (from CDS):

We present ultraviolet (UV) spectroscopy and photometry of four Type Ia supernovae (SNe 2004dt, 2004ef, 2005M, and 2005cf) obtained with the UV prism of the Advanced Camera for Surveys on the Hubble Space Telescope. This data set provides unique spectral time series down to 2000 Å. Significant diversity is seen in the near-maximum-light spectra (∼2000-3500 Å) for this small sample. The corresponding photometric data, together with archival data from Swift Ultraviolet/Optical Telescope observations, provide further evidence of increased dispersion in the UV emission with respect to the optical. The peak luminosities measured in the uvw1/F250W filter are found to correlate with the B-band light-curve shape parameter Δm15(B), but with much larger scatter relative to the correlation in the broadband B band (e.g., ∼0.4 mag versus ∼0.2 mag for those with 0.8 mag < Δm15(B) < 1.7 mag). SN 2004dt is found as an outlier of this correlation (at > 3σ), being brighter than normal SNe Ia such as SN 2005cf by ∼0.9 mag and ∼2.0 mag in the uvw1/F250W and uvm2/F220W filters, respectively. We show that different progenitor metallicity or line-expansion velocities alone cannot explain such a large discrepancy. Viewing-angle effects, such as due to an asymmetric explosion, may have a significant influence on the flux emitted in the UV region. Detailed modeling is needed to disentangle and quantify the above effects.

Abstract Copyright: ∼

Journal keyword(s): cosmology: observations - distance scale - dust, extinction - supernovae: general - ultraviolet: general

Simbad objects: 24

goto Full paper

goto View the references in ADS

Number of rows : 24
N Identifier Otype ICRS (2000)
RA 		ICRS (2000)
DEC 		Proper motions Parallaxes Redshift Rad. vel. cz Mag U Mag B Mag V Mag R Mag I Sp type Morph. type Angular size #ref
1983 - 2024
1 SN 2001eh Supernova 01 38 12.10 +41 39 18.8 0.0363151 10689 10887.000     16.5     SNIa ~ ~ ~ ~ 52
2 SN 2004dt Supernova 02 02 12.3 -00 06 02 0.0216 6406 6476           SNIa ~ ~ ~ ~ 141
3 NGC 799 LINER 02 02 12.3388058520 -00 06 02.270888460 1.354 -2.047 0.5554 0.01940 5760 5816.0   14.2       ~ SAB 0.637 0.548 45 66
4 SN 2005ke Supernova 03 35 04.35 -24 56 38.8 0.0042 1256 1259     17.2     SNIap ~ ~ ~ ~ 151
5 SN 1992A Supernova 03 36 27.41 -34 57 31.4 0.0058 1734 1739   12.56 12.50     SNIa ~ ~ ~ ~ 403
6 SN 2001el Supernova 03 44 30.60 -44 38 23.4 0.0039 1166 1168   12.81       SNIa ~ ~ ~ ~ 263
7 SN 2001ep Supernova 04 57 00.26 -04 45 40.2 0.0129490 3857 3882.000     17.1     SNIa ~ ~ ~ ~ 70
8 NGC 2930 EmissionG 09 37 32.7585308016 +23 12 12.028906044 0.022012 6526 6599.03   14.7       ~ ~ 0.50 0.22 133 37
9 SN 2005M Supernova 09 37 32.76 +23 12 10.0 0.02464000 7296 7386.8862     18.8     SNIa ~ ~ ~ ~ 80
10 SN 1989B Supernova 11 20 13.93 +13 00 18.9 0.0036 1077 1079   12.25       SNIa ~ ~ ~ ~ 362
11 SN 2006X Supernova 12 22 53.93 +15 48 32.0 0.0036395 1089 1091.100     15.3     SNIa ~ ~ ~ ~ 330
12 SN 1991bg Supernova 12 25 03.70 +12 52 15.6 0.0042 1256 1259   14.75 14.3     SNIapec ~ ~ ~ ~ 587
13 SN 1991T Supernova 12 34 10.20 +02 39 56.4 0.0070 2091 2099   11.70 11.51     SNIapec ~ ~ ~ ~ 770
14 SN 1981B Supernova 12 34 29.57 +02 11 59.3 0.0072 2151 2159   11.74       SNIa ~ ~ ~ ~ 400
15 SN 1990N Supernova 12 42 56.68 +13 15 23.4 0.003 898 899   12.69 12.62     SNIa ~ ~ ~ ~ 393
16 SN 2002cx Supernova 13 13 49.72 +06 57 31.9 0.0240 7098 7184   17.68       SNIapec ~ ~ ~ ~ 223
17 SN 2011fe Supernova 14 03 05.711 +54 16 25.22 0.001208 362 362.15   10.12 10.06     SNIa-norm ~ ~ ~ ~ 678
18 SN 2003fk Supernova 14 19 55.800 +53 05 50.64 0.35530001 88436 106516.2633         18.90 SNIa ~ ~ ~ ~ 18
19 SN 2007af Supernova 14 22 21.03 -00 23 37.6 0.0055 1644 1649     15.4     SNIa ~ ~ ~ ~ 167
20 SN 2005cf Supernova 15 21 33.12 -07 26 57.1 0.0064 1913 1919   13.54       SNIa ~ ~ ~ ~ 281
21 MCG-01-39-003 GinPair 15 21 33.377 -07 26 51.65 0.006482 1937 1943.30   15       ~ ~ 0.633 0.291 10 65
22 SN 2009dc Supernova 15 51 12.12 +25 42 28.0 0.0214 6347 6416           SNIa-norm ~ ~ ~ ~ 165
23 SN 2004ef Supernova 22 42 10.020 +19 59 39.88 0.03098000 9144 9287.5703           SNIa ~ ~ ~ ~ 94
24 UGC 12158 GtowardsGroup 22 42 10.5285785904 +19 59 48.887242548 0.031501 9295 9443.67   15.3       ~ Sa-Sc 0.560 0.504 75 55

To bookmark this query, right click on this link: simbad:objects in 2012ApJ...749..126W and select 'bookmark this link' or equivalent in the popup menu