Radiation hydrodynamics of SN 1987A. I. Global analysis of the light curve for the first 4 months

被引:237
作者
Blinnikov, S [1 ]
Lundqvist, P
Bartunov, O
Nomoto, K
Iwamoto, K
机构
[1] Inst Theoret & Expt Phys, Moscow 117218, Russia
[2] Stockholm Observ, SE-13336 Saltsjobaden, Sweden
[3] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119992, Russia
[4] Univ Tokyo, Dept Astron, Tokyo 1130033, Japan
[5] Univ Tokyo, Res Ctr Early Universe, Tokyo 1130033, Japan
关键词
hydrodynamics; radiative transfer; scattering; shock waves; stars : interiors; supernovae : individual (SN 1987A);
D O I
10.1086/308588
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The optical/UV light curves of SN 1987A are analyzed with the multienergy group radiation hydrodynamics code STELLA. The calculated monochromatic and bolometric light curves are compared with observations shortly after shock breakout, during the early plateau, through the broad second maximum, and during the earliest phase of the radioactive tail. We have concentrated on a progenitor model calculated by Nomoto & Hashimoto and Saio, Nomoto, & Kato, which assumes that 14 M-circle dot of the stellar mass is ejected. Using this model, we have updated constraints on the explosion energy and the extent of mixing in the ejecta. In particular, we determine the most likely range of E/M (explosion energy over ejecta mass) and R-0 (radius of the progenitor). In general, our best models have energies in the range E = (1.1 +/- 0.3) x 10(51) ergs, and the agreement is better than in earlier, flux-limited diffusion calculations for the same explosion energy. Our modeled B and V fluxes compare well with observations, while the flux in U undershoots after similar to 10 days by a factor of a few, presumably owing to NLTE and line transfer effects. We also compare our results with IUE observations, and a very good quantitative agreement is found for the first days, and for one IUE band (2500-3000 Angstrom) as long as for 3 months. We point out that the V flux estimated by McNaught & Zoltowski should probably be revised to a lower value.
引用
收藏
页码:1132 / 1149
页数:18
相关论文
共 97 条
  • [71] POPOV DV, 1995, ASTRON LETT+, V21, P610
  • [72] ULTRAVIOLET OBSERVATIONS OF SN 1987A WITH THE IUE SATELLITE
    PUN, CSJ
    KIRSHNER, RP
    SONNEBORN, G
    CHALLIS, P
    NASSIOPOULOS, G
    ARQUILLA, R
    CRENSHAW, DM
    SHRADER, C
    TEAYS, T
    CASSATELLA, A
    GILMOZZI, R
    TALAVERA, A
    WAMSTEKER, W
    [J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1995, 99 (01) : 223 - 261
  • [73] NITROGEN AND HELIUM ENHANCEMENT IN THE PROGENITOR OF SUPERNOVA-1987A
    SAIO, H
    NOMOTO, K
    KATO, M
    [J]. NATURE, 1988, 334 (6182) : 508 - 510
  • [74] WHY DID THE PROGENITOR OF SN 1987A UNDERGO THE BLUE-RED-BLUE EVOLUTION
    SAIO, H
    KATO, M
    NOMOTO, K
    [J]. ASTROPHYSICAL JOURNAL, 1988, 331 (01) : 388 - 393
  • [75] NON-LTE MODEL-CALCULATIONS FOR SN-1987A AND THE EXTRAGALACTIC DISTANCE SCALE
    SCHMUTZ, W
    ABBOTT, DC
    RUSSELL, RS
    HAMANN, WR
    WESSOLOWSKI, U
    [J]. ASTROPHYSICAL JOURNAL, 1990, 355 (01) : 255 - 270
  • [76] UBV PHOTOMETRY OF SN-1987A - EARLIEST PHOTOELECTRIC OBSERVATIONS
    SHELTON, IK
    LAPASSET, E
    [J]. ASTRONOMICAL JOURNAL, 1993, 105 (05) : 1892 - 1894
  • [77] SHIGEYAMA T, 1988, ASTRON ASTROPHYS, V196, P141
  • [78] THEORETICAL LIGHT-CURVE OF SN-1987A AND MIXING OF HYDROGEN AND NICKEL IN THE EJECTA
    SHIGEYAMA, T
    NOMOTO, K
    [J]. ASTROPHYSICAL JOURNAL, 1990, 360 (01) : 242 - 256
  • [79] LIGHT-CURVE MODELS FOR SUPERNOVA SN1987A IN THE LARGE MAGELLANIC CLOUD
    SHIGEYAMA, T
    NOMOTO, K
    HASHIMOTO, M
    SUGIMOTO, D
    [J]. NATURE, 1987, 328 (6128) : 320 - 323
  • [80] SOBOLEV VV, 1980, ASTROFIZIKA, V16, P695