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Explosive Ideas about Massive Stars - from Observations to Modeling

10–13 Aug 2011
AlbaNova University Center
Europe/Stockholm timezone

Session

SN 1987A, cont'd

10
12 Aug 2011, 13:00
Oskar Klein (AlbaNova University Center)

Oskar Klein

AlbaNova University Center

Conveners

SN 1987A, cont'd: S. Park, "X-ray emission from SN 1987A"

  • There are no conveners in this block

SN 1987A, cont'd: S. Ng, "Supernova 1987A in Radio"

  • There are no conveners in this block

SN 1987A, cont'd: K. Kjaer, "The structure of the inner ejecta of SN 1987A"

  • There are no conveners in this block

SN 1987A, cont'd: J. Larsson, "X-ray illumination of the ejecta of SN1987A"

  • There are no conveners in this block

SN 1987A, cont'd: K. France, "Hydrogen, Helium, Carbon, and Nitrogen Emission from the SN 1987A Reverse Shock"

  • There are no conveners in this block

SN 1987A, cont'd: A. Jerkstrand, "Spectroscopic modeling of SN 1987A and other Type II SNe"

  • There are no conveners in this block

SN 1987A, cont'd: M. Matsuura,"Herschel Detects a Massive Dust Reservoir in Supernova 1987A"

  • There are no conveners in this block

SN 1987A, cont'd

  • Alicia M. Soderberg (CfA, Harvard)

Presentation materials

There are no materials yet.

  1. 360. X-Ray Emission from SNR 1987A
    Prof. Sangwook Park (University of Texas at Arlington)
    12/08/2011, 13:00
    SN 1987A has been monitored by several X-ray missions such as Chandra, XMM-Newton, ROSAT, Suzaku, and Swift. Now in the phase of young supernova remnant (SNR), X-ray emission from 1987A is dominated by radiation from the shock interacting with dense circumstellar medium. The most extensive X-ray study of SNR 1987A has been performed by Chandra observations for the last 12 years. We...
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  2. 308. Supernova 1987A in Radio
    Dr Stephen C.-Y. Ng (McGill University)
    12/08/2011, 13:25
    Being the brightest supernova since the invention of modern telescopes, SN 1987A has been intensively studied over the last two decades and it exhibited a highly unusual evolution. At radio frequencies, the initial outburst peaked on day 4 then followed by a rapid decay. The radio emission re-emerged around mid-1990, marking the birth of a radio remnant. Monitoring observations with the...
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  3. 370. The structure of the inner ejecta of SN 1987A
    Dr Karina Kjaer (Queen's University Belfast)
    12/08/2011, 13:50
    Observing the inner ejecta of a supernova is possible only in a handful of nearby supernova remnants. SN 1987A is the first modern stellar explosion that has been continuously observed from its beginning to the supernova remnant phase. Twenty years after the explosion, we are now able to observe the three-dimensional spatially resolved inner ejecta of this supernova. We have used...
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  4. 366. X-ray illumination of the ejecta of SN1987A
    Josefin Larsson (Stockholm University & Oskar Klein Centre)
    12/08/2011, 14:15
    I will present the light curve of the ejecta of SN 1987A measured from HST observations spanning the past 17 years. The light curve shows that the flux declined up to around year 2001, but then started to increase, reaching a level more than twice as high in 2010. The declining phase is well modelled by radioactive decay of 44Ti, but a new energy source is needed to explain the...
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  5. 368. Hydrogen, Helium, Carbon, and Nitrogen Emission from the SN 1987A Reverse Shock
    Dr Kevin France (University of Colorado)
    12/08/2011, 15:10
    In this talk, I will present the most sensitive ultraviolet observations of Supernova 1987A to date. Imaging spectroscopy from the HST-Cosmic Origins Spectrograph show many narrow (FWHM ∼ 300 km/s) emission lines from the circumstellar ring, broad (FWHM ~ 10000-20000 km/s) emission lines from the reverse shock, and ultraviolet continuum emission. The high signal-to-noise (> 40 per...
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  6. 299. Spectroscopic modeling of SN 1987A and other Type II SNe
    Mr Anders Jerkstrand (Stockholm University)
    12/08/2011, 15:35
    Core-collapse SNe offer unique opportunities to look inside massive stars. By calculating the deposition and degradation of gamma-rays and positrons, solving the equations for statistical and thermal equilibrium, and considering the effects of multi- line radiative transfer, we produce model spectra that can be compared with observations. We apply our model to interpret the spectrum of...
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  7. 306. Herschel Detects a Massive Dust Reservoir in Supernova 1987A
    Dr Mikako Matsuura (University College London)
    12/08/2011, 16:00
    We report a surprising detection of the supernova 1987A at far-infrared and submillimetre (submm) wavelengths in 2010. As a part of the Herschel Large and Small Magellanic Cloud surveys (HERITAGE; principal investigator Margaret Meixner), the Herschel Space Observatory scanned the sky in the direction of SN 1987A, and found a faint but clear point source. The source was detected at...
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