[1003.5684] The 3-D Structure of SN 1987A’s inner Ejecta

(PDF) The 3-D structure of SN 1987A’s inner ejecta

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Integrated near-IR spectrum of the ejecta of SN 1987A inside a rectangular box with sides 0.575 and 0.825 encompassing the whole of the ejecta. The integrated area is shown in Fig. 7.

[1003.5684] The 3-D Structure of SN 1987A’s inner Ejecta

The inner ejecta are spatially resolved in a North-South direction and are clearly asymmetric. We argue that the bulk of the ejecta is situated in the same plane as defined by the equatorial ring and does not form a bipolar structure as has been suggested.

The 3-D structure of SN 1987A’s inner ejecta

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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.

Veröffentlicht in:Astronomy and Astrophysics · 2010Autoren:Karina Kjaer · Bruno Leibundgut · Claes Fransson · A Jerkstrand · Jason SpyromilioZugehörigkeit: Queen S University Belfast · Technische Universitat Munchen · Stockholm UniversityÜber:Blueshift · Stellar rotation · Radial velocity · Emission spectrum · Astronomy · Asymmetry

The 3-D Structure of SN 1987A’s inner Ejecta : K. Kjaer

Twenty years after the explosion of SN 1987A, we are now able to observe the three-dimensional spatially resolved inner ejecta. Detailed mapping of newly synthesised material and its radioactive decay daughter products sheds light on the explosion mechanism.

urn:nbn:se:su:diva-50091 : The 3-D structure of SN 1987A’s

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. Aims.

Veröffentlicht in:Astronomy and Astrophysics · 2010Autoren:Karina Kjaer · Bruno Leibundgut · Claes Fransson · A Jerkstrand · Jason SpyromilioZugehörigkeit: Queen S University Belfast · Technische Universitat Munchen · Stockholm UniversityÜber:Blueshift · Stellar rotation · Radial velocity · Emission spectrum · Astronomy · Asymmetry

Seeing a Stellar Explosion in 3D (w/ Video) – Phys.org

“We have established the velocity distribution of the inner ejecta of Supernova 1987A,” says lead author Karina Kjær. (“The 3-D Structure of SN 1987A’s inner Ejecta ring surrounding

[1003.5684v1] The 3-D Structure of SN 1987A’s inner Ejecta

The inner ejecta are spatially resolved in a North-South direction and show a clear asymmetry. We argue that the bulk of the ejecta is situated in the same plane as the equatorial ring and does not form a bipolar structure as has been suggested.

SN 1987A – Wikipedia

SN 1987A was a peculiar type II supernova in the Large Magellanic Cloud, a dwarf galaxy satellite of the Milky Way.It occurred approximately 51.4 kiloparsecs (168,000 light-years) from Earth and was the closest observed supernova since Kepler’s Supernova, visible from earth in 1604. 1987A’s light reached Earth on February 23, 1987, and as the first supernova discovered that year, was labeled

Event type: Supernova
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arXiv:1003.5684v2 [astro-ph.SR] 2 Jul 2010 – ResearchGate

structure, the outer ejecta as well as the inner ejecta (Wang et al. 2002; Wang & Wheeler 2008) and was interpreted as possibly connected to a bipolar or jet-like structure in the explosion.

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Very Deep inside the SN 1987A Core Ejecta: Molecular

deceleration of the supernova ejecta, and therefore the free expansion approximation is valid. 3. Observational Results In Figure 1, we present the CO 2−1 and SiO 5−4 emission framed by the circumstellar equatorial ring. Phenomenologi-cally, the image provides strong clues to the structure of the inner ejecta of the supernova.