DUST PRODUCTION AND PARTICLE ACCELERATION IN SUPERNOVA 1987A REVEALED WITH ALMA

By R. Indebetouw, M. Matsuura, E. Dwek, G. Zanardo, M. Barlow, Maarten Baes, P. Bouchet, D. Burrows, R. Chevalier, G. Clayton and 16 more. 2013

148 citations recorded by the source corpus.

Supernova (SN) explosions are crucial engines driving the evolution of galaxies by shock heating gas, increasing the metallicity, creating dust, and accelerating energetic particles. In 2012 we used the Atacama Large Millimeter/Submillimeter Array to observe SN 1987A, one of the best-observed supernovae since the invention of the telescope. We present spatially resolved images at 450 μm, 870 μm, 1.4 mm, and 2.8 mm, an important transition wavelength range. Longer wavelength emission is dominated by synchrotron radiation from shock-accelerated particles, shorter wavelengths by emission from the largest mass of dust measured in a supernova remnant (>0.2 M☉). For the first time we show unambiguously that this dust has formed in the inner ejecta (the cold remnants of the exploded star's core). The dust emission is concentrated at the center of the remnant, so the dust has not yet been affected by the shocks. If a significant fraction survives, and if SN 1987A is typical, supernovae are important cosmological dust producers.

Subfields: Astronomy and Astrophysics, Instrumentation, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/dc095835b4be808c6ae734ca2c7a1d2872122b91

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In Astronomy and Astrophysics

1. T. Okamoto
2. I. Shimizu
3. K. Kohno
4. T. Hashimoto
5. Y. Tamura
6. Yoshiaki Taniguchi
7. Naoki Yoshida
8. A. Inoue

In Instrumentation

1. I. Shimizu
2. T. Okamoto
3. K. Kohno
4. Y. Tamura
5. Yoshiaki Taniguchi
6. Naoki Yoshida
7. A. Inoue
8. Y. Matsuda

In Nuclear and High Energy Physics

1. Yoshiaki Taniguchi
2. Naoki Yoshida
3. Kentarou Mawatari
4. T. Shibuya
5. T. Okamoto

Citations in the corpus

• Detection of the Far-infrared [O iii] and Dust Emission in a Galaxy at Redshift 8.312: Early Metal Enrichment in the Heart of the Reionization Era (2018, background): “…explain the high dust yield (e.g., Dunne et al. 2003, 2009; Barlow et al. 2010; Matsuura et al. 2011, 2015; Gomez et al. 2012; Temim & Dwek 2013; Indebetouw et al. 2014; De Looze et al. 2017), although the other SNRs typically have much smaller dust masses of 10−3– - ☉M10 2 (Michałowski 2015,…”