S.E. Boggs
44Ti gamma-ray emission lines from SN1987A reveal an asymmetric explosion
Boggs, S.E.; Harrison, F.A.; Miyasaka, H.; Grefenstette, B.W.; Zoglauer, A.; Fryer, C.L.; Reynolds, S.P.; Alexander, D.M.; An, H.; Barret, D.; Christensen, F.E.; Craig, W.W.; Forster, K.; Giommi, P.; Hailey, C.J.; Hornstrup, A.; Kitaguchi, T.; Koglin, J.E.; Madsen, K.K.; Mao, P.H.; Mori, K.; Perri, M.; Pivovaroff, M.J.; Puccetti, S.; Rana, V.; Stern, D.; Westergaard, N.J.; Zhang, W.W.
Authors
F.A. Harrison
H. Miyasaka
B.W. Grefenstette
A. Zoglauer
C.L. Fryer
S.P. Reynolds
Professor David Alexander d.m.alexander@durham.ac.uk
Professor
H. An
D. Barret
F.E. Christensen
W.W. Craig
K. Forster
P. Giommi
C.J. Hailey
A. Hornstrup
T. Kitaguchi
J.E. Koglin
K.K. Madsen
P.H. Mao
K. Mori
M. Perri
M.J. Pivovaroff
S. Puccetti
V. Rana
D. Stern
N.J. Westergaard
W.W. Zhang
Abstract
In core-collapse supernovae, titanium-44 (44Ti) is produced in the innermost ejecta, in the layer of material directly on top of the newly formed compact object. As such, it provides a direct probe of the supernova engine. Observations of supernova 1987A (SN1987A) have resolved the 67.87- and 78.32–kilo–electron volt emission lines from decay of 44Ti produced in the supernova explosion. These lines are narrow and redshifted with a Doppler velocity of ~700 kilometers per second, direct evidence of large-scale asymmetry in the explosion.
Citation
Boggs, S., Harrison, F., Miyasaka, H., Grefenstette, B., Zoglauer, A., Fryer, C., …Zhang, W. (2015). 44Ti gamma-ray emission lines from SN1987A reveal an asymmetric explosion. Science, 348(6235), 670-671. https://doi.org/10.1126/science.aaa2259
Journal Article Type | Article |
---|---|
Acceptance Date | Apr 8, 2015 |
Publication Date | May 8, 2015 |
Deposit Date | May 15, 2015 |
Journal | Science |
Print ISSN | 0036-8075 |
Electronic ISSN | 1095-9203 |
Publisher | American Association for the Advancement of Science |
Peer Reviewed | Peer Reviewed |
Volume | 348 |
Issue | 6235 |
Pages | 670-671 |
DOI | https://doi.org/10.1126/science.aaa2259 |
Related Public URLs | http://adsabs.harvard.edu/abs/2015Sci...348..670B |
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