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Your search keyword '"Fryer, C."' showing total 3 results
Start Over Author "Fryer, C." Publication Year Range Last 10 years Publisher american association for the advancement of science
3 results on '"Fryer, C."'

2. 44Ti gamma-ray emission lines from SN1987A reveal an asymmetric explosion.

Author

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., and Mao, P. H.

Subjects
*SUPERNOVAE, *GAMMA rays, *COMPACT objects (Astronomy), *ASTRONOMICAL observations, *REDSHIFT, *DOPPLER velocimetry, TITANIUM isotopes
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. [ABSTRACT FROM AUTHOR]

Published
2015
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3. Supernovae. ⁴⁴Ti gamma-ray emission lines from SN1987A reveal an asymmetric explosion.

Author

Boggs SE, Harrison FA, Miyasaka H, Grefenstette BW, Zoglauer A, Fryer CL, Reynolds SP, Alexander DM, An H, Barret D, Christensen FE, Craig WW, Forster K, Giommi P, Hailey CJ, Hornstrup A, Kitaguchi T, Koglin JE, Madsen KK, Mao PH, Mori K, Perri M, Pivovaroff MJ, Puccetti S, Rana V, Stern D, Westergaard NJ, and Zhang WW

Abstract

In core-collapse supernovae, titanium-44 ((44)Ti) 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 (44)Ti 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., (Copyright © 2015, American Association for the Advancement of Science.)

Published
2015
Full Text
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