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Your search keyword '"Fryer, C."' showing total 2 results
Start Over Author "Fryer, C." Publisher american association for the advancement of science
2 results on '"Fryer, C."'

1. Swift and NuSTAR observations of GW170817: Detection of a blue kilonova.

Author

Evans, P. A., Cenko, S. B., Kennea, J. A., Emery, S. W. K., Kuin, N. P. M., Korobkin, O., Wollaeger, R. T., Fryer, C. L., Madsen, K. K., Harrison, F. A., Xu, Y., Nakar, E., Hotokezaka, K., Lien, A., Campana, S., Oates, S. R., Troja, E., Breeveld, A. A., Marshall, F. E., and Barthelmy, S. D.

Subjects
*GRAVITATIONAL waves, *GRAVITATIONAL fields, *NEUTRON stars, *ELECTROMAGNETIC waves, *ULTRAVIOLET spectroscopy, *X-rays, *NUCLEAR spectroscopy
Abstract

The article offers information on research about conducting ultraviolet and x-ray observations by Swift and the Nuclear Spectroscopic Telescope Array of the electromagnetic counterpart called EM170817 of the binary neutron star merger and gravitational waves called GW170817. Other information is presented about gravitational wave astrophysics.

Published
2017
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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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