Search

Your search keyword '"Murphy, StJ A.S.J."' showing total 4 results
Start Over Author "Murphy, StJ A.S.J."
4 results on '"Murphy, StJ A.S.J."'

1. Advancement of Photospheric Radius Expansion and Clocked Type-I X-Ray Burst Models with the New Reaction Rate Determined at the Gamow Energy

Author

Hu, Jun, Yamaguchi, Hikaru, Lam, Y.H., Heger, Alexander, Kahl, Daid, Jacobs, A.M., Johnston, Zac, Xu, Shiwei S.W., Zhang, Ningtao N.T., Ma, Shaobo S.B., Ru, L.H., Liu, Enqiang E.Q., Liu, Tong, Hayakawa, Seiya, Yang, Lei, Shimizu, Hiroki, Hamill, C.B., Murphy, StJ A.S.J., Su, Jun, Fang, Xiao, Chae, K.Y., Kwag, Minsik M.S., Cha, Soomi S.M., Duy, Nguyen Ngoc, Uyen, Nguyen Kim, Kim, Dae-hwan, Pizzone, Rosario Gianluca, La Cognata, M., Cherubini, Silvio, Romano, Stefano, Tumino, Aurora, Liang, J., Psaltis, Athanasios, Sferrazza, Michele, Kim, Duhyun, Li, Yanyan Y.Y., Kubono, Shigeru, Hu, Jun, Yamaguchi, Hikaru, Lam, Y.H., Heger, Alexander, Kahl, Daid, Jacobs, A.M., Johnston, Zac, Xu, Shiwei S.W., Zhang, Ningtao N.T., Ma, Shaobo S.B., Ru, L.H., Liu, Enqiang E.Q., Liu, Tong, Hayakawa, Seiya, Yang, Lei, Shimizu, Hiroki, Hamill, C.B., Murphy, StJ A.S.J., Su, Jun, Fang, Xiao, Chae, K.Y., Kwag, Minsik M.S., Cha, Soomi S.M., Duy, Nguyen Ngoc, Uyen, Nguyen Kim, Kim, Dae-hwan, Pizzone, Rosario Gianluca, La Cognata, M., Cherubini, Silvio, Romano, Stefano, Tumino, Aurora, Liang, J., Psaltis, Athanasios, Sferrazza, Michele, Kim, Duhyun, Li, Yanyan Y.Y., and Kubono, Shigeru

Abstract

We report the first (in)elastic scattering measurement of with the capability to select and measure in a broad energy range the proton resonances in contributing to the reaction at type I x-ray burst energies. We measured spin-parities of four resonances above the threshold of that are found to strongly impact the rate. The new rate advances a state-of-the-art model to remarkably reproduce light curves of the GS clocked burster with mean deviation and permits us to discover a strong correlation between the He abundance in the accreting envelope of the photospheric radius expansion burster and the dominance of branch., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2021

2. This title is unavailable for guests, please login to see more information.

Author

Mountford, D.J. D.J., Murphy, StJ A.S.J., Deboer, R.J., Uberseder, Ethan, Wiescher, Michael, Descouvemont, Pierre, Mountford, D.J. D.J., Murphy, StJ A.S.J., Deboer, R.J., Uberseder, Ethan, Wiescher, Michael, and Descouvemont, Pierre

Abstract

SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2014

3. This title is unavailable for guests, please login to see more information.

Author

Mountford, D.J. D.J., Murphy, StJ A.S.J., Davinson, Thomas, Woods, Ph P.J., Achouri, N. L., Angulo Perez, Carmen, Brown, Jonathan R D J.R., Laird, Alison, de Oliveira Santos, François, Kamalou, Omar, Ujic, Predrag, de Séréville, Nicolas, Descouvemont, Pierre, Pittman, S.T. S.T., Mountford, D.J. D.J., Murphy, StJ A.S.J., Davinson, Thomas, Woods, Ph P.J., Achouri, N. L., Angulo Perez, Carmen, Brown, Jonathan R D J.R., Laird, Alison, de Oliveira Santos, François, Kamalou, Omar, Ujic, Predrag, de Séréville, Nicolas, Descouvemont, Pierre, and Pittman, S.T. S.T.

Abstract

SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2012

4. Resonances in 19Ne with relevance to the astrophysically important 18F(p,α)15O reaction

Author

Mountford, D.J. D.J., Kamalou, Omar, Ujic, Predrag, de Séréville, Nicolas, Descouvemont, Pierre, Pittman, S.T. S.T., Murphy, StJ A.S.J., Davinson, Thomas, Woods, Ph P.J., Achouri, N. L., Angulo Perez, Carmen, Brown, Jonathan R D J.R., Laird, Alison, de Oliveira Santos, François, Mountford, D.J. D.J., Kamalou, Omar, Ujic, Predrag, de Séréville, Nicolas, Descouvemont, Pierre, Pittman, S.T. S.T., Murphy, StJ A.S.J., Davinson, Thomas, Woods, Ph P.J., Achouri, N. L., Angulo Perez, Carmen, Brown, Jonathan R D J.R., Laird, Alison, and de Oliveira Santos, François

Abstract

The main source of gamma ray emission from novae below 511 keV is likely to be associated with the β+ decay of 18F. The main uncertainty in the abundance of this nucleus comes from the 18F(p,α)15O reaction. In 2006, through microscopic techniques, two previously unseen energy levels in the compound 19Ne nucleus, at 6 and 7.9 MeV were proposed by Dufour and Descouvemont. In light of this there have been two published attempts in the search for the higher of these states, by Murphy et al. and Dalouzy et al. The aim of this work is to address the contradiction between these works and come to a conclusion as to the possible existence of this state. An experiment has taken place that utilised a 4 MeV/u 18F beam, degraded to ∼1.9 MeV/u, incident upon a thick CH2 target. The data has been analysed within the R-matrix formalism and preliminary results are presented here., SCOPUS: cp.p, info:eu-repo/semantics/published

Published
2011

Catalog

Books, media, physical & digital resources
See catalog results