Zobrazeno 1 - 10
of 1 381
pro vyhledávání: '"Beard M."'
Autor:
Sourabh, S., Afshari, H., Whiteside, V. R., Eperon, G. E., Scheidt, R. A., Creason, T. D., Furis, M., Kirmani, A., Saparov, B., Luther, J. M., Beard, M. C., Sellers, I. R.
The presence of hot carriers is presented in the operational properties of an (FA,Cs)Pb(I, Br, Cl)3 solar cell at ambient temperatures and under practical solar concentration. At 100 K, clear evidence of hot carriers is observed in both the high ener
Externí odkaz:
http://arxiv.org/abs/2311.08294
Autor:
Jain, R., Brown, E. F., Schatz, H., Afanasjev, A. V., Beard, M., Gasques, L. R., Gupta, S. S., Hitt, G. W., Hix, W. R., Lau, R., Moller, P., Ong, W. J., Wiescher, M., Xu, Y.
Publikováno v:
ApJ 955 51 (2023)
The observation of X-rays during quiescence from transiently accreting neutron stars provides unique clues about the nature of dense matter. This, however, requires extensive modeling of the crusts and matching the results to observations. The pycnon
Externí odkaz:
http://arxiv.org/abs/2306.12451
We present the results regarding the analysis of an intensive monitoring of the Active Galactic Nucleus (AGN) NGC 7469. We observed the source for 4 months with almost daily cadence in the ugriz bands, using the IO:O on the Liverpool Telescope. We me
Externí odkaz:
http://arxiv.org/abs/2302.09152
Autor:
McHardy, I. M., Beard, M., Breedt, E., Knapen, J. H., Vincentelli, F. M., Veresvarska, M., Dhillon, V. S., Marsh, T. R., Littlefair, S. P., Horne, K., Glew, R., Goad, M. R., Kammoun, E., Emmanoulopoulos, D.
We present fast (~200s sampling) ugriz photometry of the low mass AGN NGC 4395 with the Liverpool Telescope, followed by very fast (3s sampling) us, gs, rs, is and zs simultaneous monitoring with HiPERCAM on the 10.4m GTC. These observations provide
Externí odkaz:
http://arxiv.org/abs/2212.08015
Autor:
Fang X., Tan W. P., Beard M., deBoer R. J., Gilardy G., Jung H., Liu Q., Lyons S., Robertson D., Setoodehnia K., Seymour C., Stech E., Vande Kolk B., Wiescher M., de Souza R., Hudan S., Singh V., Tang X. D., Uberseder E.
Publikováno v:
EPJ Web of Conferences, Vol 178, p 04008 (2018)
The total cross sections of the 12C+16O fusion have been experimentally determined at low energies to investigate the role of this reaction during late stellar evolution burning phases. A high-intensity oxygen beam was produced by the 5MV pelletron a
Externí odkaz:
https://doaj.org/article/53d5083c493e4690b3bf7b07b9007718
Autor:
Tang X.D., Bucher B., Fang X., Heger A., Almaraz-Calderon S., Alongi A., Ayangeakaa A.D., Beard M., Best A., Browne J., Cahillane C., Couder M., deBoer R.J., Kontos A., Lamm L., Li Y.J., Long A., Lu W., Lyons S., Notani M., Patel D., Paul N., Pignatari M., Roberts A., Robertson D., Smith K., Stech E., Talwar R., Tan W.P., Wiescher M., Woosley S.E.
Publikováno v:
EPJ Web of Conferences, Vol 109, p 04009 (2016)
Neutrons produced by the carbon fusion reaction 12C(12C,n)23Mg play an important role in stellar nucleosynthesis. Past studies have shown large discrepancies between experimental data and theory, leading to an uncertain cross section extrapolation at
Externí odkaz:
https://doaj.org/article/9f96780fe57743a48ba5a8530304ae81
Publikováno v:
EPJ Web of Conferences, Vol 93, p 04002 (2015)
A pronounced spike at low energy in the strength function for magnetic radiation (LEMAR) is found by means of Shell Model calculations, which explains the experimentally observed enhancement of the dipole strength. LEMAR originates from statistical l
Externí odkaz:
https://doaj.org/article/977e902c61d844c0a2aa326fdc429a53
Autor:
Bucher B., Fang X., Tang X.D., Tan W.P., Almaraz-Calderon S., Alongi A., Ayangeakaa A.D., Beard M., Best A., Browne J., Cahillane C., Couder M., Dahlstrom E., Davies P., deBoer R., Kontos A., Lamm L., Long A., Lu W., Lyons S., Ma C., Moncion A., Notani M., Patel D., Paul N., Pignatari M., Roberts A., Robertson D., Smith K., Stech E., Talwar R., Thomas S., Wiescher M.
Publikováno v:
EPJ Web of Conferences, Vol 93, p 03009 (2015)
The 12C+12C reaction is one of the single most important nuclear reactions in astrophysics. It strongly influences late evolution of massive stars as well as the dynamics of type Ia supernovae and x-ray superbursts. An accurate estimation of the cros
Externí odkaz:
https://doaj.org/article/df86bd35775a4bf5ad7b568dfcc8aaad
Autor:
Sourabh, S., Whiteside, V. R., Zhai, Y., Wang, K., Yeddu, V., Bamidele, M. T., Kim, D. Y., Beard, M. C., Sellers, I. R.
Publikováno v:
Phys. Rev. Materials 5, 095402 (2021)
Temperature dependent (4K-300K) photoluminescence and transmission spectra are analyzed to study the effect of changing the different components of a perovskite compound, be it A, B, or X. Four different films are compared: FAMAPbSnI3, FAPbI3, FAMAPb
Externí odkaz:
http://arxiv.org/abs/2103.02570
Multimessenger observations of the neutron star merger event GW170817 have re-energized the debate over the astrophysical origins of the most massive elements via the r-process nucleosynthesis. A key aspect of such studies is comparing astronomical o
Externí odkaz:
http://arxiv.org/abs/2010.01698