Zobrazeno 1 - 10
of 5 618
pro vyhledávání: '"Johnston, S. A."'
Autor:
Chernyakova, M., Malyshev, D., van Soelen, B., Gallagher, A. Finn, Matchett, N., Russell, T. D., Eijnden, J. van den, Lower, M. E., Johnston, S., Tsygankov, S., Salganik, A., Shebalkova, Iu.
PSR B1259-63 is a gamma-ray binary system with a 48 ms radio pulsar orbiting around an O9.5Ve star, LS 2883, in a highly eccentric ~3.4 yr long orbit. Close to the periastron the system is detected from radio up to the TeV energies due to the interac
Externí odkaz:
http://arxiv.org/abs/2411.02128
Understanding quantum materials -- solids in which quantum-mechanical interactions among constituent electrons yield a great variety of novel emergent phenomena -- is a forefront challenge in modern condensed matter physics. This goal has driven the
Externí odkaz:
http://arxiv.org/abs/2410.13062
Autor:
Lower, M. E., Kramer, M., Johnston, S., Breton, R. P., Wex, N., Bailes, M., Buchner, S., Camilo, F., Oswald, L. S., Reardon, D. J., Shannon, R. M., Serylak, M., Krishnan, V. Venkatraman
PSR J0737$-$3039A/B is unique among double neutron star systems. Its near-perfect edge-on orbit causes the fast spinning pulsar A to be eclipsed by the magnetic field of the slow spinning pulsar B. Using high-sensitivity MeerKAT radio observations co
Externí odkaz:
http://arxiv.org/abs/2410.12510
Autor:
Trudu, M., Possenti, A., Pilia, M., Bailes, M., Keane, E. F., Kramer, M., Balakrishnan, V., Bhandari, S., Bhat, N. D. R., Burgay, M., Cameron, A., Champion, D. J., Jameson, A., Johnston, S., Keith, M. J., Levin, L., Ng, C., Sengar, R., Tiburzi, C.
Publikováno v:
A&A 690, A204 (2024)
Current observational evidence reveals that fast radio bursts (FRBs) exhibit bandwidths ranging from a few dozen MHz to several GHz. Traditional FRB searches primarily employ matched filter methods on time series collapsed across the entire observati
Externí odkaz:
http://arxiv.org/abs/2408.14384
We use data from the MeerTime project on the MeerKAT telescope to ask whether the radio emission properties of millisecond pulsars (MSPs) and slowly rotating, younger pulsars (SPs) are similar or different. We show that the flux density spectra of bo
Externí odkaz:
http://arxiv.org/abs/2407.06836
The high-temperature superconducting cuprates host unidirectional spin- and charge-density-wave orders that can intertwine with superconductivity in non-trivial ways. While the charge components of these stripes have now been observed in nearly all c
Externí odkaz:
http://arxiv.org/abs/2405.13164
Autor:
He, W., Shen, Y., Wohlfeld, K., Sears, J., Li, J., Pelliciari, J., Walicki, M., Johnston, S., Baldini, E., Bisogni, V., Mitrano, M., Dean, M. P. M.
Publikováno v:
Nature Communications 15, 3496 (2024)
Magnetic van der Waals (vdW) materials have opened new frontiers for realizing novel many-body phenomena. Recently NiPS3 has received intense interest since it hosts an excitonic quasiparticle whose properties appear to be intimately linked to the ma
Externí odkaz:
http://arxiv.org/abs/2404.10827
Autor:
Keith, M. J., Johnston, S., Karastergiou, A., Weltevrede, P., Lower, M. E., Basu, A., Posselt, B., Oswald, L. S., Parthasarathy, A., Cameron, A. D., Serylak, M., Buchner, S.
We report here on the timing of 597 pulsars over the last four years with the MeerKAT telescope. We provide Times-of-Arrival, pulsar ephemeris files and per-epoch measurements of the flux density, dispersion measure (DM) and rotation measure (RM) for
Externí odkaz:
http://arxiv.org/abs/2404.02051
Autor:
Basu, A., Weltevrede, P., Keith, M. J., Johnston, S., Karastergiou, A., Oswald, L. S., Posselt, B., Song, X., Cameron, A. D.
A number of pulsars are known to have profile evolution on timescales of months, often correlated with spin-down rate changes. Here, we present the first result from 3 years of monitoring observations from MeerKAT as part of the Thousand Pulsar Array
Externí odkaz:
http://arxiv.org/abs/2402.09065
Autor:
Lower, M. E., Kramer, M., Shannon, R. M., Breton, R. P., Wex, N., Johnston, S., Bailes, M., Buchner, S., Hu, H., Krishnan, V. Venkatraman, Blackmon, V. A., Camilo, F., Champion, D. J., Freire, P. C. C., Geyer, M., Karastergiou, A., van Leeuwen, J., McLaughlin, M. A., Reardon, D. J., Stairs, I. H.
Publikováno v:
A&A 682, A26 (2024)
The double pulsar system, PSR J0737$-$3039A/B, consists of two neutron stars bound together in a highly relativistic orbit that is viewed nearly edge-on from the Earth. This alignment results in brief radio eclipses of the fast-rotating pulsar A when
Externí odkaz:
http://arxiv.org/abs/2311.06445