Zobrazeno 1 - 10
of 3 658
pro vyhledávání: '"McSweeney, P"'
Autor:
Hurley-Walker, N., McSweeney, S. J., Bahramian, A., Rea, N., Horvath, C., Buchner, S., Williams, A., Meyers, B. W., Strader, Jay, Aydi, Elias, Urquhart, Ryan, Chomiuk, Laura, Galvin, T. J., Zelati, F. Coti, Bailes, Matthew
We present a long-period radio transient (GLEAM-X J0704-37) discovered to have an optical counterpart, consistent with a cool main sequence star of spectral type M3. The radio pulsations occur at the longest period yet found, 2.9 hours, and were disc
Externí odkaz:
http://arxiv.org/abs/2408.15757
Autor:
Caleb, M., Lenc, E., Kaplan, D. L., Murphy, T., Men, Y. P., Shannon, R. M., Ferrario, L., Rajwade, K. M., Clarke, T. E., Giacintucci, S., Hurley-Walker, N., Hyman, S. D., Lower, M. E., McSweeney, Sam, Ravi, V., Barr, E. D., Buchner, S., Flynn, C. M. L., Hessels, J. W. T., Kramer, M., Pritchard, J., Stappers, B. W.
Long-period radio transients are an emerging class of extreme astrophysical events of which only three are known. These objects emit highly polarised, coherent pulses of typically a few tens of seconds duration and minutes to hour-long periods. While
Externí odkaz:
http://arxiv.org/abs/2407.12266
Recent discoveries of multiple long-period pulsars (periods ${\sim}10\,$s or larger) are starting to challenge the conventional notion that coherent radio emission cannot be produced by objects that are below the many theorised death lines. Many of t
Externí odkaz:
http://arxiv.org/abs/2406.03806
Autor:
Grover, G., Bhat, N. D. R., McSweeney, S., Lee, C. P., Meyers, B. W., Tan, C. M., Kudale, S. S.
The phenomenon of pulsar nulling, where pulsars temporarily and stochastically cease their radio emission, is thought to be indicative of a `dying' pulsar, where radio emission ceases entirely. Here we report the discovery of a long-period pulsar, PS
Externí odkaz:
http://arxiv.org/abs/2405.16725
Autor:
Sokolowski, M., Aniruddha, G., Di Pietrantonio, C., Harris, C., Price, D. C., McSweeney, S., Wayth, R. B., Bhat, N. D. R.
Fast Radio Bursts (FRBs) are millisecond dispersed radio pulses of predominately extra-galactic origin. Although originally discovered at GHz frequencies, most FRBs have been detected between 400 to 800 MHz. Nevertheless, only a handful of FRBs were
Externí odkaz:
http://arxiv.org/abs/2405.13478
A combined radar remote sensing and in situ data set is used to track packets of nonlinear internal waves as they propagate and shoal across the inner shelf (40m - 9m). The dataset consists of high space-time resolution (5m, 2min) radar image time se
Externí odkaz:
http://arxiv.org/abs/2404.18218
Autor:
Sokolowski, M., Morrison, I. S., Price, D., Sleap, G., Crosse, B., Williams, A., Williams, L., James, C., Meyers, B. W., McSweeney, S., Bhat, N. D. R., Anderson, G.
We present a demonstration version of a commensal pipeline for Fast Radio Burst (FRB) searches using a real-time incoherent beam from the Murchison Widefield Array (MWA). The main science target of the pipeline are bright nearby FRBs from the local U
Externí odkaz:
http://arxiv.org/abs/2401.04346
Autor:
Sargeant, Chelsea A. H., Henderson, Edward G. A., McSweeney, Dónal M., Rankin, Aaron G., Page, Denis
Image synthesis is used to generate synthetic CTs (sCTs) from on-treatment cone-beam CTs (CBCTs) with a view to improving image quality and enabling accurate dose computation to facilitate a CBCT-based adaptive radiotherapy workflow. As this area of
Externí odkaz:
http://arxiv.org/abs/2312.02017
Autor:
Yang, X., Wang, L., Maxson, J., Bartnik, A., Kaemingk, M., Wan, W., Cultrera, L., Wu, L., Smaluk, V., Shaftan, T., McSweeney, S., Jing, C., Kostin, R., Zhu, Y.
Driven by life-science applications, mega-electron-volt Scanning Transmission Electron Microscope (MeV-STEM) has been proposed to image thick biological samples. The high penetration of inelastic scattering signals of MeV electrons could make the MeV
Externí odkaz:
http://arxiv.org/abs/2311.04006
Escape from a potential well occurs in a wide variety of physical systems from chemical reactions to ship capsize. In these situations escape often occurs by passage over a normally hyperbolic submanifold (NHS). This paper describes the computational
Externí odkaz:
http://arxiv.org/abs/2311.00065