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pro vyhledávání: '"Sokolowski, M"'
The Vela pulsar (J0835-4510) is known to exhibit variations in Faraday rotation and dispersion on multi-decade timescales due to the changing sightline through the surrounding Vela supernova remnant and the Gum Nebula. Until now, variations in Farada
Externí odkaz:
http://arxiv.org/abs/2411.00602
Publikováno v:
Publ. Astron. Soc. Aust. 41 (2024) e045
Traditional pulsar surveys have primarily employed time-domain periodicity searches. However, these methods are susceptible to effects like scattering, eclipses and orbital motion. At lower radio frequencies (<= 300 MHz), factors such as dispersion m
Externí odkaz:
http://arxiv.org/abs/2407.13282
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
Autor:
Luo, R., Ekers, R. D., Hobbs, G., Dunning, A., James, C. W., Lower, M. E., Gupta, V., Zic, A., Sokolowski, M., Phillips, C., Deller, A. T., Staveley-Smith, L.
Fast Radio Bursts (FRBs) are short-duration radio transients that occur at random times in host galaxies distributed all over the sky. Large field of view instruments can play a critical role in the blind search for rare FRBs. We present a concept fo
Externí odkaz:
http://arxiv.org/abs/2405.07439
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:
Tian, J., Anderson, G. E., Cooper, A. J., Gourdji, K., Sokolowski, M., Rowlinson, A., Williams, A., Sleap, G., Dobie, D., Kaplan, D. L., Murphy, Tara, Tingay, S. J., Panther, F. H., Lasky, P. D., Bahramian, A., Miller-Jones, J. C. A., James, C. W., Meyers, B. W., McSweeney, S. J., Hancock, P. J.
We present and evaluate the prospects for detecting coherent radio counterparts to gravitational wave (GW) events using Murchison Widefield Array (MWA) triggered observations. The MWA rapid-response system, combined with its buffering mode ($\sim4$ m
Externí odkaz:
http://arxiv.org/abs/2309.16383
Autor:
Bhat, N. D. R., Swainston, N. A., McSweeney, S. J., Xue, M., Meyers, B. W., Kudale, S., Dai, S., Tremblay, S. E., van Straten, W., Shannon, R. M., Smith, K. R., Sokolowski, M., Ord, S. M., Sleap, G., Williams, A., Hancock, P. J., Lange, R., Tocknell, J., Johnston-Hollitt, M., Kaplan, D. L., Tingay, S. J., Walker, M.
In Paper I, we presented an overview of the Southern-sky MWA Rapid Two-metre (SMART) survey, including the survey design and search pipeline. While the combination of MWA's large field-of-view and the voltage capture system brings a survey speed of ~
Externí odkaz:
http://arxiv.org/abs/2302.11920
Autor:
Bhat, N. D. R., Swainston, N. A., McSweeney, S. J., Xue, M., Meyers, B. W., Kudale, S., Dai, S., Tremblay, S. E., van Straten, W., Shannon, R. M., Smith, K. R., Sokolowski, M., Ord, S. M., Sleap, G., Williams, A., Hancock, P. J., Lange, R., Tocknell, J., Johnston-Hollitt, M., Kaplan, D. L., Tingay, S. J., Walker, M.
We present an overview of the Southern-sky MWA Rapid Two-metre (SMART) pulsar survey that exploits the MWA's large field of view and voltage capture system to survey the sky south of 30 degree in declination for pulsars and fast transients in the 140
Externí odkaz:
http://arxiv.org/abs/2302.11911
Pulsars have proven instrumental in exploring a wide variety of physics. Pulsars at low radio frequencies is crucial to further our understanding of spectral properties and emission mechanisms.The Murchison Widefield Array Voltage Capture System (MWA
Externí odkaz:
http://arxiv.org/abs/2212.06982
Autor:
Tian, J., Anderson, G. E., Hancock, P. J., Miller-Jones, J. C. A., Sokolowski, M., James, C. W., Bhat, N. D. R., Swainston, N. A., Ung, D., Meyers, B. W.
We present a targeted search for low-frequency (144--215\,MHz) FRB emission from five repeating FRBs using 23.3\,hr of archival data taken with the Murchison Widefield Array (MWA) Voltage Capture System (VCS) between 2014 September and 2020 May. This
Externí odkaz:
http://arxiv.org/abs/2211.11945