Browsing Research publications by Author "Hurley-Walker, Natasha"

Now showing items 1-5 of 5

    • GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey I : A low-frequency extragalactic catalogue 

      Hurley-Walker, Natasha; Callingham, Joseph R.; Hancock, Paul J.; Franzen, Thomas M. O.; Hindson, Luke; Kapinska, Anna D.; Morgan, John; Offringa, Andre R.; Wayth, Randall B.; Wu, Chen; Zheng, Q.; Murphy, Tara; Bell, Martin E.; Dwarakanath, K. S.; For, Bi-Qing; Gaensler, Bryan M.; Johnston-Hollitt, Melanie; Lenc, Emil; Procopio, Pietro; Staveley-Smith, Lister; Ekers, Ron; Bowman, Judd D.; Briggs, Frank; Cappallo, R. J.; Deshpande, Avinash A.; Greenhill, Lincoln; Hazelton, Brynah J.; Kaplan, David L.; Lonsdale, Colin J.; McWhirter, S. R.; Mitchell, Daniel A.; Morales, Miguel F.; Morgan, Edward; Oberoi, Divya; Ord, Stephen M.; Prabu, T.; Shankar, N. Udaya; Srivani, K. S.; Subrahmanyan, Ravi; Tingay, Steven J.; Webster, Rachel L.; Williams, Andrew; Williams, Christopher L. (2017-01-01)
      Using the Murchison Widefield Array (MWA), the low-frequency Square Kilometre Array (SKA1 LOW) precursor located in Western Australia, we have completed the GaLactic and Extragalactic All-sky MWA (GLEAM) survey, and present ...

    • Long-period Radio Pulsars: Population Study in the Neutron Star and White Dwarf Rotating Dipole Scenarios 

      Rea, Nanda; Hurley-Walker, Natasha; Pardo-Araujo, Celsa; Ronchi, Michele; Graber, Vanessa; Zelati, Francesco Coti; Martino, Domitilla De; Bahramian, Arash; McSweeney, Sam J.; Galvin, Tim J.; Hyman, Scott D.; Dall'Ora, M. (2024-02-01)
      The nature of two recently discovered radio emitters with unusually long periods of 18min (GLEAM-X J1627-52) and 21min (GPM J1839-10) is highly debated. Their bright radio emission resembles that of radio magnetars, but ...

    • The Murchison Widefield Array Commissioning Survey : A Low-Frequency Catalogue of 14,110 Compact Radio Sources over 6,100 Square Degrees 

      Hurley-Walker, Natasha; Morgan, John; Wayth, Randall B.; Hancock, Paul J.; Bell, Martin E.; Bernardi, Gianni; Bhat, Ramesh; Briggs, Frank; Deshpande, Avinash A.; Ewall-Wice, Aaron; Feng, Lu; Hazelton, Bryna J.; Hindson, Luke; Jacobs, Daniel C.; Kudryavtseva, David L. Kaplan Nadia; Lenc, Emil; McKinley, Benjamin; Mitchell, Daniel; Pindor, Bart; Procopio, Pietro; Oberoi, Divya; Offringa, André; Ord, Stephen; Riding, Jennifer; Bowman, Judd D.; Cappallo, Roger; Corey, Brian; Emrich, David; Gaensler, B. M.; Goeke, Robert; Greenhill, Lincoln; Hewitt, Jacqueline; Johnston-Hollitt, Melanie; Kasper, Justin; Kratzenberg, Eric; Lonsdale, Colin; Lynch, Mervyn; McWhirter, Russell; Morales, Miguel F.; Morgan, Edward; Prabu, Thiagaraj; Rogers, Alan; Roshi, Anish; Shankar, Udaya; Srivani, K.; Subrahmanyan, Ravi; Tingay, Steven; Waterson, Mark; Webster, Rachel; Whitney, Alan; Williams, Andrew; Williams, Chris (2014-11-14)
      We present the results of an approximately 6,100 square degree 104--196MHz radio sky survey performed with the Murchison Widefield Array during instrument commissioning between 2012 September and 2012 December: the Murchison ...

    • A search for long-timescale, low-frequency radio transients 

      Murphy, Tara; Kaplan, David L.; Croft, Steve; Lynch, Christene; Callingham, J. R.; Bannister, Keith; Bell, Martin E.; Hurley-Walker, Natasha; Hancock, Paul; Line, Jack; Rowlinson, Antonia; Lenc, Emil; Intema, H. T.; Jagannathan, P.; Ekers, Ronald D.; Tingay, Steven; Yuan, Fang; Wolf, Christian; Onken, Christopher A.; Dwarakanath, K. S.; For, B. -Q.; Gaensler, B. M.; Hindson, L.; Johnston-Hollitt, M.; Kapinska, A. D.; McKinley, B.; Morgan, J.; Offringa, A. R.; Procopio, P.; Staveley-Smith, L.; Wayth, R.; Wu, C.; Zheng, Q. (2017-04-11)
      We present a search for transient and highly variable sources at low radio frequencies (150-200 MHz) that explores long timescales of 1-3 years. We conducted this search by comparing the TIFR GMRT Sky Survey Alternative ...

    • Serendipitous discovery of a dying Giant Radio Galaxy associated with NGC 1534, using the Murchison Widefield Array 

      Hurley-Walker, Natasha; Johnston-Hollitt, Melanie; Ekers, Ron; Hunstead, Richard; Sadler, Elaine M.; Hindson, Luke; Hancock, Paul; Bernardi, Gianni; Bowman, Judd D.; Briggs, Frank; Cappallo, Roger; Corey, Brian; Deshpande, Avinash A.; Emrich, David; Gaensler, Bryan M.; Goeke, Robert; Greenhill, Lincoln; Hazelton, Bryna J.; Hewitt, Jacqueline; Kaplan, David L.; Kasper, Justin; Kratzenberg, Eric; Lonsdale, Colin; Lynch, Mervyn; Mitchell, Daniel; McWhirter, Russell; Morales, Miguel; Morgan, Edward; Oberoi, Divya; Offringa, Andre; Ord, Stephen; Prabu, Thiagaraj; Rogers, Alan; Roshi, Anish; Shankar, Udaya; Srivani, K.; Subrahmanyan, Ravi; Tingay, Steven; Waterson, Mark; Wayth, Randall B.; Webster, Rachel; Whitney, Alan; Williams, Andrew; Williams, Chris (2015-03-01)
      Recent observations with the Murchison Widefield Array at 185~MHz have serendipitously unveiled a heretofore unknown giant and relatively nearby ($z = 0.0178$) radio galaxy associated with NGC\,1534. The diffuse emission ...