Zobrazeno 1 - 10
of 497
pro vyhledávání: '"Hurley-Walker, N."'
Autor:
Ross, K., Hurley-Walker, N., Galvin, T. J., Venville, B., Duchesne, S. W., Morgan, J., An, T., Gurkan, G., Hancock, P. J., Heald, G., Johnston-Hollitt, M., White, S. V.
We present the second data release for the GaLactic and Extragalactic All-sky Murchison Widefield Array eXtended (GLEAM-X) survey. This data release is an area of 12,892-deg^2 around the South Galactic Pole region covering 20h 40m <= RA <= 6h 40m, -9
Externí odkaz:
http://arxiv.org/abs/2406.06921
Autor:
Mantovanini, S., Becker, W., Khokhriakova, A., Hurley-Walker, N., Anderson, G. E., Nicastro, L.
Detecting a supernova remnant (SNR) along the Galactic plane can be quite challenging. Any new detection reduces the discrepancy between the expected and known number of remnants. In this paper, we present results from a large selection of radio and
Externí odkaz:
http://arxiv.org/abs/2401.17294
Spectral variability offers a new technique to identify small scale structures from scintillation, as well as determining the absorption mechanism for peaked-spectrum (PS) radio sources. In this paper, we present very long baseline interferometry (VL
Externí odkaz:
http://arxiv.org/abs/2301.00977
Autor:
Rea, N., Zelati, F. Coti, Dehman, C., Hurley-Walker, N., De Martino, D., Bahramian, A., Buckley, D. A. H., Brink, J., Kawka, A., Pons, J. A., Vigano, D., Graber, V., Ronchi, M., Pardo, C., Borghese, A., Parent, E.
We observed the periodic radio transient GLEAM-X J162759.5-523504.3 (GLEAM-X J1627) using the Chandra X-ray Observatory for about 30-ks on January 22-23, 2022, simultaneously with radio observations from MWA, MeerKAT and ATCA. Its radio emission and
Externí odkaz:
http://arxiv.org/abs/2210.01903
Autor:
Tian, J., Anderson, G. E., Hancock, P. J., Miller-Jones, J. C. A., Sokolowski, M., Swainston, N. A., Rowlinson, A., Williams, A., Kaplan, D. L., Hurley-Walker, N., Morgan, J., Bhat, N. D. R., Ung, D., Tingay, S., Bannister, K. W., Bell, M. E., Meyers, B. W., Walker, M.
We present a low-frequency (170\textendash200\,MHz) search for prompt radio emission associated with the long GRB 210419A using the rapid-response mode of the Murchison Widefield Array (MWA), triggering observations with the Voltage Capture System (V
Externí odkaz:
http://arxiv.org/abs/2205.13263
Autor:
Quici, B., Turner, R. J., Seymour, N., Hurley-Walker, N., Shabala, S. S., Ishwara-Chandra, C. H.
Quantifying the energetics and lifetimes of remnant radio-loud active galactic nuclei (AGNs) is much more challenging than for active sources due to the added complexity of accurately determining the time since the central black hole switched off. In
Externí odkaz:
http://arxiv.org/abs/2205.02423
Autor:
Broderick, J. W., Drouart, G., Seymour, N., Galvin, T. J., Wright, N., Rosell, A. Carnero, Chhetri, R., Dannerbauer, H., Driver, S. P., Morgan, J. S., Moss, V. A., Prabu, S., Afonso, J. M., De Breuck, C., Emonts, B. H. C., Franzen, T. M. O., Gutiérrez, C. M., Hancock, P. J., Heald, G. H., Hurley-Walker, N., Ivison, R. J., Lehnert, M. D., Noirot, G., Read, M., Shabala, S. S., Stern, D., Sutherland, W. J., Sutorius, E., Turner, R. J., Vernet, J.
While unobscured and radio-quiet active galactic nuclei are regularly being found at redshifts $z > 6$, their obscured and radio-loud counterparts remain elusive. We build upon our successful pilot study, presenting a new sample of low-frequency-sele
Externí odkaz:
http://arxiv.org/abs/2204.08490
Autor:
Ross, K., Hurley-Walker, N., Seymour, N., Callingham, J. R., Galvin, T. J., Johnston-Hollitt, M.
Characterising spectral variability of radio sources is a technique that offers the ability to determine the astrophysics of the intervening media, source structure, emission and absorption processes. We present broadband (0.072--10 GHz) spectral var
Externí odkaz:
http://arxiv.org/abs/2203.11466
Autor:
Filipović, Miroslav D., Payne, J. L., Alsaberi, R. Z. E., Norris, R. P., Macgregor, P. J., Rudnick, L., Koribalski, B. S., Leahy, D., Ducci, L., Kothes, R., Andernach, H., Barnes, L., Bojičić, I. S., Bozzetto, L. M., Brose, R., Collier, J. D., Crawford, E. J., Crocker, R. M., Dai, S., Galvin, T. J., Haberl, F., Heber, U., Hill, T., Hopkins, A. M., Hurley-Walker, N., Ingallinera, A., Jarrett, T., Kavanagh, P. J., Lenc, E., Luken, K. J., Mackey, D., Manojlović, P., Maggi, P., Maitra, C., Pennock, C. M., Points, S., Riggi, S., Rowell, G., Safi-Harb, S., Sano, H., Sasaki, M., Shabala, S., Stevens, J., van Loon, J. Th., Tothill, N. F. H., Umana, G., Urošević, D., Velović, V., Vernstrom, T., West, J. L., Wan, Z.
We report the discovery of J0624-6948, a low-surface brightness radio ring, lying between the Galactic Plane and the Large Magellanic Cloud (LMC). It was first detected at 888 MHz with the Australian Square Kilometre Array Pathfinder (ASKAP), and wit
Externí odkaz:
http://arxiv.org/abs/2201.10026
Autor:
Tian, J., Anderson, G. E., Hancock, P. J., Miller-Jones, J. C. A., Sokolowski, M., Rowlinson, A., Williams, A., Morgan, J., Hurley-Walker, N., Kaplan, D. L., Murphy, Tara, Tingay, S. J., Johnston-Hollitt, M., Bannister, K. W., Bell, M. E., Meyers, B. W.
Here we present a low frequency (170-200MHz) search for coherent radio emission associated with nine short GRBs detected by the Swift and/or Fermi satellites using the Murchison Widefield Array (MWA) rapid-response observing mode. The MWA began obser
Externí odkaz:
http://arxiv.org/abs/2111.14391