Zobrazeno 1 - 10
of 3 482
pro vyhledávání: '"ASKAP"'
Next generations of radio surveys are expected to identify tens of millions of new sources, and identifying and classifying their morphologies will require novel and more efficient methods. Self-Organising Maps (SOMs), a type of unsupervised machine
Externí odkaz:
http://arxiv.org/abs/2412.10183
We present and discuss two catalogues of UV-selected (NUV $< 22.8$ mag) galaxies that lie within a 200 deg$^2$ area of sky covered by the ASKAP FLASH survey and have an impact parameter of less than 20 arcsec to a FLASH radio continuum source. These
Externí odkaz:
http://arxiv.org/abs/2411.09443
Autor:
Shannon, R. M., Bannister, K. W., Bera, A., Bhandari, S., Day, C. K., Deller, A. T., Dial, T., Dobie, D., Ekers, R. D., Fong, W. -f., Glowacki, M., Gordon, A. C., Gourdji, K., Jaini, A., James, C. W., Kumar, P., Mahony, E. K., Marnoch, L., Muller, A. R., Prochaska, J. X., Qiu, H., Ryder, S. D., Sadler, E. M., Scott, D. R., Tejos, N., Uttarkar, P. A., Wang, Y.
With wide-field phased array feed technology, the Australian Square Kilometre Array Pathfinder (ASKAP) is ideally suited to search for seemingly rare radio transient sources. The Commensal Real-time ASKAP Fast Transient (CRAFT) Survey Science Project
Externí odkaz:
http://arxiv.org/abs/2408.02083
Autor:
Anumarlapudi, Akash, Dobie, Dougal, Kaplan, David L., Murphy, Tara, Horesh, Assaf, Lenc, Emil, Driessen, Laura N., Duchesne, Stefan W., Dykaar, Ms. Hannah, Gaensler, Bryan M., Galvin, Timothy J., Grundy, J. A., Heald, George, Hotan, Aidan, Huynh, Minh, Leung, James, McConnell, David, Moss, Vanessa A., Pritchard, Joshua, Raja, Wasim, Rose, Kovi, Sivakoff, Gregory R., Wang, Yuanming, Wang, Ziteng, Wieringa, Mark, Whiting, M. T.
Late-time ($\sim$ year) radio follow-up of optically-discovered tidal disruption events (TDEs) is increasingly resulting in detections at radio wavelengths, and there is growing evidence for this late-time radio activity to be common to the broad cla
Externí odkaz:
http://arxiv.org/abs/2407.12097
Autor:
Nguyen, Hiep, McClure-Griffiths, N. M., Dempsey, James, Dickey, John M., Lee, Min-Young, Lynn, Callum, Murray, Claire E., Stanimirović, Snežana, Busch, Michael P., Clark, Susan E., Dawson, J. R., Dénes, Helga, Gibson, Steven, Jameson, Katherine, Joncas, Gilles, Kemp, Ian, Leahy, Denis, Ma, Yik Ki, Marchal, Antoine, Miville-Deschênes, Marc-Antoine, Pingel, Nickolas M., Seta, Amit, Soler, Juan D., van Loon, Jacco Th.
Publikováno v:
MNRAS 2024
We present the largest Galactic neutral hydrogen HI absorption survey to date, utilizing the Australian SKA Pathfinder Telescope at an unprecedented spatial resolution of 30''. This survey, GASKAP-HI, unbiasedly targets 2,714 continuum background sou
Externí odkaz:
http://arxiv.org/abs/2409.20311
Autor:
Weatherhead, Kierra J., Stil, Jeroen M., Rugel, Michael, Peters, Wendy M., Anderson, Loren, Barnes, Ashley, Beuther, Henrik, Clarke, Tracy E., Dzib, Sergio A., Goldsmith, Paul, Menten, Karl M., Nyland, Kristina E., Sormani, Mattia C., Urquhart, James
The radio transient ASKAP J173608.2-321735, at the position (l,b)= (356.0872,-0.0390), was serendipitously observed by The HI/OH/Recombination Line Survey of the Galactic Center (THOR-GC) at three epochs in March 2020, April 2020 and February 2021. T
Externí odkaz:
http://arxiv.org/abs/2405.13183
Autor:
Koribalski, Bärbel S., Duchesne, Stefan W., Lenc, Emil, Venturi, Tiziana, Botteon, Andrea, Shabala, Stanislav S., Vernstrom, Tessa, Carretti, Ettore, Norris, Ray P., Anderson, Craig, Hopkins, Andrew M., Riseley, C. J., Gupta, Nikhel, Velović, Velibor
Among the bent tail radio galaxies common in galaxy clusters are some with long, collimated tails (so-called head-tail galaxies) shaped by their interactions with the intracluster medium (ICM). Here we report the discovery of intricate filamentary st
Externí odkaz:
http://arxiv.org/abs/2405.04374
Autor:
Lazarević, Sanja, Filipović, Miroslav D., Koribalski, Bärbel S., Smeaton, Zachary J., Hopkins, Andrew M., Alsaberi, Rami Z. E., Velović, Velibor, Ball, Brianna D., Kothes, Roland, Leahy, Denis, Ingallinera, Adriano
Publikováno v:
Research Notes of the American Astronomical Society, 8, 107 (2024)
We report the ASKAP discovery of a new Galactic supernova remnant (SNR) candidate G308.73+1.38, which we name Raspberry. This new SNR candidate has an angular size of 20.7 arcmin $\times$ 16.7 arcmin, and we measure a total integrated flux of 407$\pm
Externí odkaz:
http://arxiv.org/abs/2405.03733
Autor:
Duchesne, S. W., Grundy, J. A., Heald, George H., Lenc, Emil, Leung, James K., McConnell, David, Murphy, Tara, Pritchard, Joshua, Rose, Kovi, Thomson, Alec J. M., Wang, Yuanming, Wang, Ziteng, Whiting, Matthew T.
The Australian SKA Pathfinder (ASKAP) has surveyed the sky at multiple frequencies as part of the Rapid ASKAP Continuum Survey (RACS). The first two RACS observing epochs, at 887.5 (RACS-low) and 1367.5 (RACS-mid) MHz, have been released (McConnell e
Externí odkaz:
http://arxiv.org/abs/2311.12369
All very massive early-type galaxies contain supermassive blackholes but are these blackholes all sufficiently active to produce detectable radio continuum sources? We have used the 887.5~MHz Rapid ASKAP Continuum Survey DR1 to measure the radio emis
Externí odkaz:
http://arxiv.org/abs/2311.15456