Zobrazeno 1 - 10
of 3 931
pro vyhledávání: '"Hopkins, A. M."'
Autor:
Macgregor, Peter. J., Norris, Ray P., O'Brien, Andrew, Akhlaghi, Mohammad, Anderson, Craig, Collier, Jordan D., Crawford, Evan J., Duchesne, Stefan W., Filipović, Miroslav D., Koribalski, Bärbel S., Pacaud, Florian, Reiprich, Thomas H., Riseley, Christopher J., Rudnick, Lawrence, Vernstrom, Tessa, Hopkins, Andrew. M., Johnston-Hollitt, Melanie, Marvil, Josh, Whiting, Matthew, Tingay, Steven
We present radio observations of the galaxy cluster Abell S1136 at 888 MHz, using the Australian Square Kilometre Array Pathfinder radio telescope, as part of the Evolutionary Map of the Universe Early Science program. We compare these findings with
Externí odkaz:
http://arxiv.org/abs/2406.09709
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:
Riggi, S., Cecconello, T., Palazzo, S., Hopkins, A. M., Gupta, N., Bordiu, C., Ingallinera, A., Buemi, C., Bufano, F., Cavallaro, F., Filipović, M. D., Leto, P., Loru, S., Ruggeri, A. C., Trigilio, C., Umana, G., Vitello, F.
New advancements in radio data post-processing are underway within the SKA precursor community, aiming to facilitate the extraction of scientific results from survey images through a semi-automated approach. Several of these developments leverage dee
Externí odkaz:
http://arxiv.org/abs/2404.18462
Autor:
Koribalski, Bärbel S., Khabibullin, Ildar, Dolag, Klaus, Churazov, Eugene, Norris, Ray P., Carretti, Ettore, Hopkins, Andrew M., Vernstrom, Tessa, Shabala, Stanislav S., Gupta, Nikhel
We present the discovery of large radio shells around a massive pair of interacting galaxies and extended diffuse X-ray emission within the shells. The radio data were obtained with the Australian Square Kilometer Array Pathfinder (ASKAP) in two freq
Externí odkaz:
http://arxiv.org/abs/2404.09522
Autor:
Gupta, Nikhel, Norris, Ray P., Hayder, Zeeshan, Huynh, Minh, Petersson, Lars, Wang, X. Rosalind, Hopkins, Andrew M., Andernach, Heinz, Gordon, Yjan, Riggi, Simone, Yew, Miranda, Crawford, Evan J., Koribalski, Bärbel, Filipović, Miroslav D., Kapinśka, Anna D., Shabala, Stanislav, Vernstrom, Tessa, Marvil, Joshua R.
We present source detection and catalogue construction pipelines to build the first catalogue of radio galaxies from the 270 $\rm deg^2$ pilot survey of the Evolutionary Map of the Universe (EMU-PS) conducted with the Australian Square Kilometre Arra
Externí odkaz:
http://arxiv.org/abs/2403.14235
Autor:
Riggi, S., Umana, G., Trigilio, C., Bordiu, C., Bufano, F., Ingallinera, A., Cavallaro, F., Gordon, Y., Norris, R. P., Gürkan, G., Leto, P., Buemi, C., Loru, S., Hopkins, A. M., Filipović, M. D., Cecconello, T.
Generation of science-ready data from processed data products is one of the major challenges in next-generation radio continuum surveys with the Square Kilometre Array (SKA) and its precursors, due to the expected data volume and the need to achieve
Externí odkaz:
http://arxiv.org/abs/2402.15232
Autor:
Prathap, Jahang, Hopkins, Andrew M., Robotham, Aaron S. G., Bellstedt, Sabine, Afonso, José, Ahmed, Ummee T., Bilicki, Maciej, Bremer, Malcolm N., Brough, Sarah, Brown, Michael J. I., Gordon, Yjan, Holwerda, Benne W., Leahy, Denis, López-Sánchez, Ángel R., Marvil, Joshua R., Mukherjee, Tamal, Prandoni, Isabella, Shabala, Stanislav S., Vernstrom, Tessa, Zafar, Tayyaba
We propose a new method for identifying active galactic nuclei (AGN) in low mass ($\rm M_*\leq10^{10}M_\odot$) galaxies. This method relies on spectral energy distribution (SED) fitting to identify galaxies whose radio flux density has an excess over
Externí odkaz:
http://arxiv.org/abs/2402.11817
Autor:
Duchesne, S. W., Botteon, A., Koribalski, B. S., Loi, F., Rajpurohit, K., Riseley, C. J., Rudnick, L., Vernstrom, T., Andernach, H., Hopkins, A. M., Kapinska, A. D., Norris, R. P., Zafar, T.
Clusters of galaxies have been found to host Mpc-scale diffuse, non-thermal radio emission in the form of central radio halos and peripheral relics. Turbulence and shock-related processes in the intra-cluster medium are generally considered responsib
Externí odkaz:
http://arxiv.org/abs/2402.06192
Autor:
Ahmed, U. T., Hopkins, A. M., Ware, J., Gordon, Y. A., Bilicki, M., Brown, M. J. I., Cluver, M., Gürkan, G., López-Sánchez, Á. R., Leahy, D. A., Marchetti, L., Phillipps, S., Prandoni, I., Seymour, N., Taylor, E. N., Vardoulaki, E.
We demonstrate the importance of radio selection in probing heavily obscured galaxy populations. We combine Evolutionary Map of the Universe (EMU) Early Science data in the Galaxy and Mass Assembly (GAMA) G23 field with the GAMA data, providing optic
Externí odkaz:
http://arxiv.org/abs/2312.11883