Showing papers by "Maxim Voronkov published in 2022"

WALLABY pilot survey: Public release of H i data for almost 600 galaxies from phase 1 of ASKAP pilot observations

Abstract: Abstract We present WALLABY pilot data release 1, the first public release of H i pilot survey data from the Wide-field ASKAP L-band Legacy All-sky Blind Survey (WALLABY) on the Australian Square Kilometre Array Pathfinder. Phase 1 of the WALLABY pilot survey targeted three $60\,\mathrm{deg}^{2}$ regions on the sky in the direction of the Hydra and Norma galaxy clusters and the NGC 4636 galaxy group, covering the redshift range of $z \lesssim 0.08$ . The source catalogue, images and spectra of nearly 600 extragalactic H i detections and kinematic models for 109 spatially resolved galaxies are available. As the pilot survey targeted regions containing nearby group and cluster environments, the median redshift of the sample of $z \approx 0.014$ is relatively low compared to the full WALLABY survey. The median galaxy H i mass is $2.3 \times 10^{9}\,{\rm M}_{{\odot}}$ . The target noise level of $1.6\,\mathrm{mJy}$ per 30′′ beam and $18.5\,\mathrm{kHz}$ channel translates into a $5 \sigma$ H i mass sensitivity for point sources of about $5.2 \times 10^{8} \, (D_{\rm L} / \mathrm{100\,Mpc})^{2} \, {\rm M}_{{\odot}}$ across 50 spectral channels ( ${\approx} 200\,\mathrm{km \, s}^{-1}$ ) and a $5 \sigma$ H i column density sensitivity of about $8.6 \times 10^{19} \, (1 + z)^{4}\,\mathrm{cm}^{-2}$ across 5 channels ( ${\approx} 20\,\mathrm{km \, s}^{-1}$ ) for emission filling the 30′′ beam. As expected for a pilot survey, several technical issues and artefacts are still affecting the data quality. Most notably, there are systematic flux errors of up to several 10% caused by uncertainties about the exact size and shape of each of the primary beams as well as the presence of sidelobes due to the finite deconvolution threshold. In addition, artefacts such as residual continuum emission and bandpass ripples have affected some of the data. The pilot survey has been highly successful in uncovering such technical problems, most of which are expected to be addressed and rectified before the start of the full WALLABY survey.

Sciences with Thai National Radio Telescope

Abstract: Akahori, Takuya ID , Asanok, Kitiyanee ID , Baan, Willem ID , Bran, Sherin Hassan, Breen, L. Shari ID , Cho, Se-Hyung ID , Chanapote, Thanapol ID , Dodson, Richard ID , Ellingsen, P. Simon ID , Etoka, Sandra, Gray, D. Malcolm, Green, A. James, Hada, Kazuhiro ID , Halson, Marcus, Hirota, Tomoya ID , Honma, Mareki ID , Imai, Hiroshi ID , Johnston, Simon ID , Kim, Kee-Tae ID , Kramer, Michael ID , Li, Di ID , Macatangay, Ronald, Menten, M. Karl ID , Minh, Young Chol ID , Mkrtichian, David ID , Pimpanuwat, Bannawit ID , Richards, M.S. Anita ID , Rioja, Maria ID , Rujopakarn, Wiphu ID , Sakai, Daisuke ID , Sakai, Nobuyuki ID , Samanso, Nattida, Sanpa-arsa, Siraprapa, Semenko, Eugene ID , Sunada, Kazuyoshi ID , Surapipith, Vanisa, Thoonsaengngam, Nattaporn, Voronkov, A. Maxim ID , Wongphecauxson, Jompoj ID , Yadav, Ram Kesh, Zhang, Bo ID , Zheng, Xing Wu and Poshyachinda, Saran

The Evolutionary Map of the Universe Pilot Survey – ADDENDUM

Abstract: Ray P. Norris1,2, Joshua Marvil2,3, J. D. Collier1,2,4, Anna D. Kapińska3, Andrew N. O’Brien1,2,5, L. Rudnick6, Heinz Andernach7, Jacobo Asorey8, Michael J. I. Brown9, Marcus Brüggen10, Evan Crawford1, Jayanne English11, Syed Faisal ur Rahman12, Miroslav D. Filipović1, Yjan Gordon11, Gülay Gürkan13,14, Catherine Hale13,15, Andrew M. Hopkins1,16, Minh T. Huynh13, Kim HyeongHan17, M. James Jee17,18, Bärbel S. Koribalski1,2, Emil Lenc2, Kieran Luken1,2, David Parkinson19,20, Isabella Prandoni21, Wasim Raja2, Thomas H. Reiprich22, Christopher J. Riseley13,21,23, Stanislav S. Shabala24, Jaimie R. Sheil9, Tessa Vernstrom13, Matthew T. Whiting2, James R. Allison2,25, C. S. Anderson2,3, Lewis Ball2,26, Martin Bell2,27, John Bunton2, T. J. Galvin1,13,28, Neeraj Gupta2,29, Aidan Hotan13, Colin Jacka2, Peter J. Macgregor1,2, Elizabeth K. Mahony2, Umberto Maio30, Vanessa Moss2, M. Pandey-Pommier31 and Maxim A. Voronkov2 1Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia, 2CSIRO Space & Astronomy, P.O. Box 76, Epping, NSW 1710, Australia, 3National Radio Astronomy Observatory, PO Box 0, Socorro, NM87801, USA, 4The Inter-University Institute for Data Intensive Astronomy (IDIA), Department of Astronomy, University of Cape Town, Rondebosch, 7701, South Africa, 5Department of Physics, University of Wisconsin-Milwaukee, P.O. Box 413, Milwaukee, WI 53201, USA, 6Minnesota Institute for Astrophysics, University of Minnesota, 116 Church St. SE, Minneapolis, MN 55455, USA, 7Depto. de Astronomía, DCNE, Universidad de Guanajuato, Cjón. de Jalisco s/n, Guanajuato, CP 36023, Mexico, 8Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense, 40, 28040 Madrid, Spain, 9School of Physics and Astronomy, Monash University, Clayton, VIC 3800, Australia, 10University of Hamburg, Hamburger Sternwarte, Gojenbergsweg 112, 21029 Hamburg, Germany, 11Institute of Space and Planetary Astrophysics (ISPA), University of Karachi (UoK), Karachi, Pakistan, 12Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2, Canada, 13CSIRO Space & Astronomy, PO Box 1130, Bentley WA 6102, Australia, 14Thüringer Landessternwarte, Sternwarte 5, D-07778 Tautenburg, Germany, 15School of Physics and Astronomy, Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, EH9 3HJ Edinburgh, UK, 16Australian Astronomical Optics, Macquarie University, 105 Delhi Rd, North Ryde, NSW 2113, Australia, 17Yonsei University, Department of Astronomy, Seoul, Republic of Korea, 18Department of Physics, University of California, Davis, California, USA, 19Korea Astronomy and Space Science Institute, Daejeon 34055, Korea, 20University of Science and Technology, Daejeon 34113, Korea, 21INAF – Istituto di Radioastronomia, via P. Gobetti 101, 40129 Bologna, Italy, 22Argelander Institute for Astronomy (AIfA), University of Bonn, Auf dem Hügel 71, 53121 Bonn, Germany, 23Dipartimento di Fisica e Astronomia, Università degli Studi di Bologna, via P. Gobetti 93/2, 40129 Bologna, Italy, 24School of Natural Sciences, University of Tasmania, Private Bag 37, Hobart, TAS 7001, Australia, 25Sub-Dept. of Astrophysics, Department of Physics, University of Oxford, Denys Wilkinson Building, Keble Rd., Oxford, OX1 3RH, UK, 26SKA Observatory, Jodrell Bank, Lower Withington, Macclesfield, Cheshire SK11 9FT, UK, 27School of Mathematical and Physical Sciences, University of Technology Sydney, 28International Centre for Radio Astronomy Research, Curtin University, Bentley, WA 6102, Australia, 29IUCAA, Post Bag 4, Ganeshkhind, Pune University Campus,Pune 411 007, India, 30INAF Observatory of Trieste, via G. Tiepolo 11, 34143 Trieste, Italy and 31University Claude Bernard Lyon 1, Bâtiment Quai 43 2ème étage, 28, avenue Gaston Berger, 69622 Villeurbanne Cedex, France