Hintze Centre for Astrophysical Surveys

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PRE-PROCESSING OF GALAXIES IN THE FILAMENTS AROUND THE VIRGO CLUSTER

Publications of The Korean Astronomical Society The Korean Astronomical Society 30:2 (2015) 495-497

Authors:

HYEIN YOON, AEREE CHUNG, CHANDREYEE SENGUPTA, O IVY WONG, MARTIN BUREAU, SOO-CHANG REY, JH VAN GORKOM
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ASKAP H i imaging of the galaxy group IC 1459

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 452:3 (2015) 2680-2691

Authors:

P Serra, B Koribalski, V Kilborn, JR Allison, SW Amy, L Ball, K Bannister, ME Bell, DC-J Bock, R Bolton, M Bowen, B Boyle, S Broadhurst, D Brodrick, M Brothers, JD Bunton, J Chapman, W Cheng, AP Chippendale, Y Chung, F Cooray, T Cornwell, D DeBoer, P Diamond, R Forsyth, R Gough, N Gupta, GA Hampson, L Harvey-Smith, S Hay, DB Hayman, I Heywood, AW Hotan, S Hoyle, B Humphreys, B Indermuehle, C Jacka, CA Jackson, S Jackson, K Jeganathan, S Johnston, J Joseph, P Kamphuis, M Leach, E Lenc, E Lensson, S Mackay, M Marquarding, J Marvil, N McClure-Griffiths, D McConnell, M Meyer, P Mirtschin, S Neuhold, A Ng, RP Norris, J O'Sullivan, J Pathikulangara, S Pearce, C Phillips, A Popping, RY Qiao, JE Reynolds, P Roberts, RJ Sault, AET Schinckel, R Shaw, TW Shimwell, L Staveley-Smith, M Storey, AW Sweetnam, E Troup, A Tzioumis, MA Voronkov, T Westmeier, M Whiting, C Wilson, OI Wong, X Wu
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The X-Shooter Lens Survey – II. Sample presentation and spatially-resolved kinematics

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 452:3 (2015) 2434-2444

Authors:

C Spiniello, LVE Koopmans, SC Trager, M Barnabè, T Treu, O Czoske, S Vegetti, A Bolton
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Wide-Band, Low-Frequency Pulse Profiles of 100 Radio Pulsars with LOFAR

(2015)

Authors:

M Pilia, JWT Hessels, BW Stappers, VI Kondratiev, M Kramer, J van Leeuwen, P Weltevrede, AG Lyne, K Zagkouris, TE Hassall, AV Bilous, RP Breton, H Falcke, J-M Grießmeier, E Keane, A Karastergiou, M Kuniyoshi, A Noutsos, S Osłowski, M Serylak, C Sobey, S ter Veen, A Alexov, J Anderson, A Asgekar, IM Avruch, ME Bell, MJ Bentum, G Bernardi, L Bîrzan, A Bonafede, F Breitling, JW Broderick, M Brüggen, B Ciardi, S Corbel, E de Geus, A de Jong, A Deller, S Duscha, J Eislöffel, RA Fallows, R Fender, C Ferrari, W Frieswijk, MA Garrett, AW Gunst, JP Hamaker, G Heald, A Horneffer, P Jonker, E Juette, G Kuper, P Maat, G Mann, S Markoff, R McFadden, D McKay-Bukowski, JCA Miller-Jones, A Nelles, H Paas, M Pandey-Pommier, M Pietka, R Pizzo, AG Polatidis, W Reich, H Röttgering, A Rowlinson, D Schwarz, O Smirnov, M Steinmetz, A Stewart, JD Swinbank, M Tagger, Y Tang, C Tasse, S Thoudam, MC Toribio, AJ van der Horst, R Vermeulen, C Vocks, RJ van Weeren, RAMJ Wijers, R Wijnands, SJ Wijnholds, O Wucknitz, P Zarka
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The detection of a SN IIn in optical follow-up observations of IceCube neutrino events

Astrophysical Journal American Astronomical Society 811:1 (2015) 1-17

Authors:

K Abraham, M Ackermann, Subir Sarkar

Abstract:

The IceCube neutrino observatory pursues a follow-up program selecting interesting neutrino events in real-time and issuing alerts for electromagnetic follow-up observations. In 2012 March, the most significant neutrino alert during the first three years of operation was issued by IceCube. In the follow-up observations performed by the Palomar Transient Factory (PTF), a Type IIn supernova (SN IIn) PTF12csy was found 0.°2 away from the neutrino alert direction, with an error radius of 0.°54. It has a redshift of z = 0.0684, corresponding to a luminosity distance of about 300 Mpc and the Pan-STARRS1 survey shows that its explosion time was at least 158 days (in host galaxy rest frame) before the neutrino alert, so that a causal connection is unlikely. The a posteriori significance of the chance detection of both the neutrinos and the SN at any epoch is 2.2σ within IceCube's 2011/12 data acquisition season. Also, a complementary neutrino analysis reveals no long-term signal over the course of one year. Therefore, we consider the SN detection coincidental and the neutrinos uncorrelated to the SN. However, the SN is unusual and interesting by itself: it is luminous and energetic, bearing strong resemblance to the SN IIn 2010jl, and shows signs of interaction of the SN ejecta with a dense circumstellar medium. High-energy neutrino emission is expected in models of diffusive shock acceleration, but at a low, non-detectable level for this specific SN. In this paper, we describe the SN PTF12csy and present both the neutrino and electromagnetic data, as well as their analysis.
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