Pulsars, transients and relativistic astrophysics

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Selecting superluminous supernovae in faint galaxies from the first year of the Pan-STARRS1 Medium Deep Survey

(2014)

Authors:

M McCrum, SJ Smartt, A Rest, K Smith, R Kotak, SA Rodney, DR Young, R Chornock, E Berger, RJ Foley, M Fraser, D Wright, D Scolnic, JL Tonry, Y Urata, K Huang, A Pastorello, MT Botticella, S Valenti, S Mattila, E Kankare, DJ Farrow, ME Huber, CW Stubbs, RP Kirshner, F Bresolin, WS Burgett, KC Chambers, PW Draper, H Flewelling, R Jedicke, N Kaiser, EA Magnier, N Metcalfe, JS Morgan, PA Price, W Sweeney, RJ Wainscoat, C Waters
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Optical and near-infrared observations of SN 2011dh – The first 100 days⋆⋆⋆

Astronomy & Astrophysics EDP Sciences 562 (2014) a17

Authors:

M Ergon, J Sollerman, M Fraser, A Pastorello, S Taubenberger, N Elias-Rosa, M Bersten, A Jerkstrand, S Benetti, MT Botticella, C Fransson, A Harutyunyan, R Kotak, S Smartt, S Valenti, F Bufano, E Cappellaro, M Fiaschi, A Howell, E Kankare, L Magill, S Mattila, J Maund, R Naves, P Ochner, J Ruiz, K Smith, L Tomasella, M Turatto
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Discovery of Carbon Radio Recombination Lines in absorption towards Cygnus~A

(2014)

Authors:

JBR Oonk, RJ van Weeren, F Salgado, LK Morabito, AGGM Tielens, HJA Rottgering, A Asgekar, GJ White, A Alexov, J Anderson, IM Avruch, F Batejat, R Beck, ME Bell, I van Bemmel, MJ Bentum, G Bernardi, P Best, A Bonafede, F Breitling, M Brentjens, J Broderick, M Brueggen, HR Butcher, B Ciardi, JE Conway, A Corstanje, F de Gasperin, E de Geus, M de Vos, S Duscha, J Eisloeffel, D Engels, J van Enst, H Falcke, RA Fallows, R Fender, C Ferrari, W Frieswijk, MA Garrett, J Griessmeier, JP Hamaker, TE Hassall, G Heald, JWT Hessels, M Hoeft, A Horneffer, A van der Horst, M Iacobelli, NJ Jackson, E Juette, A Karastergiou, W Klijn, J Kohler, VI Kondratiev, M Kramer, M Kuniyoshi, G Kuper, J van Leeuwen, P Maat, G Macario, G Mann, S Markoff, JP McKean, M Mevius, JCA Miller-Jones, JD Mol, DD Mulcahy, H Munk, MJ Norden, E Orru, H Paas, M Pandey-Pommier, VN Pandey, R Pizzo, AG Polatidis, W Reich, AMM Scaife, A Schoenmakers, D Schwarz, A Shulevski, J Sluman, O Smirnov, C Sobey, BW Stappers, M Steinmetz, J Swinbank, M Tagger, Y Tang, C Tasse, S ter Veen, S Thoudam, C Toribio, R van Nieuwpoort, R Vermeulen, C Vocks, C Vogt, RAMJ Wijers, MW Wise, O Wucknitz, S Yatawatta, P Zarka, A Zensus
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PESSTO monitoring of SN 2012hn: further heterogeneity among faint Type I supernovae★

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 437:2 (2014) 1519-1533

Authors:

S Valenti, F Yuan, S Taubenberger, K Maguire, A Pastorello, S Benetti, SJ Smartt, E Cappellaro, DA Howell, L Bildsten, K Moore, M Stritzinger, JP Anderson, S Benitez-Herrera, F Bufano, S Gonzalez-Gaitan, MG McCrum, G Pignata, M Fraser, A Gal-Yam, L Le Guillou, C Inserra, DE Reichart, R Scalzo, M Sullivan, O Yaron, DR Young
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Evidence of an asteroid encountering a pulsar

Astrophysical Journal Letters 780:2 (2014)

Authors:

PR Brook, A Karastergiou, S Buchner, SJ Roberts, MJ Keith, S Johnston, RM Shannon

Abstract:

Debris disks and asteroid belts are expected to form around young pulsars due to fallback material from their original supernova explosions. Disk material may migrate inward and interact with a pulsar's magnetosphere, causing changes in torque and emission. Long-term monitoring of PSR J0738-4042 reveals both effects. The pulse shape changes multiple times between 1988 and 2012. The torque, inferred via the derivative of the rotational period, changes abruptly from 2005 September. This change is accompanied by an emergent radio component that drifts with respect to the rest of the pulse. No known intrinsic pulsar processes can explain these timing and radio emission signatures. The data lead us to postulate that we are witnessing an encounter with an asteroid or in-falling debris from a disk. © 2014. The American Astronomical Society. All rights reserved.
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