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SELECTION OF BURST-LIKE TRANSIENTS AND STOCHASTIC VARIABLES USING MULTI-BAND IMAGE DIFFERENCING IN THE PAN-STARRS1 MEDIUM-DEEP SURVEY

The Astrophysical Journal American Astronomical Society 802:1 (2015) 27

Authors:

S Kumar, S Gezari, S Heinis, R Chornock, E Berger, A Rest, ME Huber, RJ Foley, G Narayan, GH Marion, D Scolnic, A Soderberg, A Lawrence, CW Stubbs, RP Kirshner, AG Riess, SJ Smartt, K Smith, WM Wood-Vasey, WS Burgett, KC Chambers, H Flewelling, N Kaiser, N Metcalfe, PA Price, JL Tonry, RJ Wainscoat
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On the diversity of super-luminous supernovae: ejected mass as the dominant factor

(2015)

Authors:

M Nicholl, SJ Smartt, A Jerkstrand, C Inserra, SA Sim, T-W Chen, S Benetti, M Fraser, A Gal-Yam, E Kankare, K Maguire, K Smith, M Sullivan, S Valenti, DR Young, C Baltay, FE Bauer, S Baumont, D Bersier, M-T Botticella, M Childress, M Dennefeld, M Della Valle, N Elias-Rosa, U Feindt, L Galbany, E Hadjiyska, L Le Guillou, G Leloudas, P Mazzali, R McKinnon, J Polshaw, D Rabinowitz, S Rostami, R Scalzo, BP Schmidt, S Schulze, J Sollerman, F Taddia, F Yuan
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The rich are different: evidence from the RAVE survey for stellar radial migration

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 447:4 (2015) 3526-3535

Authors:

G Kordopatis, J Binney, G Gilmore, RFG Wyse, V Belokurov, PJ McMillan, P Hatfield, EK Grebel, M Steinmetz, JF Navarro, G Seabroke, I Minchev, C Chiappini, O Bienaymé, J Bland-Hawthorn, KC Freeman, BK Gibson, A Helmi, U Munari, Q Parker, WA Reid, A Siebert, A Siviero, T Zwitter
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Far beyond stacking: Fully bayesian constraints on sub-microJy radio source populations over the XMM-LSS-VIDEO field

Monthly Notices of the Royal Astronomical Society Oxford University Press 453:2 (2015) 1740-1753

Authors:

Jonathan TL Zwart, Mario Santos, Matthew J Jarvis

Abstract:

Measuring radio source counts is critical for characterizing new extragalactic populations, brings a wealth of science within reach and will inform forecasts for SKA and its pathfinders. Yet there is currently great debate (and few measurements) about the behaviour of the 1.4-GHz counts in the microJy regime. One way to push the counts to these levels is via 'stacking', the covariance of a map with a catalogue at higher resolution and (often) a different wavelength. For the first time, we cast stacking in a fully bayesian framework, applying it to (i) the SKADS simulation and (ii) VLA data stacked at the positions of sources from the VIDEO survey. In the former case, the algorithm recovers the counts correctly when applied to the catalogue, but is biased high when confusion comes into play. This needs to be accounted for in the analysis of data from any relatively-low-resolution SKA pathfinders. For the latter case, the observed radio source counts remain flat below the 5-sigma level of 85 microJy as far as 40 microJy, then fall off earlier than the flux hinted at by the SKADS simulations and a recent P(D) analysis (which is the only other measurement from the literature at these flux-density levels, itself extrapolated in frequency). Division into galaxy type via spectral-energy distribution reveals that normal spiral galaxies dominate the counts at these fluxes.
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The LOFAR Transients Pipeline

(2015)

Authors:

John D Swinbank, Tim D Staley, Gijs J Molenaar, Evert Rol, Antonia Rowlinson, Bart Scheers, Hanno Spreeuw, Martin E Bell, Jess W Broderick, Dario Carbone, Alexander J van der Horst, Casey J Law, Michael Wise, Rene P Breton, Yvette Cendes, Stéphane Corbel, Jochen Eislöffel, Heino Falcke, Rob Fender, Jean-Mathias Greißmeier, Jason WT Hessels, Benjamin W Stappers, Adam J Stewart, Ralph AMJ Wijers, Rudy Wijnands, Philippe Zarka
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