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An electro - optical test system for optimising operating conditions of CCD sensors for LSST

Journal of Instrumentation IOP Publishing 12:2017 (2017) 1-13

Authors:

Daniel Weatherill, Ian Shipsey, Kirk Arndt, Richard Plackett

Abstract:

We describe the commissioning of a system which has been built to investigate optimal operation of CCDs for the LSST telescope. The test system is designed for low vibration, high stability operation and is capable of illuminating a detector in flat-field, projected spot, projected pattern and Fe-55 configurations. We compare and describe some considerations when choosing a gain calibration method for CCDs which exhibit the brighter-fatter effect. An optimisation study on a prototype device of gain and full well with varying back substrate bias and gate clock levels is presented.

SNe 2013K and 2013am: observed and physical properties of two slow, normal Type IIP events

(2017)

Authors:

L Tomasella, E Cappellaro, ML Pumo, A Jerkstrand, S Benetti, N Elias-Rosa, M Fraser, C Inserra, A Pastorello, M Turatto, JP Anderson, L Galbany, CP Gutierrez, E Kankare, G Pignata, G Terreran, S Valenti, C Barbarino, FE Bauer, MT Botticella, TW Chen, A Gal-Yam, A Harutyunyan, DA Howell, K Maguire, A Morales Garoffolo, P Ochner, SJ Smartt, S Schulze, DR Young, L Zampieri

The SAMI Galaxy Survey: global stellar populations on the size-mass plane

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 472:3 (2017) 2833-2855

Authors:

N Scott, S Brough, SM Croom, RL Davies, J van de Sande, JT Allen, J Bland-Hawthorn, JJ Bryant, L Cortese, F D'Eugenio, C Federrath, I Ferreras, M Goodwin, B Groves, I Konstantopoulos, JS Lawrence, AM Medling, AJ Moffett, MS Owers, S Richards, ASG Robotham, C Tonini, SK Yi

A precise measurement of the magnetic field in the corona of the black hole binary V404 Cygni

Science American Association for the Advancement of Science 358:6368 (2017)

Authors:

Y Dallilar, SS Eikenberry, A Garner, RD Stelter, A Gottlieb, P Gandhi, P Casella, VS Dhillon, TR Marsh, SP Littlefair, L Hardy, Robert Fender, Kunal Mooley, DJ Walton, F Fuerst, M Bachetti, AJ Castro-Tirado, M Charcos, ML Edwards, NM Lasso-Cabrera, A Marin-Franch, K Ackley, JG Bennett, AJ Cenarro, B Chinn, HV Donoso, R Frommeyer, K Hanna, J Julian, P Miller, S Mullin, CH Murphey, C Packham, F Varosi, C Vega, C Warner, AN Ramaprakash, M Burse, S Punnadi, P Chordia, A Gerarts, H De Paz Mart铆n, MM Calero, R Scarpa, SF Acosta, B Siegel, FF P茅rez

Abstract:

Observations of binary stars containing an accreting black hole or neutron star often show x-ray emission extending to high energies (>10 kilo--electron volts), which is ascribed to an accretion disk corona of energetic particles akin to those seen in the solar corona. Despite their ubiquity, the physical conditions in accretion disk coronae remain poorly constrained. Using simultaneous infrared, optical, x-ray, and radio observations of the Galactic black hole system V404 Cygni, showing a rapid synchrotron cooling event in its 2015 outburst, we present a precise 461 卤 12 gauss magnetic field measurement in the corona. This measurement is substantially lower than previous estimates for such systems, providing constraints on physical models of accretion physics in black hole and neutron star binary systems.

Bias of Damped Lyman-$\alpha$ systems from their cross-correlation with CMB lensing

(2017)

Authors:

David Alonso, Joseph Colosimo, Andreu Font-Ribera, An啪e Slosar