Furiously fast and red: sub-second optical flaring in V404 Cyg during the 2015 outburst peak

We present observations of rapid (sub-second) optical flux variability in V404 Cyg during its 2015 June outburst. Simultaneous three-band observations with the ULTRACAM fast imager on four nights show steep power spectra dominated by slow variations on ∼100–1000 s time-scales. Near the peak of the o...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2016-06, Vol.459 (1), p.554-572
Hauptverfasser:	Gandhi, P., Littlefair, S. P., Hardy, L. K., Dhillon, V. S., Marsh, T. R., Shaw, A. W., Altamirano, D., Caballero-Garcia, M. D., Casares, J., Casella, P., Castro-Tirado, A. J., Charles, P. A., Dallilar, Y., Eikenberry, S., Fender, R. P., Hynes, R. I., Knigge, C., Kuulkers, E., Mooley, K., Muñoz-Darias, T., Pahari, M., Rahoui, F., Russell, D. M., Hernández Santisteban, J. V., Shahbaz, T., Terndrup, D. M., Tomsick, J., Walton, D. J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Emission Flares Flux Luminosity Outbursts Reprocessing Slopes Spectrum analysis Stars & galaxies X-ray astronomy X-rays
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