We present multi-wavelength observations of the unusual nova V1535 Sco throughout its outburst in 2015. Early radio observations were consistent with synchrotron emission, and early X-ray observations revealed the presence of high-energy (>1 keV) photons. These indicated that strong shocks were present during the first ~2 weeks of the nova's evolution. The radio spectral energy distribution was consistent with thermal emission from week 2 to week 6. Starting in week 7, the radio emission again showed evidence of synchrotron emission and there was an increase in X-ray emission, indicating a second shock event. The optical spectra show evidence for at least two separate outflows, with the faster outflow possibly having a bipolar morphology. The optical and near infrared light curves and the X-ray measurements of the hydrogen column density indicated that the companion star is likely a K giant.
@article{arxiv.1703.03333,
title = {The Peculiar Multi-Wavelength Evolution Of V1535 Sco},
author = {J. D. Linford and L. Chomiuk and T. Nelson and T. Finzell and F. M. Walter and J. L. Sokoloski and K. Mukai and A. J. Mioduszewski and A. J. van der Horst and J. H. S. Weston and M. P. Rupen},
journal= {arXiv preprint arXiv:1703.03333},
year = {2017}
}
Comments
20 pages, 13 figures, under review at ApJ, updated to match the most recent version submitted to the referee