The Peculiar Multi-Wavelength Evolution Of V1535 Sco

Abstract

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.

20 pages, 13 figures, under review at ApJ, updated to match the most recent version submitted to the referee

References in corpus (11)

• Stellar SEDs from 0.3-2.5 Microns: Tracing the Stellar Locus and Searching for Color Outliers in SDSS and 2MASS
• Revised equipartition & minimum energy formula for magnetic field strength estimates from radio synchrotron observations
• Gamma-Ray Emission Concurrent with the Nova in the Symbiotic Binary V407 Cygni
• Fermi Establishes Classical Novae as a Distinct Class of Gamma-Ray Sources
• An Expanding Shell and Synchrotron Jet in RS Ophiuchi
• X-ray Spectroscopy of the 2006 Outburst of RS Oph
• The Radio Light Curve of the Gamma-Ray Nova in V407 Cyg: Thermal Emission from the Ionized Symbiotic Envelope, Devoured from Within by the Nova Blast
• A NuSTAR observation of the fast symbiotic nova V745 Sco in outburst
• Double radio peak and non-thermal collimated ejecta in RS Ophiuchi following the 2006 outburst
• Gamma-ray Novae: Rare or Nearby?
• Low- and Medium-Dispersion Spectropolarimetry of Nova V475 Sct (Nova Scuti 2003): Discovery of an Asymmetric High-Velocity Wind in a Moderately Fast Nova

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• Low-frequency radio observations of recurrent nova RS Ophiuchi with MeerKAT and LOFAR
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