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  • DISTANCE AND REDDENING OF T...
    Finzell, Thomas; Chomiuk, Laura; Munari, Ulisse; Walter, Frederick M.

    The Astrophysical journal, 08/2015, Letnik: 809, Številka: 2
    Journal Article

    ABSTRACT It has recently been discovered that some, if not all, classical novae emit GeV gamma-rays during outburst. Despite using an unreliable method to determine its distance, previous work showed that nova V1324 Sco was the most gamma-ray luminous of all gamma-ray-detected novae. We present here a different, more robust, method to determine the reddening and distance to V1324 Sco using high-resolution optical spectroscopy. Using two independent methods, we derived a reddening of and a distance limit of . This distance is greater than the value used in the gamma-ray analysis, meaning that V1324 Sco has an even higher gamma-ray luminosity than previously calculated. We also use periodic modulations in the brightness, interpreted as the orbital period, in conjunction with pre-outburst photometric limits to show that a main-sequence companion is strongly favored.