Warm high velocity CO in the wind of Sakurai’s Object (= V4334 Sgr)

Abstract

We present UKIRT UIST spectra of Sakurai’s Object (=V4334 Sgr) showing CO fundamental band absorption features around 4.7 μm. The line-centres are at heliocentric radial velocity of −170±30 km s. The number and relative strengths of the lines indicate a CO gas temperature of 400 ± 100 K and CO column density of 7 −2 × 10 17 cm. The gas was moving away from… (More)

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