The spectrum of V4334 Sgr (Sakurai's object) in August, 1998

Details The spectrum of V4334 Sgr (Sakurai's object) in August, 1998 The spectrum of V4334 Sgr (Sakurai's object) in August, 1998

2001-01-14

arxiv.org/abs/astro-ph/0101229v1

Astronomy and Astrophysics

Astrophysics

LaTeX, 6 pages, 7 ps-figures; accepted by Astronomy and Astrophysics

Scientific paper

10.1051/0004-6361:20010067

Theoretical spectral energy distributions are computed for a grid of hydrogen-deficient and carbon-rich model atmospheres with a range in T(eff) of 4000 - 5500 K and log g of 1.0 - 0.0, using the technique of opacity sampling, and taking into account continuous, atomic line and molecular band absorption. The energy distributions are compared with the spectrum of V4334 Sgr (Sakurai's object) of August 12, 1998 in the wavelength interval 300-1000 nm. This comparison yields an effective temperature of V4334 Sgr of T(eff) = 5250+/-200 K, and a value for the interstellar plus circumstellar reddening of E(B-V) = 1.3+/-0.1.

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