2001A&A...367..933P


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.21CEST06:15:00

2001A&A...367..933P - Astronomy and Astrophysics, volume 367, 933-938 (2001/3-1)

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

PAVLENKO Y.V. and DUERBECK H.W.

Abstract (from CDS):

Theoretical spectral energy distributions are computed for a grid of hydrogen-deficient and carbon-rich model atmospheres with a range in Teff of 4000-5500K and logg 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 300-1000nm. This comparison yields an effective temperature of V4334 Sgr of Teff=5250±200K, and a value for the interstellar plus circumstellar reddening of EB–V=1.3±0.1.

Abstract Copyright:

Journal keyword(s): stars: individual: V4334 Sgr - stars: AGB and post-AGB - stars: fundamental parameters

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 V* R CrB RC* 15 48 34.4147978750 +28 09 24.298218765 6.44 6.31 5.71 5.26 5.08 G0Iep 755 0
2 V* V4334 Sgr NL* 17 52 32.69 -17 41 08.0   12.01       F2Ia 319 0
3 PN A66 58 PN 19 18 20.476 +01 46 59.62           [WC4] 283 0
4 Hen 1-5 pA* 20 11 56.06832 +20 20 04.4916 11.41 10.66 9.45     G8/K0Iae 485 1

    Equat.    Gal    SGal    Ecl

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2019.10.21-06:15:00

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