2001A&A...373..572G

Query : 2001A&A...373..572G

2001A&A...373..572G - Astronomy and Astrophysics, volume 373, 572-575 (2001/7-2)

UV (IUE) spectra of the central stars of high latitude planetary nebulae Hb7 and Sp3.

GAUBA G., PARTHASARATHY M., NAKADA Y. and FUJII T.

Abstract (from CDS):

We present an analysis of the UV (IUE) spectra of the central stars of Hb7 and Sp3. Comparison with the IUE spectrum of the standard star HD 93205 leads to a spectral classification of O3V for these stars, with an effective temperature of 50000 K. From the P-Cygni profiles of CIV (1550Å), we derive stellar wind velocities and mass loss rates of -1317km/s±300km/s and 2.9x10–8M☉/yr and -1603km/s±400km/s and 7x10–9M☉/yr for Hb7 and Sp3 respectively. From all the available data, we reconstruct the spectral energy distribution of Hb7 and Sp3.

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Journal keyword(s): planetary Nebulae: individual: Hb7, Sp3 - stars: AGB and Post-AGB - stars: evolution - stars: mass-loss - stars: winds - ultraviolet: stars

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 - 2024 		#notes
1 V* V560 Car SB* 10 44 33.7393258944 -59 44 15.434446956 6.89 7.80 7.75 7.56 7.46 O3.5V((f))+O8V 301 0
2 CD-59 6479 Be* 17 16 21.08 -59 29 23.3 10.03 10.73 10.75     B3e 128 0
3 PN Sp 3 PN 18 07 15.8007531408 -51 01 10.214393376   12.80 12.89 13.46 13.22 O 78 0
4 PN Hb 7 PN 18 55 37.8037363176 -32 15 48.553611372   12.58 11.65 13.61   O3 93 0

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