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J/ApJ/344/704       Planetary nebulae as standard candles. III. (Jacoby+, 1989)

Planetary nebulae as standard candles. III. The distance to M 81. Jacoby G.H., Ciardullo R., Ford H.C., Booth J. <Astrophys. J. 344, 704 (1989)> =1989ApJ...344..704J
ADC_Keywords: Planetary nebulae ; Galaxies, nearby Keywords: galaxies: distances - galaxies: individual (M81) - luminosity function - nebulae: planetary Abstract: We present the results of a survey for planetary nebulae in the nearby Sb galaxy M81 (NGC 3031). Using the Kitt Peak 4m telescope and a TI CCD, we identify 185 planetary nebula candidates. Photometry of the nebulae extends nearly 2.5mag below the brightest candidate, although the sample is statistically homogeneous and complete for only 88 nebulae representing the top 1.2mag of the luminosity function. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 35 185 Positions and apparent magnitudes for M 81 planetary nebulae table2.dat 25 10 M 81 Astrometric standards
See also: J/ApJ/339/53 : Paper II, M 31 (Ciardullo+, 1989) J/ApJ/344/715 : Paper IV, Leo I group (Ciardullo+, 1989) J/ApJ/356/332 : Paper V, Virgo cluster (Jacoby+, 1990) J/ApJ/365/471 : Paper VI, Magellanic Clouds (Jacoby+, 1990) J/ApJ/383/487 : Paper VII, NGC 1023 group (Ciardullo+, 1991) J/ApJ/416/62 : Paper IX, Fornax cluster (McMillan+, 1993) J/ApJ/462/1 : Paper X, Coma I region (Jacoby+, 1996) J/ApJ/479/231 : Paper XI, M 101, M 51, M96 (Felmeier+, 1997) J/ApJ/577/31 : Paper XII, Pop I and Pop II (Ciardullo+, 2002) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [JCF89] PN number 5- 6 I2 h RAh Right ascension (1950) 8- 9 I2 min RAm Right ascension (1950) 11- 15 F5.2 s RAs Right ascension (1950) 17 A1 --- DE- Declination sign (1950) 18- 19 I2 deg DEd Declination (1950) 21- 22 I2 arcmin DEm Declination (1950) 24- 27 F4.1 arcsec DEs Declination (1950) 29- 33 F5.2 mag m5007 m5007 magnitude (=-2.5logF(5007)-13.74) 35 A1 --- Sample [S] S: in the sample
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1 A1 --- [JCF89] Astrometric reference star identification letter 4 I1 h RAh Right ascension (1950) 6- 7 I2 min RAm Right ascension (1950) 9- 13 F5.2 s RAs Right ascension (1950) 15 A1 --- DE- Declination sign (1950) 16- 17 I2 deg DEd Declination (1950) 19- 20 I2 arcmin DEm Declination (1950) 22- 25 F4.1 arcsec DEs Declination (1950)
History: Prepared via OCR at CDS. References: Jacoby, Paper I 1989ApJ...339...39J Ciardullo & Jacoby Paper VIII 1992ApJ...388..268C
(End) James Marcout, Patricia Bauer [CDS] 16-Jan-2003
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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