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J/ApJ/383/487     Planetary nebulae as standard candles. VII. (Ciardullo+, 1991)

Planetary nebulae as standard candles. VII. A test versus Hubble type in the NGC 1023 group. Ciardullo R., Jacoby G.H., Harris W.E. <Astrophys. J. 383, 487 (1991)> =1991ApJ...383..487C
ADC_Keywords: Planetary nebulae ; Galaxies, nearby Keywords: galaxies: distances - galaxies: individual (NGC 1023, NGC 891) - galaxies: stellar content - luminosity function - nebulae: planetary Abstract: We present the results of an [O III] λ5007 survey for planetary nebulae in the NGC 1023 Group. In all, we detected 143 planetary nebula candidates: 110 in the SB0 galaxy NGC 1023 and 33 in the halo of the edge-on Sb spiral NGC 891. Using a statistically complete and homogeneous sample of planetary nebulae and the procedures described in previous papers in the series, we derive distances to these galaxies using the planetary nebula luminosity function (PNLF). After correcting for foreground extinction by using the estimated reddening values of Burstein and Heiles, we find the distance moduli for NGC 1023 and NGC 891 are 29.97±0.14 and 29.97±.16, respectively. The similarity of these distances demonstrates the insensitivity of the PNLF to galaxy Hubble types and population age, and again confirms it as one of the best extragalactic standard candles. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 50 110 NGC 1023 planetary nebulae table3.dat 51 33 NGC 891 planetary nebulae table5.dat 37 36 Astrometric reference stars
See also: J/ApJ/339/53 : Paper II, M 31 (Ciardullo+, 1989) J/ApJ/344/704 : Paper III, M 81 (Jacoby+, 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/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: table2.dat table3.dat
Bytes Format Units Label Explanations
1- 12 A12 --- [CJH91] Star identification (NGC NNNN NNN) (G1) 14- 15 I2 h RAh Right ascension (1950) 17- 18 I2 min RAm Right ascension (1950) 20- 24 F5.2 s RAs Right ascension (1950) 26 A1 --- DE- Declination sign (1950) 27- 28 I2 deg DEd Declination (1950) 30- 31 I2 arcmin DEm Declination (1950) 33- 36 F4.1 arcsec DEs Declination (1950) 38- 42 F5.2 mag m5007 m5007 magnitude (=-2.5logF(5007) - 13.74) 44- 47 F4.1 arcsec Z ? High above the plane (table3 only) 50 A1 --- Sample [S] S: in the sample (table2 only)
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 12 A12 --- [CJH91] Astrometric reference star name (NGC NNNN a) (G1) 16 I1 h RAh Right ascension (1950) 18- 19 I2 min RAm Right ascension (1950) 21- 25 F5.2 s RAs Right ascension (1950) 27 A1 --- DE- Declination sign (1950) 28- 29 I2 deg DEd Declination (1950) 31- 32 I2 arcmin DEm Declination (1950) 34- 37 F4.1 arcsec DEs Declination (1950)
Global notes: Note (G1): Nomenclature: Table 2: [CJH91] NGC 1023 NNN in Simbad Table 3: [CJH91] NGC 891 NN in Simbad Table 5: [CJH91] NGC 891 a in Simbad
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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