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J/ApJ/617/192          ROSAT AGN Catalog in North Ecliptic Pole  (Mullis+, 2004)

Spatial correlation function of X-ray-selected active galactic nuclei. Mullis C.R., Henry J.P., Gioia I.M., Bohringer H., Briel U.G., Voges W., Huchra J.P. <Astrophys. J., 617, 192-208 (2004)> =2004ApJ...617..192M
ADC_Keywords: Active gal. nuclei ; X-ray sources Keywords: cosmology: observations - large-scale structure of universe - quasars: general - X-rays: general Abstract: We present a detailed description of the first direct measurement of the spatial correlation function of X-ray-selected active galactic nuclei (AGNs). This result is based on an X-ray flux-limited sample of 219 AGNs discovered in the contiguous 80.7°2 region of the ROSAT North Ecliptic Pole (NEP) Survey (Cat. J/ApJS/149/29). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 105 219 ROSAT NEP AGN Catalog
See also: J/ApJS/149/29 : ROSAT North Ecliptic Pole Survey (Gioia+, 2003) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 A2 --- --- [RX] 3- 14 A12 --- RX Object name (RX JHHMM.m+DDMM in Simbad) 15 A1 --- f_RX Flag on RX (1) 16- 19 I4 --- NEP Internal identification number 21- 22 I2 h RAh Hour of ROSAT Right Ascension (J2000) 24- 25 I2 min RAm Minute of ROSAT Right Ascension (J2000) 27- 30 F4.1 s RAs Second of ROSAT Right Ascension (J2000) 32 A1 --- DE- Sign of the ROSAT Declination (J2000) 33- 34 I2 deg DEd Degree of ROSAT Declination (J2000) 36- 37 I2 arcmin DEm Arcminute of ROSAT Declination (J2000) 39- 40 I2 arcsec DEs Arcsecond of ROSAT Declination (J2000) 42- 43 I2 h RAOh Hour of associated optical object Right Ascension (J2000) 45- 46 I2 min RAOm Minute of associated optical object Right Ascension (J2000) 48- 51 F4.1 s RAOs Second of associated optical object Right Ascension (J2000) 53 A1 --- DEO- Sign of the associated optical object Declination (J2000) 54- 55 I2 deg DEOd Degree of associated optical object Declination (J2000) 57- 58 I2 arcmin DEOm Arcminute of associated optical object Declination (J2000) 60- 61 I2 arcsec DEOs Arcsecond of associated optical object Declination (J2000) 63- 66 F4.2 10+20/cm2 NH Column density of Galactic hydrogen 68- 73 F6.4 ct/s CR The 0.1-2.4keV count rate (2) 75- 80 F6.4 ct/s e_CR Error in CR 82- 88 F7.2 10-14mW/m2 FXtot Rest frame total 0.5-2keV unabsorbed flux in units of 10-14erg/cm2/s (3) 90- 96 F7.3 10+37W LX Rest frame K-corrected 0.5-2keV luminosity in units of 1044erg/s (4) 98-103 F6.4 --- z Spectroscopically measured redshift (5) 105 A1 --- Type AGN type, 1 or 2
Note (1): "a" indicates that RX J1824.7+6509 (NEP 5500) was formerly classified as a stellar X-ray source based on the literature. However, more recent work convincingly demonstrates this source is a type 1 AGN at z=0.303 (e.g., Engels et al. 1998, Cat. J/A+AS/128/507). Note (2): The count rate (0.1-2.4keV) is measured in a circular photometry aperture (5' radius). Note (3): We have converted from count rate to unabsorbed flux assuming a power-law spectrum with photon index of 2. The total flux accounts for the flux outside the photometry aperture and reflects the size correction applied to the detect flux. For point sources such as AGN this flux corretion factor is constant and equal to 1.0369. Note (4): Adopted cosmology: H0=70.h70.km/s/Mpc, ΩM=0.3, ΩΛ=0.7; K-correction factor of 1 for a power-law spectrum of photon index 2. Note (5): Typical uncertainty is ≤0.001.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 17-Jun-2005
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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