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J/ApJ/610/128     NIR colors of hard X-ray-selected AGN        (Watanabe+, 2004)

Near-infrared colors of hard X-ray-selected active galactic nuclei. Watanabe C., Ohta K., Akiyama M., Ueda Y. <Astrophys. J., 610, 128-139 (2004)> =2004ApJ...610..128W
ADC_Keywords: Active gal. nuclei ; Photometry, infrared ; X-ray sources ; Redshifts Keywords: galaxies: active - infrared: galaxies - quasars: general - surveys - X-rays: galaxies Abstract: We present results of near-infrared photometry (J, H, Ks) for a hard X-ray-selected sample of active galactic nuclei (AGNs) obtained from optical identification of the sources detected in ASCA surveys (total ∼75deg2) with a flux limit of (1-3)x10-13erg/s/cm2 (2-10keV). The sample covers the AGNs at 0.1≲z≲1 with L2-10keV=1042-1046erg/s with very high completeness. The near-infrared photometric data of the sample are obtained from the Two Micron All Sky Survey (2MASS, Cat. II/246) and observations with Kitt Peak National Observatory 2.1m telescope and the University of Hawaii 2.2m telescope. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 140 104 Properties of ASCA AGNs
See also: J/ApJS/148/275 : ASCA AGN optical identifications (Akiyama+, 2003) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 17 A17 --- Name X-ray source name (1) 19- 24 A6 --- NName Identification number (1) 26- 30 F5.2 mag Jmag The J band magnitude 32- 35 F4.2 mag e_Jmag Uncertainty in Jmag 37 A1 --- l_Hmag Limit flag on Hmag 38- 42 F5.2 mag Hmag ? The H band magnitude 44- 47 F4.2 mag e_Hmag ? Uncertainty in Hmag 49 A1 --- l_Ksmag Limit flag on Ksmag 50- 54 F5.2 mag Ksmag The Ks band magnitude 56- 59 F4.2 mag e_Ksmag ? Uncertainty in Ksmag 61 A1 --- f_Ksmag [m] Indicates Ksmag was converted from K by Akiyama & Ohta (2001PASJ...53...63A) 63- 66 F4.2 mag J-Ks The (J-Ks) color 68- 71 F4.1 mag Bmag ? The B band magnitude (2) 73 A1 --- f_Bmag [US] Flag on Bmag (3) 75- 78 F4.1 mag Rmag The R band magnitude (2) 80 A1 --- f_Rmag [USKB] Flag on Rmag (3) 82- 86 A5 --- IRef The NIR data source (4) 88- 92 F5.3 --- z Redshift (5) 94 A1 --- f_z [j] Flag on z (6) 96-100 F5.2 10-13mW/m2 Flux The 2-10keV flux in units of 10-13erg/s/cm2 (7) 102 A1 --- f_Flux [ikl] Flag on Flux (8) 104-108 F5.2 [10-7W] logL Log of the 2-10 keV luminosity in units of erg/s (9) 110-114 F5.2 10+22/cm2 NH Best fit hydrogen column density (10) 116-119 F4.2 10+22/cm2 e_NH ? Lower limit error on NH 121-125 F5.2 10+22/cm2 E_NH ? Upper limit error on NH 127-129 F3.1 --- Gamma Intrinsic photon index (11) 131-133 F3.1 --- e_Gamma ? Lower limit error on Gamma 135-137 F3.1 --- E_Gamma ? Upper limit error on Gamma
Note (1): X-ray source name and identification number (Ueda et al.: 1999, Cat. J/ApJ/518/656 and 2001, Cat. J/ApJS/133/1 and Akiyama et al.: 2000ApJ...532..700A, and 2003, Cat. J/ApJS/148/275). Note (2): From APM catalog (2000, Cat. I/267), unless otherwise noted. Magnitudes are converted from O and E magnitudes of APM catalogue by using the equations by Evans (1989A&AS...78..249E). Note (3): The flags on Bmag and Rmag have the following meaning: U = Determined by photometric observations with a CCD camera on the UH88 inch telescope (Akiyama et al. 2003, Cat. J/ApJS/148/275). S = Determined from the spectrophotometric data (Akiyama et al. 2003, Cat. J/ApJS/148/275). K = Determined by relative photometry with mosaic CCD image taken at KISO observatory (Akiyama et al. 2000ApJ...532..700A). B = APM magnitude data is blended. Deblending was done using CCD image taken during the spectroscopic observations (Akiyama et al. 2000ApJ...532..700A). Note (4): KPNO, 2MASS, and UH shows Kitt Peak National Observatory (2.1m telescope), 2MASS All-Sky Point Source Catalog (Cat. II/246), and University of Hawaii (88 inch telescope), respectively. Note (5): Determined by the spectroscopic observations in optical (Akiyama et al. 2000ApJ...532..700A, 2003 Cat. J/ApJS/148/275). Note (6): The flag on z is defined as follows: j = The identification of this X-ray source was not correct in Akiyama et al. (2000ApJ...532..700A). See the footnote in section 4.3.2. Note (7): Conversions from countrates are done based on the best-fit absorbed power-law spectra. (More details for the conversions are described by Ueda et al. 2003ApJ...598..886U). Note (8): Flags on Flux, defined as follows: i = X-ray data from Loaring et al. (2003MNRAS.345..865L). k = X-ray data from the follow-up observation with XMM-Newton. See Ueda et al. (2003ApJ...598..886U). l = X-ray data from the follow-up observation with ASCA. Note (9): Absorption-corrected in the rest-frame 2-10keV band. Note (10): For the absorbed power-law model. The value of 0 without error indicates that NH=0 is assumed if the best-fit photon index is larger than 1.9. See Section 2 and Ueda et al. (2003ApJ...598..886U) for the details. Note (11): The value of 1.9 without error indicates that the intrinsic photon index of 1.9 is assumed if the best-fit photon index is smaller than 1.9. See Section 2 and Ueda et al. (2003ApJ...598..886U) for the details.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 16-Mar-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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