J/ApJS/133/1 GIS catalog project : source catalog (Ueda+, 2001)
The ASCA Medium Sensitivity Survey (the GIS catalog project): source catalog. Ueda Y., Ishisaki Y., Takahashi T., Makishima K., Ohashi T. <Astrophys. J. Suppl. Ser. 133, 1 (2001)> =2001ApJS..133....1U
ADC_Keywords: Galaxy catalogs ; X-ray sources ; Mission_Name: ASCA Keywords: catalogs - diffuse radiation - galaxies: active - X-rays: galaxies - X-rays: general Abstract: We present the first X-ray source catalog of the ASCA Medium Sensitivity Survey (AMSS, or the GIS catalog project), constructed from data at Galactic latitudes |b|>10° observed between 1993 May and 1996 December. The catalog utilizes 368 combined fields and contains 1343 sources with the detection significance above 5σ either in the survey bands of 0.7-7keV, 2-10keV, or 0.7-2keV, including target sources. For each source, the ASCA source name, position, a 90% error radius, count rates in the three bands, detection significances, fluxes, and a hardness ratio are provided. With extensive simulations, we carefully evaluate the data quality of the catalog. Results from cross-correlation with other existing catalogs are briefly summarized. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 104 505 The field list of the AMSS table2.dat 130 1343 The source list of the AMSS
See also: J/ApJ/518/656 : ASCA Large Sky Survey (Ueda+, 1999) J/ApJS/161/185 : GIS catalog project : source catalog II (Ueda+, 2005) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Field Field identification 5 A1 --- f_Field [a] Indicates not used in Section 4 statistical analysis 7- 10 F4.1 10+20/cm2 NH Galactic hydrogen column density (1) 12- 19 I8 --- Seq Sequence Number 21- 38 A18 --- Target Target name 40- 46 F7.3 deg RAdeg Average right ascension pointing (J2000) 48- 54 F7.3 deg DEdeg Average declination pointing (J2000) 56- 58 I3 deg Roll Roll angle (2) 60- 69 A10 "YYYY/MM/DD" Obs1.Date Date observation began 71- 72 I2 h Obs1.h Hour observation began 74- 75 I2 min Obs1.m Minute observation began 77- 86 A10 "YYYY/MM/DD" Obs2.Date Date observation ended 88- 89 I2 h Obs2.h Hour observation ended 91- 92 I2 min Obs2.m Minute observation ended 94- 98 F5.1 ks Exp Exposure time 100-103 F4.2 ct/s CR Mean count rate of GIS2 and GIS3 including the background
Note (1): Estimated from the HI map by Dickey & Lockman (1990ARA&A..28..215D). Note (2): Defined as that of detector-y axis measured in clockwise direction from the north.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [1AXG] 6- 17 A12 --- 1AXG Source name (JHHMMSS+DDMM) 19- 26 F8.4 deg RAdeg Right ascension (J2000) 28- 35 F8.4 deg DEdeg Declination (J2000) 37- 40 F4.2 arcmin PosErr The 90% error radius (1) 42- 46 F5.1 ct/ks SigF The 0.7-7 keV σ detection significance 48- 52 F5.1 ct/ks SigH The 2-10 keV σ detection significance 54- 58 F5.1 ct/ks SigS The 0.7-2 keV σ detection significance 60- 64 F5.1 ct/ks CRF The 0.7-7 keV count rate (2) 66- 70 F5.1 ct/ks CRH The 2-10 keV count rate (2) 72- 76 F5.1 ct/ks CRS The 0.7-2 keV count rate (2) 78- 82 F5.1 ct/ks CRFc The corrected 0.7-7 keV count rate (3) 84- 88 F5.1 ct/ks CRHc The corrected 2-10 keV count rate (3) 90- 94 F5.1 ct/ks CRSc The corrected 0.7-2 keV count rate (3) 96-100 F5.1 10-16W/m2 FluxF The 0.7-7keV flux in 10^-13^erg/s/cm^2^ (4) 102-106 F5.1 10-16W/m2 FluxH The 2-10keV flux in 10^-13^erg/s/cm^2^ (4) 108-112 F5.1 10-16W/m2 FluxS The 0.7-2keV flux in 10^-13^erg/s/cm^2^ (4) 114-118 F5.2 --- HR Hardness ratio (5) 120-123 F4.2 --- e_HR Uncertainty in HR 125-127 I3 --- Field Field identification 129 A1 --- f_Field Indicates the target source
Note (1): Including both the statistical and systematic errors. See text (section 3.3) for details. Note (2): Vignetting-corrected count rate at the reference position in the XRT coordinate (8.5' offset) integrated within a radius of 5.9'. Not corrected for Galactic absorption. Note (3): Corrected for Galactic absorption, estimated from Dickey & Lockman (1990ARA&A..28..215D) Note (4): Corrected for Galactic absorption. Converted from the observed count rate in the same band, by assuming a power law with Galactic absorption, with the best-fit photon index derived from the observed hardness ratio Ratio (see section 2.4). Note (5): Ratio = (H-S)/(H+S), where H and S represent the count rate corrected for Galactic absorption in the 2-10keV and 0.7-2keV bands, respectively.
History: From electronic version of the journal * 14-Oct-2001: table1.dat, record #376: target name RD_J13434 corrected into RX_J13434+0001
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 24-Apr-2001
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