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J/MNRAS/459/140   M81, LMC and 3C 273/Coma 17-60keV obs.   (Mereminskiy+, 2016)

INTEGRAL/IBIS deep extragalactic survey: M81, LMC and 3C 273/Coma fields. Mereminskiy I.A., Krivonos R.A., Lutovinov A.A., Sazonov S.Y., Revnivtsev M.G., Sunyaev R.A. <Mon. Not. R. Astron. Soc., 459, 140-150 (2016)> =2016MNRAS.459..140M (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Galaxy catalogs ; X-ray sources Keywords: catalogues - surveys - X-rays: general Abstract: We present results of a deep survey of three extragalactic fields, M81 (exposure of 9.7Ms), Large Magellanic Cloud (6.8 Ms) and 3C 273/Coma (9.3Ms), in the hard X-ray (17-60keV) energy band with the IBIS telescope onboard the INTEGRAL observatory, based on 12 years of observations (2003-2015). The combined survey reaches a 4σ peak sensitivity of 0.18mCrab (2.6x10-12erg/s/cm2) and sensitivity better than 0.25 and 0.87mCrab over 10 per cent and 90 per cent of its full area of 4900 deg2, respectively. We have detected in total 147 sources at S/N>4σ, including 37 sources observed in hard X-rays for the first time. The survey is dominated by extragalactic sources, mostly active galactic nuclei (AGN). The sample of identified sources contains 98 AGN (including 64 Seyfert galaxies, seven low-ionization nuclear emission-line region galaxies, three X-ray bright optically normal galaxies, 16 blazars and eight AGN of unclear optical class), two galaxy clusters (Coma and Abell 3266), 17 objects located in the Large and Small Magellanic Clouds (13 high- and two low-mass X-ray binaries and two X-ray pulsars), three Galactic cataclysmic variables, one ultraluminous X-ray source (M82 X-1) and one blended source (SWIFT J1105.7+5854). The nature of 25 sources remains unknown, so that the survey's identification is currently complete at 83 per cent. We have constructed AGN number-flux relations (log N-log S) and calculated AGN number densities in the local Universe for the entire survey and for each of the three extragalactic fields. Description: For the current survey we used all publicly available data acquired with INTEGRAL before 2015 June (spacecraft revolution 1553). The data from ISGRI, the first detector layer of the IBIS telescope, were utilized, as having the highest sensitivity at hard X-rays. We selected 17-60keV as our working energy band where ISGRI has the highest effective area. We analysed the mosaic maps for positive excesses with S/N>4σ and found 147 source candidates. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 149 147 List of the detected sources with S/N>4 in the combined survey of three fields, M81, LMC and 3C 273/Coma
See also: J/ApJS/207/19 : Hard X-ray survey from Swift-BAT 2004-2010 (Baumgartner+, 2013) J/ApJS/223/15 : 8yr INTEGRAL/IBIS soft gamma-ray source obs. (Bird+, 2016) J/A+A/524/A64 : The 54-month Palermo BAT-survey catalogue (Cusumano+, 2010) http://isdc.unige.ch/integral/catalog/39/catalog.html : INTEGRAL source catalog Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Field Field (M81, LMC or 3C 273/Coma) 13- 15 I3 --- Seq Sequential source number in the catalog 16 A1 --- n_Seq [*] Note for sources in spatial confusion (1) 18- 36 A19 --- Name Name (2) 38 A1 --- n_Name [*] Note for previously unknown sources in 17-60keV band (3) 40- 46 F7.3 deg RAdeg Right ascension (J2000) 48- 54 F7.3 deg DEdeg Declination (J2000) 56- 60 F5.1 --- S/N Signal-to-noise ratio of the detected source 62- 66 F5.2 mCrab Flux Average source flux in 17-60keV band 68- 71 F4.2 mCrab e_Flux rms uncertainty on Flux 73- 76 F4.1 Mpc Dist ?=- Distance 78- 83 F6.4 --- z ? Redshift 85- 89 F5.2 [10-7W] logL ? Luminosity at 17-60keV band (4) 91-100 A10 --- Type Type (5) 102-149 A48 --- Notes Notes (6)
Note (1): * for sources in spatial confusion. The measured flux of these sources should be taken with the caution Note (2): For sources previously detected in hard X-rays, we use their catalogue or common name. We assign an "IGR" name for sources detected for the first time. Note (3): * for sources previously unknown in hard X-ray band (17-60keV). Note (4): For the calculation of luminosities, we used the metric distance for nearby sources (z≤0.01) and the luminosity distance estimated from the redshift for the more distant sources. Distances and redshifts were obtained from the SIMBAD and NED data bases. We only calculated luminosities for sources classified as AGN; a standard {LAMBDA}CDM cosmology with H0=67.8km/s/Mpc, {OMEGA}m=0.308 was used. Note (5): Types as follows: HMXB = high-mass X-ray binary LMXB = low-mass X-ray binary CV = cataclysmic variable pulsar = rotation powered X-ray pulsar cluster = cluster of galaxies Sy1 = Seyfert galaxy of type 1 Sy2 = Seyfert galaxy of type 2 Sy1.2 = Seyfert galaxy of type 1.2 Sy1.5 = Seyfert galaxy of type 1.5 Sy1.8 = Seyfert galaxy of type 1.8 Sy1.9 = Seyfert galaxy of type 1.9 NLS1 = narrow-line Seyfert 1 galaxies LINER = low-ionization nuclear emission-line region galaxy LINER? = source classified as LINER based on optical observations but show unusually high hard X-ray luminosities - more than 1043erg/s XBONG = X-ray bright optically normal galaxy blazar = BL Lac object or flat-spectrum radio quasar NLRG = narrow emission-line radio-galaxy. AGN = for all sources associated with galaxies but without known activity type Note (6): For known sources, we present an optical or IR counterpart name. For sources detected for the first time, we specify the soft X-ray counterpart and associated optical association. Some additional remarks are also provided.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 12-Jun-2017
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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