J/MNRAS/xxx/xxxx ATCA observations of Fermi unassociated sources (Petrov et al., 2013) ============================================================================================ ATCA observations of Fermi unassociated sources Petrov L. =2013MNRAS.xxx.xxxxP ============================================================================================ ADC_Keywords: VLBI ; Radio sources Keywords: catalogs - surveys -- radio -- gamma-ray Abstract: We report results of the first phase of observations with Australia Telescope Compact Array (ATCA) at 5.5 and 9 GHz of the fields around 411 gamma-ray sources with declinations less than +10 deg detected with Fermi but marked as unassociated in the 2FGL catalogue. We have detected 416 sources with flux densities in a range of 2 mJy to 6 Jy in the fields of 267 gamma-ray sources within their position error ellipses drawn to cover the area of 95 per cent probability of their localisation. Of them, 142 objects were detected in both bands. We found 95 flat spectrum sources in our sample. The majority of them are weak and for this reason were not found in previous surveys. Approximately 1/4 of our sample, 107 objects, have the probability of being associated by more than 10 times than the probability of being a background source found in the vicinity of a gamma-ray object by chance. We present the catalogue of positions of these sources, estimates of their flux densities and spectral indices when available. Description: The catalog of 64 objects detected at sidelobes of the 5.5 GHz beam or at 9.0 GHz only for of 2FGL sources marked as unassociated within the ellipse of 95% probility of their localization. File Summary: --------------------------------------------------------------------------------- FileName Lrecl Records Explanations --------------------------------------------------------------------------------- ReadMe 112 . This file table3.txt 110 64 The catalog of 64 objects detected at both sidelobes of the 5.5 GHz subband or only at 9.0 GHz --------------------------------------------------------------------------------- ================================================================================= Byte-by-byte Description of file: table3.txt --------------------------------------------------------------------------------- Bytes Format Units Label Explanations --------------------------------------------------------------------------------- 1- 12 A12 --- 2FGL_ID 2FGL name of the gamma-ray source ; J2000 14- 23 A10 --- Name IAU name of the radio source ; J2000 25- 27 A2 --- Flag Flag(1) 29- 30 I2 h RAh Hour of Right Ascension (J2000) 32- 33 I2 min RAm Minute of Right Ascension (J2000) 35- 39 F5.2 s RAs Second of Right Ascension (J2000) 41 A1 --- DE- Sign of the Declination (J2000) 42- 43 I2 deg DEd Degree of Declination (J2000) 45- 46 I2 arcmin DEm Arcminute of Declination (J2000) 48- 51 F4.1 arcsec DEs Arcsecond of Declination (J2000) 53- 56 F4.1 arcsec e_RAs Uncertainty in RAs; without cos{delta} factor 58- 61 F4.1 arcsec e_DEs Uncertainty in DEs 64- 66 F4.1 arcmin D Distance between gamma-ray and radio source 69- 71 F3.1 --- Nd Distance between gamma-ray and radio source noramlized by is uncertainty 73- 78 F6.1 --- F1 Flux density of matching source at 1GHz from NVSS, SUMMS, or MGPS-2 catalogues 80- 80 A1 --- C1 Matching 1GHz catalogue label (2) 82- 94 A13 --- I1 ID of a matching object in 1GHz catalogues: NVSS, SUMMS, or MGPS-2 96-114 A19 --- Wn ID of a matching object in WISE catalogue. --------------------------------------------------------------------------------- Note (1): a = a source is high confidence: it has likelihood ratio greater than 10 e = a source was found in a field of extended objects Note (1): N = NVSS M = MGPS-2 S = SUMMS --------------------------------------------------------------------------------- Acknowledgements: Leonid Petrov, 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