InfraRed source catalog of the AKARI NEP-Wide field (Kim+, 2012) ================================================================================ North Ecliptic Pole Wide Survey of AKARI: a near- and mid-IR source catalog Kim S.J., Lee H.M., Matsuhara H., Wada T., Oyabu S., Im M., Jeon Y., Kang E., Ko J., Lee M.G., Takagi T., Pearson C.P., White G.J., Jeong W.-S., Serjeant S., Nakagawa T., Ohyama Y., Goto T., Takeuchi T.T., Pollo A., Solarz A., Pepiak A. =2012A&A...548A..29K ================================================================================ ADC_Keywords: Surveys ; Infrared sources ; Photometry, infrared ; Photometry, UBVRI Mission_Name: AKARI Keywords: methods: data analysis - catalogs - infrared: galaxies - surveys Description: The InfraRed Camera (IRC) onboard AKARI has a comprehensive wavelength coverage with nine photometric bands at 2-24 micron. Based on the North Ecliptic Pole Wide (NEP-Wide) survey of AKARI (which covered a 5.4 sq.deg circular area centered on the NEP), we constructed a catalog for the infrared sources found in the survey area. Here we present the catalog containing about 114,800 sources detected at the nine IRC filter bands. This is a band-merged catalog including all of the photometry results from the supplementary optical data as well as the IRC bands. To validate a source at a given IRC band, we searched counterparts in the other bands. The band-merging was done based on this cross-matching of the sources among the filter bands. The NIR sources having no counterpart in any other bands are finally excluded to avoid the false objects. See the reference for the details of the NEP-Wide survey and data reduction. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe.txt 80 153 This file AKARI-NEPW-V1.txt 501 114794 A band-merged catalog for the infrared sources in the NEP-Wide field -------------------------------------------------------------------------------- See also: II/297 : AKARI/IRC mid-IR all-sky Survey (ISAS/JAXA, 2010) II/298 : AKARI/FIS All-Sky Survey Point Source Cat. (ISAS/JAXA, 2010) J/A+A/537/A24 : AKARI NEP-Deep field mid-IR source catalogue (Takagi+, 2012) J/ApJS/190/166 : Optical catalog of AKARI NEP-Wide survey (Jeon+, 2010) Byte-by-byte Description of file: -------------------------------------------------------------------------------- Bytes Format Units Label Explanations ------------------------------------------------------------------------------- 1- 11 I11 --- OBJID Internal Source ID 12- 33 A22 --- OBJNAME Source name 34- 45 F12.5 deg RA Right Ascension (J2000) (1) 46- 57 F12.5 deg Dec Declination (J2000) (2) 58- 69 E12.2 Jy FLUX02 Flux in AKARI/N2 band (3) 70- 81 E12.2 Jy e_FLUX02 Flux error in N2 band (4) 82- 86 I5 --- f_FLUX02 [?=-1] Flag for the Flux in N2 band (5) 87- 98 E12.2 Jy FLUX03 Flux in AKARI/N3 band (3) 99-110 E12.2 Jy e_FLUX03 Flux error in N3 band (4) 111-115 I5 --- f_FLUX03 [?=-1] Flag for the Flux in N3 band (5) 116-127 E12.2 Jy FLUX04 Flux in AKARI/N4 band (3) 128-139 E12.2 Jy e_FLUX04 Flux error in N4 band (4) 140-144 I5 --- f_FLUX04 [?=-1] Flag for the Flux in N4 band (5) 145-156 E12.2 Jy FLUX07 Flux in AKARI/S7 band (3) 157-168 E12.2 Jy e_FLUX07 Flux error in S7 band (4) 169-173 I5 --- f_FLUX07 [?=-1] Flag for the Flux in S7 band (5) 174-185 E12.2 Jy FLUX09 Flux in AKARI/S9W band (3) 186-197 E12.2 Jy e_FLUX09 Flux error in S9W band (4) 198-202 I5 --- f_FLUX09 [?=-1] Flag for the Flux in S9W band (5) 203-214 E12.2 Jy FLUX11 Flux in AKARI/S11 band (3) 215-226 E12.2 Jy e_FLUX11 Flux error in S11 band (4) 227-231 I5 --- f_FLUX11 [?=-1] Flag for the Flux in S11 band (5) 232-243 E12.2 Jy FLUX15 Flux in AKARI/L15 band (3) 244-255 E12.2 Jy e_FLUX15 Flux error in L15 band (4) 256-260 I5 --- f_FLUX15 [?=-1] Flag for the Flux in L15 band (5) 261-272 E12.2 Jy FLUX18 Flux in AKARI/L18W band (3) 273-284 E12.2 Jy e_FLUX18 Flux error in L18W band (4) 285-289 I5 --- f_FLUX18 [?=-1] Flag for the Flux in L18W band (5) 290-301 E12.2 Jy FLUX24 Flux in AKARI/L24 band (3) 302-313 E12.2 Jy e_FLUX24 Flux error in L24 band (4) 314-318 I5 --- f_FLUX24 [?=-1] Flag for the Flux in L24 band (5) 319-323 I5 --- FLAGNIR Caution about the NIR bands photometry (6) 324-333 F10.2 mag umag [?=99.00] Flux in CFHT/u* band in ABmag (7) 334-343 F10.2 mag e_umag [?=99.00] Flux error in u* band (7) 344-353 F10.2 mag gmag [?=99.00] Flux in CFHT/g' band in ABmag (7) 354-363 F10.2 mag e_gmag [?=99.00] Flux error in g' band (7) 364-373 F10.2 mag rmag [?=99.00] Flux in CFHT/r' band in ABmag (7) 374-383 F10.2 mag e_rmag [?=99.00] Flux error in r' band (7) 384-393 F10.2 mag imag [?=99.00] Flux in CFHT/i' band in ABmag (7) 394-403 F10.2 mag e_imag [?=99.00] Flux error in i' band (7) 404-413 F10.2 mag zmag [?=99.00] Flux in CFHT/z' band in ABmag (7) 414-423 F10.2 mag e_zmag [?=99.00] Flux error in z' band (7) 424-433 F10.2 mag Bmag [?=99.00] Flux in Maidanak/B band in ABmag (7) 434-443 F10.2 mag e_Bmag [?=99.00] Flux error in B band (7) 444-453 F10.2 mag Rmag [?=99.00] Flux in Maidanak/R band in ABmag (7) 454-463 F10.2 mag e_Rmag [?=99.00] Flux error in R band (7) 464-473 F10.2 mag Imag [?=99.00] Flux in Maidanak/I band in ABmag (7) 474-483 F10.2 mag e_Imag [?=99.00] Flux error in I band (7) 484-490 F7.2 --- stl [?=-1.00] Stellarity measured from the optical data (1=point and 0=extended) (8) 491-494 I4 --- nOpt Number of optical sources found within 3" 495-501 F7.2 arcsec dSec [?=-1.00] Angular separation between AKARI source and the nearest optical counterpart (9) -------------------------------------------------------------------------------- Note (1), (2): The coordinates for each source are based on N2 band astrometry. If there is no detection in the N2 image, the coordinates were derived from the shortest wavelength with an identification. Note (3), (4): The total flux (i.e., FLUX_AUTO) measured by SExtractor and rms error. The flux fainter than the detection limit is replaced with '0.00e+00'. Non-detection also has the zero-flux but their flag is '-1'. Note (5): Photometric flag derived by SExtractor as follows: 0 = no problem 1 = the source has close neighbors, bright and close enough to bias the 'FLUX_AUTO' or bad pixels (about 10% of the integrated area affected) 2 = the object was blended with very close neighbors 3 = 1+2 -1 = not detected, no photometric result Note (6): Flag to indicate partially damaged sources in NIR bands photometry during the cosmic-ray rejection, de-MUXbleed, and etc, as follows: 0 = no damage in any bands 2 = in N2 band 3 = in N3 band 4 = in N4 band 6 = in more than one band Note (7): Non-detection is indicated by 99.00. Note (8): Stellarity information provided by SExtractor with the optical data from CFHT and Maidanak. If a source has optical counterparts in both the CFHT and Maidanak data, the stellarity determined from the CFHT data is used. If there is no optical counterpart (nOpt = 0), it is indicated by stl = -1.00. Note (9): Without any optical counterpart (nOpt = 0), it is indicated by dsec = -1.00. -------------------------------------------------------------------------------- History: * 15-Sep-2012: Original version ================================================================================ (End) Seong Jin Kim [Seoul National Univ.] 15-Sep-2012