ACDS V10.0 - Detailed Description of J/ApJS/181/227

ACDS V10.0 - Sun Jan 19 12:18:06 CET 2025

| # Detailed Description of J/ApJS/181/227 : Catalog of 24um sources toward Galactic Center (Hinz+, 2009) |

Note : this is the description file of the original catalog. This HTML page corresponds well to the original description, but some minor changes in the format may have been introduced in the FITS output files in order to allow for arithmetic operations on quantities such as coordinates and times. h:m:s and d:m:s units are normally converted into degrees, and YYYY-MM-DD into julian days.
Similarly, some slight changes may have been introduced in the units; the value given in the HTML files supersedes the value indicated in the ReadMe file for this catalogue.

    J/ApJS/181/227  Catalog of 24um sources toward Galactic Center  (Hinz+, 2009)
    ================================================================================
    A catalog of 24 µm sources toward the Galactic center.
        Hinz J.L., Rieke G.H., Yusef-Zadeh F., Hewitt J., Balog Z., Block M.
       <Astrophys. J. Suppl. Ser., 181, 227-232 (2009)>
       =2009ApJS..181..227H
    ================================================================================
    ADC_Keywords: Infrared sources

    Mission_Name: Spitzer

    Keywords: Galaxy: center - infrared: stars

    Abstract:
        We present a ~1.5x8°2 (220x1195pc2) multiband imaging
        photometer for Spitzer 24um image of the Galactic center (GC) and an
        accompanying point-source list. This image is the highest spatial
        resolution (6"~0.25pc) and sensitivity map ever taken across the
        GC at this wavelength, showing the emission by warm dust in
        unprecedented detail. Over 120000 point sources are identified in
        this catalog with signal-to-noise ratios greater than five and flux
        densities from 0.6mJy to 9Jy.

    Description:
        Starting with raw data from the Spitzer Science Center (SSC), data
        reduction was performed using version 3.02 of the MIPS (multiband imaging
        photometer for Spitzer) data analysis tool.

    File Summary:

           FileName      Lrecl  Records   Explanations

    ×                   80        .   This file
    × ReadMe            80        .   This file
    × table2.dat        89   120883   Point source catalog at 24microns

    See also:
            II/295 : Spitzer IRAC survey of the galactic center (Ramirez+, 2008)
            II/293 : GLIMPSE Source Catalog (I + II) (IPAC 2008)
           VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
            II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
     J/A+A/499/483 : NIR observations of sources in galactic center (Buchholz+ 2009)

    Byte-by-byte Description of file:  table2.dat

       Bytes Format Units    Label   Explanations

       1- 16  A16   ---      2MASS   2MASS identification (HHMMSSss+DDMMSSs)
                                      if any (1)
      18- 27  F10.6 deg      RAdeg   Right Ascension in decimal degrees (J2000)
      29- 38  F10.6 deg      DEdeg   Declination in decimal degrees (J2000)
      40- 49  E10.5 arcsec  e_RAdeg  Calculated 1{sigma} error in RAdeg (2)
      51- 60  E10.5 arcsec  e_DEdeg  Calculated 1{sigma} error in DEdeg (2)
      62- 70  F9.7  Jy       F24um   MIPS 24micron band flux density
      72- 81  E10.5 Jy      e_F24um  Calculated 1{sigma} error in F24um (2)
      83- 89  F7.4  ---      Corr    [-1,1] Correlation to the input PSF (3)

    Note (1): Positions for sources were compared and cross-correlated with the
         Two Micron All Sky Survey (2MASS; Cat. II/246) to test for possible
         distortion effects or other systematic problems. Over the entire
         field, we find an average systematic offset of +1.6" in right
         ascension and +0.5" in declination between the 2MASS and 24um sources.
    Note (2): These errors are the Starfinder nominal fitting errors only.
         More representative uncertainties are of order 7% for the flux
         densities and 0.6" for the positions (see the discussion in Section 4.1).
    Note (3): Higher numbers indicate closer matches, with 1 being perfect.

    Nomenclature note:
        Objects = <[HRY2009] DDD.dddddd+DD.dddddd> in Simbad

    History:
        From electronic version of the journal
    ================================================================================
    (End)                 Greg Schwarz [AAS], Emmanuelle Perret [CDS]    23-Oct-2009