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Detailed Description of J/ApJS/181/227 : Catalog of 24um sources toward Galactic Center (Hinz+, 2009)
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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)
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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
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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
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(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 23-Oct-2009