J/ApJ/642/158 IRAC flux densities in IC2163 and NGC2207 (Elmegreen+, 2006)
Spitzer Space Telescope IRAC and MIPS observations of the interacting galaxies
IC 2163 and NGC 2207: clumpy emission.
Elmegreen D.M., Elmegreen B.G., Kaufman M., Sheth K., Struck C.,
Thomasson M., Brinks E.
<Astrophys. J., 642, 158-170 (2006)>
=2006ApJ...642..158E 2006ApJ...642..158E
ADC_Keywords: Galaxies, IR
Keywords: galaxies: individual (IC 2163, NGC 2207) - galaxies: interactions -
infrared: galaxies
Abstract:
IC 2163 and NGC 2207 are interacting galaxies that have been well
studied at optical and radio wavelengths and simulated in numerical
models to reproduce the observed kinematics and morphological
features. Spitzer IRAC and MIPS observations reported here show over
200 bright clumps from young star complexes. The brightest IR clump is
a morphologically peculiar region of star formation in the western arm
of NGC 2207. This clump, which dominates the Hα and radio
continuum emission from both galaxies, accounts for ∼12% of the total
24µm flux. Nearly half of the clumps are regularly spaced along
some filamentary structure, whether in the starburst oval of IC 2163
or in the thin spiral arms of NGC 2207.
Description:
Observations were made with the Spitzer IRAC on 2005 February 22 and
MIPS on 2005 March 11.
Objects:
-----------------------------------------
RA (2000) DE Designation(s)
-----------------------------------------
06 16 27.7 -21 22 31 IC 2163
06 16 22.1 -21 22 20 NGC 2207
-----------------------------------------
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 54 225 Measured clump locations and IRAC flux densities
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See also:
J/AJ/121/182 : Photometry of Clusters in IC2163 and NGC2207 (Elmegreen+, 2001)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [EEK2006] Clump identification number
([EEK2006] NNN in Simbad)
5 A1 --- f_[EEK2006] [a] Indicates feature "i"
7 I1 h RAh Hour of Right Ascension (J2000.0)
9- 10 I2 min RAm Minute of Right Ascension (J2000.0)
12- 17 F6.3 s RAs Second of Right Ascension (J2000.0)
19 A1 --- DE- Sign of the Declination (J2000.0)
20- 21 I2 deg DEd Degree of Declination (J2000.0)
23- 24 I2 arcmin DEm Arcminute of Declination (J2000.0)
26- 30 F5.2 arcsec DEs Arcsecond of Declination (J2000.0)
32- 35 F4.2 mJy S3.6um ?=0.00 Flux density at 3.6 microns (1)
37- 40 F4.2 mJy S4.5um ?=0.00 Flux density at 4.5 microns (1)
42- 46 F5.2 mJy S5.8um ?=0.00 Flux density at 5.8 microns (1)
48- 52 F5.2 mJy S8.0um ?=0.00 Flux density at 8.0 microns (1)
54 A1 --- Flag [b] Flux density flag (1)
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Note (1): 0.00 in all of the flux density measurements indicates presence
on image but too faint to measure Flux Density relative to sky.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 02-Jun-2008