J/AJ/133/791 Spitzer photometry of normal & interacting galaxies (Smith+, 2007)
The Spitzer spirals, bridges, and tails interacting galaxy survey:
interaction-induced star formation in the mid-infrared.
Smith B.J., Struck C., Hancock M., Appleton P.N., Charmandaris V.,
Reach W.T.
<Astron. J., 133, 791-817 (2007)>
=2007AJ....133..791S 2007AJ....133..791S
ADC_Keywords: Galaxies, IR ; Galaxies, photometry ; Photometry, infrared
Keywords: galaxies: interactions - galaxies: starburst - infrared: galaxies
Abstract:
We present Spitzer mid-infrared imaging of a sample of 35 tidally
distorted premerger interacting galaxy pairs selected from the Arp
Atlas. We compare their global mid-infrared properties with those of
normal galaxies from the SINGS Spitzer Legacy survey, and separate the
disk emission from that of the tidal features. The [8.0um]-[24um],
[3.6um]-[24um], and [5.8um]-[8.0um] colors of these optically selected
interacting galaxies are redder on average than those of spirals,
implying enhancements to the mass-normalized star formation rates
(SFRs) of a factor of ∼2.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 126 35 Interacting Galaxy Sample
table2.dat 37 42 Normal Galaxy Sample
table5.dat 119 116 Spitzer Flux Densities for Interacting Galaxy Sample
table6.dat 87 40 Spitzer Flux Densities for Normal Galaxy Sample
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See also:
VII/74 : Atlas of Peculiar Galaxies (Arp 1966)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Arp Arp designation of the system
10- 26 A17 --- OName Other Name
27- 31 F5.1 Mpc Dist Distance of the system
33- 37 F5.1 kpc Sep Separation
39- 43 F5.2 [solLum] logL(FIR) ?=- FIR luminosity (1)
45- 95 A51 --- Notes Notes on morphology
97-123 A27 --- SpType Nuclear Spectral Class
124-126 A3 --- Flags Individual notes (2)
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Note (1): Includes the IRAS flux from both galaxies in the pair.
Note (2): Flags as follows:
b = Nuclear spectral type from Dahari (1985ApJS...57..643D 1985ApJS...57..643D).
c = Nuclear spectral type from Keel et al. (1985AJ.....90..708K 1985AJ.....90..708K).
d = The bright galaxy in the Arp (1966, Cat. VII/74) Atlas
photograph of Arp 136 is NGC 5820. This galaxy has a nearby
similar-mass companion, NGC 5821, at the same redshift, outside
of the Arp Atlas field of view. The second small galaxy in the
Arp Atlas image is a background galaxy.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1 A1 --- Type [SEI] Type of galaxy (G1)
3- 13 A11 --- Name Galaxy name
17- 21 A5 --- MType Morphological Type
25- 29 F5.2 Mpc Dist Distance
32 A1 --- l_logL(IR) Limit flag on logL(IR)
33- 37 F5.2 [solLum] logL(IR) Infrared luminosity
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Arp The Arp designation
10- 18 A9 --- Comp Component
20- 42 A23 --- OName Other name
44- 50 F7.2 mJy F3.6um IRAC 3.6 micron flux density
52- 55 F4.2 mJy e_F3.6um Uncertainty in F3.6um
57- 58 A2 --- l_F4.5um [≤ ] Limit flag on F4.5um
59- 65 F7.2 mJy F4.5um ? IRAC 4.5 micron flux density
67- 70 F4.2 mJy e_F4.5um ? Uncertainty in F4.5um
72- 73 A2 --- l_F5.8um [≤ ] Limit flag on F5.8um
74- 79 F6.1 mJy F5.8um IRAC 5.8 micron flux density
81- 85 F5.1 mJy e_F5.8um ? Uncertainty in F5.8 um
87- 88 A2 --- l_F8.0um [≤ ] Limit flag on F8.0um
89- 96 F8.2 mJy F8.0um ? IRAC 8.0 micron flux density
98-103 F6.2 mJy e_F8.0um ? Uncertainty in F8.0um
105-106 A2 --- l_F24um [≤ ] Limit flag on F24um
107-113 F7.1 mJy F24um ? IRAC 24 micron flux density
115-119 F5.1 mJy e_F24um ? Uncertainty in F24 um
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 1 A1 --- Type Galaxy type (G1)
3- 14 A12 --- Name Source name
16- 21 F6.1 mJy F3.6um IRAC 3.6 micron flux density
23- 27 F5.1 mJy e_F3.6um Uncertainty in F3.6um
29- 34 F6.1 mJy F4.5um IRAC 4.5 micron flux density
36- 40 F5.1 mJy e_F4.5um Uncertainty in F4.5um
42- 43 A2 --- l_F5.8um [≤ ] Limit flag on F5.8um
44- 49 F6.1 mJy F5.8um IRAC 5.8 micron flux density
51- 55 F5.1 mJy e_F5.8um ? Uncertainty in F5.8um
57- 58 A2 --- l_F8.0um [≤ ] Limit flag on F8.0um
59- 65 F7.1 mJy F8.0um IRAC 8.0 micron flux density
67- 71 F5.1 mJy e_F8.0um ? Uncertainty in F8.0um
73- 74 A2 --- l_F24um [≤ ] Limit flag on F24um
75- 81 F7.1 mJy F24um IRAC 24 micron flux density
83- 87 F5.1 mJy e_F24um ? Uncertainty in F24um
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Global notes:
Note (G1): Galaxy types as follows:
E = Elliptical/S0
I = Irregular/Sm
S = Spiral
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 08-Jan-2009