J/A+A/507/713 Galaxies with strong PAH emission (Haas+, 2009)
Polycyclic aromatic hydrocarbon selected galaxies.
Haas M., Leipski C., Siebenmorgen R., Meusinger H., Drass H., Chini R.
<Astron. Astrophys., 507, 713-721 (2009)>
=2009A&A...507..713H 2009A&A...507..713H
ADC_Keywords: Galaxies, IR ; Photometry, infrared ; Interstellar medium
Keywords: galaxies: active - infrared: galaxies
Abstract:
This is the fourth in a series of papers based on the ISOCAM Parallel
Survey at 6.7um. While the first three papers have been devoted
to active galactic nuclei (AGN), here we report on emission-line
galaxies without AGN signatures in their optical spectra.
Polycyclic aromatic hydrocarbon (PAH) emission has been found in both
starbursts and modestly starforming galaxies, but the relation between
starforming activity and PAH luminosity is still a matter of debate.
The different correlation degrees could be caused by the variety of
optical and far-infrared sample selection criteria. In order to obtain
a census of the typical properties of PAH emitting galaxies, we here
study moderately distant galaxies which have been selected by their
PAH emission.
Description:
Combining the ISOCAM Parallel Survey at 6.7um with 2MASS we have
colour-selected a sample of 120 candidates for strong PAH emission.
We obtained optical and mid-infrared spectra of 75 and 19 sources,
respectively, and analysed IRAS-ADDSCANs and available Spitzer
3.6-160um photometry.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 104 120 The sample of PAH selected galaxies and observed
properties
table2.dat 49 19 Parameters from the Spitzer IRS spectra
table3.dat 56 14 Photometry from Spitzer IRAC (3.6-8um) and
MIPS (24-160um)
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 16 A16 --- 2MASS 2MASS name
17 A1 --- n_2MASS [u] u for ULIRG
18- 22 F5.2 Jy LW2 ISO/LW2 (5-8.5um) flux density (1)
24- 28 F5.2 mag Hmag 2MASS H magnitude
30- 34 F5.2 mag Ksmag 2MASS Ks magnitude
36 A1 --- l_F60 Limit flag on F60um
37- 40 I4 mJy F60 ? Flux density at 60um (two sources are not
covered by IRAS)
42- 45 I4 mJy F100 ? Flux density at 100um
47- 51 F5.3 --- z ? Redshift (spectroscopic)
53- 57 F5.2 aW/m2/nm FHa ? Hα emission line flux (2)
59- 63 F5.2 aW/m2/nm FHb ? Hβ emission line flux (2)
65- 69 F5.2 aW/m2/nm F[OII] ? [OII] emission line flux (2)
71- 76 F6.2 0.1nm EWHa ? Hα equivalent width (3)
78- 83 F6.2 0.1nm EW[OII] ? [OII] equivalent width (3)
85- 88 F4.2 0.1nm EWd ? Hδ equivalent width (4)
90- 93 F4.2 0.1nm EWCa ? CaII K equivalent width (4)
95-104 A10 --- Morph Morphology (5)
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Note (1): LW2 zero magnitude corresponds to 90Jy,
i.e. 0.9mJy corresponds to 12.5mag (Vega system).
Note (2): Measured in the 1-2" wide slit, and expressed in
10-16erg/cm2/s/Å = 10-18W/2/nm.
The uncertainties are ∼5-10%.
Note (3): Negative EW values correspond to emission lines.
Mean uncertainties are ∼10%
Note (4): Mean uncertainties are ∼25%
Note (5): Morphological appearance in SDSS images. Definitions are as follows:
regular = regular sources are extended with >5" diameter. Regular
sources have between face-on and intermediate inclination
edge-on = edge-on sources extended with >5" diameter
irregular = extended with >5" diameter
compact = regular and < 5" diameter
tail = irregular, but with bright connected tidal tail(s)
double = two equally bright sources
companion = another fainter source nearby (<10")
group = at least two companions
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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- 16 A16 --- 2MASS 2MASS name
17 A1 --- u_2MASS [*] *: absolute photometry uncertain
19- 22 F4.2 um LW2/6-10 ? Fraction of the 6-10um flux seen in the
LW2 passband (5-8.5um)
24- 28 F5.2 mJy F15 ? Flux integrated over the ISOCAM/LW3
passband (12-18um) (1)
30- 33 F4.1 mJy F24 Flux at 24um (1)
35- 39 F5.1 mJy F35 Flux at 35um (1)
41 A1 --- l_F[NeIII] Limit flag on F[NeIII]
42- 44 F3.1 aW/m2 F[NeIII] ? [Ne III] emission flux (2)
46- 49 F4.1 aW/m2 F[SIII] ? [S III] emission flux (2)
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Note (1): Uncertainty of the continua F15, F24, and F35 are about 10%.
Note (2): In 10-15erg/cm2/s = 10-18W/m2; ∼10-20% uncertainties.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 16 A16 --- 2MASS 2MASS name
17 A1 --- n_2MASS [*] *: Median redshift of the sample
(z=0.105) adopted
19- 23 F5.3 mJy F3.6 ? Spitzer/IRAC 3.6um flux density (1)
25- 29 F5.3 mJy F4.5 ? Spitzer/IRAC 4.5um flux density (1)
31- 35 F5.3 mJy F5.8 ? Spitzer/IRAC 5.8um flux density (1)
37- 40 F4.2 mJy F8.0 ? Spitzer/IRAC 8.0um flux density (1)
42- 45 F4.2 mJy F24 ? Spitzer/MIPS 24um flux density (2)
47- 50 F4.1 mJy F70 ? Spitzer/MIPS 70um flux density (2)
52- 56 F5.1 mJy F160 ? Spitzer/MIPS 160um flux density (2)
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Note (1): Uncertainties are about 10% at 3.6-8um.
Note (2): Uncertainties are less than 30% at 24-160um.
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History:
From electronic version of the journal
References:
Hass et al., Paper I 2004A&A...419L..49H 2004A&A...419L..49H
Leipski et al., Paper II 2005A&A...440L...5L 2005A&A...440L...5L
Leipski et al., Paper III 2007A&A...464..895L 2007A&A...464..895L
(End) Patricia Vannier [CDS] 12-Feb-2010