J/PASJ/65/113 0.006≤z≤0.8 IR galaxies with AKARI (Toba+, 2013)
The 9 and 18 micrometer luminosity functions of various types of galaxies with
AKARI: implication for the dust torus structure of AGN.
Toba Y., Oyabu S., Matsuhara H., Malkan M.A., Ishihara D., Wada T.,
Ohyama Y., Takita S., Yamauchi C.
<Publ. Astron. Soc. Jap., 65, 113-113 (2013)>
=2013PASJ...65..113T 2013PASJ...65..113T
ADC_Keywords: Galaxies, IR ; Photometry, infrared
Keywords: galaxies: active - galaxies: luminosity function, mass function -
galaxies: nuclei - infrared: galaxies
Abstract:
We present the 9 and 18um luminosity functions (LFs) of galaxies at
0.006≤z≤0.8 (with an average redshift of ∼0.04) using the AKARI
mid-infrared all-sky survey catalog. We selected 243 galaxies at 9um
and 255 galaxies at 18um from the Sloan Digital Sky Survey (SDSS)
spectroscopy region. These galaxies were then classified by their
optical emission lines, such as the line width of Hα or by their
emission line ratios of [OIII]/Hβ and [NII]/Hα into five
types: Type 1 active galactic nuclei (AGN) (Type 1); Type 2 AGN (Type
2); low-ionization narrow emission line galaxies (LINER); galaxies
with both star formation and narrow-line AGN activity (composite
galaxies); and star-forming galaxies (SF). We found that (i) the
number density ratio of Type 2 to Type 1 AGNs is 1.73±0.36, which is
larger than a result obtained from the optical LF and (ii) this ratio
decreases with increasing 18um luminosity.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table7.dat 86 348 List of 348 galaxies
refs.dat 81 27 References
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See also:
II/297 : AKARI/IRC mid-IR all-sky Survey (ISAS/JAXA, 2010)
Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 27 A27 --- Name Source name
29- 30 I2 h RAh Right ascension (J2000)
32- 33 I2 min RAm Right ascension (J2000)
35- 39 F5.2 s RAs Right ascension (J2000)
41 A1 --- DE- Declination sign (J2000)
42- 43 I2 deg DEd Declination (J2000)
45- 46 I2 arcmin DEm Declination (J2000)
48- 51 F4.1 arcsec DEs Declination (J2000)
53- 57 F5.3 Jy F9um ?=- AKARI S9W flux at 9um
59- 63 F5.3 Jy F18um ?=- AKARI L18W flux at 18um
65- 69 F5.3 --- z [0.006/0.593] Redshift (spectroscopic)
71- 79 A9 --- Type Galaxy type (1)
82- 86 A5 --- Ref References, in refs.dat file
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Note (1): the type is:
PN = Planetary Nebula (not a galaxy)
LINER = Low-Ionization Narrow Emission-line galaxy
SF = star-forming galaxy
Type 1 = Active Galaxy Nucleus of type 1
Type 2 = Active Galaxy Nucleus of type 2
Composite = shows both AGN and star-forming characteristics
Unknown = unclassified
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Ref Reference number
4- 22 A19 --- BibCode BIbCode
24- 46 A23 --- Aut Author's name
48- 81 A34 --- Com Comments
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 07-Mar-2014