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J/ApJS/190/147         Mid-IR galaxy morphology from S4G         (Buta+, 2010)

Mid-infrared galaxy morphology from the Spitzer survey of stellar structure in galaxies (S4G): the imprint of the De Vaucouleurs revised Hubble-Sandage classification system at 3.6 µm. Buta R.J., Sheth K., Regan M., Hinz J.L., Gil De Paz A., Menendez-Delmestre K., Munoz-Mateos J.-C., Seibert M., Laurikainen E., Salo H., Gadotti D.A., Athanassoula E., Bosma A., Knapen J.H., Ho L.C., Madore B.F., Elmegreen D.M., Masters K.L., Comeron S., Aravena M., Kim T. <Astrophys. J. Suppl. Ser., 190, 147-165 (2010)> =2010ApJS..190..147B
ADC_Keywords: Morphology ; Galaxies, IR ; Atlases Keywords: galaxies: bulges - galaxies: dwarf - galaxies: irregular - galaxies: elliptical and lenticular, cD - galaxies: spiral - galaxies: structure Abstract: Spitzer Space Telescope Infrared Array Camera imaging provides an opportunity to study all known morphological types of galaxies in the mid-IR at a depth significantly better than ground-based near-infrared and optical images. The goal of this study is to examine the imprint of the de Vaucouleurs classification volume in the 3.6um band, which is the best Spitzer waveband for galactic stellar mass morphology owing to its depth and its reddening-free sensitivity mainly to older stars. For this purpose, we have prepared classification images for 207 galaxies from the Spitzer archive, most of which are formally part of the Spitzer Survey of Stellar Structure in Galaxies (S4G), a Spitzer post-cryogenic ("warm") mission Exploration Science Legacy Program survey of 2331 galaxies closer than 40Mpc. For the purposes of morphology, the galaxies are interpreted as if the images are blue light, the historical waveband for classical galaxy classification studies. We find that 3.6um classifications are well correlated with blue-light classifications, to the point where the essential features of many galaxies look very similar in the two very different wavelength regimes. We present an atlas of all of the 207 galaxies analyzed here and bring attention to special features or galaxy types, such as nuclear rings, pseudobulges, flocculent spiral galaxies, I0 galaxies, double-stage and double-variety galaxies, and outer rings, that are particularly distinctive in the mid-IR. Description: The goals of the S4G project are described by Sheth et al. (2010, PASP, submitted). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 100 207 3.6 micron morphological classifications
See also: VII/62 : Morphological Cat. of Gal. (MCG) (Vorontsov-Velyaminov+, 1962-1974) VII/112 : RC2 Catalogue (de Vaucouleurs+ 1976) VII/155 : Third Reference Cat. of Bright Galaxies (RC3) (de Vaucouleurs+, 1991) J/AJ/108/2128 : RC3 corrections and additions (Corwin+ 1994) J/A+A/361/863 : Galaxies morphology and IR photometry. V. (Gavazzi+, 2000) J/ApJS/143/73 : Morphology of spiral galaxies (Eskridge+, 2002) J/AJ/128/163 : Galaxy morphological classification (Lotz+, 2004) J/AJ/131/143 : Morphology of galaxies (Homeier+, 2006) J/ApJ/652/1068 : Morphology of cool and warm infrared galaxies (Rahman+, 2006) J/AJ/134/1508 : Galaxy morphology catalog (van den Berg+, 2007) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Name Galaxy name 13 A1 --- f_Name Flag on Name (1) 15- 17 I3 --- Fig1 Figure 1 plate number 19- 40 A22 --- S4G The S^4^G mid-IR type (2) 42- 54 A13 --- RC3 The decoded RC3 (Cat. VII/155) blue type 56- 68 A13 --- RSA The RSA (Sandage & Tammann, 1981RSA...C...0000S) blue type 70- 87 A18 --- dVA The dVA (Buta et al., type; mostly blue, some visual 89-100 A12 --- OSU Eskridge et al., 2002, (Cat. J/ApJS/143/73) OSUBGS H-band type
Note (1): Flag as follows: b = PRG indicates polar ring galaxy (see Whitmore et al., 1990AJ....100.1489W); c = double-stage: SB(s)cd/S0-; d = NGC 3804 in RC3 (Cat. VII/155); e = double-stage: SB(s)m/S0/a; f = NGC 4517 in RC3 (Cat. VII/155) and RSA (1981RSA...C...0000S); g = double-stage: SB(rs)m/S0/a; h = double-stage: SA(rs)ab/S0/a; i = double-stage: SA(s)b/S0o; j = disky inner regions only; boxy at larger radii; k = apparent bar could also be inner disk. Note (2): Using the precepts and notation of the dVA. A "preceding a character is equivalent to an underlining of that character (meaning an emphasis of that characteristic) as in de Vaucouleurs 1963ApJS....8...31D).
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 30-Sep-2010
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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