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J/MNRAS/410/166    Morphological types from Galaxy Zoo 1       (Lintott+, 2011)

Galaxy Zoo 1: data release of morphological classifications for nearly 900 000 galaxies. Lintott C., Schawinski K., Bamford S., Slosar A., Land K., Thomas D., Edmondson E., Masters K., Nichol R.C., Raddick M.J., Szalay A., Andreescu D., Murray P., Vandenberg J. <Mon. Not. R. Astron. Soc., 410, 166-178 (2011)> =2011MNRAS.410..166L
ADC_Keywords: Surveys ; Galaxies, photometry ; Photometry, SDSS ; Morphology Keywords: methods: data analysis - galaxies: elliptical and lenticular, cD - galaxies: general - galaxies: spiral Abstract: Morphology is a powerful indicator of a galaxy's dynamical and merger history. It is strongly correlated with many physical parameters, including mass, star formation history and the distribution of mass. The Galaxy Zoo project collected simple morphological classifications of nearly 900000 galaxies drawn from the Sloan Digital Sky Survey, contributed by hundreds of thousands of volunteers. This large number of classifications allows us to exclude classifier error, and measure the influence of subtle biases inherent in morphological classification. This paper presents the data collected by the project, alongside measures of classification accuracy and bias. The data are now publicly available and full catalogues can be downloaded in electronic format from http://data.galaxyzoo.org . File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 105 667944 Classifications of Main Galaxy Sample (MGS) galaxies with spectra table3.dat 105 225268 Classifications of additional galaxies table4.dat 84 667944 Measures of confidence table5.dat 134 91303 Classification of mirrored images during bias study table6.dat 88 91303 Classification of monochrome images during bias study table7.dat 103 893212 Combined votes including bias study data fits/* 0 6 FITS version of the tables
See also: J/MNRAS/396/818 : Blue early-type galaxies in Galaxy Zoo (Schawinski+ 2009) J/MNRAS/405/783 : Passive red spirals in Galaxy Zoo (Masters+, 2010) http://data.galaxyzoo.org : Galaxy Zoo 1 Home Page Byte-by-byte Description of file: table[23].dat
Bytes Format Units Label Explanations
1- 18 A18 --- objID SDSS objID 20- 21 I2 h RAh SDSS right ascension (J2000) 23- 24 I2 min RAm SDSS right ascension (J2000) 26- 30 F5.2 s RAs SDSS right ascension (J2000) 32 A1 --- DE- SDSS declination (J2000) 33- 34 I2 deg DEd SDSS declination (J2000) 36- 37 I2 arcmin DEm SDSS declination (J2000) 39- 42 F4.1 arcsec DEs SDSS declination (J2000) 44- 45 I2 --- N Total number of votes for each object 47- 51 F5.3 --- pE Fraction of votes for Elliptical category 53- 57 F5.3 --- pcS Fraction of votes for ClockWise spiral 59- 63 F5.3 --- paS Fraction of votes for AntiClockWise spiral 65- 69 F5.3 --- pEdg Fraction of votes for Edge-on spirals 71- 75 F5.3 --- pDK Fraction of votes for Don't Know 77- 81 F5.3 --- pMg Fraction of votes for Merger 83- 87 F5.3 --- pS Fraction of votes for combined Spiral (S=Edg+cS+aS) category 89- 93 F5.3 --- pE0 ? Fraction of votes for Elliptical categories following the debiasing procedure described in Section 3.1 95- 99 F5.3 --- pS0 ? Fraction of votes for combined Spiral categories following the debiasing procedure described in Section 3.1 101 I1 --- fS [0/1]? Spiral flag (1) 103 I1 --- fE [0/1]? Elliptical flag (1) 105 I1 --- fU [0/1]? Uncertain flag (1)
Note (1): Galaxies flagged as 'elliptical' or 'spiral' require 80% of the vote in that category after the debiasing procedure has been applied; all other galaxies are flagged 'uncertain'.
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 18 A18 --- objID SDSS objID 20- 21 I2 h RAh SDSS right ascension (J2000) 23- 24 I2 min RAm SDSS right ascension (J2000) 26- 30 F5.2 s RAs SDSS right ascension (J2000) 32 A1 --- DE- SDSS declination (J2000) 33- 34 I2 deg DEd SDSS declination (J2000) 36- 37 I2 arcmin DEm SDSS declination (J2000) 39- 42 F4.1 arcsec DEs SDSS declination (J2000) 44- 48 F5.3 --- fU Fraction of unclassified galaxies, clean sample (1) 50- 54 F5.3 --- fM Fraction of misclassified galaxies, clean sample (1) 56- 60 F5.3 --- <Dp>c Mean difference between raw and debiased likelihoods, clean sample (1) (3) 62- 66 F5.3 --- e_<Dp>c Standard deviation of Dp 68- 72 F5.3 --- fM.g Fraction of misclassified galaxies, greater sample (2) 74- 78 F5.3 --- <Dp>g Mean difference between raw and debiased likelihoods, Greater sample (2) 80- 84 F5.3 --- e_<Dp>g Standard deviation of Dp, Greater sample (2) (3)
Note (1): Clean sample has been defined by requiring 80% of the corrected vote to be in a particular category. Note (2): Greater sample has been defined by requiring 50% of the corrected vote to be in a particular category. Note (3): Dp is an indicator of the quality of an individual morphology
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 18 A18 --- objID SDSS objID 20- 21 I2 h RAh SDSS right ascension (J2000) 23- 24 I2 min RAm SDSS right ascension (J2000) 26- 30 F5.2 s RAs SDSS right ascension (J2000) 32 A1 --- DE- SDSS declination (J2000) 33- 34 I2 deg DEd SDSS declination (J2000) 36- 37 I2 arcmin DEm SDSS declination (J2000) 39- 42 F4.1 arcsec DEs SDSS declination (J2000) 44- 46 I3 --- N1 Mirrored 1 total number of votes for each object 48- 52 F5.3 --- pE1 Mirrored 1 fraction of votes for Elliptical 54- 58 F5.3 --- pcS1 Mirrored 1 fraction of votes for ClockWise spirals category 60- 64 F5.3 --- paS1 Mirrored 1 fraction of votes for AntiClockWise spirals category 66- 70 F5.3 --- pEdg1 Mirrored 1 fraction of votes for Edge-on spiral 72- 76 F5.3 --- pDK1 Mirrored 1 fraction of votes for Don't Know 78- 82 F5.3 --- pMg1 Mirrored 1 fraction of votes for Merger category 84- 88 F5.3 --- pS1 Mirrored 1 fraction of votes for combined Spiral (S=Edg+cS+aS) category 90- 92 I3 --- N2 Mirrored 2 total number of votes for each object 94- 98 F5.3 --- pE2 Mirrored 2 fraction of votes for Elliptical 100-104 F5.3 --- pcS2 Mirrored 2 fraction of votes for ClockWise spirals category 106-110 F5.3 --- paS2 Mirrored 2 fraction of votes for AntiClockWise spirals category 112-116 F5.3 --- pEdg2 Mirrored 2 fraction of votes for Edge-on spiral 118-122 F5.3 --- pDK2 Mirrored 2 fraction of votes for Don't Know 124-128 F5.3 --- pMg2 Mirrored 2 fraction of votes for Merger category 130-134 F5.3 --- pS2 Mirrored 2 fraction of votes for combined Spiral (S=Edg+cS+aS) category
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 18 A18 --- objID SDSS objID 20- 21 I2 h RAh SDSS right ascension (J2000) 23- 24 I2 min RAm SDSS right ascension (J2000) 26- 30 F5.2 s RAs SDSS right ascension (J2000) 32 A1 --- DE- SDSS declination (J2000) 33- 34 I2 deg DEd SDSS declination (J2000) 36- 37 I2 arcmin DEm SDSS declination (J2000) 39- 42 F4.1 arcsec DEs SDSS declination (J2000) 44- 46 I3 --- Nm Monochrome total number of votes for each object 48- 52 F5.3 --- pEm Monochrome fraction of votes for Elliptical 54- 58 F5.3 --- pcSm Monochrome fraction of votes for ClockWise spirals category 60- 64 F5.3 --- paSm Monochrome fraction of votes for AntiClockWise spirals category 66- 70 F5.3 --- pEdgm Monochrome fraction of votes for Edge-on spiral 72- 76 F5.3 --- pDKm Monochrome fraction of votes for Don't Know 78- 82 F5.3 --- pMGm Monochrome fraction of votes for Merger category 84- 88 F5.3 --- pSm Monochrome fraction of votes for combined Spiral (S=Edg+cS+aS) category
Byte-by-byte Description of file: table7.dat
Bytes Format Units Label Explanations
1- 18 A18 --- objID SDSS objID 20- 21 I2 h RAh SDSS right ascension (J2000) 23- 24 I2 min RAm SDSS right ascension (J2000) 26- 30 F5.2 s RAs SDSS right ascension (J2000) 32 A1 --- DE- SDSS declination (J2000) 33- 34 I2 deg DEd SDSS declination (J2000) 36- 37 I2 arcmin DEm SDSS declination (J2000) 39- 42 F4.1 arcsec DEs SDSS declination (J2000) 44- 46 I3 --- Nt Total number of votes for each object 48- 49 I2 --- Nstd STD total number of votes for each object 51- 53 I3 --- Nt1 Mirrored 1 total number of votes for each object 55- 57 I3 --- Nt2 Mirrored 2 total number of votes for each object 59- 61 I3 --- Ntm Monochrome total number of votes for each object 63- 67 F5.3 --- pEm Monochrome fraction of votes for Elliptical 69- 73 F5.3 --- pcSm Monochrome fraction of votes for ClockWise spirals category 75- 79 F5.3 --- paSm Monochrome fraction of votes for AntiClockWise spirals category 81- 85 F5.3 --- pEdgm Monochrome fraction of votes for Edge-on spiral 87- 91 F5.3 --- pDKm Monochrome fraction of votes for Don't Know 93- 97 F5.3 --- pMgm Monochrome fraction of votes for Merger category 99-103 F5.3 --- pSm Monochrome fraction of votes for combined Spiral (S=Edg+cS+aS) category
History: Data copied at http://data.galaxyzoo.org
(End) Patricia Vannier [CDS] 07-Feb-2011
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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