ExampleInit: Initial 2D Sersic Model Image Parameters

In ProFit: Fit Projected 2D Profiles to Galaxy Images

Description

Rough initial 2 component 2D Sersic model parameters for the provided model images.

Usage

data("ExampleInit")

Format

A data frame with 39 observations on the following 10 variables.

CATAID

GAMA CATAID reference

sersic.xcen1

x centres of the 2D Sersic profiles

sersic.ycen1

y centres of the 2D Sersic profiles

sersic.mag1

Total magnitudes of the 2D Sersic bulge profiles

sersic.mag2

Total magnitudes of the 2D Sersic disk profiles

sersic.re1

Effective radii of the 2D Sersic bulge profiles

sersic.re2

Effective radii of the 2D Sersic disk profiles

sersic.nser1

Sersic indices of the 2D Sersic bulge profiles

sersic.ang2

Orientation of the major axis of the disk profile in degrees

sersic.axrat2

Axial ratios of Sersic disk profiles defined as minor-axis/major-axis

Details

These rough initial guesses of the galaxy models were derived from single Sersic fits taken from Lange et al 2015.

References

Lange R., et al, 2015, MNRAS, 447, 2603

Examples

data(ExampleInit)
ExampleInit[1:5,]

Example output

Loading required package: FITSio
Loading required package: LaplacesDemon
Loading required package: magicaxis
Loading required package: MASS
Loading required package: plotrix
Loading required package: sm
Package 'sm', version 2.2-5.4: type help(sm) for summary information

Attaching package: 'sm'

The following object is masked from 'package:MASS':

    muscle

Loading required package: mapproj
Loading required package: maps
Loading required package: celestial
Loading required package: RANN
Loading required package: NISTunits
Loading required package: pracma

Attaching package: 'pracma'

The following object is masked from 'package:sm':

    nile

The following objects are masked from 'package:LaplacesDemon':

    Mode, logit, loglog

Loading required package: R2Cuba
Loading required package: RColorBrewer
  CATAID sersic.xcen1 sersic.ycen1 sersic.mag1 sersic.mag2 sersic.re1
1 265769     122.8069      87.3328    17.08907    17.08907     8.7142
2 265911      84.8832      94.5951    16.83217    16.83217     7.0574
3 265940      80.3975      52.2173    18.04857    18.04857     5.9629
4 265943      53.7013      83.6956    17.70547    17.70547     6.4206
5 265981     148.8727     106.4069    16.85617    16.85617    11.0010
  sersic.re2 sersic.nser1 sersic.ang2 sersic.axrat2
1    17.4284       3.4292    105.8498        0.1541
2    14.1148       4.3776    140.8191        0.4891
3    11.9258       4.6010    112.2746        0.4875
4    12.8412       4.5086    168.2385        0.4179
5    22.0020       2.9434     59.6690        0.2621

ProFit documentation built on Nov. 11, 2019, 5:07 p.m.