apogeesb2
Examine CCFs in the APOGEE apstar files to search for double lined spectroscopic binaries
Required packages:
- Astropy
- Gausspy (https://github.com/gausspy/gausspy)
Installation
python3 setup.py install
Example
apogeesb2 /path/apogee/spectro/redux/r13/stars/apo25m/105-45
Identify SB2s in the APOGEE spectra via gaussian fitting of the CCF
positional arguments:
directory Directory containing apstar fits files
optional arguments:
--usepath USEPATH Instead of scanning directory, use txt file with full
paths to all apstar files (Default False)
--out OUT Name of the fits table to save identified SB2
properties (Default sb2s.fits)
--saveall SAVEALL Save deconvolution for all sources (Default False)
--outall OUTALL Name of the fits table to save identified SB2
properties (Default all_deconvolutions.fits)
--makeccf MAKECCF Make CCF from the data (default True), or read
existing pickle
--ccfs CCFS Name where to dump the pickle file containing ccfs
(Default ccfs.pickle)
--meta META Name where to dump the pickle file containing
corresponding metadata (Default ccfs_meta.pickle)
--deconvolve DECONVOLVE
Deconvolve CCFs from scratch (default True), or read
existing pickle
--deconvol DECONVOL Name where to dump the pickle file containing raw
deconvolution (Default ccfs_decomposed.pickle)
--deletetemp DELETETEMP
Delete temporary files (Default True)
--makeplots MAKEPLOTS
Generate CCF plots (Default True)
--plotdir PLOTDIR Folder to output the figures (Default plots)
--width WIDTH Width from the central peak to scan, in km/s (Default
400)
--alpha ALPHA Default alpha parameter (Default 1.5)
--offset OFFSET Default offset to the continuum (Default 0)
--epoch EPOCH [EPOCH ...]
Epochs to apply, starting with 0 (Default all)
--silent SILENT Print paths (Default False)