pyrafspec

pyrafspec is a wrapper to use pyraf(iraf) to extract spectrum observed by E9G10 of BFOSC or YFOSC

install iraf could look at https://iraf-community.github.io/install.html

install pyraf (https://pypi.org/project/pyraf/)

• pip install pyraf

install laspec (https://github.com/hypergravity/laspec)

• pip install laspec

install lightkurve

• pip install lightkurve==1.11.3

install pyrafspec

• $git clone https://github.com/lidihei/pyrafspec.git
• $cd pyrafspec
• $python setup.py install

pyfile/bfoscE9G10/E9G10.py is a example of extracting spectrum observed by Xinglong 216cm BFOSC E9+G10 (pyfile/bfoscE9G10)

pyfile/bfoscE9G10/HRS240.py is a example of extracting spectrum observed by Lijiang 240cm HRS

wavelength calibrate

• keywords of iraf splot
• • k --> down to next order
• • j --> up to previous order or (check rms)
• • h --> leave rms
• • d --> delete points
• • m --> mark points
• • f --> fit curve
• • w&e -> e --> select zone (xaixs invert: right_bottom --> left_top; yaxis_invert: left_top-->right_bottom)
• • w&a --> restore image
• • q --> quit identify or fitting process
• :xo 3 (change the x-axis order of fiting of 2D fit)

use iraf

use iraf

• $cl --> noao --> imred --> echel --> echelle --> ecidentify or dispcor
• edit parameter: epa eci (can edit parameters of ecidentify in GUI)
• logout (quit iraf)