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Re: convolution of vsini [message #82935 is a reply to message #82932]

Wed, 23 January 2013 08:49

wlandsman
Messages: 743
Registered: June 2000

Senior Member

The IDL astronomy library has the function LSF_ROTATE

http://idlastro.gsfc.nasa.gov/ftp/pro/astro/lsf_rotate.pro

to return a convolution kernel for rotating a stellar spectrum under typical assumptions (e.g. constant limb darkening). You can use one of the many interpolation routines (e.g. interpol()) to do the interpolation.

On Wednesday, January 23, 2013 7:10:12 AM UTC-5, idlhelp wrote:
> Does anyone know the IDL routine with the help of which I can first do the interpolation onto a wavelength grid and then get the kernel for vsini and then finally interpolate back onto my original wavelength grid.
>
>
>
> thanks

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		Re: convolution of vsini By: abc on Wed, 23 January 2013 12:20
		Re: convolution of vsini By: wlandsman on Wed, 23 January 2013 08:49

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