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streamgap-pepper: Effects of peppering streams with many small impacts

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Ada Coda
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streamgap-pepper: Effects of peppering streams with many small impacts

Postby Ada Coda » Tue Feb 28, 2017 3:22 am

streamgap-pepper: Effects of peppering streams with many small impacts

Abstract: streamgap-pepper computes the effect of subhalo fly-bys on cold tidal streams based on the action-angle representation of streams. A line-of-parallel-angle approach is used to calculate the perturbed distribution function of a given stream segment by undoing the effect of all impacts. This approach allows one to compute the perturbed stream density and track in any coordinate system in minutes for realizations of the subhalo distribution down to 10^5 Msun, accounting for the stream's internal dispersion and overlapping impacts. This code uses galpy (ascl:1411.008) and the streampepperdf.py galpy extension, which implements the fast calculation of the perturbed stream structure.

Credit: Bovy, Jo; Erkal, Denis; Sanders, Jason

Site: https://github.com/jobovy/streamgap-pepper
http://adsabs.harvard.edu/abs/2017MNRAS.466..628B

Bibcode: 2017ascl.soft02010B

Preferred citation method: http://adsabs.harvard.edu/abs/2017MNRAS.466..628B

ID: ascl:1702.010

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