ASCL.net

Astrophysics Source Code Library

Making codes discoverable since 1999

Searching for codes credited to 'De, K.'

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Found 2 codes.

[ascl:2504.032] DMCalc: In-band dispersion measure of pulsars calculator
Krishnakumar, M. A.; Manoharan, P. K.; Joshi, B. C.; Girgaonkar, R.; Desai, S.; Bagchi, M.; Nobleson, K.; Dey, L.; Susobhanan, A.; Susarla, S. C.; Surnis, M. P.; Maan, Y.; Gopakumar, A.; Basu, A.; Batra, N. D.; Choudhary, A.; De, K.; Gupta, Y.; Naidu, A. K.; Pathak, D.; Singha, J.; Prabu, T.
DMCalc estimates the Dispersion Measure (DM) of wide-band pulsar data in psrfits format. It uses PSRCHIVE (ascl:1105.014) tools to get ToAs and then uses TEMPO2 (ascl:1210.015) for DM fitting. A median absolute deviation (MAD) based ToA rejection algorithm is implemented in the code to remove large outlier ToAs using Huber Regression. Although the code has been used for analyzing uGMRT wide-band data, DMCalc can in principle be used for any pulsar dataset.
[ascl:2401.020] escatter: Electron scattering in Python
Brennan, S. J.; Schulze, S.; Lunnan, R.; Sollerman, J.; Yan, L.; Fransson, C.; Irani, I.; Melinder, J.; Chen, T. W.; De, K.; Fremling, C.; Kim, Y. L.; Perley, D.; Pessi, P. J.; Drake, A. J.; Graham, M. J.; Laher, R. R.; Masci, F. J.; Purdum, J.; Rodriguez, H.
escatter.py performs Monte Carlo simulations of electron scattering events. The code was developed to better understand the emission lines from the interacting supernova SN 2021adxl, specifically the blue excess seen in the Hα 6563A emission line. escatter follows a photon that was formed in a thin interface between the supernova ejecta and surrounding material as it travels radially outwards through the dense material, scattering electrons outwards until it reaches an optically thin region, and plots a histogram of the emergent photons.