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A Simple Code for Rotational Broadening of Broad Wavelength Range High-Dispersion Spectra

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arxiv 2305.09693 v1 pith:PIZXP7DL submitted 2023-05-16 astro-ph.IM astro-ph.EPastro-ph.SR

classification astro-ph.IMastro-ph.EPastro-ph.SR
keywords broadeningmethodspectrawavelengthcodehigh-dispersionlargeranges
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In high dispersion spectra of rotating bodies such as stars and planets, the rotation contributes significantly to, and sometimes dominates, the line broadening. We present a simple method for rotationally broadening large wavelength ranges of high-dispersion spectra. The broadening is rapid and scales linearly with the length of the spectrum array. For large wavelength ranges, the method is much faster than the popular convolution-based broadening. We provide the code implementation of this method in a publicly accessible repository.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Spectroscopic follow-up of compact object binary candidates from Gaia DR3: White dwarfs, neutron stars, black holes, and the parallax zeropoint

    astro-ph.SR 2026-08 accept novelty 7.0 of 10

    Spectroscopic follow-up confirms about 60% of Gaia DR3 astrometric compact-object candidates, identifies 27 neutron-star candidates, and measures the DR3 parallax zeropoint for orbital solutions as -0.0362 +/- 0.0053 mas.

  2. A Physically Driven Parameterisation of Multidimensional Atmospheres: Application to the JWST Phase Curve of WASP-121b

    astro-ph.EP 2026-07 conditional novelty 6.0 of 10

    A 3D temperature parameterization derived from energy-balance timescales, fit to JWST phase-curve spectra of WASP-121b, recovers a day–night asymmetric atmosphere with a nightside methane enhancement and hints of magn...

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