The DOI matches its Crossref record; 100 of the 100 references it cites were found in a registry or an index.
COLOSSUS: A Python Toolkit for Cosmology, Large-scale Structure, and Dark Matter Halos
Open accessAbstract
This paper introduces C olossus, a public, open-source python package for calculations related to cosmology, the large-scale structure (LSS) of matter in the universe, and the properties of dark matter halos. The code is designed to be fast and easy to use, with a coherent, well-documented user interface. The cosmology module implements Friedman–Lemaitre–Robertson–Walker cosmologies including curvature, relativistic species, and different dark energy equations of state, and provides fast computations of the linear matter power spectrum, variance, and correlation function. The LSS module is concerned with the properties of peaks in Gaussian random fields and halos in a statistical sense, including their peak height, peak curvature, halo bias, and mass function. The halo module deals with spherical overdensity radii and masses, density profiles, concentration, and the splashback radius. To facilitate the rapid exploration of these quantities, C olossus implements more than 40 different fitting functions from the literature. I discuss the core routines in detail, with particular emphasis on their accuracy. C olossus is available at bitbucket.org/bdiemer/colossus.
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“…This profile approaches power laws of slope −1 and −4 at small and large radii, respectively, turning over around the scale radius rs. • The Navarro-Frenk-White (NFW) profile (Navarro et al. 1995, 1996, 1997) changes the outer slope of the Hernquist profile to −3, ρNFW = ρs( r rs ) ( 1 + rrs )2 .”
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Cited by
The Cosmic Baryon and Metal Cycles
Péroux, C., & Howk, J. C. (2020) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-021820-120014 · Cited by 322
Gilman, D., Birrer, S., Nierenberg, A., Treu, T., Du, X., & Benson, A. (2020) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stz3480 · Cited by 268
A stringent upper limit on dark matter self-interaction cross-section from cluster strong lensing
Andrade, K. E., Fuson, J., Gad-Nasr, S., Kong, D., Minor, Q., Roberts, M. G., & Kaplinghat, M. (2021) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stab3241 · Cited by 94
Radio relics in massive galaxy cluster mergers in the TNG-Cluster simulation
Lee, W., Pillepich, A., ZuHone, J., Nelson, D., Jee, M. J., Nagai, D., & Finner, K. (2024) · Astronomy & Astrophysics · doi:10.1051/0004-6361/202348194 · Cited by 37
Gravothermal collapse and the diversity of galactic rotation curves
Roberts, M. G., Kaplinghat, M., Valli, M., & Yu, H.-B. (2025) · Physical Review D · doi:10.1103/physrevd.111.103041 · Cited by 21
Metadata
- Authors
- Diemer, B.
- Venue
- The Astrophysical Journal Supplement Series
- Publisher
- American Astronomical Society
- Published
- 2018-12-01
- Volume
- 239
- Issue
- 2
- Pages
- 35
- ISSN
- 0067-0049 (ISSN-L)
- 1538-4365
- OpenAlex
- W2771573390
- Cited by
- 494
- References
- 100
- FWCI
- 17.49
- Type
- journal article
- Language
- en
- Open access
- bronze
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