A Cosmology Calculator for the World Wide Web

By E. L. Wright. 2006

921 citations recorded by the source corpus.

A cosmology calculator that computes times and distances as a function of redshift for user‐defined cosmological parameters has been made available online. This paper gives the formulae used by the cosmology calculator and discusses some of its implementation. A version of the calculator that allows one to specify the equation‐of‐state parameter w and w′, and one for converting the light‐travel times usually given in the popular press into redshifts, is also located at the same site.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/454da0d6b6b32d04f433ee856521a0d935d931e3

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

In Nuclear and High Energy Physics

Citations in the corpus

The applicability of far-infrared fine-structure lines as star formation rate tracers over wide ranges of metallicities and galaxy types (2014, methodology): “To convert redshifts to luminosity distances, we use the NED cosmology calculator (Wright 2006), assuming a spatially flat cosmology with H0 = 67.3 km s−1 Mpc−1, Ωλ = 0.685 and Ωm = 0.315 (Planck Collaboration XVI 2014).”
Doppler factors, Lorentz factors and viewing angles for quasars, BL Lacertae objects and radio galaxies (2008, methodology): “In the calculation of the luminosity distances we have made use of the python version of the cosmology calculator created by Edward L. Wright2 (Wright 2006).”
THE SDSS-III BARYON OSCILLATION SPECTROSCOPIC SURVEY: THE QUASAR LUMINOSITY FUNCTION FROM DATA RELEASE NINE (2012, methodology): “Absolute magnitudes (M) are determined using luminosity distances for this cosmology (Peebles 1980, 1993; Hogg et al. 2002; Wright 2006).”
The Hubble Constant from Infrared Surface Brightness Fluctuation Distances (2021, methodology): “In fitting for H0, we use the first-order cosmological corrections to the redshift (e.g., Wright 2006) assuming Ωm= 0.3, Λ= 0.7; the results change imperceptibly if we instead use the best-fit Planck values (0.315, 0.685) for a flat universe.”
FRBCAT: The Fast Radio Burst Catalogue (2016, methodology): “Cosmological parameters such as Dcomov, Dluminosity, and Energy are derived on-the-fly using the Cosmology Calculator module from Wright (2006) with the input parameters displayed on the individual burst sub-pages.”
Detection of high Lyman continuum leakage from four low-redshift compact star-forming galaxies (2016, methodology): “The observed fluxes were transformed to luminosities adopting luminosity distances derived with the cosmological calculator (NED, Wright 2006), based on the cosmological parameters H0=67.1 km s −1Mpc−1, ΩΛ=0.682, Ωm=0.318 (Ade et al. 2014).”
Fast radio bursts: search sensitivities and completeness (2014, positive): “The comoving distance is determined using the calculator of Wright (2006).”
CLUSTERING OF LOW-REDSHIFT (z ⩽ 2.2) QUASARS FROM THE SLOAN DIGITAL SKY SURVEY (2008, methodology): “The JavaScript Cosmology Calculator was used whilst preparing this paper (Wright 2006).”
Early-time light curves of Type Ib/c supernovae from the SDSS-II Supernova Survey (2014, methodology): “Luminosity distances were computed from the redshifts assuming WMAP (5-years) cosmological parameters (H0 = 70.5 km s−1 Mpc−1, Ωm = 0.27, ΩΛ = 0.73, Komatsu et al. 2009), using the cosmology calculator by Wright (2006) via NED6.”
The 6dF Galaxy Survey: baryon acoustic oscillations and the local Hubble constant (2011, background): “Our fiducial model gives DfidV (zeff) = 440.5 Mpc, where we have followed the distance definitions of Wright (2006) throughout.”
NEARBY SUPERNOVA FACTORY OBSERVATIONS OF SN 2007if: FIRST TOTAL MASS MEASUREMENT OF A SUPER-CHANDRASEKHAR-MASS PROGENITOR (2010, background): “…of zCMB = 0.0731± .0013 (including a 300 km s−1 peculiar velocity) gives a Hubble-flow distance modulus of µ = 37.57± 0.03 for the concordance cosmology (h = 0.71, ΩM = 0.27,ΩΛ = 0.73; see Wright 2006) implies absolute magnitudesMB = −20.23, MV = −20.39 assuming zero reddening from the host galaxy.”
The SUrvey for Pulsars and Extragalactic Radio Bursts – II. New FRB discoveries and their follow-up. (2017, methodology): “For the cosmological parameters, we use CosmoCalc (Wright 2006), adopting H0 = 69.9 km s−1 Mpc−1, M = 0.286 and = 0.714.”