The Scale of Homogeneity in the Las Campanas Redshift Survey | Zendy

Luca Amendola | Zendy; Emilia Palladino | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

The Scale of Homogeneity in the Las Campanas Redshift Survey

Author(s) -

Luca Amendola,

Emilia Palladino

Publication year - 1999

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/311936

Subject(s) - homogeneity (statistics) , homogeneous , fractal , normalization (sociology) , redshift , geography , physics , statistical physics , geology , astrophysics , statistics , mathematics , galaxy , mathematical analysis , sociology , anthropology

We analyse the Las Campanas Redshift Survey using the integrated conditionaldensity (or density of neighbors) in volume-limited subsamples up tounprecedented scales (200 Mpc/$h$) in order to determine without ambiguity thebehavior of the density field. We find that the survey is well described by afractal up to 20-30 Mpc/$h$, but flattens toward homogeneity at larger scales.Although the data are still insufficient to establish with high significancethe expected homogeneous behavior, and therefore to rule out a fractal trend tolarger scales, a fit with a CDM-like spectrum with high normalization wellrepresents the data.Comment: 8 pages, 3 figures, accepted on Ap.J. Letter

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research