Strong Clustering in the Low‐Redshift Lyα Forest | Zendy

Andrew Ulmer | Zendy

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Strong Clustering in the Low‐Redshift Lyα Forest

Author(s) -

Andrew Ulmer

Publication year - 1996

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 - 10.1086/178130

Subject(s) - redshift , hubble space telescope , correlation function (quantum field theory) , physics , cluster analysis , astrophysics , correlation , sample (material) , scale (ratio) , astronomy , statistics , galaxy , mathematics , geometry , optoelectronics , dielectric , quantum mechanics , thermodynamics

The two-point correlation function, $\xi$, of Lyman-alpha forest is found tobe large, $\xi = 1.8^{+1.6}_{-1.2}$, > 90% confidence level, on the scale of250-500 km/s for a sample of absorbers (0 < z < 1.3) assembled from HST KeyProject Observations. This correlation function is stronger than at highredshift (z > 1.7) where $\xi \approx 0.2$ for velocities > 250 km/s.Comment: 20 pages; Latex with 3 figures and 5 tables; Submitted to Ap

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