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Activity Number:
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45
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Type:
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Invited
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Date/Time:
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Sunday, July 29, 2007 : 4:00 PM to 5:50 PM
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Sponsor:
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IMS
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| Abstract - #308127 |
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Title:
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Clustering of Absorption Systems
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Author(s):
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Ji Meng Loh*+
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Companies:
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Columbia University
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Address:
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Department of Statistics, New York, NY, ,
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Keywords:
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TBA
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Abstract:
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Absorption systems or absorbers are observed on lines of sight from the earth to distant quasars and are believed to be gas clouds near galaxies that are too far away to be easily detected in large surveys. The absorbers trace the distribution of nonluminous matter around these galaxies. Of scientific interest is the clustering of absorbers and how this compares with that found in galaxy surveys. We discuss how second and third order moment properties of absorbers can be estimated and how this can be used to investigate whether absorber data show evidence of being distributed along filaments and sheets like galaxies are.
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- The address information is for the authors that have a + after their name.
- Authors who are presenting talks have a * after their name.
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