Streaming motions of galaxy clusters within 12 000 km s(-1) - I. New spectroscopic data
We present new spectroscopic data for 532 early-type galaxies, predominantly Abell cluster members with cz < 12 000 km s-1. We tabulate 919 individual measurements, from six observing runs, for recession velocity, cz, central velocity dispersion, σ, and magnesium line-strength indices, Mg2 an...
| मुख्य लेखकों: | , , , , |
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| स्वरूप: | Journal article |
| भाषा: | English |
| प्रकाशित: |
2000
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| _version_ | 1826280315538112512 |
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| author | Smith, R Lucey, JR Hudson, M Schlegel, D Davies, R |
| author_facet | Smith, R Lucey, JR Hudson, M Schlegel, D Davies, R |
| author_sort | Smith, R |
| collection | OXFORD |
| description | We present new spectroscopic data for 532 early-type galaxies, predominantly Abell cluster members with cz < 12 000 km s-1. We tabulate 919 individual measurements, from six observing runs, for recession velocity, cz, central velocity dispersion, σ, and magnesium line-strength indices, Mg2 and Mgb. The median estimated error, per measurement, in σ is 5 per cent. The Mg2 line-strength data have median errors of 0.009 mag. The observed scatter between repeat measurements is largely accounted for by photon-counting errors. These data will be employed in forthcoming papers, where they will form part of a merged and standardized catalogue of Fundamental Plane data for use in cluster distance estimates and peculiar velocity analyses. |
| first_indexed | 2024-03-07T00:11:52Z |
| format | Journal article |
| id | oxford-uuid:79806b15-25d4-48bb-b545-4211e67e4972 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:11:52Z |
| publishDate | 2000 |
| record_format | dspace |
| spelling | oxford-uuid:79806b15-25d4-48bb-b545-4211e67e49722022-03-26T20:37:51ZStreaming motions of galaxy clusters within 12 000 km s(-1) - I. New spectroscopic dataJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:79806b15-25d4-48bb-b545-4211e67e4972EnglishSymplectic Elements at Oxford2000Smith, RLucey, JRHudson, MSchlegel, DDavies, RWe present new spectroscopic data for 532 early-type galaxies, predominantly Abell cluster members with cz < 12 000 km s-1. We tabulate 919 individual measurements, from six observing runs, for recession velocity, cz, central velocity dispersion, σ, and magnesium line-strength indices, Mg2 and Mgb. The median estimated error, per measurement, in σ is 5 per cent. The Mg2 line-strength data have median errors of 0.009 mag. The observed scatter between repeat measurements is largely accounted for by photon-counting errors. These data will be employed in forthcoming papers, where they will form part of a merged and standardized catalogue of Fundamental Plane data for use in cluster distance estimates and peculiar velocity analyses. |
| spellingShingle | Smith, R Lucey, JR Hudson, M Schlegel, D Davies, R Streaming motions of galaxy clusters within 12 000 km s(-1) - I. New spectroscopic data |
| title | Streaming motions of galaxy clusters within 12 000 km s(-1) - I. New spectroscopic data |
| title_full | Streaming motions of galaxy clusters within 12 000 km s(-1) - I. New spectroscopic data |
| title_fullStr | Streaming motions of galaxy clusters within 12 000 km s(-1) - I. New spectroscopic data |
| title_full_unstemmed | Streaming motions of galaxy clusters within 12 000 km s(-1) - I. New spectroscopic data |
| title_short | Streaming motions of galaxy clusters within 12 000 km s(-1) - I. New spectroscopic data |
| title_sort | streaming motions of galaxy clusters within 12 000 km s 1 i new spectroscopic data |
| work_keys_str_mv | AT smithr streamingmotionsofgalaxyclusterswithin12000kms1inewspectroscopicdata AT luceyjr streamingmotionsofgalaxyclusterswithin12000kms1inewspectroscopicdata AT hudsonm streamingmotionsofgalaxyclusterswithin12000kms1inewspectroscopicdata AT schlegeld streamingmotionsofgalaxyclusterswithin12000kms1inewspectroscopicdata AT daviesr streamingmotionsofgalaxyclusterswithin12000kms1inewspectroscopicdata |