Catalog of One-side Head-Tail Galaxies in the FIRST Survey
| Autor: | Reinout J. van Weeren, Shumei Jia, Heng Yu, Yipeng Lyu, Chengkui Li, Tong Pan |
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| Rok vydání: | 2021 |
| Předmět: |
Radio galaxy
media_common.quotation_subject Astrophysics - astrophysics of galaxies Tailed radio galaxies FOS: Physical sciences Galaxy clusters Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences Projection distance Galaxy infall 0103 physical sciences Cluster (physics) 010303 astronomy & astrophysics Galaxy cluster Astrophysics::Galaxy Astrophysics media_common Physics 010308 nuclear & particles physics Astrophysics::Instrumentation and Methods for Astrophysics Astronomy and Astrophysics Galaxy Radial velocity Space and Planetary Science Sky Astrophysics of Galaxies (astro-ph.GA) 1682 584 599 |
| Zdroj: | The Astrophysical Journal Supplement Series, 254(2) |
| DOI: | 10.48550/arxiv.2104.08791 |
| Popis: | One-side head-tail (OHT) galaxies are radio galaxies with a peculiar shape. They usually appear in galaxy clusters, but they have never been cataloged systematically. We design an automatic procedure to search for them in the Faint Images of the Radio Sky at Twenty-Centimeters source catalog and compile a sample with 115 HT candidates. After cross-checking with the Sloan Digital Sky Survey photometric data and catalogs of galaxy clusters, we find that 69 of them are possible OHT galaxies. Most of them are close to the center of galaxy clusters. The lengths of their tails do not correlate with the projection distance to the center of the nearest galaxy clusters, but show weak anticorrelation with the cluster richness, and are inversely proportional to the radial velocity differences between clusters and host galaxies. Our catalog provides a unique sample to study this special type of radio galaxies. Comment: 17 pages, 84 figures(69 figures in appendix). Published by ApJS, comments welcome! |
| Databáze: | OpenAIRE |
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