The BIG X-ray tail

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F21%3A00552296" target="_blank" >RIV/67985815:_____/21:00552296 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1093/mnrasl/slab108" target="_blank" >https://doi.org/10.1093/mnrasl/slab108</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnrasl/slab108" target="_blank" >10.1093/mnrasl/slab108</a>

Result language
angličtina
Original language name
The BIG X-ray tail
Original language description
Galaxy clusters grow primarily through the continuous accretion of group-scale haloes. Group galaxies experience preprocessing during their journey into clusters. A star-bursting compact group, the Blue Infalling Group (BIG), is plunging into the nearby cluster A1367. Previous optical observations reveal rich tidal features in the BIG members, and a long H alpha trail behind. Here, we report the discovery of a projected similar to 250 kpc X-ray tail behind the BIG using Chandra and XMM-Newton observations. The total hot gas mass in the tail is similar to 7 x 10(10) M-circle dot with an X-ray bolometric luminosity of similar to 3.8 x 10(41) erg s(-1). The temperature along the tail is similar to 1 keV, but the apparent metallicity is very low, an indication of the multi-T nature of the gas. The X-ray and H alpha surface brightnesses in the front part of the BIG tail follow the tight correlation established from a sample of stripped tails in nearby clusters, which suggests the multiphase gas originates from the mixing of the stripped interstellar medium (ISM) with the hot intracluster medium (ICM). Because thermal conduction and hydrodynamic instabilities are significantly suppressed, the stripped ISM can be long lived and produce ICM clumps. The BIG provides us a rare laboratory to study galaxy transformation and preprocessing.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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