A universal correlation between warm and hot gas in the stripped tails of cluster galaxies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F22%3A00552408" target="_blank" >RIV/67985815:_____/22:00552408 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1038/s41550-021-01516-8" target="_blank" >https://doi.org/10.1038/s41550-021-01516-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41550-021-01516-8" target="_blank" >10.1038/s41550-021-01516-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A universal correlation between warm and hot gas in the stripped tails of cluster galaxies

Popis výsledku v původním jazyce

The impact of ram pressure stripping on galaxy evolution is well known (for example, ref. (1)). Recent multi-wavelength data have revealed many examples of galaxies undergoing stripping, often accompanied with multi-phase tails(2-13). As energy transfer in the multi-phase medium is an outstanding question in astrophysics, galaxies in stripping are great objects to study. Despite the recent burst of observational evidence, the relationship between gas in different phases in the tails is poorly known. Here we report a strong linear correlation between the X-ray surface brightness and the H alpha surface brightness of the diffuse gas in the stripped tails at similar to 10-40 kpc scales, with a slope of similar to 3.5. This discovery provides evidence for the mixing of the stripped interstellar medium with the hot intra-cluster medium as the origin of the multi-phase tails. The established relation in stripped tails, also in comparison with the probably related correlations in similar environments such as galactic winds and X-ray cool cores, provides an important test for models of energy transfer in the multi-phase gas. It also indicates the importance of the H alpha data to study clumping and turbulence in the intra-cluster medium.

Název v anglickém jazyce

A universal correlation between warm and hot gas in the stripped tails of cluster galaxies

Popis výsledku anglicky

The impact of ram pressure stripping on galaxy evolution is well known (for example, ref. (1)). Recent multi-wavelength data have revealed many examples of galaxies undergoing stripping, often accompanied with multi-phase tails(2-13). As energy transfer in the multi-phase medium is an outstanding question in astrophysics, galaxies in stripping are great objects to study. Despite the recent burst of observational evidence, the relationship between gas in different phases in the tails is poorly known. Here we report a strong linear correlation between the X-ray surface brightness and the H alpha surface brightness of the diffuse gas in the stripped tails at similar to 10-40 kpc scales, with a slope of similar to 3.5. This discovery provides evidence for the mixing of the stripped interstellar medium with the hot intra-cluster medium as the origin of the multi-phase tails. The established relation in stripped tails, also in comparison with the probably related correlations in similar environments such as galactic winds and X-ray cool cores, provides an important test for models of energy transfer in the multi-phase gas. It also indicates the importance of the H alpha data to study clumping and turbulence in the intra-cluster medium.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/LM2018106" target="_blank" >LM2018106: Atacama Large Millimeter/ Submillimeter Array – účast České republiky</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nature Astronomy

ISSN

2397-3366

e-ISSN

2397-3366

Svazek periodika

6

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

270-274

Kód UT WoS článku

000729701200001

EID výsledku v databázi Scopus

2-s2.0-85121025698