Matches in SemOpenAlex for { <https://semopenalex.org/work/W2089457523> ?p ?o ?g. }
- W2089457523 endingPage "153" @default.
- W2089457523 startingPage "153" @default.
- W2089457523 abstract "We present a multi-wavelength study of the emission-line nebulae located southeast of the nucleus of M87, the central dominant galaxy of the Virgo Cluster. We report the detection of far-infrared (FIR) [CII] line emission from the nebulae using observations made with Herschel PACS. The infrared line emission is extended and cospatial with optical H{alpha}+[NII], far-ultraviolet CIV lines, and soft X-ray emission. The filamentary nebulae evidently contain multi-phase material spanning a temperature range of at least 5 orders of magnitude, from ~100 K to ~10^7 K. This material has most likely been uplifted by the AGN from the center of M87. The thermal pressure of the 10^4 K phase appears to be significantly lower than that of the surrounding hot intra-cluster medium (ICM) indicating the presence of additional turbulent and magnetic pressure in the filaments. If the turbulence in the filaments is subsonic then the magnetic field strength required to balance the pressure of the surrounding ICM is B~30-70 {mu}G. The spectral properties of the soft X-ray emission from the filaments indicate that it is due to thermal plasma with kT~0.5-1 keV, which is cooling by mixing with the cold gas and/or radiatively. Charge exchange can be ruled out as a significant source of soft X-rays. Both cooling and mixing scenarios predict gas with a range of temperatures. This is at first glance inconsistent with the apparent lack of X-ray emitting gas with kT<0.5 keV. However, we show that the missing very soft X-ray emission could be absorbed by the cold gas in the filaments with an integrated hydrogen column density of ~1.6x10^21 cm^-2, providing a natural explanation for the apparent temperature floor to the X-ray emission at kT~0.5 keV. The FIR through ultra-violet line emission is most likely primarily powered by the ICM particles penetrating the cold gas following a shearing induced mixing process." @default.
- W2089457523 created "2016-06-24" @default.
- W2089457523 creator A5002794812 @default.
- W2089457523 creator A5012808007 @default.
- W2089457523 creator A5023354361 @default.
- W2089457523 creator A5024983697 @default.
- W2089457523 creator A5031026123 @default.
- W2089457523 creator A5039005991 @default.
- W2089457523 creator A5040544286 @default.
- W2089457523 creator A5055048185 @default.
- W2089457523 creator A5061236229 @default.
- W2089457523 creator A5064328569 @default.
- W2089457523 creator A5069637462 @default.
- W2089457523 creator A5071726273 @default.
- W2089457523 creator A5078897197 @default.
- W2089457523 date "2013-04-08" @default.
- W2089457523 modified "2023-10-02" @default.
- W2089457523 title "THE NATURE OF FILAMENTARY COLD GAS IN THE CORE OF THE VIRGO CLUSTER" @default.
- W2089457523 cites W1623182580 @default.
- W2089457523 cites W1742388183 @default.
- W2089457523 cites W1753517100 @default.
- W2089457523 cites W1805419916 @default.
- W2089457523 cites W1905835478 @default.
- W2089457523 cites W1914340432 @default.
- W2089457523 cites W1918622708 @default.
- W2089457523 cites W1918787266 @default.
- W2089457523 cites W1936126107 @default.
- W2089457523 cites W1938583937 @default.
- W2089457523 cites W1939193133 @default.
- W2089457523 cites W1961194795 @default.
- W2089457523 cites W1965332506 @default.
- W2089457523 cites W1967876247 @default.
- W2089457523 cites W1968261387 @default.
- W2089457523 cites W1979872793 @default.
- W2089457523 cites W1980433631 @default.
- W2089457523 cites W1984987787 @default.
- W2089457523 cites W1985438406 @default.
- W2089457523 cites W1995184671 @default.
- W2089457523 cites W1999515344 @default.
- W2089457523 cites W2009009580 @default.
- W2089457523 cites W2013285588 @default.
- W2089457523 cites W2013352950 @default.
- W2089457523 cites W2017612006 @default.
- W2089457523 cites W2019579421 @default.
- W2089457523 cites W2020310787 @default.
- W2089457523 cites W2033765541 @default.
- W2089457523 cites W2037964227 @default.
- W2089457523 cites W2044896490 @default.
- W2089457523 cites W2048790014 @default.
- W2089457523 cites W2052504197 @default.
- W2089457523 cites W2057872038 @default.
- W2089457523 cites W2058484847 @default.
- W2089457523 cites W2060187465 @default.
- W2089457523 cites W2060560951 @default.
- W2089457523 cites W2067496121 @default.
- W2089457523 cites W2069202754 @default.
- W2089457523 cites W2070693507 @default.
- W2089457523 cites W2076279209 @default.
- W2089457523 cites W2081657985 @default.
- W2089457523 cites W2085713960 @default.
- W2089457523 cites W2087755625 @default.
- W2089457523 cites W2089983561 @default.
- W2089457523 cites W2093906672 @default.
- W2089457523 cites W2095599717 @default.
- W2089457523 cites W2097823659 @default.
- W2089457523 cites W2108695755 @default.
- W2089457523 cites W2110049547 @default.
- W2089457523 cites W2110435284 @default.
- W2089457523 cites W2111405961 @default.
- W2089457523 cites W2112821569 @default.
- W2089457523 cites W2114098170 @default.
- W2089457523 cites W2124999166 @default.
- W2089457523 cites W2125996782 @default.
- W2089457523 cites W2138270306 @default.
- W2089457523 cites W2145874579 @default.
- W2089457523 cites W2146655501 @default.
- W2089457523 cites W2154440328 @default.
- W2089457523 cites W2163192222 @default.
- W2089457523 cites W2165775885 @default.
- W2089457523 cites W2171868067 @default.
- W2089457523 cites W2172053988 @default.
- W2089457523 cites W3098033555 @default.
- W2089457523 cites W3098644309 @default.
- W2089457523 cites W3099094915 @default.
- W2089457523 cites W3099294228 @default.
- W2089457523 cites W3100106758 @default.
- W2089457523 cites W3100640281 @default.
- W2089457523 cites W3101377210 @default.
- W2089457523 cites W3103015241 @default.
- W2089457523 cites W3103435196 @default.
- W2089457523 cites W3103550344 @default.
- W2089457523 cites W3103604348 @default.
- W2089457523 cites W3104624512 @default.
- W2089457523 cites W3104652836 @default.
- W2089457523 cites W3104664494 @default.
- W2089457523 cites W3104802768 @default.
- W2089457523 cites W3105311925 @default.
- W2089457523 cites W3106060417 @default.