Interaction between the intergalactic medium and central radio source in the NGC 4261 group of galaxies

E. O'Sullivan; D. M. Worrall; M. Birkinshaw; G. Trinchieri; A. Wolter; A. Zezas; S. Giacintucci

doi:10.1111/j.1365-2966.2011.19239.x

Interaction between the intergalactic medium and central radio source in the NGC 4261 group of galaxies

E. O'Sullivan^*, D. M. Worrall, M. Birkinshaw, G. Trinchieri, A. Wolter, A. Zezas, S. Giacintucci

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

40 Citations (Scopus)

Abstract

Using observations from the Chandra and XMM-Newton X-ray observatories, we examine the interaction between the intragroup medium and central radio source in the nearby NGC 4261 galaxy group. We confirm the presence of cavities associated with the radio lobes and estimate their enthalpy to be similar to 2.4 x 10(58) erg. The mechanical power output of the jets is >= 10(43) erg s(-1), at least a factor of 60 greater than the cooling luminosity in the region the lobes inhabit. We identify rims of compressed gas enclosing the lobes, but find no statistically significant temperature difference between them and their surroundings, suggesting that the lobe expansion velocity is approximately sonic (M

Original language	English
Pages (from-to)	2916-2931
Number of pages	16
Journal	Monthly Notices of the Royal Astronomical Society
Volume	416
Issue number	4
DOIs	https://doi.org/10.1111/j.1365-2966.2011.19239.x
Publication status	Published - Oct 2011

Keywords

galaxies: active
galaxies: individual: 3C 270
galaxies: individual: NGC4261
intergalactic medium
X-rays: galaxies
DEEP CHANDRA OBSERVATION
X-RAY LUMINOSITY
ACTIVE GALACTIC NUCLEUS
HUBBLE-SPACE-TELESCOPE
XMM-NEWTON OBSERVATION
ELLIPTIC GALAXIES
STAR-FORMATION
HOT GAS
BLACK-HOLE
JET POWER

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title = "Interaction between the intergalactic medium and central radio source in the NGC 4261 group of galaxies",

abstract = "Using observations from the Chandra and XMM-Newton X-ray observatories, we examine the interaction between the intragroup medium and central radio source in the nearby NGC 4261 galaxy group. We confirm the presence of cavities associated with the radio lobes and estimate their enthalpy to be similar to 2.4 x 10(58) erg. The mechanical power output of the jets is >= 10(43) erg s(-1), at least a factor of 60 greater than the cooling luminosity in the region the lobes inhabit. We identify rims of compressed gas enclosing the lobes, but find no statistically significant temperature difference between them and their surroundings, suggesting that the lobe expansion velocity is approximately sonic (M ",

keywords = "galaxies: active, galaxies: individual: 3C 270, galaxies: individual: NGC4261, intergalactic medium, X-rays: galaxies, DEEP CHANDRA OBSERVATION, X-RAY LUMINOSITY, ACTIVE GALACTIC NUCLEUS, HUBBLE-SPACE-TELESCOPE, XMM-NEWTON OBSERVATION, ELLIPTIC GALAXIES, STAR-FORMATION, HOT GAS, BLACK-HOLE, JET POWER",

author = "E. O'Sullivan and Worrall, {D. M.} and M. Birkinshaw and G. Trinchieri and A. Wolter and A. Zezas and S. Giacintucci",

year = "2011",

month = oct,

doi = "10.1111/j.1365-2966.2011.19239.x",

language = "English",

volume = "416",

pages = "2916--2931",

journal = "Monthly Notices of the Royal Astronomical Society",

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publisher = "Oxford University Press",

number = "4",

}

TY - JOUR

T1 - Interaction between the intergalactic medium and central radio source in the NGC 4261 group of galaxies

AU - O'Sullivan, E.

AU - Worrall, D. M.

AU - Birkinshaw, M.

AU - Trinchieri, G.

AU - Wolter, A.

AU - Zezas, A.

AU - Giacintucci, S.

PY - 2011/10

Y1 - 2011/10

N2 - Using observations from the Chandra and XMM-Newton X-ray observatories, we examine the interaction between the intragroup medium and central radio source in the nearby NGC 4261 galaxy group. We confirm the presence of cavities associated with the radio lobes and estimate their enthalpy to be similar to 2.4 x 10(58) erg. The mechanical power output of the jets is >= 10(43) erg s(-1), at least a factor of 60 greater than the cooling luminosity in the region the lobes inhabit. We identify rims of compressed gas enclosing the lobes, but find no statistically significant temperature difference between them and their surroundings, suggesting that the lobe expansion velocity is approximately sonic (M

AB - Using observations from the Chandra and XMM-Newton X-ray observatories, we examine the interaction between the intragroup medium and central radio source in the nearby NGC 4261 galaxy group. We confirm the presence of cavities associated with the radio lobes and estimate their enthalpy to be similar to 2.4 x 10(58) erg. The mechanical power output of the jets is >= 10(43) erg s(-1), at least a factor of 60 greater than the cooling luminosity in the region the lobes inhabit. We identify rims of compressed gas enclosing the lobes, but find no statistically significant temperature difference between them and their surroundings, suggesting that the lobe expansion velocity is approximately sonic (M

KW - galaxies: active

KW - galaxies: individual: 3C 270

KW - galaxies: individual: NGC4261

KW - intergalactic medium

KW - X-rays: galaxies

KW - DEEP CHANDRA OBSERVATION

KW - X-RAY LUMINOSITY

KW - ACTIVE GALACTIC NUCLEUS

KW - HUBBLE-SPACE-TELESCOPE

KW - XMM-NEWTON OBSERVATION

KW - ELLIPTIC GALAXIES

KW - STAR-FORMATION

KW - HOT GAS

KW - BLACK-HOLE

KW - JET POWER

U2 - 10.1111/j.1365-2966.2011.19239.x

DO - 10.1111/j.1365-2966.2011.19239.x

M3 - Article (Academic Journal)

SN - 0035-8711

VL - 416

SP - 2916

EP - 2931

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

Interaction between the intergalactic medium and central radio source in the NGC 4261 group of galaxies

Abstract

Keywords

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