Powerful AGN jets and unbalanced cooling in the hot atmosphere
of IC 4296

J 2019

Powerful AGN jets and unbalanced cooling in the hot atmosphere of IC 4296

GROSSOVÁ, Romana, Norbert WERNER, K. RAJPUROHIT, F. MERNIER, L. KIRAN et. al.

Základní údaje

Originální název

Powerful AGN jets and unbalanced cooling in the hot atmosphere of IC 4296

Autoři

GROSSOVÁ, Romana (703 Slovensko, garant, domácí), Norbert WERNER (703 Slovensko, domácí), K. RAJPUROHIT (356 Indie), F. MERNIER (56 Belgie), L. KIRAN (356 Indie), K. GABÁNYI (348 Maďarsko), R.E. A. CANNING (826 Velká Británie a Severní Irsko), P. NULSEN (36 Austrálie), F. MASSARO (380 Itálie), M. SUN (156 Čína), T. CONNOR (840 Spojené státy), A. KING (840 Spojené státy), S.W. ALLEN (826 Velká Británie a Severní Irsko), R.L.S. FRISBIE (840 Spojené státy), M. DONAHUE (840 Spojené státy) a A.C. FABIAN (826 Velká Británie a Severní Irsko)

Vydání

Monthly Notices of the Royal Astronomical Society, OXFORD, OXFORD UNIV PRESS, 2019, 0035-8711

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL URL

Impakt faktor

Impact factor: 5.357

Kód RIV

RIV/00216224:14310/19:00110293

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1093/mnras/stz1728

UT WoS

000482332500028

Klíčová slova anglicky

galaxies: active; galaxies: ISM; X-rays: galaxies

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 10. 11. 2022 12:13, Mgr. Marie Šípková, DiS.

Anotace

V originále

We present new Karl G. Jansky Very Large Array (VLA, 1.5 GHz) radio data for the giant elliptical galaxy IC 4296, supported by archival radio, X-ray (Chandra, XMMNewton) and optical (SOAR, HST) observations. The galaxy hosts powerful radio jets piercing through the inner hot X-ray emitting atmosphere, depositing most of the energy into the ambient intra-cluster medium (ICM). Whereas the radio surface brightness of the A configuration image is consistent with a Fanaroff-Riley Class I (FR I) system, the D configuration image shows two bright, relative to the central region, large (160 kpc diameter), well-defined lobes, previously reported by Killeen et al., at a projected distance r 230 kpc. The XMM-Newton image reveals an X-ray cavity associated with one of the radio lobes. The total enthalpy of the radio lobes is 7 × 1059 erg and the mechanical power output of the jets is 1044 erg s-1 . The jets are mildly curved and possibly re-brightened by the relative motion of the galaxy and the ICM. The lobes display sharp edges, suggesting the presence of bow shocks, which would indicate that they are expanding supersonically. The central entropy and cooling time of the X-ray gas are unusually low and the nucleus hosts a warm Ha+[N ii] nebula and a cold molecular CO disk. Because most of the energy of the jets is deposited far from the nucleus, the atmosphere of the galaxy continues to cool, apparently feeding the central supermassive black hole and powering the jet activity.

Citovat

GROSSOVÁ, Romana, Norbert WERNER, K. RAJPUROHIT, F. MERNIER, L. KIRAN, K. GABÁNYI, R.E. A. CANNING, P. NULSEN, F. MASSARO, M. SUN, T. CONNOR, A. KING, S.W. ALLEN, R.L.S. FRISBIE, M. DONAHUE a A.C. FABIAN. Powerful AGN jets and unbalanced cooling in the hot atmosphere of IC 4296. Monthly Notices of the Royal Astronomical Society. OXFORD: OXFORD UNIV PRESS, 2019, roč. 488, č. 2, s. 1917-1925. ISSN 0035-8711. Dostupné z: https://dx.doi.org/10.1093/mnras/stz1728.

@article{1548077,
   author = {Grossová, Romana and Werner, Norbert and Rajpurohit, K. and Mernier, F. and Kiran, L. and Gabányi, K. and Canning, R.E. A. and Nulsen, P. and Massaro, F. and Sun, M. and Connor, T. and King, A. and Allen, S.W. and Frisbie, R.L.S. and Donahue, M. and Fabian, A.C.},
   article_location = {OXFORD},
   article_number = {2},
   doi = {http://dx.doi.org/10.1093/mnras/stz1728},
   keywords = {galaxies: active; galaxies: ISM; X-rays: galaxies},
   language = {eng},
   issn = {0035-8711},
   journal = {Monthly Notices of the Royal Astronomical Society},
   title = {Powerful AGN jets and unbalanced cooling in the hot atmosphere of IC 4296},
   url = {https://arxiv.org/pdf/1903.03198.pdf},
   volume = {488},
   year = {2019}
}

TY  - JOUR
ID  - 1548077
AU  - Grossová, Romana - Werner, Norbert - Rajpurohit, K. - Mernier, F. - Kiran, L. - Gabányi, K. - Canning, R.E. A. - Nulsen, P. - Massaro, F. - Sun, M. - Connor, T. - King, A. - Allen, S.W. - Frisbie, R.L.S. - Donahue, M. - Fabian, A.C.
PY  - 2019
TI  - Powerful AGN jets and unbalanced cooling in the hot atmosphere of IC 4296
JF  - Monthly Notices of the Royal Astronomical Society
VL  - 488
IS  - 2
SP  - 1917-1925
EP  - 1917-1925
PB  - OXFORD UNIV PRESS
SN  - 00358711
KW  - galaxies: active
KW  - galaxies: ISM
KW  - X-rays: galaxies
UR  - https://arxiv.org/pdf/1903.03198.pdf
N2  - We present new Karl G. Jansky Very Large Array (VLA, 1.5 GHz) radio data for the giant elliptical galaxy IC 4296, supported by archival radio, X-ray (Chandra, XMMNewton) and optical (SOAR, HST) observations. The galaxy hosts powerful radio jets piercing through the inner hot X-ray emitting atmosphere, depositing most of the energy into the ambient intra-cluster medium (ICM). Whereas the radio surface brightness of the A configuration image is consistent with a Fanaroff-Riley Class I (FR I) system, the D configuration image shows two bright, relative to the central region, large (160 kpc diameter), well-defined lobes, previously reported by Killeen et al., at a projected distance r 230 kpc. The XMM-Newton image reveals an X-ray cavity associated with one of the radio lobes. The total enthalpy of the radio lobes is 7 × 1059 erg and the mechanical power output of the jets is 1044 erg s-1 . The jets are mildly curved and possibly re-brightened by the relative motion of the galaxy and the ICM. The lobes display sharp edges, suggesting the presence of bow shocks, which would indicate that they are expanding supersonically. The central entropy and cooling time of the X-ray gas are unusually low and the nucleus hosts a warm Ha+[N ii] nebula and a cold molecular CO disk. Because most of the energy of the jets is deposited far from the nucleus, the atmosphere of the galaxy continues to cool, apparently feeding the central supermassive black hole and powering the jet activity.
ER  -

GROSSOVÁ, Romana, Norbert WERNER, K. RAJPUROHIT, F. MERNIER, L. KIRAN, K. GABÁNYI, R.E. A. CANNING, P. NULSEN, F. MASSARO, M. SUN, T. CONNOR, A. KING, S.W. ALLEN, R.L.S. FRISBIE, M. DONAHUE a A.C. FABIAN. Powerful AGN jets and unbalanced cooling in the hot atmosphere of IC 4296. \textit{Monthly Notices of the Royal Astronomical Society}. OXFORD: OXFORD UNIV PRESS, 2019, roč.~488, č.~2, s.~1917-1925. ISSN~0035-8711. Dostupné z: https://dx.doi.org/10.1093/mnras/stz1728.

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