Open AccessTheChandra,Hubble Space Telescope, and VLA View of the Circumnuclear Extended Emission in the Narrow Emission Line Galaxy NGC 2110
Author(s) -
Daniel Evans,
Julia C. Lee,
Maria Kamenetska,
S. C. Gallagher,
Ralph Kraft,
M. J. Hardcastle,
K. A. Weaver
Publication year - 2006
Publication title -
the astrophysical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.376
H-Index - 489
eISSN - 1538-4357
pISSN - 0004-637X
DOI - 10.1086/508680
Subject(s) - physics , astrophysics , galaxy , astronomy , photoionization , hubble space telescope , line (geometry) , emission spectrum , hubble sequence , luminous infrared galaxy , ionization , spectral line , ion , geometry , mathematics , quantum mechanics
We present results from new Chandra and archival HST and VLA imagingobservations of the circumnuclear extended emission in the nearby Type 2Seyfert galaxy NGC 2110. We find resolved soft-band X-ray emission 4'' (~160pc) north of the nucleus, which is spatially coincident with [OIII] emission,but lies just beyond the northern edge of the radio jet in the source. We findthat shock-heating of multi-phase gas clouds can successfully account for thisextended emission, although we cannot rule out alternative models, such as thescattering of nuclear radiation by ionized material, or pure photoionizationfrom the nucleus. In addition, we detect kpc-scale (~30'') extended soft-bandX-ray emission south of the nucleus. Finally, we compare our results for NGC2110 with the prototypical Type 2 Seyfert galaxy NGC 1068, and suggest thatdifferent physical processes could produce extended circumnuclear X-rayemission in Seyfert galaxies.Comment: 25 pages, 7 figures. Accepted for publication in Ap
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom