The X-ray nebula around the type 2 Seyfert galaxy NGC 4388

K. Iwasawa; A. S. Wilson; A. C. Fabian; A. J. Young

doi:10.1046/j.1365-8711.2003.06857.x

The X-ray nebula around the type 2 Seyfert galaxy NGC 4388

K. Iwasawa^*, A. S. Wilson, A. C. Fabian, A. J. Young

^*Corresponding author for this work

School of Physics

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Abstract

We report on X-ray emission from the type 2 Seyfert galaxy NGC 4388 observed with the Chandra X-ray Observatory. A hard X-ray peak is found at the position of the active nucleus suggested by optical and radio observations. Extended soft X-ray emission correlates well with the ionization cone found in optical-line emission. A large soft X-ray extension is found up to 16 kpc (and possibly 30 kpc) to the north of the galaxy. Photoionized gas with low ionization parameters (logξ≤ 0.4) appears to be the likely explanation for this emission. The same ionized gas clouds could be responsible for the optical [O iii] emission. Fe Kα line emission from cold material is found to be extended by a few kpc.

Original language	English
Pages (from-to)	369-378
Number of pages	10
Journal	Monthly Notices of the Royal Astronomical Society
Volume	345
Issue number	2
DOIs	https://doi.org/10.1046/j.1365-8711.2003.06857.x
Publication status	Published - 21 Oct 2003

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Publisher Copyright:
© 2003 RAS

Keywords

galaxies: individual: NGC 4388
galaxies: ISM
X-rays: galaxies

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10.1046/j.1365-8711.2003.06857.x

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title = "The X-ray nebula around the type 2 Seyfert galaxy NGC 4388",

abstract = "We report on X-ray emission from the type 2 Seyfert galaxy NGC 4388 observed with the Chandra X-ray Observatory. A hard X-ray peak is found at the position of the active nucleus suggested by optical and radio observations. Extended soft X-ray emission correlates well with the ionization cone found in optical-line emission. A large soft X-ray extension is found up to 16 kpc (and possibly 30 kpc) to the north of the galaxy. Photoionized gas with low ionization parameters (logξ≤ 0.4) appears to be the likely explanation for this emission. The same ionized gas clouds could be responsible for the optical [O iii] emission. Fe Kα line emission from cold material is found to be extended by a few kpc.",

keywords = "galaxies: individual: NGC 4388, galaxies: ISM, X-rays: galaxies",

author = "K. Iwasawa and Wilson, \{A. S.\} and Fabian, \{A. C.\} and Young, \{A. J.\}",

note = "Publisher Copyright: {\textcopyright} 2003 RAS",

year = "2003",

month = oct,

day = "21",

doi = "10.1046/j.1365-8711.2003.06857.x",

language = "English",

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T1 - The X-ray nebula around the type 2 Seyfert galaxy NGC 4388

AU - Iwasawa, K.

AU - Wilson, A. S.

AU - Fabian, A. C.

AU - Young, A. J.

PY - 2003/10/21

Y1 - 2003/10/21

N2 - We report on X-ray emission from the type 2 Seyfert galaxy NGC 4388 observed with the Chandra X-ray Observatory. A hard X-ray peak is found at the position of the active nucleus suggested by optical and radio observations. Extended soft X-ray emission correlates well with the ionization cone found in optical-line emission. A large soft X-ray extension is found up to 16 kpc (and possibly 30 kpc) to the north of the galaxy. Photoionized gas with low ionization parameters (logξ≤ 0.4) appears to be the likely explanation for this emission. The same ionized gas clouds could be responsible for the optical [O iii] emission. Fe Kα line emission from cold material is found to be extended by a few kpc.

AB - We report on X-ray emission from the type 2 Seyfert galaxy NGC 4388 observed with the Chandra X-ray Observatory. A hard X-ray peak is found at the position of the active nucleus suggested by optical and radio observations. Extended soft X-ray emission correlates well with the ionization cone found in optical-line emission. A large soft X-ray extension is found up to 16 kpc (and possibly 30 kpc) to the north of the galaxy. Photoionized gas with low ionization parameters (logξ≤ 0.4) appears to be the likely explanation for this emission. The same ionized gas clouds could be responsible for the optical [O iii] emission. Fe Kα line emission from cold material is found to be extended by a few kpc.

KW - galaxies: individual: NGC 4388

KW - galaxies: ISM

KW - X-rays: galaxies

U2 - 10.1046/j.1365-8711.2003.06857.x

DO - 10.1046/j.1365-8711.2003.06857.x

M3 - Article (Academic Journal)

SN - 0035-8711

VL - 345

SP - 369

EP - 378

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

The X-ray nebula around the type 2 Seyfert galaxy NGC 4388

Abstract

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Keywords

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