J/ApJ/645/256 XMM observations of Fornax A (NGC 1316) (Isobe+, 2006)
The XMM-Newton examination of energetics in the east lobe of the nearby radio
galaxy Fornax A (NGC 1316).
Isobe N., Makishima K., Tashiro M., Itoh K., Iyomoto N., Takahashi I.,
Kaneda H.
<Astrophys. J., 645, 256-263 (2006)>
=2006ApJ...645..256I 2006ApJ...645..256I
ADC_Keywords: Galaxies, radio ; X-ray sources
Keywords: galaxies: individual (Fornax A) - magnetic fields -
radiation mechanisms: nonthermal - radio continuum: galaxies -
X-rays: galaxies
Abstract:
An XMM-Newton observation of the east radio lobe of the nearby radio
galaxy Fornax A is reported. The diffuse hard X-ray emission
associated with the east lobe, which was initially discovered by ASCA
and ROSAT, is confirmed with significant signal statistics, after
strictly removing 59 sources detected within the MOS field of view.
Its X-ray spectrum is described by a single power-law model, which is
absorbed by a medium with a column density consistent with that toward
the object.
Description:
Observation was made on 2002 Feb 03 with the two MOS (MOS1 and MOS2)
cameras and the European Photon Imaging Camera (EPIC pn) on board
XMM-Newton.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 128 59 List of Sources Detected within the MOS FOV
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See also:
J/ApJ/586/826 : Chandra X-ray observations of NGC 1316 (Kim+, 2003)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- [IMT2006] Source sequential number
4- 5 I2 h RAh Right ascension (J2000)
6- 7 I2 min RAm Right ascension (J2000)
8- 11 F4.1 s RAs Right ascension (J2000)
12 A1 --- DE- Declination sign (J2000)
13- 14 I2 deg DEd Declination (J2000)
15- 16 I2 arcmin DEm Declination (J2000)
17- 18 I2 arcsec DEs Declination (J2000)
20- 23 F4.2 arcsec ePos Positional error
25- 29 F5.2 10-3ct/s CR1s ?=- Detected sources count rate in the soft
(0.3-1.5keV) band with MOS1 (1)
31- 34 F4.2 10-3ct/s e_CR1s ?=- rms uncertainty on CR1s
36- 40 F5.2 10-3ct/s CR1h ?=- Detected sources count rate in the hard
(1.5-10keV) band with MOS1 (1)
42- 45 F4.2 10-3ct/s e_CR1h ?=- rms uncertainty on CR1h
47- 51 F5.2 --- HR1 ?=- Harness ratio with MOS1 (2)
53- 56 F4.2 --- e_HR1 ?=- rms uncertainty on HR1
58- 62 F5.2 10-3ct/s CR2s ?=- Detected sources count rate in the soft
(0.3-1.5keV) band with MOS2 (1)
64- 67 F4.2 10-3ct/s e_CR2s ?=- rms uncertainty on CR2s
69- 73 F5.2 10-3ct/s CR2h ?=- Detected sources count rate in the hard
(1.5-10keV) band with MOS2 (1)
75- 78 F4.2 10-3ct/s e_CR2h ?=- rms uncertainty on CR2h
80- 84 F5.2 --- HR2 ?=- Harness ratio with MOS2 (2)
86- 89 F4.2 --- e_HR2 ?=- rms uncertainty on HR2
91-113 A23 --- Nsrc Nearby Source (3)
114-128 A15 --- Nsrc2 Second Nearby Source (3)
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Note (1): Detected sources count rate in the soft (0.3-1.5keV) and hard
(1.5-10keV) bands. Assuming a PL spectrum of a photon index of 2
modified with the Galactic absorption, a count rate of 10-2ct/s in
the soft and the hard band corresponds to a flux of 8.62x10-14 and
2.36x10-13erg/cm2/s, respectively.
Note (2): Hardness ratio, defined as HR=(H-S)/(H+S). A PL spectrum of a
photon index of 1.5, 2.0, and 2.5 corresponds to HR=-0.06, -0.34, and
-0.56, respectively.
Note (3): Nearby sources found in the NASA/IPAC Extragalactic Database
(NED) within 15" (which corresponds to the half-power diameter of MOS)
from the detected source. (HB89 0321-374 = [HB93] 0321-374 in Simbad)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 02-Oct-2007