J/A+A/689/A301 ILTJ001121.28+321638.8 GMRT, LOFAR and XMM images (Kumari+, 2024)
J0011+3217: A peculiar radio galaxy with a one-sided secondary lobe and
misaligned giant primary lobes.
Kumari S., Pal S., Hardcastle M.J., Horton M.A.
<Astron. Astrophys. 689, A301 (2024)>
=2024A&A...689A.301K 2024A&A...689A.301K (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, radio ; Radio continuum
Keywords: galaxies: active - galaxies: clusters: intracluster medium -
galaxies: ISM - galaxies: kinematics and dynamics
Abstract:
From the LOFAR Two-metre Sky Survey second data release (LoTSS DR2) at
144 MHz, we identified a peculiar radio galaxy, J0011+3217. It has a
large, one-sided diffuse secondary wing that stretches up to 0.85Mpc
(roughly 85% of the size of the primary lobe). The linear size of the
primary lobe of the galaxy is 0.99Mpc. This peculiar source is a giant
radio galaxy with a misaligned primary lobe. There is an optical
galaxy 16kpc (7arcsec) from the host active galactic nucleus of
J0011+3217. J0011+3217 has a radio luminosity of 1.65x1026W/Hz at
144MHz with a spectral index of -0.80 between 144 and 607MHz.
J0011+3217 is located 1.2Mpc from the centre of the Abell 7 cluster.
The Abell 7 cluster has a redshift of 0.104 and a mass (M500) of
3.71x1014M☉. The cluster is associated with strong X-ray
emission. We studied the X-ray emission around the cluster and from
the region surrounding J0011+3217 using an XMM-Newton image of
J0011+3217, and we analysed the velocity structure and spatial
distribution of galaxies in the cluster, showing that J0011+3217
inhabits an offset group of galaxies that are moving with respect to
Abell 7. The off-axis distortion, or bending, of the primary lobe of
J0011+3217 in the outer edges has a strong effect on the relative
motion of the surrounding medium; this in turn causes the bending of
the jets in the opposite direction of the cluster (like wide-angle
tailed sources). We suggest that the morphology of J0011+3217 is
influenced by ram pressure created by the Abell 7 cluster,
highlighting the complex interactions between the source and the
surrounding cluster environment.
Description:
The source was identified using LOFAR data release 2 at 144MHz. The
GMRT image of the source at 610 MHz is also presented. The XMM-Newton
image of the Abell 7 cluster is presented in the paper.
In Figure 4 of the article we overlayed the LOFAR image and optical
image. In Figure 5 image, we overlayed the VLASS image and optical
image. In Figure 7, we overlayed the XMM-Newton image and LOFAR image.
Objects:
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RA (2000) DE Designation(s)
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00 11 19.75 +32 17 09.0 ILTJ001121.28+321638.8 = B2 0008+32
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 196 8 List of fits images
fits/* . 8 Individual fits images
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Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 9 F9.5 deg RAdeg Right Ascension of center (J2000)
10- 18 F9.5 deg DEdeg Declination of center (J2000)
20- 23 I4 --- Nx Number of pixels along X-axis
25- 28 I4 --- Ny Number of pixels along Y-axis
30- 52 A23 "datime" Obs.date Observation date
54- 58 I5 Kibyte size Size of FITS file
60-116 A57 --- FileName Name of FITS file, in subdirectory fits
118-196 A79 --- Title Title of the FITS file
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Acknowledgements:
Sabyasachi Pal, sabya.pal(at)gmail.com
(End) Patricia Vannier [CDS] 12-Sep-2024