J/A+A/658/A4 LOFAR imaging of Arp299 at 150MHz (Ramirez-Olivencia, 2022)
Subarcsecond LOFAR imaging of Arp299 at 150 MHz.
Tracing the nuclear and diffuse extended emission of a bright LIRG.
Ramirez-Olivencia N, Varenius E., Perez-Torres M., Alberdi A., Conway J.E.,
Alonso-Herrero A., Pereira-Santaella M., Herrero-Illa R.
<Astron. Astrophys. 658, A4 (2022)>
=2022A&A...658A...4R 2022A&A...658A...4R (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Galaxies, radio ; Infrared sources ;
Radio continuum ; H II regions ; Magnetic fields
Keywords: instrumentation: high angular resolution - ISM: jets and outflows -
HII regions - ISM: magnetic fields - galaxies: star formation -
radio continuum: galaxies
Abstract:
We present the spatially resolved emission of Arp 299 revealed by 150
MHz international baseline Low-Frequency Array (LOFAR) and 1.4, 5.0,
and 8.4GHz Very Large Array (VLA) observations. Nowadays, LOFAR
allows to compare its resolution with the VLA ones. These will allow
us to obtain pixel-by-pixel spectral imdex maps and local radio SEDs.
With this information we recover the nature of the ISM around the main
structures (either clumpy or continuous), as well as magnetic fields.
The 150MHz image also shows structures never seen before, pointing
out that these radio-frequencies observations are a perfect tool to
detect them.
Description:
A 150MHz LOFAR image and three (1.4, 5.0 and 8.4GHz) VLA
observations of a local LIRG, Arp299 (RA=11:28:30.4, DE=+58:34:10,
by NED), are presented. International Stations of LOFAR has been also
taken into account in the observations, allowing to reach similar
resolutions to the VLA ones.
Objects:
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RA (2000) DE Designation(s)
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11 28 31.33 +58 33 41.8 Arp 299 = NGC 3690
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 114 4 List of fits images
fits/* . 4 Individual fits images
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See also:
J/A+A/658/A2 : LOFAR Long-Baseline Calibrator Survey. II. (Jackson+, 2022)
J/A+A/658/A5 : Hercules A LOFAR and JVLA images (Timmerman+, 2022)
J/A+A/658/A6 : 3C293 high and low resolution maps (Kukreti+, 2022)
J/A+A/658/A8 : Resolved jet of 3C 273 at 150 MHz (Harwood+, 2022)
J/A+A/658/A10 : 3C295 LOFAR, MERLIN and VLA images (Bonnassieux+, 2022)
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- 39 A10 "datime" Obs.date Observation date
41- 51 E11.6 Hz Freq Observed frequency
53- 58 I6 Kibyte size Size of FITS file
60- 84 A25 --- FileName Name of FITS file, in subdirectory fits
86-114 A29 --- Title Title of the FITS file
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Acknowledgements:
Naim Ramirez-Olivencia, naim.ram.oli(at)gmail.com
References:
Ramirez-olivencia et al., 2018A&A...610L..18R 2018A&A...610L..18R
Sub-arcsecond imaging of Arp 299-A at 150 MHz with LOFAR:
Evidence for a starburst-driven outflow.
Morabito et al., Paper I 2022A&A...658A...1M 2022A&A...658A...1M
Jackson et al., Paper II 2022A&A...658A...2J 2022A&A...658A...2J, Cat. J/A+A/658/A2
Sweijen et al., Paper III 2022A&A...658A...3S 2022A&A...658A...3S
Timmerman et al., Paper V 2022A&A...658A...5T 2022A&A...658A...5T, Cat, J/A+A/658/A5
Kukreti et al., Paper VI 2022A&A...658A...6K 2022A&A...658A...6K, Cat, J/A+A/658/A6
Badole et al., Paper VII 2022A&A...658A...7B 2022A&A...658A...7B
Harwood et al., Paper VIII 2022A&A...658A...8H 2022A&A...658A...8H, Cat, J/A+A/658/A8
Groeneveld et al., Paper IX 2022A&A...658A...9G 2022A&A...658A...9G
Bonnassieux et al., Paper X 2022A&A...658A..10B 2022A&A...658A..10B, Cat. J/A+A/658/A10
(End) Patricia Vannier [CDS] 21-Jan-2022