SIMBAD references

2019A&A...622A..23N - Astronomy and Astrophysics, volume 622A, 23-23 (2019/2-1)

Exploring the properties of low-frequency radio emission and magnetic fields in a sample of compact galaxy groups using the LOFAR Two-Metre Sky Survey (LoTSS).

NIKIEL-WROCZYNSKI B., BERGER A., HERRERA RUIZ N., BOMANS D.J., BLEX S., HORELLOU C., PALADINO R., BECKER A., MISKOLCZI A., BECK R., CHYZY K., DETTMAR R.-J., HEALD G., HEESEN V., JAMROZY M., SHIMWELL T.W. and TASSE C.

Abstract (from CDS):

We use the LOFAR Two-metre Sky Survey (LoTSS) Data Release I to identify the groups of galaxies (and individual galaxies) from the Hickson compact groups (HCG) and magnitude-limited compact groups (MLCG) samples that emit at the frequency of 150MHz, characterise their radio emission (extended or limited to the galaxies), and compare new results to earlier observations and theoretical predictions. The detection of 73 systems (and 7 more - probably) out of 120, of which as many as 17 show the presence of extended radio structures, confirms the previous hypothesis of the common character of the magnetic field inside galaxy groups and its detectability. In order to investigate the future potential of low-frequency radio studies of galaxy groups, we also present a more detailed insight into four radio-emitting systems, for which the strength of the magnetic field inside their intergalactic medium (IGM) is calculated. The estimated values are comparable to that found inside star-forming galaxies, suggesting a dynamical and evolutionary importance of the magnetic field in galaxy groups.

Abstract Copyright: © ESO 2019

Journal keyword(s): radio continuum: galaxies - galaxies: groups: general - galaxies: magnetic fields - magnetic fields

VizieR on-line data: <Available at CDS (J/A+A/622/A23): tablea1.dat tablea2.dat>

Status in Simbad:  being processed

Simbad objects: 92

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2019A&A...622A..23N and select 'bookmark this link' or equivalent in the popup menu


2020.02.24-00:43:46

© Université de Strasbourg/CNRS

    • Contact