CHANG-ES IX: Radio scale heights and scale lengths of a consistent sample of 13 spiral galaxies seen edge-on and their correlations

  title={CHANG-ES IX: Radio scale heights and scale lengths of a consistent sample of 13 spiral galaxies seen edge-on and their correlations},
  author={M. Krause and Judith A. Irwin and Theresa Wiegert and Arpad Miskolczi and A. Damas-Segovia and Rainer Beck and Jiang-Tao Li and George Heald and Peter Muller and Yelena Stein and Richard J. Rand and Volker Heesen and R. A. M. Walterbos and R. J. Dettmar and Carlos J. Vargas and Jayanne English and Eric J. Murphy},
  journal={arXiv: Astrophysics of Galaxies},
The vertical halo scale height is a crucial parameter to understand the transport of cosmic-ray electrons (CRE) and their energy loss mechanisms in spiral galaxies. Until now, the radio scale height could only be determined for a few edge-on galaxies because of missing sensitivity at high resolution. We developed a sophisticated method for the scale height determination of edge-on galaxies. With this we determined the scale heights and radial scale lengths for a sample of 13 galaxies from the… Expand
Context. Low-frequency radio continuum studies of star-forming edge-on galaxies can help to further understand how cosmic-ray electrons (CRe) propagate through the interstellar medium into the haloExpand
Using the Continuum HAloes in Nearby Galaxies - an EVLA Survey (CHANG-ES) radio continuum data from the Karl G. Jansky Very Large Array (VLA) in two frequency bands (C-band, L-band), we analyzed theExpand
In order to gain a better understanding of the influence of cosmic rays (CRs) and magnetic fields in the disk-halo interface of edge-on spiral galaxies, we investigate the radio continuum halo, theExpand
Cosmic-ray electrons (CREs) originating from the star-forming discs of spiral galaxies frequently form extended radio haloes that are best observable in edge-on galaxies. For the present study weExpand
Context. The observation of total and linearly polarized synchrotron radiation of spiral galaxies in the radio continuum reveals the distribution and structure of their magnetic fields. By observingExpand
Radio haloes in nearby galaxies modelled with 1D cosmic ray transport using SPINNAKER
We present radio continuum maps of 12 nearby (D ≤ 27 Mpc), edge-on (i ≥ 76?), latetypespiral galaxies mostly at 1.4 and 5 GHz, observed with the Australia Telescope CompactArray, Very LargeArray,Expand
Investigation of the cosmic ray population and magnetic field strength in the halo of NGC 891
Context. Cosmic rays and magnetic fields play an important role for the formation and dynamics of gaseous halos of galaxies. Aims. Low-frequency radio continuum observations of edge-on galaxies areExpand
Deciphering the radio star formation correlation on kpc scales
(abridged) Within nearby galaxies, variations in the radio-FIR correlation have been observed, mainly because the cosmic ray electrons migrate before they lose their energy via synchrotron emissionExpand
Magnetic Fields and Halos in Spiral Galaxies
Radio continuum and polarization observations reveal best the magnetic field structure and strength in nearby spiral galaxies. They show a similar magnetic field pattern, which is of spiral shapeExpand
LOFAR MSSS: Flattening low-frequency radio continuum spectra of nearby galaxies
Aims. The shape of low-frequency radio continuum spectra of normal galaxies is not well understood, the key question being the role of physical processes such as thermal absorption in shaping them.Expand


CHANG-ES. IV. Radio Continuum Emission of 35 Edge-on Galaxies Observed with the Karl G. Jansky Very Large Array in D Configuration - Data Release 1
We present the first part of the observations made for the Continuum Halos in Nearby Galaxies, an EVLA Survey (CHANG-ES) project. The aim of the CHANG-ES project is to study and characterize theExpand
Continuum Halos in Nearby Galaxies: An EVLA Survey (CHANG-ES). I. Introduction to the Survey
We introduce a new survey to map the radio continuum halos of a sample of 35 edge-on spiral galaxies at 1.5 GHz and 6 GHz in all polarization products. The survey is exploiting the new wide bandwidthExpand
The Far-Infrared--Radio Correlation at High Redshifts: Physical Considerations and Prospects for the Square Kilometer Array
(Abridged) I present a predictive analysis for the behavior of the FIR--radio correlation as a function of redshift in light of the deep radio continuum surveys which may become possible using theExpand
The large scale magnetic field structure of the spiral galaxy NGC 5775
In order to better determine the large-scale 3D-structure of magnetic fields in spiral galaxies we present a Faraday rotation analysis of the edge-on spiral galaxy NGC 5775. Deep radio-continuumExpand
Modelling the cosmic ray electron propagation in M 51
Cosmic ray electrons (CREs) are a crucial part of the ISM and are observed via synchrotron emission. While much modelling has been carried out on the CRE distribution and propagation of the MilkyExpand
Multi-scale radio-infrared correlations in M 31 and M 33: The role of magnetic fields and star formation
Interstellar magnetic fields and the propagation of cosmic ray electrons have an important impact on the radio-infrared (IR) correlation in galaxies. This becomes evident when studying differentExpand
CHANG-ES. III. UGC 10288—An edge-on galaxy with a background double-lobed radio source
This third paper in the Continuum Halos in Nearby Galaxies—an EVLA Survey (CHANG-ES) series shows the first results from our regular data taken with the Karl G. Jansky Very Large Array. The edge-onExpand
Magnetic fields in spiral galaxies
  • M. Krause
  • Physics
  • Proceedings of the International Astronomical Union
  • 2012
The magnetic field structure in edge-on galaxies observed so far shows a plane-parallel magnetic field component in the disk of the galaxy and an X-shaped field in its halo. The plane-parallel fieldExpand
Photometric and spectroscopic studies of star-forming regions within Wolf–Rayet galaxies
We present a study of the properties of star-forming regions within a sample of 7 Wolf-Rayet (WR) galaxies. We analyze their morphologies, colours, star-formation rate (SFR), metallicities, andExpand
Magnetic field formation in the Milky Way like disc galaxies of the Auriga project
The magnetic fields observed in the Milky Way and nearby galaxies appear to be in equipartition with the turbulent, thermal and cosmic ray energy densities, and hence are expected to be dynamicallyExpand