High Latitude Dust and the 617 MHz - 850 μm relation in NGC 5775

Abstract

We present continuum observations of the edge-on spiral galaxy NGC 5775 at 617 MHz with the Giant Metrewave Radio Telescope (GMRT) and at 850 μm with the Submillimetre Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope (JCMT). We report the detection of dust at high-latitudes, extending to about 5 kpc from the disk of the galaxy, and spurs of non-thermal radio emission. The 617 MHz and 850 μm distributions are compared with one another and we find a strong correlation between metre wavelength radio emission and sub-mm emission in the disk and at high-latitudes. This suggests that there may be a more fundamental relationship between cold dust and synchrotron radiation other than the link via star formation.

arXiv comment7 pages, 9 figures, accepted for publication in MNRAS

References in corpus (4)

• (Sub)millimetre emission from NGC 1569: an abundance of very small grains
• High Latitude Radio Emission in a Sample of Edge-On Spiral Galaxies
• NGC 5775: anatomy of a disk-halo interface
• Intergalactic cold dust in the NGC 4631 group

Cited by in corpus (7)

• Continuum Halos in Nearby Galaxies -- an EVLA Survey (CHANG-ES) -- I: Introduction to the Survey
• Chandra Observation of the Edge-on Spiral NGC 5775: Probing the Hot Galactic Disk/Halo Connection
• Discovery of PAHs in the Halo of NGC 5907
• PAHs in the Halo of NGC 5529
• CHANG-ES XXV: HI Imaging of Nearby Edge-on Galaxies -- Data Release 4
• A Dynamical Study of Extraplanar Diffuse Ionized Gas in NGC 5775
• The 617 MHz - $\lambda$ 850 $\mu$m Correlation (Cosmic Rays and Cold Dust) in NGC 3044 and NGC 4157