Planck view of the M82 galaxy

Abstract

Planck data towards the galaxy M82 are analyzed in the 70, 100 and 143 GHz bands. A substantial north-south and East-West temperature asymmetry is found, extending up to 1 degree from the galactic center. Being almost frequency-independent, these temperature asymmetries are indicative of a Doppler-induced effect regarding the line-of-sight dynamics on the halo scale, the ejections from the galactic center and, possibly, even the tidal interaction with M81 galaxy. The temperature asymmetry thus acts as a model-independent tool to reveal the bulk dynamics in nearby edge-on spiral galaxies, like the Sunyaev-Zeldovich effect for clusters of galaxies.

4 pages, 3 figures, in press on A&A

References in corpus (6)

• The ACS Nearby Galaxy Survey Treasury
• Warm Molecular Hydrogen in the Galactic Wind of M82
• A panchromatic analysis of starburst galaxy M82: Probing the dust properties
• Planck's confirmation of the M31 disk and halo rotation
• Planck revealed bulk motion of Centaurus A lobes
• Recent developments in astrophysical and cosmological exploitation of microwave surveys

Cited by in corpus (15)

• Messier 81's Planck view vs its halo mapping
• Triangulum galaxy viewed by Planck
• Probing gaseous galactic halos through the rotational kSZ effect
• Rotating baryonic dark halos
• The rotational kinetic Sunyaev-Zeldovich contribution to the temperature asymmetry toward the M31 halo
• Virial clouds explaining the observed rotational asymmetry in the galactic halos
• On the Galactic Halos Rotation by Planck Data
• Seeing the halo rotation of nearby spiral galaxies using Planck data
• On the structure of galactic halos and the microwave temperature maps
• Evolution of virial clouds-I: from surface of last scattering up to the formation of population-III stars
• Messier 90 galactic halo rotation in the microwaves
• On the role of dust in the microwave emission of galactic halos
• The Baryonic Mass Estimates of the Milky Way Halo in the form of High Velocity Clouds
• Galactic sparsity and $\Lambda$-gravity
• Non-thermal emission in the central starburst region of M82