Messier 81's Planck view vs its halo mapping

Abstract

This paper is a follow-up of a previous paper about the M82 galaxy and its halo based on Planck observations. As in the case of M82, so also for the M81 galaxy a substantial North-South and East-West temperature asymmetry is found, extending up to galactocentric distances of about $1.5^{\circ }$. The temperature asymmetry is almost frequency independent and can be interpreted as a Doppler-induced effect related to the M81 halo rotation and/or triggered by the gravitational interaction of the galaxies within the M81 Group. Along with the analogous study of several nearby edge-on spiral galaxies, the CMB temperature asymmetry method thus is shown to act as a direct tool to map the galactic haloes and/or the intergalactic bridges, invisible in other bands or by other methods.

5 pages, 3 figures, in press in Astronomy and Astrophysics, Main Journal

References in corpus (10)

• Discovery of New Dwarf Galaxies in the M81 Group
• Star-formation in the HI bridge between M81 and M82
• Properties of Local Group galaxies in hydrodynamical simulations of sterile neutrino dark matter cosmologies
• The mass dependence of dark matter halo alignments with large-scale structure
• Porosity criterion for hyperbolic voids and the cosmic microwave background
• Galaxy cluster's rotation
• Planck's confirmation of the M31 disk and halo rotation
• Triangulum galaxy viewed by Planck
• Searching for Galactic hidden gas through interstellar scintillation: Results from a test with the NTT-SOFI detector
• Towards understanding the Planck thermal dust models

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• On the Lambda-evolution of galaxy clusters
• Gravity lens critical test for gravity constants and dark sector
• Probing gaseous galactic halos through the rotational kSZ effect
• Rotating baryonic dark halos
• Virial clouds explaining the observed rotational asymmetry in the galactic halos
• Thermodynamics of galaxy clusters in modified Newtonian potential
• The rotational kinetic Sunyaev-Zeldovich contribution to the temperature asymmetry toward the M31 halo
• Lense-Thirring precession and modified gravity constraints
• 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
• Observational scalings testing modified gravity
• 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