Planck view of the M 82 galaxy

Authors :: Asghar Qadir
S. Sargsyan
Daniele Vetrugno
A. L. Kashin
F. De Paolis
Vahe Gurzadyan
G. Yegorian
Ph. Jetzer
H. G. Khachatryan
A. A. Nucita
G. Ingrosso
Gurzadyan, V. G.
DE PAOLIS, Francesco
Nucita, Achille
Ingrosso, Gabriele
Kashin, A. L.
Khachatryan, H. G.
Sargsyan, S.
Yegorian, G.
Jetzer, P. h.
Qadir, A.
Vetrugno, Daniele
Publication Year :: 2015
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.<br />4 pages, 3 figures, in press on A&A

Tools