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Monopole and dipole estimation for multi-frequency sky maps by linear regression
I. K. Wehus, U. Fuskeland, H. K. Eriksen +9
We describe a simple but efficient method for deriving a consistent set of monopole and dipole corrections for multi-frequency sky map data sets, allowing robust parametric compone…
Power asymmetry in WMAP and Planck temperature sky maps as measured by a local variance estimator
Y. Akrami, Y. Fantaye, A. Shafieloo +4
We revisit the question of hemispherical power asymmetry in the WMAP and Planck temperature sky maps by measuring the local variance over the sky and on disks of various sizes. For…
Planck intermediate results. XVIII The millimetre and sub-millimetre emission from planetary nebulae
Planck Collaboration, M. Arnaud, F. Atrio-Barandela +158
Late stages of stellar evolution are characterized by copious mass-loss events whose signature is the formation of circumstellar envelopes (CSE). Planck multi-frequency measurement…