The interstellar dust emission spectrum Going beyond the single-temperature grey body

Article Astronomy & Astrophysics

Dust moments: towards a new modeling of the galactic dust emission for CMB B-modes analysis

A. Mangilli et al.

Summary: The study focuses on the spectral energy distribution of dust emission and its significance in the quest for primordial B-modes, expanding the dust SED at the power spectrum level to address uncertainties in current approximations. High-order moments are demonstrated to be essential for fitting the Planck data accurately, highlighting the importance of understanding spatial variations in MBB parameters for future CMB B-mode experiments.

ASTRONOMY & ASTROPHYSICS (2021)

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Article Astronomy & Astrophysics

AzTEC survey of the central molecular zone: increasing spectral index of dust with density

Yuping Tang et al.

Summary: Through a Bayesian modeling and joint spectral energy distribution analysis, this study investigates the dust properties in the Central Molecular Zone of our Galaxy, revealing an increasing trend of dust spectral index beta towards dense peaks. This environmental dependence of beta could have significant implications for the determination of dust temperature in other studies.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2021)

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Article Astronomy & Astrophysics

Observational Constraints on the Physical Properties of Interstellar Dust in the Post-Planck Era

Brandon S. Hensley et al.

Summary: This paper presents a synthesis of astronomical observations on diffuse Galactic sight lines, constraining the wavelength-dependent extinction, emission, and polarization from interstellar dust across UV to microwave wavelengths. Special emphasis is placed on dust polarimetry, including various aspects of polarization and its connection to optical and far-infrared emissions, with the goal of reproducing these constraints in models of dust in the diffuse interstellar medium.

ASTROPHYSICAL JOURNAL (2021)

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Review Astronomy & Astrophysics