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Related papers: 3D ISM structure challenges the Serkowski relation

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We dendrogram the Leike et al. 2020 3D dust map, leveraging its $\sim 1$ pc spatial resolution to produce a uniform catalog of molecular clouds in the solar neighborhood. Using accurate distances, we measure the properties of 65 clouds in…

Astrophysics of Galaxies · Physics 2024-02-02 Shlomo Cahlon , Catherine Zucker , Alyssa Goodman , Charles Lada , João Alves

Star-forming galaxies (SFGs) adhere to a surprisingly tight scaling relation of dust attenuation parameterized by the infrared excess (IRX=$L_{\rm IR}/L_{\rm UV}$), being jointly determined by the star formation rate (SFR), galaxy size…

Astrophysics of Galaxies · Physics 2024-02-01 J. Qin , X. Z. Zheng , S. Wuyts , Z. Lv , M. Qiao , J. -S. Huang , F. S. Liu , A. Katsianis , V. Gonzalez , F. Bian , H. Xu , Z. Pan , W. Liu , Q. -H. Tan , F. X. An , D. D. Shi , Y. Zhang , R. Wen , S. Liu , C. Yang

Interstellar dust grains are often aligned. If the grain alignment direction varies along the line of sight, the thermal emission becomes circularly-polarized. In the diffuse interstellar medium, the circular polarization at far-infrared…

Astrophysics of Galaxies · Physics 2025-04-07 B. T. Draine

We present a study of the circumstellar environment of IRAS 04158+2805 based on multi-wavelength observations and models. Images in the optical and near-infrared, a polarisation map in the optical, and mid-infrared spectra were obtained…

Astrophysics · Physics 2009-11-13 A. M. Glauser , F. Ménard , C. Pinte , G. Duchêne , M. Güdel , J. -L. Monin , D. L. Padgett

The diffuse interstellar medium (ISM) is an integral part of the evolution of the entire Galaxy. Metals are produced by stars and their abundances are the direct testimony of the history of stellar evolution. However, the interstellar dust…

Astrophysics of Galaxies · Physics 2014-03-20 C. Pinto , J. S. Kaastra , E. Costantini , C. de Vries

Distance estimates derived from spectroscopy or parallax have been unified by considering extinction by large grains. The addition of such a population of what is called Dark Dust to models of the diffuse interstellar medium is tested…

Astrophysics of Galaxies · Physics 2023-02-22 Ralf Siebenmorgen

The polarisation of light induced by aligned interstellar dust serves as a significant tool in investigating cosmic magnetic fields, dust properties, and poses a challenge in characterising the polarisation of the cosmic microwave…

We present a novel framework to self-consistently model the effects of radiation fields, dust physics and molecular chemistry (H$_2$) in the interstellar medium (ISM) of galaxies. The model combines a state-of-the-art radiation…

Polarized thermal emission from Galactic dust is the dominant foreground for CMB polarization measurements at high frequencies, with its statistical properties set by the interplay between turbulence and magnetic fields in the multiphase…

Astrophysics of Galaxies · Physics 2026-01-27 Yue Hu , Bao Truong , Thiem Hoang , Le Ngoc Tram

Polarized dust emission is widely used to trace the plane-of-the-sky (POS) component of interstellar magnetic fields in two dimensions. Its potential to access three-dimensional magnetic fields, including the inclination angle of the…

Astrophysics of Galaxies · Physics 2023-01-04 Yue Hu , A. Lazarian

The polarization of the Cosmic Microwave Background (CMB) is rich in information but obscured by foreground emission from the Milky Way's interstellar medium (ISM). To uncover relationships between the underlying turbulent ISM and the…

Astrophysics of Galaxies · Physics 2024-06-11 Kye A. Stalpes , David C. Collins , Kevin M. Huffenberger

Tons of space particles enter the Earth atmosphere every year, being detected when they produce fireballs, meteor showers, or when they impact the Earth surface. Particle detection in the showers could also be attempted from space using…

Earth and Planetary Astrophysics · Physics 2023-10-16 Jennifer López-Viejobueno , Leire Beitia-Antero , Ana I. Gómez de Castro

ALMA observations revealed recently polarised radiation of several protoplanetary disks in the (sub-)millimetre wavelength range. Besides self-scattering of large particles, thermal emission by elongated grains is a potential source for the…

Earth and Planetary Astrophysics · Physics 2019-07-10 Florian Kirchschlager , Gesa H. -M. Bertrang , Mario Flock

We present an original data analysis and a physical model that provide new insights into the origin of, and relationship between, two observables of the dusty, polarized Galaxy at intermediate and high latitudes: (i) the misalignment…

Astrophysics of Galaxies · Physics 2025-12-15 Andrea Bracco , Ari J. Cukierman , Raphael Skalidis , François Boulanger

Interstellar polarization from aligned dust grains can be measured both in transmission at visible and near-infrared wavelengths and in emission at far-infrared and sub-mm wavelengths. These observations can help predict the behavior of…

Astrophysics · Physics 2015-06-24 Terry J. Jones

3D maps of the ISM can be used to locate not only IS clouds, but also IS bubbles between the clouds that are blown by stellar winds and supernovae. We compare our 3D maps of the IS dust to the ROSAT diffuse X-ray background maps. In the…

Astrophysics of Galaxies · Physics 2015-06-18 L. Puspitarini , R. Lallement , J. L. Vergely , S. L. Snowden

We present a synthesis of the astronomical observations constraining the wavelength-dependent extinction, emission, and polarization from interstellar dust from UV to microwave wavelengths on diffuse Galactic sightlines. Representative…

Astrophysics of Galaxies · Physics 2021-01-19 Brandon S. Hensley , B. T. Draine

We compiled the polarimetric data for a sample of lines of sight with known abundances of Mg, Si, and Fe. We correlated the degree of interstellar polarization $P$ and polarization efficiency (the ratio of $P$ to the colour excess $E(B-V)$…

Astrophysics of Galaxies · Physics 2015-06-04 N. V. Voshchinnikov , Th. Henning , M. S. Prokopjeva , H. K. Das

Many massive stars travel through the interstellar medium at supersonic speeds. As a result they form bow shocks at the interface between the stellar wind. We use numerical hydrodynamics to reproduce such bow shocks numerically, creating…

Solar and Stellar Astrophysics · Physics 2015-06-22 Allard Jan van Marle , Leen Decin , Nick Cox , Zakaria Meliani

Scattering of re-emitted flux is considered to be at least partially responsible for the observed polarisation in the (sub-)millimetre wavelength range of several protoplanetary disks. Although the degree of polarisation produced by…

Solar and Stellar Astrophysics · Physics 2020-08-26 Robert Brunngräber , Sebastian Wolf