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The interplanetary magnetic field near has a characteristic "sector" structure that reflects its polarity relative to the solar direction. Typically we observe large-scale coherence in these directions, with two or four "away" or "towards"…

Solar and Stellar Astrophysics · Physics 2015-03-17 Hugh Hudson , Leif Svalgaard , Iain Hannah

We present a model of the interaction of interstellar dust grains with a stellar environment, that predicts the distribution of interstellar dust grains in the size range between $0.1 {\rm \mu m}$ and $1 {\rm \mu m}$ around a star for the…

Astrophysics · Physics 2007-05-23 M. Landgraf , P. C. Frisch

We offer a new, more inclusive, picture of the local interstellar medium, where it is composed of a single, monolithic cloud that surrounds the Sun in all directions. Our study of velocities based on Mg II and Fe II ultraviolet absorption…

Astrophysics of Galaxies · Physics 2015-06-23 Cecile Gry , Edward B. Jenkins

Interstellar material surrounding an extrasolar planetary system interacts with the stellar wind to form the stellar astrosphere, and regulates the properties of the interplanetary medium and cosmic ray fluxes throughout the system.…

Astrophysics · Physics 2007-05-23 P. C. Frisch , H. Mueller , G. Zank , C. Lopate

High-resolution ultraviolet observations of nearby bright and faint stars are required to evaluate changes in the past and future galactic environments of the Sun, and the possibly impact of these changes on the interplanetary environment…

Astrophysics · Physics 2007-05-23 P. C. Frisch

The neutral interstellar medium (ISM) inside the Local Bubble (LB) has been known to have properties typical of the warm neutral medium (WNM). However, several recent neutral hydrogen (HI) absorption experiments show evidence for the…

Astrophysics · Physics 2009-06-23 Snezana Stanimirovic

Tiny interstellar dust grains causing the polarization of light from the nearest stars are deflected sideways in the outer heliosheath regions, along with the interstellar magnetic field. Observations of optical polarization of stars beyond…

Astrophysics · Physics 2008-01-09 P. C. Frisch

The galactic environment of the Sun varies over short timescales as the Sun and interstellar clouds travel through space. Small variations in the dynamics, ionization, density, and magnetic field strength of the interstellar medium (ISM)…

Astrophysics · Physics 2015-11-11 Priscilla C. Frisch , Jonathan D. Slavin

The interaction of dust grains originating from the local interstellar cloud with the environment inside the heliosphere is investigated. As a consequence of this interaction the spatial distribution of interstellar dust grains changes with…

Astrophysics · Physics 2015-06-24 M. Landgraf

Recent \herschel\ and \planck\ observations of submillimeter dust emission revealed the omnipresence of filamentary structures in the interstellar medium (ISM). The ubiquity of filaments in quiescent clouds as well as in star-forming…

Astrophysics of Galaxies · Physics 2017-12-05 Doris Arzoumanian

The magnetic structure in the Galactic disk, the Galactic center and the Galactic halo can be delineated more clearly than ever before. In the Galactic disk, the magnetic structure has been revealed by starlight polarization within 2 or 3…

Astrophysics of Galaxies · Physics 2009-11-13 J. L. Han

Because of the dynamic nature of the interstellar medium, the Sun should have encountered a variety of different interstellar environments in its lifetime. As the solar wind interacts with the surrounding interstellar medium to form a…

Astrophysics · Physics 2012-05-09 H. -R. Müller , P. C. Frisch , B. D. Fields , G. P. Zank

Galactic interstellar dust has a profound impact not only on our observations of objects throughout the Universe, but also on the morphology, star formation, and chemical evolution of the Galaxy. The advent of massive imaging and…

Deep R-band CCD linear polarimetry collected for fields with lines-of-sight toward the Lupus I molecular cloud is used to investigate the properties of the magnetic field within this molecular cloud. The observed sample contains about 7000…

Solar and Stellar Astrophysics · Physics 2015-05-01 G. A. P. Franco , F. O. Alves

The solar system is moving through the partially ionized local interstellar cloud (LIC). The ionized matter of the LIC interacts with the expanding solar wind forming the heliospheric interface. The neutral component (interstellar atoms)…

Astrophysics · Physics 2015-06-24 V. V. Izmodenov , J. Geiss , R. Lallement , G. Gloeckler , V. B. Baranov , Y. G. Malama

The interstellar magnetic field (ISMF) near the heliosphere is a basic part of the solar neighborhood that can only be studied using polarized starlight. Results of an ongoing survey of polarized starlight are analyzed with the goal of…

This paper reviews the theoretical approaches and existing models of the solar wind interaction with the Local Interstellar Cloud (LIC). Models discussed take into account the multi-component nature of the solar wind and local interstellar…

Astrophysics · Physics 2007-05-23 Vladislav V. Izmodenov

The Local Interstellar Medium (LISM) is a unique environment that presents an opportunity to study general interstellar phenomena in great detail and in three dimensions. In particular, high resolution optical and ultraviolet spectroscopy…

Astrophysics · Physics 2007-05-23 Seth Redfield

The interaction of the heliosphere with interstellar clouds has attracted interest since the late 1920's, both with a view to explaining apparent quasi-periodic climate "catastrophes" as well as periodic mass extinctions. Until recently,…

Astrophysics · Physics 2009-10-31 Gary P. Zank , Priscilla C. Frisch

Filamentary structures are ubiquitous in the interstellar medium, yet the extent to which magnetic fields influence the morphology of cold atomic gas remains an open question. The nearby Riegel-Crutcher cloud, composed of long and narrow H…

Astrophysics of Galaxies · Physics 2026-05-12 Gabriel A. P. Franco , Mayara Gomides , Zhi-Yun Li , Fabio P. Santos , Farideh S. Tabatabaei