Results 111 to 120 of about 36,797 (212)

A New Constraint on the Relative Disorder of Magnetic Fields between Neutral Interstellar Medium Phases

The Astrophysical Journal
Utilizing Planck polarized dust emission maps at 353 GHz and large-area maps of the neutral hydrogen (H i ) cold neutral medium (CNM) fraction ( f _CNM ), we investigate the relationship between dust polarization fraction ( p _353 ) and f _CNM in the ...
Minjie Lei, S. E. Clark
doaj   +1 more source

MC-BLOS: Automated Software for Determining the Line-of-sight Component of Magnetic Fields Associated with Molecular Clouds

The Astrophysical Journal
While plane-of-sky magnetic field observations in molecular clouds are now common, observations of their line-of-sight magnetic field remain limited. To address this issue, M. Tahani et al. developed a technique based on Faraday rotation.
Mehrnoosh Tahani, John Ming Ngo, Jennifer Glover, Ryan Clairmont, Gabriel M. Zarazua, René Plume   +5 more
doaj   +1 more source

Assessing Zeeman Measurements of Magnetic Fields in Synthetic H I Observations

The Astrophysical Journal Supplement Series
Zeeman observations provide the only direct probe of line-of-sight (LOS) magnetic fields in the interstellar medium. To evaluate their accuracy and limitations, we generate synthetic H I Zeeman spectra from magnetohydrodynamic simulations and idealized ...
Duo Xu, Peter G. Martin, Stella S. R. Offner, Robert Gutermuth, Michael Y. Grudić, Joshua S. Speagle   +5 more
doaj   +1 more source

Extreme Starlight Polarization Efficiency toward ζ Ophiuchi: A Case for Line-of-sight Foreground Subtraction

The Astronomical Journal
Despite the pervasive nature of interstellar dust and its impact on nearly all observations, most dust corrections employ line-of-sight averages over large angular scales.
Jordan A. Bartlett, Henry A. Kobulnicky
doaj   +1 more source

Study of Magnetic Field and Turbulence in the TeV Halo around the Monogem Pulsar

The Astrophysical Journal
Magnetic fields are ubiquitous in the interstellar medium, including extended objects such as supernova remnants and diffuse halos around pulsars. Its turbulent characteristics govern the diffusion of cosmic rays and the multiwavelength emission from ...
Sunil Malik, Ka Ho Yuen, Huirong Yan
doaj   +1 more source

Observing the interstellar magnetic field

, 1968
Before coming to a more detailed discussion, let us see what ways exist to establish the presence of a magnetic field In the galaxy at all. (Table 1). We shall briefly review these methods one by one.
openaire   +1 more source

Faraday Tomography with CHIME: The “Tadpole” Feature G137+7

The Astrophysical Journal
A direct consequence of Faraday rotation is that the polarized radio sky does not resemble the total intensity sky at long wavelengths. We analyze G137+7, which is undetectable in total intensity but appears as a depolarization feature.
Nasser Mohammed, Anna Ordog, Rebecca A. Booth, Andrea Bracco, Jo-Anne C. Brown, Ettore Carretti, John M. Dickey, Simon Foreman, Mark Halpern, Marijke Haverkorn, Alex S. Hill, Gary Hinshaw, Joseph W. Kania, Roland Kothes, T. L. Landecker, Joshua MacEachern, Kiyoshi W. Masui, Aimee Menard, Ryan R. Ransom, Wolfgang Reich, Patricia Reich, J. Richard Shaw, Seth R. Siegel, Mehrnoosh Tahani, Alec J. M. Thomson, Tristan Pinsonneault-Marotte, Haochen Wang, Jennifer L. West, Maik Wolleben, Dallas Wulf, CHIME and GMIMS Collaborations   +30 more
doaj   +1 more source

Direct Samples of Interstellar and Interplanetary Material with IMAP. [PDF]

Space Sci Rev
Szalay JR, Provornikova E, Ayari E, Bzowski M, Christian ER, Funsten HO, Galli A, Gkioulidou M, Horányi M, Livi S, McComas DJ, Möbius E, Ogasawara K, Rahmanifard F, Rankin JS, Reisenfeld DB, Schwadron NA, Sternovsky Z, Swaczyna P, Turner D, Zank GP, Zirnstein EJ.   +21 more
europepmc   +1 more source

IMAP's Role in Understanding Particle Injection and Energization Throughout the Heliosphere. [PDF]

Space Sci Rev
Cohen CMS, Alterman BL, Baker DN, Bruno A, Bzowski M, Christian ER, Cohen IJ, Dalla S, Dayeh MA, Desai MI, Elliott HA, Giacalone J, Gkioulidou M, Guo F, Horbury T, Kanekal SG, Kowalska-Leszczyńska I, Lee CO, Livadiotis GI, Luhmann JG, Matthaeus WH, McComas DJ, Mitchell JG, Moebius E, Rankin J, Richardson JD, Schwadron NA, Skoug R, Turner D, Zank G, Zirnstein EJ.   +30 more
europepmc   +1 more source

Increased and varied radiation during the Sun's encounters with cold clouds in the last 10 million years. [PDF]

Sci Rep
Opher M, Giacalone J, Loeb A, Economo EP, Cummings A, Middleton J, Zucker C, Miller JA, Nica A, Hatzaki M.   +9 more
europepmc   +1 more source