Structure and Features of the Galactic Magnetic-Field Reversals Formation

Andreasyan, R. R.; Михайлов, Е. А.; Andreasyan, H. R.

doi:10.1134/s1063772920030014

Cited by 18 publications

(9 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We can do here an averaging of the annulus's bottom Galactic radius, and another averaging of the annulus's top Galactic radius. All the radii above for the top of the annulus are at or above 7.1 kpc (except for the [34] paper and the [35] paper). Including those papers, the root mean square (rms) is large (±0.20 kpc).…”

Section: Location Of the Total Synchrotron Emission Peak Amongmentioning

confidence: 99%

Superposing the Magnetic Spiral Structure of the Milky Way, on the Stellar Spiral Arms—Matching the Unique Galactic Magnetic Field Reversal Zone with Two Galactic Spiral Arm Segments

Vallée¹

2022

IJAA

View full text Add to dashboard Cite

To pinpoint the peak location of the synchrotron total intensity emission in a spiral arm, we use a map of the spiralarm locations (from the observed arm tangent). Thus in a typical spiral arm in Galactic Quadrant I, we find the peak of the synchrotron radiation to be located about 220 ± 40 pc away from the inner arm edge (hot dust lane) inside the spiral arm. While most of the galactic disk has a clockwise large-scale magnetic field, we make a statistical analysis to delimitate more precisely the smaller reverse annulus with a counterclockwise galactic magnetic field. We find an annulus width of 2.1 ± 0.3 kpc (measured along the Galactic radius), located from 5.5 to 7.6 kpc from the Galactic Center). The annulus does not overlay with a single spiral arm-it encompasses segments of two different spiral arms. Using a recent delineation of the position of spiral arms, the field-reversed annulus is seen to encompass the Crux-Centaurus arm (in Galactic Quadrant IV) and the Sagittarius arm (in Galactic Quadrant I). Thus the full Sagittarius-Carina arm is composed of: 1) a Sagittarius arm (in Galactic quadrant I) with a counterclockwise magnetic field, and 2) a Carina arm (in Galactic Quadrant IV) with a clockwise magnetic field. Also the full Scutum-Crux-Centaurus arm is composed of: 1) a Scutum arm (in Galactic Quadrant I) with a clockwise magnetic field, and 2) a Crux-Centaurus arm (in Galactic Quadrant IV) with a counterclockwise magnetic field. Arm segments do not all have the same magnetic field direction. For completeness, we display 6 known magnetised advancing supershells around the Sun (within 400 pc), pushing out the interstellar magnetic field.

show abstract

Section: Location Of the Total Synchrotron Emission Peak Amongmentioning

confidence: 99%

Superposing the Magnetic Spiral Structure of the Milky Way, on the Stellar Spiral Arms—Matching the Unique Galactic Magnetic Field Reversal Zone with Two Galactic Spiral Arm Segments

Vallée¹

2022

IJAA

View full text Add to dashboard Cite

show abstract

“…In Andreasyan et al (2020) is modeled reversals of Galactic magnetic field using the so-called no-z approximation based on the fact that the galactic disk is sufficiently thin. The magnetic field generation that exhibit both single and double sign changes with distance from the center is observed.…”

Section: The Magnetic Field Of the Galaxymentioning

confidence: 99%

On the Magnetic Fields of Galaxies

Andreasyan

2021

ComBAO

Self Cite

View full text Add to dashboard Cite

show abstract

“…In Andreasyan et al (2020) using pulsars rotation measure data was studied the magnetic field in the plane of Galaxy. It was shown, that distribution of signs of large (| RM |> 200rad/m 2 ) rotation measures of pulsars are in good agreement with the concentric ring model with the anticlockwise direction of magnetic field in the galactocentric ring with radius 5 kpc < R < 7 kpc and reversal of direction at the radius 7 kpc (Fig.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Field in some Selected Directions of the Galaxy: Sagittarius Spiral Arm

Andreasyan

Paronyan

Suqiasyan

2022

ComBAO

View full text Add to dashboard Cite

Faraday rotation data on 180 pulsars are used in a detail study of the magnetic field in the direction of galactic longitude 40◦ < l < 70◦, including the Sagittarius spiral arm region. The highly regular magnetic field in northern hemisphere of galaxy is directed to the Sun, when the magnetic field of southern hemisphere is directed from the Sun. We propose that the Sagittarius spiral arm lies mainly to the north of the Galactic plane, while the magnetic field with opposite direction below this plane is the field of the halo of the southern hemisphere of the Galaxy.

show abstract

Structure and Features of the Galactic Magnetic-Field Reversals Formation

Cited by 18 publications

References 33 publications

Superposing the Magnetic Spiral Structure of the Milky Way, on the Stellar Spiral Arms—Matching the Unique Galactic Magnetic Field Reversal Zone with Two Galactic Spiral Arm Segments

Superposing the Magnetic Spiral Structure of the Milky Way, on the Stellar Spiral Arms—Matching the Unique Galactic Magnetic Field Reversal Zone with Two Galactic Spiral Arm Segments

On the Magnetic Fields of Galaxies

Magnetic Field in some Selected Directions of the Galaxy: Sagittarius Spiral Arm

Contact Info

Product

Resources

About