interstellar magnetic field, heliosphere, superbubble
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interstellar magnetic field, heliosphere, superbubble
Connecting the interstellar magnetic field at the heliosphere to the Loop I superbubble
http://arxiv.org/abs/1409.5428
Direct observation and calibrated data is my nirvana.
Enjoy in Peace, CL
http://arxiv.org/abs/1409.5428
Direct observation and calibrated data is my nirvana.
Enjoy in Peace, CL
"Nothing is rich but the inexhaustible wealth of nature. She shows us only surfaces, but she is a million fathoms deep" - Emerson
http://astroandmusic.blogspot.com/
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Re: interstellar magnetic field, heliosphere, superbubble
How would we confirm this?Measurements of linearly polarized starlight provide the only test of the magnetic field threading the CLIC.
"It is dangerous to be right in matters where established men are wrong."
"Doubt is not an agreeable condition, but certainty is an absurd one."
"Those who can make you believe absurdities, can make you commit atrocities." Voltaire
"Doubt is not an agreeable condition, but certainty is an absurd one."
"Those who can make you believe absurdities, can make you commit atrocities." Voltaire
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Re: interstellar magnetic field, heliosphere, superbubble
It's a hierarchy of interacting spinning bubbles, with stars and galaxies inside dusty filaments forming circuits.
- Solar
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Re: interstellar magnetic field, heliosphere, superbubble
HA!! Thank you CL
Any paper referencing the work of Redfield & Linsky, P. Firsch, LIC, G-cloud, IBEX Ribbon has my immediate attention. This is a pretty nice coverage and qualifies as pure G-Cloud Thread gold! Now we add the electrodynamics from the advancing 'front's of Loop 1 superbubble (the same bubble that tore the tendon of BICEP2) and others in a 'step-down' electrodynamic induction function roughly horizontal along the the galactic plane of:
Loop 1 Superbubble ----> Aquilar Rift molecular cloud ----> Northern Spur ----> Sco-Cen association ---> our local “bubble”
... included with roughly North-South galactic currents (parallel circuit) associated with the "Galactic Chimney" with its "magnetic vorticity" piercing above and below the galactic plane. That is a marvelous circuital relationship without even considering the spiral arms.
Celeste; check this one out.
Any paper referencing the work of Redfield & Linsky, P. Firsch, LIC, G-cloud, IBEX Ribbon has my immediate attention. This is a pretty nice coverage and qualifies as pure G-Cloud Thread gold! Now we add the electrodynamics from the advancing 'front's of Loop 1 superbubble (the same bubble that tore the tendon of BICEP2) and others in a 'step-down' electrodynamic induction function roughly horizontal along the the galactic plane of:
Loop 1 Superbubble ----> Aquilar Rift molecular cloud ----> Northern Spur ----> Sco-Cen association ---> our local “bubble”
... included with roughly North-South galactic currents (parallel circuit) associated with the "Galactic Chimney" with its "magnetic vorticity" piercing above and below the galactic plane. That is a marvelous circuital relationship without even considering the spiral arms.
Celeste; check this one out.
"Our laws of force tend to be applied in the Newtonian sense in that for every action there is an equal reaction, and yet, in the real world, where many-body gravitational effects or electrodynamic actions prevail, we do not have every action paired with an equal reaction." — Harold Aspden
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Re: interstellar magnetic field, heliosphere, superbubble
Solar, Yes,Thanks! Thanks CL! That article will keep me busy for days. Right away,this jumps out:
"The polarity of the local ISMF is not defined close to the Sun by astronomical data. It has been
measured by Voyager 1 in the heliosphere depletion region, and the field was found to be directed
upwards out of the ecliptic plane". In other words, as Earth circles the sun, it circles around the background magnetic field lines (Charles Chandler will like to see that). Earth (or our whole solar system if you consider Cruttenden's work) precesses around this background magnetic field direction. We already knew that if our whole solar system precesses,it does so around the larger scale magnetic field lines, so it's nice to see measurements confirming this direction for the background field.
"The polarity of the local ISMF is not defined close to the Sun by astronomical data. It has been
measured by Voyager 1 in the heliosphere depletion region, and the field was found to be directed
upwards out of the ecliptic plane". In other words, as Earth circles the sun, it circles around the background magnetic field lines (Charles Chandler will like to see that). Earth (or our whole solar system if you consider Cruttenden's work) precesses around this background magnetic field direction. We already knew that if our whole solar system precesses,it does so around the larger scale magnetic field lines, so it's nice to see measurements confirming this direction for the background field.
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Re: interstellar magnetic field, heliosphere, superbubble
Solar,
Correct me if I'm wrong, but in Section 4,page 6 http://arxiv.org/pdf/1409.5428v1.pdf they do seem to be mapping the magnetic fields of a filament that are exactly as Donald Scott models? They see a filament,where the magnetic field is mapped by the green lines in their figure 2. In our original filament model, we had a filament flowing along a background magnetic field, but the field OF the filament wrapped around it. Which means if we have a filament flowing across our field of view, we should see stars through a magnetic field pointed upwards or downwards (depending which direction the field wraps around the filament).
In Scott's model, the magnetic field of the filament, changes direction with radius. When we see a star in a filament, we see it through the combined magnetic field of the filament and the background magnetic field. The backgrounf field is along the filament axis, and the field of the filament continuously changes direction with radius. So when we take "the weighted mean of the sine of those position angles", all we are left with is the background magnetic field direction,aligned with the filament axis.
At any rate, we are not seeing for stars in this filament, any significant component of magnetic field direction in one direction around the filament axis.
Even better, when we look a stars at varying distances, we see "the linear decrease of the polarization position angles with distance". Again, this is what is expected if we look radially across one of Dr. Scott's filaments (which we are if the filament itself stretches as "an elongated spatial grouping" across our field of view).
If anyone finds this, please let me know:
[22] P. C. Frisch, B.-G. Andersson, A. Berdyugin, V. Piirola, H. O. Funsten, A. M. Magalhaes, D. B.
Seriacopi, D. J. McComas, N. A. Schwadron, J. D. Slavin, and S. J. Wiktorowicz. Structure in the
Local Interstellar Magnetic Field: Identifying the component that extends to the heliosphere location.
ApJ, in preparation, 2014.
Correct me if I'm wrong, but in Section 4,page 6 http://arxiv.org/pdf/1409.5428v1.pdf they do seem to be mapping the magnetic fields of a filament that are exactly as Donald Scott models? They see a filament,where the magnetic field is mapped by the green lines in their figure 2. In our original filament model, we had a filament flowing along a background magnetic field, but the field OF the filament wrapped around it. Which means if we have a filament flowing across our field of view, we should see stars through a magnetic field pointed upwards or downwards (depending which direction the field wraps around the filament).
In Scott's model, the magnetic field of the filament, changes direction with radius. When we see a star in a filament, we see it through the combined magnetic field of the filament and the background magnetic field. The backgrounf field is along the filament axis, and the field of the filament continuously changes direction with radius. So when we take "the weighted mean of the sine of those position angles", all we are left with is the background magnetic field direction,aligned with the filament axis.
At any rate, we are not seeing for stars in this filament, any significant component of magnetic field direction in one direction around the filament axis.
Even better, when we look a stars at varying distances, we see "the linear decrease of the polarization position angles with distance". Again, this is what is expected if we look radially across one of Dr. Scott's filaments (which we are if the filament itself stretches as "an elongated spatial grouping" across our field of view).
If anyone finds this, please let me know:
[22] P. C. Frisch, B.-G. Andersson, A. Berdyugin, V. Piirola, H. O. Funsten, A. M. Magalhaes, D. B.
Seriacopi, D. J. McComas, N. A. Schwadron, J. D. Slavin, and S. J. Wiktorowicz. Structure in the
Local Interstellar Magnetic Field: Identifying the component that extends to the heliosphere location.
ApJ, in preparation, 2014.
- Solar
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Re: interstellar magnetic field, heliosphere, superbubble
Yep, I'm 'seeing' that. Unfortunately we have to wait on the above forth coming paper from P. Firsch et al; it doesn't appear to be ready yet ("in preparation"). It should be an interesting "structure" in conjunction with this IBEX Ribbon & "dust arc" from the caption of Fig 2 page 3 of the paper kicking off this thread.celeste wrote:Solar,
Correct me if I'm wrong, but in Section 4,page 6 http://arxiv.org/pdf/1409.5428v1.pdf they do seem to be mapping the magnetic fields of a filament that are exactly as Donald Scott models? They see a filament,where the magnetic field is mapped by the green lines in their figure 2. In our original filament model, we had a filament flowing along a background magnetic field, but the field OF the filament wrapped around it. Which means if we have a filament flowing across our field of view, we should see stars through a magnetic field pointed upwards or downwards (depending which direction the field wraps around the filament).
In Scott's model, the magnetic field of the filament, changes direction with radius. When we see a star in a filament, we see it through the combined magnetic field of the filament and the background magnetic field. The backgrounf field is along the filament axis, and the field of the filament continuously changes direction with radius. So when we take "the weighted mean of the sine of those position angles", all we are left with is the background magnetic field direction,aligned with the filament axis.
At any rate, we are not seeing for stars in this filament, any significant component of magnetic field direction in one direction around the filament axis.
Even better, when we look a stars at varying distances, we see "the linear decrease of the polarization position angles with distance". Again, this is what is expected if we look radially across one of Dr. Scott's filaments (which we are if the filament itself stretches as "an elongated spatial grouping" across our field of view).
If anyone finds this, please let me know:
[22] P. C. Frisch, B.-G. Andersson, A. Berdyugin, V. Piirola, H. O. Funsten, A. M. Magalhaes, D. B.
Seriacopi, D. J. McComas, N. A. Schwadron, J. D. Slavin, and S. J. Wiktorowicz. Structure in the
Local Interstellar Magnetic Field: Identifying the component that extends to the heliosphere location.
ApJ, in preparation, 2014.
That "ribbon" is just insanely fun.... the ISMF traced by the center of the IBEX Ribbon arc [Funsten et al., 2013]. A high-
latitude dust arc is found in this direction.
It seems to suggest some sort of 'tethered by filamentary arc'' activity while simultaneously being embedded perpendicularly 'along the surface'/within the filament(s) of a conflagration between the 'bubble walls' (Loop 1 & Sco Cen).The IBEX ribbon ISMF is directed toward the North Polar Spur (Figs. 2, 3), so this po
larization bridge shows that both an ISMF and a dust stream extend from the solar location out to the interstellar density jump at 100pc in the North Polar Spur direction. The connection that we find between the ISMF direction at the heliosphere and the dominant local field direction from the polarization data [21; 22] then links the very local ISMF to the ISMF of Loop I.
Firsch has apparently identified what I subjectively interpret to be a roughly North/South polar filament within which the Sun resides. It would be interesting if the Sun's 'nose downward' + polar magnetic field orientation relative to the galactic plane coincides with the curvature of that Loop 1 'sheath' with the IBEX Ribbon 'tethering perpendicular via 'arc' to the Loop 1 'bubble wall' skimming its surface.In this case,the LIC cloud column density towards the star Sirius led to the conclusion that the Sun has entered the LIC cloud within the last 2,000-8,000 years, and that the Sun is about ~0.1 pc from the surface in the downwind direction (Frisch, 1994) When the upper limits of the Ca II column density towards Aql (Vallergra et al., 1993) and the LIC Fe II column density towards Cen (Lallement et al., 1995) are included, then we are forced to conclude that the Sun is located in a filament of difuse interstellar gas with a total thickness <0.7 pc. This filament is illustrated in Figure 4. - LISM STRUCTURE-FRAGMENTED SUPERBUBBLE SHELL?
There is just tons of good correlative stuff in the work of these folks.
"Our laws of force tend to be applied in the Newtonian sense in that for every action there is an equal reaction, and yet, in the real world, where many-body gravitational effects or electrodynamic actions prevail, we do not have every action paired with an equal reaction." — Harold Aspden
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Re: interstellar magnetic field, heliosphere, superbubble
Yes, A filament that stretches in the other direction, from the heliosphere, to the north galactic polar direction, and may have extended inwards to Earth's radius? http://cds.cern.ch/record/326878/files/9705231.pdf I don't know how this wasn't headline news at Thunderbolts. Was she out to prove Dave Talbott right?Solar wrote:
Firsch has apparently identified what I subjectively interpret to be a roughly North/South polar filament within which the Sun resides.In this case,the LIC cloud column density towards the star Sirius led to the conclusion that the Sun has entered the LIC cloud within the last 2,000-8,000 years, and that the Sun is about ~0.1 pc from the surface in the downwind direction (Frisch, 1994) When the upper limits of the Ca II column density towards Aql (Vallergra et al., 1993) and the LIC Fe II column density towards Cen (Lallement et al., 1995) are included, then we are forced to conclude that the Sun is located in a filament of difuse interstellar gas with a total thickness <0.7 pc. This filament is illustrated in Figure 4. - LISM STRUCTURE-FRAGMENTED SUPERBUBBLE SHELL?
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Re: interstellar magnetic field, heliosphere, superbubble
An article was saying that in non-optical emissions, a shock wave is near us and across the sky.
What medium do shock waves propagate through in space? Is there any way that a shock wave could exist in space?
What medium do shock waves propagate through in space? Is there any way that a shock wave could exist in space?
"It is dangerous to be right in matters where established men are wrong."
"Doubt is not an agreeable condition, but certainty is an absurd one."
"Those who can make you believe absurdities, can make you commit atrocities." Voltaire
"Doubt is not an agreeable condition, but certainty is an absurd one."
"Those who can make you believe absurdities, can make you commit atrocities." Voltaire
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