Two white dwarf stars orbiting each other every five minutes, confirmed

Brad Guth wrote:
Plus attracted to one another by their magnetic forces (especially if
poles flip) which can be rather considerable.


Magnetic attraction is balanced out by magnetic repulsion. The only
thing magnetism will serve to do is tidally lock them into position quicker.

Gravity is the only force at work here.

Yousuf Khan

On Mar 14, 6:32*am, Yousuf Khan wrote:
Brad Guth wrote:
Plus attracted to one another by their magnetic forces (especially if
poles flip) which can be rather considerable.

Magnetic attraction is balanced out by magnetic repulsion. The only
thing magnetism will serve to do is tidally lock them into position quicker.

Gravity is the only force at work here.

* * * * Yousuf Khan

Gravity is an extremely weak force.

Those white dwarfs have a lot going for them, except having too few of
those repulsive elections to keep themselves apart.

One pole flip and it's magnetic attraction of that pair of perhaps 1e6
gauss stars merging very quickly.

~ BG

Brad Guth wrote:
Gravity is an extremely weak force.

Those white dwarfs have a lot going for them, except having too few of
those repulsive elections to keep themselves apart.

One pole flip and it's magnetic attraction of that pair of perhaps 1e6
gauss stars merging very quickly.


Let's not forget how magnetic attraction and repulsion actually work:
the poles actually have to point towards each other. The poles in stars
are usually aligned parallel to each other. There is no net attraction
or repulsion there. It wouldn't matter if one star's pole is north and
the other star's pole is south, when they are parallel. There are
localized attractions and repulsions which would serve to sync up the
two stars' rotations with each other, but once synchronized, nothing
further happens.

Yousuf Khan

On Mar 15, 3:32*pm, Yousuf Khan wrote:
Brad Guth wrote:
Gravity is an extremely weak force.

Those white dwarfs have a lot going for them, except having too few of
those repulsive elections to keep themselves apart.

One pole flip and it's magnetic attraction of that pair of perhaps 1e6
gauss stars merging very quickly.

Let's not forget how magnetic attraction and repulsion actually work:
the poles actually have to point towards each other. The poles in stars
are usually aligned parallel to each other. There is no net attraction
or repulsion there. It wouldn't matter if one star's pole is north and
the other star's pole is south, when they are parallel. There are
localized attractions and repulsions which would serve to sync up the
two stars' rotations with each other, but once synchronized, nothing
further happens.

* * * * Yousuf Khan

You need to play with magnets before you assume anything, especially
about white dwarf stars that could represent 1e6 gauss each.

Try to orbit powerful magnets in open space as a simulation, such as
within the zero delta V of our moon-Earth L1(Selene L1). Whatever you
do, don't place yourself in the center.

The natural order of magnetic items is to join up or merge together
and stay that way.

~ BG

On Mar 9, 3:32*pm, Yousuf Khan wrote:
These two white dwarfs are so close together, that they might fall into
each other some day. This would be an ideal test to see if two white
dwarfs falling into each other produce a Type Ia supernova, leaving
nothing behind. Or if they simply turn into a neutron star.

* * * * Yousuf Khan

***
SPACE.com -- Fastest Orbiting Stars Circle Each Other in Mere Minutes
"After a decade of mystery, astronomers have now shown that a pair of
white dwarf stars spin around each other in just 5.4 minutes, making
them the fastest-orbiting and tightest binary star system ever found,
the researchers claim.

The record-setting stellar duo, known as HM Cancri or RX J0806.3+1527,
offer challenges in explaining how such a system might form. The
super-quick stars may also present a great future test-bed for detecting
gravitational waves, which are elusive ripples in space-time."http://www.space.com/scienceastronomy/fastest-orbiting-stars-100309.html

Apparently if these two eventually merge, their combined mass isn't
going to trigger a supernova, instead just a normal stellar explosion
of 0.01 c or less.

Any ideas as to their individual gauss?

~ BG

~ BG

On Mar 9, 3:32*pm, Yousuf Khan wrote:
These two white dwarfs are so close together, that they might fall into
each other some day. This would be an ideal test to see if two white
dwarfs falling into each other produce a Type Ia supernova, leaving
nothing behind. Or if they simply turn into a neutron star.

* * * * Yousuf Khan

***
SPACE.com -- Fastest Orbiting Stars Circle Each Other in Mere Minutes
"After a decade of mystery, astronomers have now shown that a pair of
white dwarf stars spin around each other in just 5.4 minutes, making
them the fastest-orbiting and tightest binary star system ever found,
the researchers claim.

The record-setting stellar duo, known as HM Cancri or RX J0806.3+1527,
offer challenges in explaining how such a system might form. The
super-quick stars may also present a great future test-bed for detecting
gravitational waves, which are elusive ripples in space-time."http://www.space.com/scienceastronomy/fastest-orbiting-stars-100309.html

Apparently white dwarfs can go with 2+ solar masses, so perhaps most
everything we know about white dwarfs is at risk.

These two little dwarfs magnetically combining would hardly make a
bang, much less a supernova.

~ BG

Brad Guth wrote:
Apparently white dwarfs can go with 2+ solar masses, so perhaps most
everything we know about white dwarfs is at risk.

These two little dwarfs magnetically combining would hardly make a
bang, much less a supernova.


They're talking about the combined mass of the two white dwarfs together
as about 2+ Msun, not either WD individually. Of course the maximum any
single WD can go upto is just slightly less than 1.4 Msun (i.e.
Chandrasekhar Limit).

Yousuf Khan