Are MECOs the Solution to Galactic Black Hole Mysteries?

  • Thread starter Nereid
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In summary, the conversation discusses a paper on the existence of intrinsically magnetic galactic black hole candidates and its consistency with a new class of solutions of the Einstein field equations of General Relativity. The conversation also touches on the potential errors and peer-review process of the paper, as well as previous preprints and publications related to the MECO model of black holes.
  • #1
Nereid
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http://adsabs.harvard.edu/abs/2006astro.ph..2453R".

From the abstract:
We show that the existence of intrinsically magnetic GBHC [galactic black hole candidates] is consistent with a new class of solutions of the Einstein field equations of General Relativity.
I suppose I should start a thread in the Relativity section, re how well the "new class of solutions of the Einstein field equations of General Relativity" holds water; here I'm interested in looking at how well the observational data matches MECO models.

Thoughts?
 
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  • #2
I've posted a brief comment on this paper in the GR forum. Basically, I'm not particuarly impressed with it, there appears to be some elementary errors. Unfortunately I cannot comment on the astronomical observation aspects.

Do you know if the journal this was published in was peer-reviewed?
 
  • #3
http://adsabs.harvard.edu/abs/2001APS..APRJ14014R" gives: "American Physical Society, April Meeting, April 28 - May 1, 2001 Washington, DC Bulletin of the American Physical Society, Vol. 46, No. 2, abstract #J14.014" (the title is slightly different).

or, still from http://adsabs.harvard.edu/abs/2004APS..APR.B8008L": "American Physical Society, April Meeting, 2004, May 1-4, 2004, Denver, Colorado April 2004, MEETING ID: APR04, abstract #B8.008" (the title is the same, but the abstract different).

There are, apparently, two preprints http://arxiv.org/abs/astro-ph/0307438" .

[Edit: from http://arxiv.org/PS_cache/astro-ph/pdf/0505/0505518.pdf" (p2 Introduction):
Finally a full discussion of the entire observational and theoretical program for the ”Magnetospheric Eternally Collapsing Object (MECO) model of Galactic Black Hole Candidates and Active Galactic Nuclei” was published (Robertson and Leiter 2005) as chapter one in the book ”New Directions in Black Hole Research” recently published by Nova Science Publishers.
Looks like they're having some difficulty getting published, e.g. in ApJ.]
 
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1. What is MECO?

MECO stands for Main Engine Cut-Off, which is a critical stage during the launch of a rocket or spacecraft. It is the point at which the main rocket engine shuts down and the spacecraft separates from the rocket.

2. What does it mean for MECO to have "legs"?

The term "legs" in regards to MECO refers to the ability of the spacecraft or rocket to continue its journey after the main engine shuts down. This often includes the use of secondary engines or other propulsion systems.

3. How does MECO impact the success of a launch?

MECO is a crucial stage in a launch as it signals the separation of the spacecraft from the rocket and the beginning of its journey. If MECO does not occur as planned, it can result in a failed launch.

4. Can you explain the process of MECO in more detail?

During a launch, the rocket's main engine provides the majority of the thrust needed to lift the spacecraft off the ground. As the rocket reaches a certain altitude and velocity, the main engine is shut down, and the spacecraft separates from the rocket. This allows the spacecraft to continue its journey using its own propulsion systems.

5. Are there any risks associated with MECO?

As with any stage of a launch, there are risks associated with MECO. If the main engine does not shut down as planned, it can result in a failed launch or the spacecraft being unable to reach its intended destination. However, extensive testing and safety measures are taken to ensure the success of MECO during a launch.

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