Recent content by Nathan Warford

Because I don't know how to precisely measure flux with the tools I have at my disposal. I was not observant enough to notice that. I saw the text "Hercules A" and so I ignored it. I think that has the information that I need. Thank you for pointing it out to me. You have been very helpful.

Finding pixel values is not difficult. I can do that easily enough in Photoshop. Once I have the half-light radius in relation to the galaxy, then I can perform pixel measurements and compare it to the FOV legend to find an angular radius. What I don't know how to do is calculate the half-light...

I have found plenty of information about the radio source Hercules A. Its large radio jets are 1.5 million light years long from end to end, the supermassive black hole that produces Hercules A is 3 to 4 billion solar masses, and the black hole exists in the center of galaxy 3C 348. However, I...

Thank you for your input. You have been very helpful. Is that so? I thought that only happened at very high temperatures and/or pressures, like in a particle collider or the core of a neutron star.

Does this mean that the table is more accurate than the r=1.2 fm×A⅓ equation? I guess the reason I have a hard time understanding is because most sources say that the neutron and proton have roughly the same radius. Wikipedia says, The neutron has a mean square radius of about 0.8×10−15 m, or...

I have seen numerous sources for radii of atomic nuclii of various elements. One of the most common is the simple equation r=1.2 fm×A⅓, which makes sense if the nuclear density is constant for all elements and all isotopes. However, I've also found a table of measured nuclear charge radii that...

It sounds like a quantum theory of gravity would help to describe the Planck particle's properties, as opposed to the of the Planck particle's properties leading to a quantum theory of gravity. That would lead me to think that calculating the properties of a Planck particle is more of a...

Taken from the Wikipedia page: Is there something significant about the physics of the Planck Particle or its properties? If so, then what is the significance? If there's nothing especially significant about the Planck Particle, then you can just say "No" and I will consider the matter closed...

You're right. I should have chosen my words differently. I apologize. The thing is that there can also be interactions involving particles that don't have electric charge. A photon doesn't have an electric charge, but it can still be absorbed or scattered by matter particles like electrons. An...

Still, I would like to keep this discussion in the realm of particle physics. If gravity turns out to actually be important to the discussion, maybe the thread should be moved to the Beyond the Standard Model forum? Don't assume to know what I'm talking about. I'm asking about all types of...

Gravity doesn't really apply because elementary particles are so light that gravity has a negligible affect on them. Gravity is better explained by General Relativity anyway. As for electrostatics, the way I understand the phenomenon is that charged particles like electrons exchange virtual...

This is a topic that I have tried researching and I have not been able to find any meaningful information about it. The standard model of particle physics describes particles as point-like objects with no spatial extent. What I can't wrap my head around is how true point particles can...

I came across an article on arXiv today concerning the nature of the electron. <link removed> From what I gathered by skimming the article, the author posits that an electron's diameter is effected by its velocity. The more energy the electron has, the smaller its diameter becomes. On page 32...

We're starting to get into some complex mathematics that I'm not entirely familiar with (my math training only goes up to freshman-level calculus). I was hoping that someone knew of some theoretical models (highly speculative) that would predict more constrained dimensions of the various...

I'm not familiar with that terminology. Could you explain it to me?