Supernovas with large flux

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In summary: Reneke has discovered 5 supernovaehttps://en.wikipedia.org/wiki/Dave_RenekeIn summary, there is a supernova which is expected to be visible in daylight in the near future. It is unknown how often this happens, but it is likely that it happens on a regular basis.
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Sobi
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I have heard that some centuries ago a supernova happened which its light was visible in daytime.according to the observations will have a such supernova in the next few years?
 
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Sobi said:
I have heard that some centuries ago a supernova happened which its light was visible in daytime.according to the observations will have a such supernova in the next few years?
Who knows? There is no was to tell. Could happen tomorrow, could be in a billion years (although likely sooner than that). Since there have been several during recorded history it's likely to happen in an amount of time that is long by human standards (possibly hundreds of years) but very near zero in cosmological time scales.
 
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The last daytime one was the 1054AD one that produced the crab nebula
it was particularly noted by Chinese astronomers of the day ( prob many many others around the world)

yeah it could happen again any old time who knows when?
 
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Looking at typical galaxies, supernovas in one galaxy occur about somewhere between one every 5 years to one every 100 years.
A lot of them will not be visible to us though if there is dust in the line of sight, which often is the case for our own galaxy.
 
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There is no way that there is a supernova every 5 years on average in our galaxy, or even typical galaxies. We have been monitoring about 1/6 of our galaxy visually since 1605 and seen zero. We have been monitoring M31 and M33 on a similar timescale, and since one in M31 - in 1885 - and zero in M33. We have been monitoring the entire galaxy in neutrinos for 30 years and have seen zero core-collapse supernovae. It is difficult to support a rate of once per 50 years: once per 5 is unsupportable.
 
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1. What is a supernova with large flux?

A supernova with large flux refers to a type of supernova explosion that releases an extremely high amount of energy and radiation. This energy is emitted in the form of electromagnetic radiation, such as visible light, X-rays, and gamma rays.

2. How are supernovas with large flux different from other types of supernovas?

Supernovas with large flux are distinguished from other types of supernovas by their incredibly high luminosity and energy output. They also have different origins and mechanisms of explosion compared to other supernovas.

3. What causes a supernova with large flux to occur?

There are two main types of supernovas with large flux: Type Ia and Type II. Type Ia supernovas are caused by the thermonuclear explosion of a white dwarf star, while Type II supernovas are caused by the collapse of a massive star's core. Both types of supernovas involve the release of a massive amount of energy and radiation.

4. How do scientists study supernovas with large flux?

Scientists use a variety of telescopes and instruments to study supernovas with large flux. These include optical telescopes, X-ray telescopes, and gamma-ray telescopes. They also use computer simulations and models to better understand the physics and mechanics of these powerful explosions.

5. What can we learn from studying supernovas with large flux?

Studying supernovas with large flux can provide insights into the processes that occur during the death of stars, as well as the formation of new stars and galaxies. It can also help us understand the chemical elements and matter that make up our universe, as supernovas are responsible for dispersing these elements into space.

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