The closest astronomical object to a black hole.

According to this research, the closest to a black hole would be a star in Ana Blanca and this is very interesting because it will help us explain a question that intrigues astronomers and that is what happens in the event horizon of a black hole, event horizon or event horizon, one of the great mysteries of the universe. The mysterious thing is what happens there, that is the last frontier of known physics, If you pass the event horizon we no longer know what is happening, it is already the interior of a black hole, it is where the laws no longer work and what we know about nature and the universe, what exists before the event horizon, Well, very strange things also happen, but we have a slight idea, we can still do some calculations and we have some signals such as, for example, this White dwarf star. Which according to current research could be the closest known object to a known object because I already said that in that environment on that edge very strange things happen.

This discovery was made thanks to the XMM Newton telescope of the European space agency, which has published the image shown, it is an illustration, the white dot there that is losing mass would be that White Dwarf star, the results show it is a white dwarf star that is similar to the sun, when it dies it ends up concentrating the core of its mass in a White dwarf, the sun for example, when it dies it will end up expelling its outer layers, it is not massive enough to explode, but it will end up transforming into a Red giant and expel its outer layers and its core will transform into a White dwarf. This supermassive black hole from a nearby galaxy is not in our galaxy, it has the nice name of 1ES 1927+654, from now on simply supermassive black hole, it has been known since 2011, back then it was a black hole normal supermassive, calm like many others in the universe, but in 2018 things changed and the black hole suffered from the environment of that edge of the black hole a large eruption arose that seemed to disturb its environment because the x-ray corona that it normally had disappeared, little by little the corona returned and at the beginning of 2021 it seemed that this black hole had returned to normal, however, in July 2022 this XMM Newton telescope began to observe that the emission of x-rays varied at levels of around 10% on time scales of 400 and 1000 seconds, which in practice meant that something strange was happening around this black hole.

These variations could indicate that there was a massive star-like object that was embedded in the accretion disk and was rapidly orbiting the black hole on its way to eventually being swallowed up as the object approached the black hole. It is picking up more and more speed and the time it takes to orbit the supermassive black hole is decreasing and the frequency of the variations is also increasing. In short, the calculations showed that this object was probably a white dwarf with a mass of around 0.1 that of the Sun and that it was traveling at an astonishing speed, completing an orbit around this central monster, covering a distance of 100 million. of kilometers every 18 minutes that is approximately traveling at 92,592 km per second, that is a little less than a third of the speed of light.

If we had a ship that traveled at the same speed we could reach the nearest star in about 13 and a half years, researchers say that in the 2030s when the LISA observatory is put into orbit around the sun at a Lagrange point, it will Being the largest observatory that humanity has ever created, it will be ready in the mid-1930s and will be composed of three spacecraft or three probes, each one two and a half million kilometers apart and connected by means of a laser, in this way they will form a triangle capable of detecting minute variations in gravitational waves and with this it will be able to detect what is happening, for example, in this black hole and in other objects in the Cosmos that produce gravitational waves, produce palpitations and vibrations of the fabric of space time. Right now we cannot detect because our observatories used are very small compared to LISA, keep in mind that the current gravitational wave observatories follow the same system, they are long tunnels 2 or 3 km long connected by laser to measure tiny distances the size of atomic nuclei, but of course this one is going to have 2 and a half million on each side.