Our universe is a scene of regular violent blasts. Nova blasts do not necessarily mean the most impressive. But the astronomer who has just observed it was not like others.
A supernova is an amazing explosion that some stars reach the end of their lives. A Nova is a bit different. This is also an explosion. But on a low -scale. One that is found on the surface of a white dwarf – understands, what is left of a dead star – when it has surrounded the quite content of a close fellow star to mobilize this trend. It takes its name from the fact that the ancients interpreted this trend in accordance with the appearance of a new star.
The other difference is that an explosion in Supernova is only once for a star. While a white dwarf can produce several LatestLatestBetween one year and decades at intervals of time. AstronomyAstronomy Then talk about the repeated Nova. And they have already witnessed something. Only a dozen in our sky. But more than our galaxy.
One of them is LMC 1968-12A. So much name was taken because it was discovered in 1968 in a large cloud of Mageline – or The big megalic cloudLMC -, one of our satellite galaxies. Of course it is made of a white dwarf. And a subGiant redGiant redA bigger star than ours RollyRolly. Astronomers have been witnessing its burst since 1990. About every four years.
Its last explosion took place in 2024. Researchers from the University of Kelly (UK) were waiting for it. So they were ready to record this trend with different devices. For the first time, they were able to observe the spectacular InfluentialInfluential An extraordinary frequent moving Nova.
One spectrum for another
In the journal Monthly notes of Royal Astronomical SocietyAstronomers say after the initial explosion, LightLight LMC68 quickly weakened. Flemingo 2 device TelescopeTelescope International Gemini South Observatory still received a powerful signalNuclearNuclear Injured SiliconSilicon Einsed in particular, Silicon Atoms snatched 9 of their 14 ElectronElectron ! To do this, in its incredible quantityEnergyEnergy In the form of radiation or violent collision.
I SpectrineSpectrine Using the Mageline Buddy telescope of the company, the nearest infrared light of the iconized silicon is 95 times stronger than the sun’s light on all its things. WavelengthsWavelengths! When Gemini witnessed the line several days later, the signal ended, butExtractionExtractionSilicon always dominated the spectrum. “It’s unprecedented”Nurilab (United States) assured astronomer Tom Gulley.
“And if this signal is shocking, it is also shocking for him that we have not found there.” Our newborn The milk methodThe milk methodReally, usually eliminate many signatures of highly passionate elements. Injured SulfurSulfurOf, PhosphorusPhosphorusOf, CalciumCalcium ToAluminumAluminum. But in the LMC 68 spectrum, researchers found nothing but ionized silicon.
An Nova feature of its environment
The assumption of astronomers is that the temperature gazgaz The extractor had to climb unusually high levels. Of the order of 30 million Degrees CelsiusDegrees Celsius . It is enough to make it the hottest Nova ever. And suggest a very violent explosion. Undoubtedly the result of the conditions under which Nova is ready.
Let’s remember that there are stars Mageline’s Grand CloudMageline’s Grand Cloud Offer A metacicitymetacicity Less than our sky. Understand that they are poor in heavy elements. However, heavy elements retain HeatHeatWhite dwarf surface. As a result of the blasts in Nova very fast. On the other hand, less heavy elements and more materials must be accumulated at the white dwarf surface before they flare up. So, eventually more violent explosion. In the case of LMC 68, the huge size of his partner increases this trend. Since the fired gas collided withEnvironmentEnvironmentThere is a huge trauma with the red subcourse that adds a bit more than the temperature. All this, astronomers made it theory. Now they have observational evidence to support their thoughts.
