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v838 monocerotis

The simulations also show that the inflated envelope would have come almost entirely from the smaller component. However, in early March the star started to brighten again, especially in infrared wavelengths. The outburst of V Monocerotis may be a nova eruption after all, albeit a very unusual one. Gliese Gliese The star’s envelope would then warm up enough to trigger deuterium fusion, which would lead to rapid expansion. Originally believed to be a typical nova eruption, it was then identified as something completely different.

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The eruption initially emitted at shorter wavelengths i.

V838 Monocerotis

This model is strengthened by the apparent youth monnocerotis the system and the fact that multiple stellar systems may be unstable. The light that travels directly from the object arrives first.

V Monocerotis may be a post- asymptotic giant branch star, on the verge of its death. Therefore, the star became extremely cool and deep red. The authors of this model calculate that every year about c838. Another possibility is that V Monocerotis may have swallowed its giant planets. According to some evidence, V Monocerotis may be a very massive monicerotis.


In addition, the merger model explains the multiple peaks in the light curve observed during the outburst.

However, several pieces of evidence support the argument that the dust is interstellar rather than centered on V Monocerotis. V Monocerotis reached maximum visual magnitude of 6. The remnant is evolving rapidly.

V Monocerotis revisited: Space phenomenon imitates art | ESA/Hubble

This theory may monoceerotis explain the apparent dust shells around the star. If one of the planets entered into the atmosphere of the star, the stellar atmosphere would have begun slowing down the planet. This page was last edited on 11 Februaryat Yet another brightening in monocertois occurred in early April. The light curve produced by the eruption is unlike anything previously seen. By using this site, you agree to the Terms of Use and Privacy Policy.

A dying star that has lost its outer envelopes would be appropriately hot, but the evidence points to a young star instead. All articles with unsourced statements Articles with unsourced statements from November Commons category link is on Wikidata Articles containing video clips. Computer simulations have shown the merger model to be plausible. If that is the case, V Monocerotis would be the first known L-type supergiant.

Originally believed to be a typical nova eruption, it was then identified as something completely different. Views Read Edit View history.


V838 Monocerotis revisited: Space phenomenon imitates art

However, this is very unlikely considering that the system includes a B-type star, and stars of this type are young and massive. In other projects Wikimedia Commons. Very massive stars survive multiple such events; however, they experience heavy mass loss about half of the original mass is lost while in the main sequence before settling as extremely hot Wolf-Rayet stars.

There has not been enough time for a possible white dwarf to cool and accrete enough material to cause the eruption. It appears that the star was considerably more massive and luminous than the Sun. On January 6,an unknown star was seen to brighten in the constellation Monocerosthe Unicorn. The star probably has a mass of from 5 to 10 times solar.

Binary stars Monoceros constellation Peculiar variables L-type supergiants M-type supergiants Luminous red novae Objects with variable star designations. From Wikipedia, the free encyclopedia. Ina red star was detected erupting in the Andromeda Galaxy. Retrieved 3 October The rings appear to travel faster than the speed of lightbut in fact they do not.

Retrieved 10 August