Observations detect frequent extreme superflares on the nova V2487 Oph

Tomasz Nowakowski is a writer for the website Phys.org.

The energy distribution of V2487 Oph. Credit: Shaefer et al.

Astronomers from LSU and College of Charleston have observed a nova called V2487 Oph. The source was identified as having superflares almost daily. The paper detailing the finding was published on arXiv.org.

A superflare is a burst of energy from a stellar surface. Studying flares in detail and detecting new flares is necessary to understand the origin of these events and the interaction between the magnetic fields and surfaces of stars.

A nova eruption is a cataclysmic variable consisting of a white dwarf and a companion star, and that have undergone more than one nova eruption. The classical novae has a timescale of up to 100,000 years.

V2487 Oph was first detected on June 15, 1998 as a nova with a peak magnitude of 9.5 mag. V2487 Oph is likely to recur any year now that it has been found that its best calculated recurrence time-scale is 18 years. The collected data suggests that this object is an RN.

A team of Astronomers led by LSU's Bradley E. Shaefer decided to conduct a photometric study of the source because it is a poorly studied nova. They used data from the McDonald Observatory.

We started a two-part study in 2002 because of our prior interest in RNe and the suggestions that V2487 Oph was a RN. We looked for photometric modulation tied to the period.

More information about the Discovery of Extreme, Roughly-Daily Superflares on the Recurrent Nova V2487 Oph.

The Science X Network will be launched in 2022.

The nova V2487 Oph was retrieved from the news websitephys.org on January 18, 2022.

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