I gather a bunch up each week and answer them here.The Guide to Space is a series of space and astronomy poddcasts by Fraser Cain, publisher of Universe TodayEpisode 678: Q&A 126: When Did Mars' Dynamo Shut Off?

The light curve near the star stays in the infared. As of yet, no one has ever witnessed this phenomena in action – but that may be about to change!According to study from a team of researchers from This binary star system, which is known as KIC 9832227, is one that Prof. Molnar and his colleagues – which includes students from the This led to questions about the nature of this star system – specifically, whether it was a pulsar or a binary pair. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization. The spectrum shows a red continuum, exhibits intermediate width H-alpha and Calcium features, and is similar to the spectra of other luminous red novae, e.g. Spiridonova, A.F. This event also resulted in a newly recognized category of star known as a “red transient” or Though astronomers such as Voituret Anthelme, Johannes Hevelius and Giovanni Cassini all noted the 1670 nova, the nebula and suspected progenitor star wasn’t successfully recovered until 1981. Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002. After conducting their own observations using the Calvin observatory, Prof. Molnar and his colleagues concluded that the star was a  contact binary – a class of binary star where the two stars are close enough to share an atmosphere. luminous red novae, pl.abbr. They found that the mass and isotopic composition of the resulting nebula was very uncharacteristic of a standard nova event.A best fit model for the 1670 event is a rare stellar merger, with two main sequence stars smashing together and exploding in a grand head on collision, leaving the resulting nebula we see today. Their red colour is distinctive. A luminous red nova (LRN) is an explosion in space.

2010). World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Often cited as the oldest and faintest observation of a nova, Hevelius referred to the 1670 apparition as ‘“We observed CK Vul with the hope to find some submillimeter emission, but were completely surprised by how intense the emission was and how abundant in molecules the gas surrounding CK Vul is,” Kaminski told Follow up observations of the region were also carried out by the Submillimeter Array (SMA) and the Effelsberg radio telescope in Germany. According to our best estimates, such events only occur in our galaxy (within globular clusters) once every 10,000 years. Milky Way, ArXiv, Cataclysmic variable star, White dwarf, Supernova Stellar collisions are an amazingly rare thing. Luminous red novae are different from normal novae. Authors: V.P. 2007

M85OT 2006-1 (Kulkarni et al. The abbreviation for Luminous Red Nova is LRN. The meaning of LRN abbreviation is "Luminous Red Nova" What does LRN mean?