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D. R. Flower

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For papers that merit urgent publication, MNRAS Letters, the online section of Monthly Notices of the Royal Astronomical Society, publishes short, topical and significant research in all fields of astronomy …

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Rosetta at 67P

Special Issue: ESLAB 50 Symposium

Read the free Special Issue on the ESLAB 50 Symposium – spacecraft at comets from 1P/Halley to 67P/Churyumov-Gerasimenko online now. 

Image credit: ESA/ATG medialab; Comet image: ESA/Rosetta/NavCam 

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highly cited articles

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Read a free collection of highly-cited articles published in 2015 showcasing the top-quality research from MNRAS.

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Article-level metrics are available for all MNRAS articles. Articles with the highest Altmetric scores in 2015 are currently freely available online.

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All Zooniverse papers published in MNRAS are free to read online to ensure that all of those contributing to them can read the official published version of the article.

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MNRAS on the OUPblog

Heavy-metal subdwarf

An international team of astronomers has discovered a small, very blue helium-rich, and hot star called UVO 0825+15, which has a surface extremely rich in lead and other heavy metals. Only the fourth 'heavy-metal subdwarf' discovered, and the second to be variable, the new star raises major questions about how these stars form and work.

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A possible cause of the Big Bang and current acceleration of the Universe

The Big Bang theory predicts that there was a powerful repulsive force at the beginning of the expanding of the Universe. A common hypothesis of the cause of the Big Bang is a short-term repulsive field, the so-called “inflaton".

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Adding a new dimension to the early chemistry of the solar system

What was our solar system composed of at the beginning of its formation? Using sophisticated computer simulations, researchers from France and Australia have obtained new insights into the chemical composition of the dust grains that formed in the early solar system which went on to form the building blocks of the terrestrial planets.

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An efficient way to find monsters with two faces

Quasars are distant galactic nuclei generating spectacular amounts of energy by matter accretion onto their central supermassive black holes. The precise geometry and origin of this huge activity are still largely unknown, and direct spatial resolution of the emitting regions from such distant monsters is not currently possible. 

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RAS at 200

RAS @200

Find out more about the Royal Astronomical Society’s bicentennial anniversary.

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