polar

type of cataclysmic variable binary star system

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In astronomy, a polar is a highly magnetic type of cataclysmic variable (CV) binary star system, originally known as an AM Herculis star after the prototype member AM Herculis. Like other CVs, polars contain two stars: an accreting white dwarf (WD), and a low-mass donor star which is transferring mass to the WD as a result of the WD's gravitational pull, overflowing its Roche lobe. Polars are distinguished from other CVs by the presence of a very strong magnetic field in the WD. Typical magnetic field strengths of polar systems are 10 million to 80 million gauss. The WD in the polar AN Ursae Majoris has the strongest known magnetic field among cataclysmic variables, with a field strength of 230 million gauss.

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polar

type of cataclysmic variable binary star system

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Not who you're looking for? Others named polar: academic journal · decommissioned NASA geomagnetic research satellite · 2019 movie directed by Jonas Åkerlund · album by The High Water Marks

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About polar

In astronomy, a polar is a highly magnetic type of cataclysmic variable (CV) binary star system, originally known as an AM Herculis star after the prototype member AM Herculis. Like other CVs, polars contain two stars: an accreting white dwarf (WD), and a low-mass donor star which is transferring mass to the WD as a result of the WD's gravitational pull, overflowing its Roche lobe. Polars are distinguished from other CVs by the presence of a very strong magnetic field in the WD. Typical magnetic field strengths of polar systems are 10 million to 80 million gauss. The WD in the polar AN Ursae Majoris has the strongest known magnetic field among cataclysmic variables, with a field strength of 230 million gauss.

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Not who you're looking for? Others named polar: academic journal · decommissioned NASA geomagnetic research satellite · 2019 movie directed by Jonas Åkerlund · album by The High Water Marks

polar across IJR

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Latest polar news and discussion

Latest polar news and discussion

polar across IJR

polar across IJR