Hyades white dwarfs - evidence for planetary system around LP 475-242?

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Hyades white dwarfs - evidence for planetary system around LP 475-242?

Post by Lazarus on 27th April 2013, 4:54 am

The Hyades Cluster: Identification of a Planetary System and Escaping White Dwarfs
http://arxiv.org/abs/1304.2638

Calcium detected in the photosphere of LP 475-242, which may indicate that it has a planetary system.
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Re: Hyades white dwarfs - evidence for planetary system around LP 475-242?

Post by Edasich on 27th April 2013, 10:06 am

This title seems something tricky just to catch attention. Rolling Eyes

Moreover it is not the first case of a white dwarf whose spectrum could hint there is planetary material or even some kind of planetary object somewhere orbiting the stellar remnant, though actually not detected.
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Re: Hyades white dwarfs - evidence for planetary system around LP 475-242?

Post by Lazarus on 10th May 2013, 6:14 am

Now with news release
http://www.space.com/21046-polluted-dead-stars-hubble-telescope.html

Main point seems to be to do with the cluster environment: still not many planets known in open clusters (or globulars for that matter).
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Re: Hyades white dwarfs - evidence for planetary system around LP 475-242?

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