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View Full Version : Smurfs in the Universe? A nearby Blue Dwarf



trinitree88
2009-Dec-22, 08:43 PM
The authors find a relatively nearby dwarf star with an unusually "blue" spectrum for it's type, suggesting that it has optical effects from surrounding grains of dust. SEE:http://arxiv.org/PS_cache/arxiv/pdf/0912/0912.3796v1.pdf



pete

EricFD
2009-Dec-22, 09:13 PM
That explanation makes sense. It's not uncommon for some dwarf stars, including red dwarfs, to have an unusual spectrum for the particular spectral type because of an outer layer of material surrounding it. The dust certainly would scatter the blue light much the same way our atmosphere does. This isn't the first time I have read about this phenomenon.

It is an interesting paper, Pete. Thanks for posting. :)

Eric

trinitree88
2009-Dec-24, 06:04 PM
That explanation makes sense. It's not uncommon for some dwarf stars, including red dwarfs, to have an unusual spectrum for the particular spectral type because of an outer layer of material surrounding it. The dust certainly would scatter the blue light much the same way our atmosphere does. This isn't the first time I have read about this phenomenon.

It is an interesting paper, Pete. Thanks for posting. :)

Eric

EricFD. You're welcome and have a nice holiday break. My shopping's done. pete