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A 12 minute Orbital Period Detached White Dwarf Eclipsing Binary
Orbital Period Detached Dwarf Eclipsing Binary
2011/7/12
We have discovered a detached pair of white dwarfs (WDs) with a 12.75 min orbital period and a 1,315 km/s radial velocity amplitude. We measure the full orbital parameters of the system using its ligh...
An aluminum/calcium-rich, iron-poor, white dwarf star: evidence for an extrasolar planetary lithosphere?
calcium-rich iron-poor evidence extrasolar planetary lithosphere
2011/7/12
The presence of elements heavier than helium in white dwarf atmospheres is often a signpost for the existence of rocky objects that currently or previously orbited these stars. We have measured the ab...
Multifrequency study of the blue compact Dwarf Haro 2：NIR imaging and optical spectroscopy
blue compact Dwarf Haro 2 NIR imaging optical spectroscopy
2009/6/30
Multifrequency study of the blue compact Dwarf Haro 2：NIR imaging and optical spectroscopy。