probing
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Probing MACHOs Toward the Galactic Bulge
If the massive compact halo object (MACHO) fraction of the Galactic dark halo is f ~ 20% as suggested by some microlensing experiments, then about 1.2% of lensing events toward the Galactic bulge are due to MACHOs. For the 40% of these that lie nearby (D_l
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aProbingMACHOsTowardtheGalacticBulgeAndrewGouldDepartmentofAstronomy,TheOhioStateUniversity,140W.18thAve.,Columbus,OH43210gould@astronomy.ohio-state.eduABSTRACTIfthemassivecompacthaloobject(MACHO)fractionoftheGalacticdarkhaloisf~20%assuggestedby
Probing MACHOs Toward the Galactic Bulge
If the massive compact halo object (MACHO) fraction of the Galactic dark halo is f ~ 20% as suggested by some microlensing experiments, then about 1.2% of lensing events toward the Galactic bulge are due to MACHOs. For the 40% of these that lie nearby (D_l
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aProbingMACHOsTowardtheGalacticBulgeAndrewGouldDepartmentofAstronomy,TheOhioStateUniversity,140W.18thAve.,Columbus,OH43210gould@astronomy.ohio-state.eduABSTRACTIfthemassivecompacthaloobject(MACHO)fractionoftheGalacticdarkhaloisf~20%assuggestedby
Pulsating sdB Stars A New Approach to Probing their Interiors
Horizontal branch stars should show significant differential rotation with depth. Models that assume systematic angular momentum exchange in the convective envelope and local conservation of angular momentum in the core produce HB models that preserve a ra
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aPulsatingsdBStars:ANewApproachtoProbingtheirInteriorsStevenD.KawalerandShelbiR.HostlerDept.ofPhysicsandAstronomy,IowaStateUniversity,Ames,IA50011USAAbstract.Horizontalbranchstarsshouldshowsigni cantdi erentialrotationwithdepth.Modelsthatassumesy