FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100985984> ?p ?o ?g. }

• W3100985984 abstract "Finite source effects can be important in observations of gravitational microlensing of stars. Near caustic crossings, for example, some parts of the source star will be more highly magnified than other parts. The spectrum of the star is then no longer the same as when it is unmagnified, and measurements of the atmospheric parameters and abundances will be affected. The accuracy of abundances measured from spectra taken during microlensing events has become important recently because of the use of highly magnified dwarf stars to probe abundance ratios and the abundance distribution in the Galactic bulge. In this paper, we investigate the effect of finite source effects on spectra by using magnification profiles motivated by two events to synthesize spectra for dwarfs between 5000K to 6200K at solar metallicity. We adopt the usual techniques for analyzing the microlensed dwarfs, namely, spectroscopic determination of temperature, gravity, and microturbulent velocity, relying on equivalent widths. We find that ignoring the finite source effects for the more extreme case results in errors in Teff < 45K, in log g of <0.1 dex and in microturbulent velocity of <0.1 km/s. In total, changes in equivalent widths lead to small changes in atmospheric parameters and changes in abundances of <0.06 dex, with changes in [FeI/H] of <0.03 dex. For the case with a larger source-lens separation, the error in [FeI/H] is <0.01 dex. This latter case represents the maximum effect seen in events whose lightcurves are consistent with a point-source lens, which includes the majority of microlensed bulge dwarfs published so far." @default.
• W3100985984 created "2020-11-23" @default.
• W3100985984 creator A5030349090 @default.
• W3100985984 creator A5034837206 @default.
• W3100985984 creator A5078606535 @default.
• W3100985984 date "2010-03-25" @default.
• W3100985984 modified "2023-10-09" @default.
• W3100985984 title "THE EFFECT OF DIFFERENTIAL LIMB MAGNIFICATION ON ABUNDANCE ANALYSIS OF MICROLENSED DWARF STARS" @default.
• W3100985984 cites W1965518235 @default.
• W3100985984 cites W1970331305 @default.
• W3100985984 cites W1986141102 @default.
• W3100985984 cites W1997888785 @default.
• W3100985984 cites W1999645097 @default.
• W3100985984 cites W2003236861 @default.
• W3100985984 cites W2005275270 @default.
• W3100985984 cites W2014464358 @default.
• W3100985984 cites W2021189588 @default.
• W3100985984 cites W2025783186 @default.
• W3100985984 cites W2034363510 @default.
• W3100985984 cites W2048670238 @default.
• W3100985984 cites W2056932217 @default.
• W3100985984 cites W2057729374 @default.
• W3100985984 cites W2075800316 @default.
• W3100985984 cites W2076652828 @default.
• W3100985984 cites W2087877919 @default.
• W3100985984 cites W2103156576 @default.
• W3100985984 cites W2103883050 @default.
• W3100985984 cites W2126846941 @default.
• W3100985984 cites W2131795696 @default.
• W3100985984 cites W2140751452 @default.
• W3100985984 cites W2152057237 @default.
• W3100985984 cites W2165966273 @default.
• W3100985984 cites W3098464408 @default.
• W3100985984 cites W3099465472 @default.
• W3100985984 cites W3100633137 @default.
• W3100985984 cites W3101367687 @default.
• W3100985984 cites W3102055070 @default.
• W3100985984 cites W3102632454 @default.
• W3100985984 cites W3106509342 @default.
• W3100985984 cites W4302394095 @default.
• W3100985984 doi "https://doi.org/10.1088/0004-637x/713/2/713" @default.
• W3100985984 hasPublicationYear "2010" @default.
• W3100985984 type Work @default.
• W3100985984 sameAs 3100985984 @default.
• W3100985984 citedByCount "7" @default.
• W3100985984 countsByYear W31009859842012 @default.
• W3100985984 countsByYear W31009859842013 @default.
• W3100985984 countsByYear W31009859842014 @default.
• W3100985984 countsByYear W31009859842016 @default.
• W3100985984 crossrefType "journal-article" @default.
• W3100985984 hasAuthorship W3100985984A5030349090 @default.
• W3100985984 hasAuthorship W3100985984A5034837206 @default.
• W3100985984 hasAuthorship W3100985984A5078606535 @default.
• W3100985984 hasBestOaLocation W31009859842 @default.
• W3100985984 hasConcept C10767094 @default.
• W3100985984 hasConcept C121332964 @default.
• W3100985984 hasConcept C125125069 @default.
• W3100985984 hasConcept C1276947 @default.
• W3100985984 hasConcept C150846664 @default.
• W3100985984 hasConcept C151130387 @default.
• W3100985984 hasConcept C169791425 @default.
• W3100985984 hasConcept C33024259 @default.
• W3100985984 hasConcept C44870925 @default.
• W3100985984 hasConcept C4839761 @default.
• W3100985984 hasConcept C505870484 @default.
• W3100985984 hasConcept C68498078 @default.
• W3100985984 hasConcept C77077793 @default.
• W3100985984 hasConcept C86803240 @default.
• W3100985984 hasConcept C96141758 @default.
• W3100985984 hasConcept C98444146 @default.
• W3100985984 hasConcept C99465377 @default.
• W3100985984 hasConceptScore W3100985984C10767094 @default.
• W3100985984 hasConceptScore W3100985984C121332964 @default.
• W3100985984 hasConceptScore W3100985984C125125069 @default.
• W3100985984 hasConceptScore W3100985984C1276947 @default.
• W3100985984 hasConceptScore W3100985984C150846664 @default.
• W3100985984 hasConceptScore W3100985984C151130387 @default.
• W3100985984 hasConceptScore W3100985984C169791425 @default.
• W3100985984 hasConceptScore W3100985984C33024259 @default.
• W3100985984 hasConceptScore W3100985984C44870925 @default.
• W3100985984 hasConceptScore W3100985984C4839761 @default.
• W3100985984 hasConceptScore W3100985984C505870484 @default.
• W3100985984 hasConceptScore W3100985984C68498078 @default.
• W3100985984 hasConceptScore W3100985984C77077793 @default.
• W3100985984 hasConceptScore W3100985984C86803240 @default.
• W3100985984 hasConceptScore W3100985984C96141758 @default.
• W3100985984 hasConceptScore W3100985984C98444146 @default.
• W3100985984 hasConceptScore W3100985984C99465377 @default.
• W3100985984 hasLocation W31009859841 @default.
• W3100985984 hasLocation W31009859842 @default.
• W3100985984 hasLocation W31009859843 @default.
• W3100985984 hasOpenAccess W3100985984 @default.
• W3100985984 hasPrimaryLocation W31009859841 @default.
• W3100985984 hasRelatedWork W1557485857 @default.
• W3100985984 hasRelatedWork W1584824207 @default.
• W3100985984 hasRelatedWork W1647730798 @default.
• W3100985984 hasRelatedWork W1872153203 @default.
• W3100985984 hasRelatedWork W2021875181 @default.
• W3100985984 hasRelatedWork W2163289804 @default.
• W3100985984 hasRelatedWork W2949177198 @default.

• next