Matches in SemOpenAlex for { <https://semopenalex.org/work/W2783029852> ?p ?o ?g. }
- W2783029852 endingPage "40" @default.
- W2783029852 startingPage "40" @default.
- W2783029852 abstract "Observations of heavy metal pollution in white dwarf stars indicate that metal-rich planetesimals are frequently scattered into star-grazing orbits, tidally disrupted, and accreted onto the white dwarf surface, offering direct insight into the dynamical evolution of post-main-sequence exoplanetary systems. Emission lines from the gaseous debris in the accretion disks of some of these systems show variations on timescales of decades, and have been interpreted as the general relativistic precession of a recently formed, elliptical disk. Here we present a comprehensive spectroscopic monitoring campaign of the calcium infrared triplet emission in one system, HE 1349–2305, which shows morphological emission profile variations suggestive of a precessing, asymmetric intensity pattern. The emission profiles are shown to vary on a timescale of one to two years, which is an order of magnitude shorter than what has been observed in other similar systems. We demonstrate that this timescale is likely incompatible with general relativistic precession, and consider alternative explanations for the rapid evolution, including the propagation of density waves within the gaseous debris. We conclude with recommendations for follow-up observations, and discuss how the rapid evolution of the gaseous debris in HE 1349–2305 could be leveraged to test theories of exoplanetary debris disk evolution around white dwarf stars." @default.
- W2783029852 created "2018-01-26" @default.
- W2783029852 creator A5011125777 @default.
- W2783029852 creator A5016087764 @default.
- W2783029852 creator A5038542597 @default.
- W2783029852 creator A5060349540 @default.
- W2783029852 creator A5075187480 @default.
- W2783029852 creator A5083403169 @default.
- W2783029852 date "2018-02-09" @default.
- W2783029852 modified "2023-10-16" @default.
- W2783029852 title "Rapid Evolution of the Gaseous Exoplanetary Debris around the White Dwarf Star HE 1349–2305" @default.
- W2783029852 cites W1800681137 @default.
- W2783029852 cites W1874246693 @default.
- W2783029852 cites W1875024744 @default.
- W2783029852 cites W1893853519 @default.
- W2783029852 cites W1977977269 @default.
- W2783029852 cites W2006590139 @default.
- W2783029852 cites W2008957594 @default.
- W2783029852 cites W2026667728 @default.
- W2783029852 cites W2028678583 @default.
- W2783029852 cites W2031632693 @default.
- W2783029852 cites W2043640602 @default.
- W2783029852 cites W2052548770 @default.
- W2783029852 cites W2076909773 @default.
- W2783029852 cites W2085461867 @default.
- W2783029852 cites W2088115480 @default.
- W2783029852 cites W2100399270 @default.
- W2783029852 cites W2109870426 @default.
- W2783029852 cites W2116902678 @default.
- W2783029852 cites W2118661683 @default.
- W2783029852 cites W2123074083 @default.
- W2783029852 cites W2125511191 @default.
- W2783029852 cites W2131843873 @default.
- W2783029852 cites W2135625048 @default.
- W2783029852 cites W2144841777 @default.
- W2783029852 cites W2148870695 @default.
- W2783029852 cites W2151574928 @default.
- W2783029852 cites W2167142260 @default.
- W2783029852 cites W2299087642 @default.
- W2783029852 cites W2340442190 @default.
- W2783029852 cites W2418482032 @default.
- W2783029852 cites W2484774469 @default.
- W2783029852 cites W2495894137 @default.
- W2783029852 cites W2525559626 @default.
- W2783029852 cites W2727551134 @default.
- W2783029852 cites W2964089368 @default.
- W2783029852 cites W3099520135 @default.
- W2783029852 cites W3099709122 @default.
- W2783029852 cites W3099993937 @default.
- W2783029852 cites W3100224081 @default.
- W2783029852 cites W3100241463 @default.
- W2783029852 cites W3100256922 @default.
- W2783029852 cites W3100691697 @default.
- W2783029852 cites W3100693937 @default.
- W2783029852 cites W3105814513 @default.
- W2783029852 cites W3106122278 @default.
- W2783029852 cites W3106190083 @default.
- W2783029852 cites W3106532927 @default.
- W2783029852 cites W4233436855 @default.
- W2783029852 cites W4292101537 @default.
- W2783029852 doi "https://doi.org/10.3847/1538-4357/aaa89b" @default.
- W2783029852 hasPublicationYear "2018" @default.
- W2783029852 type Work @default.
- W2783029852 sameAs 2783029852 @default.
- W2783029852 citedByCount "38" @default.
- W2783029852 countsByYear W27830298522018 @default.
- W2783029852 countsByYear W27830298522019 @default.
- W2783029852 countsByYear W27830298522020 @default.
- W2783029852 countsByYear W27830298522021 @default.
- W2783029852 countsByYear W27830298522022 @default.
- W2783029852 countsByYear W27830298522023 @default.
- W2783029852 crossrefType "journal-article" @default.
- W2783029852 hasAuthorship W2783029852A5011125777 @default.
- W2783029852 hasAuthorship W2783029852A5016087764 @default.
- W2783029852 hasAuthorship W2783029852A5038542597 @default.
- W2783029852 hasAuthorship W2783029852A5060349540 @default.
- W2783029852 hasAuthorship W2783029852A5075187480 @default.
- W2783029852 hasAuthorship W2783029852A5083403169 @default.
- W2783029852 hasBestOaLocation W27830298521 @default.
- W2783029852 hasConcept C100905312 @default.
- W2783029852 hasConcept C121332964 @default.
- W2783029852 hasConcept C1276947 @default.
- W2783029852 hasConcept C150846664 @default.
- W2783029852 hasConcept C153294291 @default.
- W2783029852 hasConcept C197445014 @default.
- W2783029852 hasConcept C2776023875 @default.
- W2783029852 hasConcept C2776401274 @default.
- W2783029852 hasConcept C44870925 @default.
- W2783029852 hasConcept C51244244 @default.
- W2783029852 hasConcept C73411000 @default.
- W2783029852 hasConcept C75876914 @default.
- W2783029852 hasConcept C81502235 @default.
- W2783029852 hasConcept C87355193 @default.
- W2783029852 hasConceptScore W2783029852C100905312 @default.
- W2783029852 hasConceptScore W2783029852C121332964 @default.
- W2783029852 hasConceptScore W2783029852C1276947 @default.
- W2783029852 hasConceptScore W2783029852C150846664 @default.
- W2783029852 hasConceptScore W2783029852C153294291 @default.