FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1688897418> ?p ?o ?g. }

• W1688897418 abstract "We present a new, simple method for analyzing gapped time series that is particularly suited to probe the X-ray power spectra of active galactic nuclei (AGNs). The method is applied to a 4 day observation of the Seyfert 1 galaxy MCG -6-30-15 with ASCA (Advanced Satellite for Cosmology and Astrophysics). MCG -6-30-15 is well known for rapid, large-amplitude X-ray variability and was one of the first AGNs to show evidence of relativistic effects in its Fe-K line profile. In this source, our method probes the power spectrum in the range 10-3-5×10−2 Hz, thus extending the high-frequency coverage by a factor of over 50 compared to previous studies. The ASCA data rule out a cessation of variability up to 1.6×10−2 Hz at greater than 90% confidence. The power-law index of the power spectrum in this range is consistent with ~-1.4. At 2.1×10−2 Hz we can place an upper limit of 7% on the intrinsic fluctuations of the source luminosity at greater than 99% confidence. Above this frequency Poisson noise becomes dominant, but we can place an upper limit of 10% on intrinsic fluctuations up to 5×10−2 Hz at 98.9% confidence. The data argue against orbital modulation as the origin of the variability since it would imply upper limits on the mass of the putative black hole of less than 5×105 M☉, and therefore super-Eddington luminosities." @default.
• W1688897418 created "2016-06-24" @default.
• W1688897418 creator A5000614790 @default.
• W1688897418 creator A5047808605 @default.
• W1688897418 creator A5067527869 @default.
• W1688897418 creator A5069440171 @default.
• W1688897418 creator A5086826935 @default.
• W1688897418 date "1997-11-20" @default.
• W1688897418 modified "2023-09-23" @default.
• W1688897418 title "A Simple New Method for Analyzing Gapped Time Series: Search for a High-frequency Cutoff in the X-Ray Power Spectrum of the Seyfert Galaxy MCG −6−30−15" @default.
• W1688897418 cites W1963664566 @default.
• W1688897418 cites W1975417171 @default.
• W1688897418 cites W1989252852 @default.
• W1688897418 cites W1995741857 @default.
• W1688897418 cites W2019129041 @default.
• W1688897418 cites W2022115999 @default.
• W1688897418 cites W2035385867 @default.
• W1688897418 cites W2037978621 @default.
• W1688897418 cites W2063242388 @default.
• W1688897418 cites W2071049384 @default.
• W1688897418 cites W2081713997 @default.
• W1688897418 cites W2092576233 @default.
• W1688897418 cites W3101649552 @default.
• W1688897418 doi "https://doi.org/10.1086/311014" @default.
• W1688897418 hasPublicationYear "1997" @default.
• W1688897418 type Work @default.
• W1688897418 sameAs 1688897418 @default.
• W1688897418 citedByCount "24" @default.
• W1688897418 countsByYear W16888974182018 @default.
• W1688897418 crossrefType "journal-article" @default.
• W1688897418 hasAuthorship W1688897418A5000614790 @default.
• W1688897418 hasAuthorship W1688897418A5047808605 @default.
• W1688897418 hasAuthorship W1688897418A5067527869 @default.
• W1688897418 hasAuthorship W1688897418A5069440171 @default.
• W1688897418 hasAuthorship W1688897418A5086826935 @default.
• W1688897418 hasBestOaLocation W16888974181 @default.
• W1688897418 hasConcept C104954878 @default.
• W1688897418 hasConcept C121332964 @default.
• W1688897418 hasConcept C12287442 @default.
• W1688897418 hasConcept C1276947 @default.
• W1688897418 hasConcept C143724316 @default.
• W1688897418 hasConcept C151730666 @default.
• W1688897418 hasConcept C159985019 @default.
• W1688897418 hasConcept C180205008 @default.
• W1688897418 hasConcept C192562407 @default.
• W1688897418 hasConcept C204323151 @default.
• W1688897418 hasConcept C26405456 @default.
• W1688897418 hasConcept C2776401274 @default.
• W1688897418 hasConcept C2778217198 @default.
• W1688897418 hasConcept C31258907 @default.
• W1688897418 hasConcept C41008148 @default.
• W1688897418 hasConcept C43481613 @default.
• W1688897418 hasConcept C44870925 @default.
• W1688897418 hasConcept C4839761 @default.
• W1688897418 hasConcept C50341732 @default.
• W1688897418 hasConcept C62520636 @default.
• W1688897418 hasConcept C74172769 @default.
• W1688897418 hasConcept C86803240 @default.
• W1688897418 hasConcept C89305328 @default.
• W1688897418 hasConcept C98444146 @default.
• W1688897418 hasConceptScore W1688897418C104954878 @default.
• W1688897418 hasConceptScore W1688897418C121332964 @default.
• W1688897418 hasConceptScore W1688897418C12287442 @default.
• W1688897418 hasConceptScore W1688897418C1276947 @default.
• W1688897418 hasConceptScore W1688897418C143724316 @default.
• W1688897418 hasConceptScore W1688897418C151730666 @default.
• W1688897418 hasConceptScore W1688897418C159985019 @default.
• W1688897418 hasConceptScore W1688897418C180205008 @default.
• W1688897418 hasConceptScore W1688897418C192562407 @default.
• W1688897418 hasConceptScore W1688897418C204323151 @default.
• W1688897418 hasConceptScore W1688897418C26405456 @default.
• W1688897418 hasConceptScore W1688897418C2776401274 @default.
• W1688897418 hasConceptScore W1688897418C2778217198 @default.
• W1688897418 hasConceptScore W1688897418C31258907 @default.
• W1688897418 hasConceptScore W1688897418C41008148 @default.
• W1688897418 hasConceptScore W1688897418C43481613 @default.
• W1688897418 hasConceptScore W1688897418C44870925 @default.
• W1688897418 hasConceptScore W1688897418C4839761 @default.
• W1688897418 hasConceptScore W1688897418C50341732 @default.
• W1688897418 hasConceptScore W1688897418C62520636 @default.
• W1688897418 hasConceptScore W1688897418C74172769 @default.
• W1688897418 hasConceptScore W1688897418C86803240 @default.
• W1688897418 hasConceptScore W1688897418C89305328 @default.
• W1688897418 hasConceptScore W1688897418C98444146 @default.
• W1688897418 hasLocation W16888974181 @default.
• W1688897418 hasOpenAccess W1688897418 @default.
• W1688897418 hasPrimaryLocation W16888974181 @default.
• W1688897418 hasRelatedWork W1521585692 @default.
• W1688897418 hasRelatedWork W1607103504 @default.
• W1688897418 hasRelatedWork W1640630960 @default.
• W1688897418 hasRelatedWork W1688897418 @default.
• W1688897418 hasRelatedWork W1994108795 @default.
• W1688897418 hasRelatedWork W1995741857 @default.
• W1688897418 hasRelatedWork W2004468908 @default.
• W1688897418 hasRelatedWork W2006748150 @default.
• W1688897418 hasRelatedWork W2008247547 @default.
• W1688897418 hasRelatedWork W2037978621 @default.
• W1688897418 hasRelatedWork W2043384049 @default.
• W1688897418 hasRelatedWork W2045782218 @default.
• W1688897418 hasRelatedWork W2063242388 @default.

• next