FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2896925830> ?p ?o ?g. }

• W2896925830 abstract "The latitudinal distribution of starspots deviates from the solar pattern with increasing rotation rate. Numerical simulations of magnetic flux emergence and transport can help model the observed stellar activity patterns and the associated brightness variations. We set up a composite model for the processes of flux emergence and transport on Sun-like stars, to simulate stellar brightness variations for various levels of magnetic activity and rotation rates. Assuming that the distribution of magnetic flux at the base of the convection zone follows solar scaling relations, we calculate the emergence latitudes and tilt angles of bipolar regions at the surface for various rotation rates, using thin-flux-tube simulations. Taking these two quantities as input to a surface flux transport SFT model, we simulate the diffusive-advective evolution of the radial field at the stellar surface, including effects of active region nesting. As the rotation rate increases, (1) magnetic flux emerges at higher latitudes and an inactive gap opens around the equator, reaching a half-width of $20^circ$ for $8Omega_odot$, (2) the tilt angles of freshly emerged bipolar regions show stronger variations with latitude. Polar spots can form at $8Omega_odot$ by accumulation of follower-polarity flux from decaying bipolar regions. From $4Omega_odot$ to $8Omega_odot$, the maximum spot coverage changes from 3 to 20%, respectively, compared to 0.4% for the solar model. Nesting of activity can lead to strongly non-axisymmetric spot distributions. On Sun-like stars rotating at $8Omega_odot$ ($P_{rm rot}simeq 3$ days), polar spots can form, owing to higher levels of flux emergence rate and tilt angles. Defining spots by a threshold field strength yields global spot coverages that are roughly consistent with stellar observations." @default.
• W2896925830 created "2018-10-26" @default.
• W2896925830 creator A5027727842 @default.
• W2896925830 creator A5048198842 @default.
• W2896925830 creator A5053851003 @default.
• W2896925830 creator A5061786986 @default.
• W2896925830 date "2018-10-15" @default.
• W2896925830 modified "2023-09-27" @default.
• W2896925830 title "Forward modelling of brightness variations in Sun-like stars I. Emergence and surface transport of magnetic flux" @default.
• W2896925830 cites W1675262974 @default.
• W2896925830 cites W1970794268 @default.
• W2896925830 cites W1980044520 @default.
• W2896925830 cites W1982263400 @default.
• W2896925830 cites W1995482863 @default.
• W2896925830 cites W2003179869 @default.
• W2896925830 cites W2003926344 @default.
• W2896925830 cites W2009383677 @default.
• W2896925830 cites W2013843356 @default.
• W2896925830 cites W2014064796 @default.
• W2896925830 cites W2019443657 @default.
• W2896925830 cites W2022708930 @default.
• W2896925830 cites W2029025298 @default.
• W2896925830 cites W2031372884 @default.
• W2896925830 cites W2047398288 @default.
• W2896925830 cites W2059224166 @default.
• W2896925830 cites W2065957000 @default.
• W2896925830 cites W2071700092 @default.
• W2896925830 cites W2073485009 @default.
• W2896925830 cites W2076877985 @default.
• W2896925830 cites W2082725177 @default.
• W2896925830 cites W2124340380 @default.
• W2896925830 cites W2126125416 @default.
• W2896925830 cites W2140295472 @default.
• W2896925830 cites W2142963891 @default.
• W2896925830 cites W2159691951 @default.
• W2896925830 cites W2160006988 @default.
• W2896925830 cites W2287206167 @default.
• W2896925830 cites W2319443272 @default.
• W2896925830 cites W2437484925 @default.
• W2896925830 cites W2534839824 @default.
• W2896925830 cites W2539948274 @default.
• W2896925830 cites W2750046406 @default.
• W2896925830 cites W2769800798 @default.
• W2896925830 cites W2950682797 @default.
• W2896925830 cites W3098471461 @default.
• W2896925830 cites W3099676812 @default.
• W2896925830 cites W3100553764 @default.
• W2896925830 cites W3100558033 @default.
• W2896925830 cites W3102027743 @default.
• W2896925830 cites W3102706204 @default.
• W2896925830 cites W3105906456 @default.
• W2896925830 cites W3122954750 @default.
• W2896925830 cites W88485330 @default.
• W2896925830 hasPublicationYear "2018" @default.
• W2896925830 type Work @default.
• W2896925830 sameAs 2896925830 @default.
• W2896925830 citedByCount "0" @default.
• W2896925830 crossrefType "journal-article" @default.
• W2896925830 hasAuthorship W2896925830A5027727842 @default.
• W2896925830 hasAuthorship W2896925830A5048198842 @default.
• W2896925830 hasAuthorship W2896925830A5053851003 @default.
• W2896925830 hasAuthorship W2896925830A5061786986 @default.
• W2896925830 hasBestOaLocation W28969258301 @default.
• W2896925830 hasConcept C115260700 @default.
• W2896925830 hasConcept C121332964 @default.
• W2896925830 hasConcept C122523270 @default.
• W2896925830 hasConcept C125245961 @default.
• W2896925830 hasConcept C1276947 @default.
• W2896925830 hasConcept C12980444 @default.
• W2896925830 hasConcept C139653429 @default.
• W2896925830 hasConcept C150846664 @default.
• W2896925830 hasConcept C157479481 @default.
• W2896925830 hasConcept C191897082 @default.
• W2896925830 hasConcept C192562407 @default.
• W2896925830 hasConcept C2524010 @default.
• W2896925830 hasConcept C2779557605 @default.
• W2896925830 hasConcept C2780379797 @default.
• W2896925830 hasConcept C29705727 @default.
• W2896925830 hasConcept C32161561 @default.
• W2896925830 hasConcept C33923547 @default.
• W2896925830 hasConcept C44870925 @default.
• W2896925830 hasConcept C62520636 @default.
• W2896925830 hasConcept C68709404 @default.
• W2896925830 hasConcept C74050887 @default.
• W2896925830 hasConceptScore W2896925830C115260700 @default.
• W2896925830 hasConceptScore W2896925830C121332964 @default.
• W2896925830 hasConceptScore W2896925830C122523270 @default.
• W2896925830 hasConceptScore W2896925830C125245961 @default.
• W2896925830 hasConceptScore W2896925830C1276947 @default.
• W2896925830 hasConceptScore W2896925830C12980444 @default.
• W2896925830 hasConceptScore W2896925830C139653429 @default.
• W2896925830 hasConceptScore W2896925830C150846664 @default.
• W2896925830 hasConceptScore W2896925830C157479481 @default.
• W2896925830 hasConceptScore W2896925830C191897082 @default.
• W2896925830 hasConceptScore W2896925830C192562407 @default.
• W2896925830 hasConceptScore W2896925830C2524010 @default.
• W2896925830 hasConceptScore W2896925830C2779557605 @default.
• W2896925830 hasConceptScore W2896925830C2780379797 @default.
• W2896925830 hasConceptScore W2896925830C29705727 @default.
• W2896925830 hasConceptScore W2896925830C32161561 @default.

• next