Matches in SemOpenAlex for { <https://semopenalex.org/work/W3184014006> ?p ?o ?g. }
- W3184014006 endingPage "66" @default.
- W3184014006 startingPage "66" @default.
- W3184014006 abstract "We analyze space-based time series photometry of Sun-like stars, mostly in the Pleiades, but also field stars and the Sun itself. We focus on timescales between roughly 1 hour and 1 day. In the corresponding frequency band these stars display brightness fluctuations with a decreasing power-law continuous spectrum. K2 and Kepler observations show that the RMS flicker due to this Mid-Frequency Continuum (MFC) can reach almost 1%, approaching the modulation amplitude from active regions. The MFC amplitude varies by a factor up to 40 among Pleiades members with similar Teff, depending mainly on the stellar Rossby number Ro. For Ro<0.04, the mean amplitude is roughly constant at about 0.4%; at larger Ro the amplitude decreases rapidly, shrinking by about two orders of magnitude for Ro~1. Among stars, the MFC amplitude correlates poorly with that of modulation from rotating active regions. Among field stars observed for 3 years by Kepler, the quarterly average modulation amplitudes from active regions are much more time-variable than the quarterly MFC amplitudes. We argue that the process causing the MFC is largely magnetic in nature, and that its power-law spectrum comes from magnetic processes distinct from the star's global dynamo, with shorter timescales. By analogy with solar phenomena, we hypothesize that the MFC arises from a (sometimes energetic) variant of the solar magnetic network, perhaps combined with rotation-related changes in the morphology of supergranules." @default.
- W3184014006 created "2021-08-02" @default.
- W3184014006 creator A5013243910 @default.
- W3184014006 creator A5024834130 @default.
- W3184014006 creator A5034726662 @default.
- W3184014006 creator A5048460211 @default.
- W3184014006 creator A5070509490 @default.
- W3184014006 date "2021-07-28" @default.
- W3184014006 modified "2023-09-30" @default.
- W3184014006 title "Brightness Fluctuation Spectra of Sun-like Stars. I. The Mid-frequency Continuum" @default.
- W3184014006 cites W147232447 @default.
- W3184014006 cites W1492236976 @default.
- W3184014006 cites W1592322091 @default.
- W3184014006 cites W1942647475 @default.
- W3184014006 cites W1963593682 @default.
- W3184014006 cites W1972674313 @default.
- W3184014006 cites W1980515115 @default.
- W3184014006 cites W1986316936 @default.
- W3184014006 cites W1987774425 @default.
- W3184014006 cites W1996572743 @default.
- W3184014006 cites W2000430339 @default.
- W3184014006 cites W2002716663 @default.
- W3184014006 cites W2007852449 @default.
- W3184014006 cites W2024476531 @default.
- W3184014006 cites W2029509974 @default.
- W3184014006 cites W2042268798 @default.
- W3184014006 cites W2043916062 @default.
- W3184014006 cites W2044183576 @default.
- W3184014006 cites W2049538575 @default.
- W3184014006 cites W2052748489 @default.
- W3184014006 cites W2062981372 @default.
- W3184014006 cites W2070240923 @default.
- W3184014006 cites W2070508637 @default.
- W3184014006 cites W2080215444 @default.
- W3184014006 cites W2083674881 @default.
- W3184014006 cites W2108892540 @default.
- W3184014006 cites W2127400668 @default.
- W3184014006 cites W2128026783 @default.
- W3184014006 cites W2130023882 @default.
- W3184014006 cites W2184417792 @default.
- W3184014006 cites W2191609207 @default.
- W3184014006 cites W2227350766 @default.
- W3184014006 cites W2558422827 @default.
- W3184014006 cites W2749229678 @default.
- W3184014006 cites W2768891835 @default.
- W3184014006 cites W2796140279 @default.
- W3184014006 cites W2798336535 @default.
- W3184014006 cites W2912794117 @default.
- W3184014006 cites W2951907465 @default.
- W3184014006 cites W2963818985 @default.
- W3184014006 cites W2967662625 @default.
- W3184014006 cites W3032874046 @default.
- W3184014006 cites W3098167675 @default.
- W3184014006 cites W3098241645 @default.
- W3184014006 cites W3098327075 @default.
- W3184014006 cites W3098471461 @default.
- W3184014006 cites W3099825045 @default.
- W3184014006 cites W3100073592 @default.
- W3184014006 cites W3100114972 @default.
- W3184014006 cites W3100692371 @default.
- W3184014006 cites W3100734313 @default.
- W3184014006 cites W3101509191 @default.
- W3184014006 cites W3102902430 @default.
- W3184014006 cites W3103583749 @default.
- W3184014006 cites W3103832984 @default.
- W3184014006 cites W3104092127 @default.
- W3184014006 cites W3104678543 @default.
- W3184014006 cites W3105621264 @default.
- W3184014006 cites W3106282713 @default.
- W3184014006 cites W3121413621 @default.
- W3184014006 cites W3121771241 @default.
- W3184014006 cites W3164122475 @default.
- W3184014006 cites W4211135453 @default.
- W3184014006 cites W4291432632 @default.
- W3184014006 cites W51209491 @default.
- W3184014006 doi "https://doi.org/10.3847/1538-4357/ac0635" @default.
- W3184014006 hasPublicationYear "2021" @default.
- W3184014006 type Work @default.
- W3184014006 sameAs 3184014006 @default.
- W3184014006 citedByCount "1" @default.
- W3184014006 countsByYear W31840140062022 @default.
- W3184014006 crossrefType "journal-article" @default.
- W3184014006 hasAuthorship W3184014006A5013243910 @default.
- W3184014006 hasAuthorship W3184014006A5024834130 @default.
- W3184014006 hasAuthorship W3184014006A5034726662 @default.
- W3184014006 hasAuthorship W3184014006A5048460211 @default.
- W3184014006 hasAuthorship W3184014006A5070509490 @default.
- W3184014006 hasBestOaLocation W31840140061 @default.
- W3184014006 hasConcept C115260700 @default.
- W3184014006 hasConcept C120665830 @default.
- W3184014006 hasConcept C121332964 @default.
- W3184014006 hasConcept C125245961 @default.
- W3184014006 hasConcept C1276947 @default.
- W3184014006 hasConcept C135757623 @default.
- W3184014006 hasConcept C150846664 @default.
- W3184014006 hasConcept C180205008 @default.
- W3184014006 hasConcept C2780846721 @default.
- W3184014006 hasConcept C32161561 @default.