The solar motion and the variability of solar activity

Charvátová, Ivanka

doi:10.1016/0273-1177(88)90184-6

Cited by 24 publications

(18 citation statements)

References 13 publications

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“…This has served as the precise and legible basis to which the studies have been related. The Sun enters into the trefoil sections of its orbit every 178.7 years and this type of orbit lasts about 50 years (CharvÃ atovÃ a, 1988(CharvÃ atovÃ a, , 1990b. The second tool is the spectrum of SIM periods (Bucha et al., 1985) computed from the series 3100 years long.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Periodicities between 6 and 16 years in surface air temperature in possible relation to solar inertial motion

Charvátová¹,

Střeštı́k²

2004

Journal of Atmospheric and Solar-Terrestrial Physics

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Section: Discussionmentioning

confidence: 99%

“…The disordered orbits di er from one to another. In the previous papers, responses of SIM in solar, geomagnetic and volcanic activities have been pointed out (CharvÃ atovÃ a-JakubcovÃ a et al., 1988;CharvÃ atovÃ a, 1990bCharvÃ atovÃ a, , 1997aCharvÃ atovÃ a, ,b, 2000.…”

Section: Introductionmentioning

confidence: 96%

Periodicities between 6 and 16 years in surface air temperature in possible relation to solar inertial motion

Charvátová¹,

Střeštı́k²

2004

Journal of Atmospheric and Solar-Terrestrial Physics

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“…Nevertheless, the period of this repetition is variable and we identify this quantity just with a nominal Joseperiod. Fairbridge & Shirley (1987) and Charvátová (1988) also found that very definite patterns in solar inertial motion are repeated every Jose-period, in which the Sun alternates between a trefoliar-like (quasi-symmetric) orbit and a lapse of "disordered" motion. The first orbital phase was arbitrarily determined over an ∼50 yr period, which is dominated by the first harmonic of the Jupiter-Saturn synodic period (JS period), that is, JS/2, ∼9.93 yr, with the remaining portion with a period of about 120 yr (Charvátová 2009).…”

Section: Introductionmentioning

confidence: 92%

Solar barycentric dynamics from a new solar-planetary ephemeris

Cionco

Pavlov

2018

A&A

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Aims. The barycentric dynamics of the Sun has increasingly been attracting the attention of researchers from several fields, due to the idea that interactions between the Sun’s orbital motion and solar internal functioning could be possible. Existing high-precision ephemerides that have been used for that purpose do not include the effects of trans-Neptunian bodies, which cause a significant offset in the definition of the solar system’s barycentre. In addition, the majority of the dynamical parameters of the solar barycentric orbit are not routinely calculated according to these ephemerides or are not publicly available. Methods. We developed a special version of the IAA RAS lunar–solar–planetary ephemerides, EPM2017H, to cover the whole Holocene and 1 kyr into the future. We studied the basic and derived (e.g., orbital torque) barycentric dynamical quantities of the Sun for that time span. A harmonic analysis (which involves an application of VSOP2013 and TOP2013 planetary theories) was performed on these parameters to obtain a physics-based interpretation of the main periodicities present in the solar barycentric movement. Results. We present a high-precision solar barycentric orbit and derived dynamical parameters (using the solar system’s invariable plane as the reference plane), widely accessible for the whole Holocene and 1 kyr in the future. Several particularities and barycentric phenomena are presented and explained on dynamical bases. A comparison with the Jet Propulsion Laboratory DE431 ephemeris, whose main differences arise from the modelling of trans-Neptunian bodies, shows significant discrepancies in several parameters (i.e., not only limited to angular elements) related to the solar barycentric dynamics. In addition, we identify the main periodicities of the Sun’s barycentric movement and the main giant planets perturbations related to them.

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“…It has been studied since 1965 (Jose (1965), Fairbridge and Shirley (1987), Juckett (2000)). The significant properties of the SIM due to the giant planets (Jupiter (J), Saturn (S), Uranus (U), Neptune (N)) have been found in our Institute: e.g., Bucha et al (1985), Jakubcová and Pick (1987), Charvátová (1988Charvátová ( , 1990aCharvátová ( ,b, 1997aCharvátová ( ,b, 2000 and Střeštík (1991, 1994). Charvátová (1988Charvátová ( , 1990a divided SIM into two basic types, the ordered in the trefoils (according to the JS motion order) and the disordered (chaotic).…”

Section: Introductionmentioning

confidence: 98%

“…The significant properties of the SIM due to the giant planets (Jupiter (J), Saturn (S), Uranus (U), Neptune (N)) have been found in our Institute: e.g., Bucha et al (1985), Jakubcová and Pick (1987), Charvátová (1988Charvátová ( , 1990aCharvátová ( ,b, 1997aCharvátová ( ,b, 2000 and Střeštík (1991, 1994). Charvátová (1988Charvátová ( , 1990a divided SIM into two basic types, the ordered in the trefoils (according to the JS motion order) and the disordered (chaotic). The ''beat'' of the Solar System is done by the motion of the two greatest giant planets J and S. Their conjunctions take place after about 117.3°from the previous ones; their synodic period (JS) is 19.86 years.…”

Section: Introductionmentioning

confidence: 98%