Rotation period
Calculation of Economic Rotation Period for Even Aged Stand in Croatia
... Because of the long production (and rotation) period product prices are affected by inflation. Prices of timber assortments and labor price are not equal throughout the production period (100 years ...
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Assessment of Broad-Leaved Forest Stand Management: Stock Densities, Thinning Costs and Profits over a 60-Year Rotation Period
... broad-leaved stand was the highest, followed by that of the fast-growing plantation stand, with the typical plantation stand being the lowest (3.81, 2.90, and 1.15%, respectively). This order was the same for NPVs ...
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The open flux evolution of a solar mass star on the main sequence
... the rotation periods of stars in open clusters of known ...studying rotation period evolution on the main sequence, we have chosen clusters that have ages of 125 Myr or ...years, rotation pe- ...
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Plans for the next GRAPE balloon flight
... instrument rotation about the pointing direction is also known to be quite effective (as demonstrated in ...However, rotation works well only for steady sources of radiation or sources that vary on ...
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A spectro polarimetric study of the planet hosting G dwarf, HD 147513
... reveal rotation periods of ...a rotation period of 10 d, which is the period adopted for the reconstruction in the ...in rotation periods of stars with similar masses at these ages, it ...
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Stellar magnetism: empirical trends with age and rotation
... In this paper, we investigated how the large-scale surface magnetic fields of cool dwarf stars, reconstructed using the ZDI technique, vary with age, rotation period, Rossby number and X-ray luminos- ity. ...
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High resolution spectroscopy of Boyajian’s star during optical dimming events
... The lack of such signature means that either the surface is homogeneous or that it has small spots that are unde- tected at our noise level. To support these results, the radial velocities of the LSD profile (see Sect. ...
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The evolution of surface magnetic fields in young solar-type stars I: the first 250 Myr
... differential rotation and its relationship with PMS disc lifetimes, is difficult to assess from our limited ...of rotation periods and ages up to 600 ...
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An accurate mass determination for Kepler 1655b, a moderately irradiated world with a significant volatile envelope
... • The host star Kepler-1655 is a G0V Sun-like star with a rotation period of 13.6 ±1.4 days. The mag- netic activity behavior that we observe in both our photometric and spectroscopic time series are sim- ...
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Dynamical modelling of neoclassical tearing mode suppression by ECCD
... The dynamical modelling with self consistent island width evolution shows that the effect of ro- tation is an oscillation in the island width with the rotation period. A decrease in the NTM rotation ...
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Stellar magnetism and activity : from stellar interiors to orbiting exoplanets
... cycle period determinations. I reproduce their plot of cycle period against rotation period with open circles in ...cycle period- Rossby number space (open ...
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The energy budget of stellar magnetic fields
... Spectropolarimetric observations have been used to map stellar magnetic fields, many of which display strong bands of azimuthal fields that are toroidal. A number of explanations have been proposed to explain how such ...
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Economic Impact of Douglas fir (Pseudotsuga menziesii [Mirb ] Franco) production in the Czech Republic
... The analysis takes account especially of recommended species composition, share of soil-improving species, rotation period and target management Norway spruce, Scots pine, oak and Europe[r] ...
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Rotation in the Pleiades with K2. I. Data and first results
... Young ( 125 Myr ) , populous (> 1000 members ) , and relatively nearby, the Pleiades has provided an anchor for stellar angular momentum models for both younger and older stars. We used K2 to explore the distribution ...
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The energy budget of stellar magnetic fields
... stellar rotation period plays an important role in determining the fraction of magnetic energy in the toroidal component of the stellar ...the rotation period cannot be the sole parameter that ...
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Constraining stellar physics from red-giant stars in binaries – stellar rotation, mixing processes and stellar activity
... The rotation rates of both zones was optimised until a good agreement with the set of measured rotational splittings was ...surface rotation period of 81 nHz, which is in good agree- ment with the ...
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Studying stellar spin-down with Zeeman–Doppler magnetograms
... of rotation periods at late ...the rotation periods of several hundred mid M dwarfs and found the distribution to be consistent with a scenario of rapid rotation for several Gyr followed by rapid ...
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X-ray and optical studies of intermediate polars
... spin period (rotation period ot the white dwart ^omio^ in the observer’s tram e), and the beat period (rotation period in the binary ...shortest period is believed to ...
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44220ce31025d7eedf6759faca147b262a50143a.pdf
... ( Dupret et al. 2008 ) , and trace amounts of hydrogen restrict rather than expand the instability strip ( Beauchamp et al. 1999 ) . The relatively low-amplitude pulsations observed in PG 0112 + 104 demonstrate that many ...
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The open flux evolution of a solar-mass star on the main sequence
... In principle, the technique we have outlined in this work can also be applied to stars of other masses. However, there would be a number of additional barriers to overcome. First, more ZDI maps of saturated stars would ...
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