摘要:

AbstractFÖPPL(1897) distincts between the positive inertial masses and gravity masses which may have positive and negative signes. FÖPPLhas proved the masses with opposite signes of gravity each other repel. For our normal matter the principle of equivalence is valid. Our “world island” is built by masses with positive gravity only and repels each body with negative gr

ISSN:0004-6337    

DOI:10.1002/asna.2113120402

出版商:WILEY‐VCH Verlag    

年代:1991

数据来源: WILEY

摘要:

AbstractThe fraction of nearby stars born at different galactocentric radii is roughly estimated using the epicyclic approximation of stellar orbits in the galactic disk. Especially, the question of a possible burst origin of features in the local stellar age distribution is discussed. If the “bump” at about 4 Gyr in the frequency distribution of stellar isochrone ages (MEUSINGER1991) is explained by star formation events then they have been locally at the solar galactocentric distance or globally in the whole d

ISSN:0004-6337    

DOI:10.1002/asna.2113120403

出版商:WILEY‐VCH Verlag    

年代:1991

数据来源: WILEY

ISSN:0004-6337    

DOI:10.1002/asna.2113120404

出版商:WILEY‐VCH Verlag    

年代:1991

数据来源: WILEY

摘要:

AbstractThe Babelsberg image processing system which will be used for the new automated measuring machine ASAG (Astronomisches Auswertegerät) includes as special feature an adaptive filtering technique. This technique allows a reduction of noise and the determination of the background in astronomical pictures and has already been used for the surface photometry of galaxies on Schmidt plates. For astrometric purposes a method of detecting and separating images in two‐dimensional measuring rasters was developed within the frame of the ASAG software and algorith

ISSN:0004-6337    

DOI:10.1002/asna.2113120405

出版商:WILEY‐VCH Verlag    

年代:1991

数据来源: WILEY

ISSN:0004-6337    

DOI:10.1002/asna.2113120406

出版商:WILEY‐VCH Verlag    

年代:1991

数据来源: WILEY

摘要:

AbstractWe present a comprehensive compilation of data for both events. Some typical Hα limb and type IV radio spectrogram features are found to be associated. The escape of matter out of loops visible in Hα via blob ejection or loop eruption is associated with fast drift burst signatures resp. early flare continuum (FCE) emission in radio spectra and pulses in HXR. The comparison of both events reveals that the metric radio‐HXR association is essentially a matter of particle escape conditions into the cor

ISSN:0004-6337    

DOI:10.1002/asna.2113120407

出版商:WILEY‐VCH Verlag    

年代:1991

数据来源: WILEY

摘要:

AbstractWe adapt the line‐ratio method to magnetographic measurements. The method yields information on inhomogeneous magneitc fields without resolving their fine structure. Supplementing the magnetic field measurements, each day several polarization calibrations were made to eliminate the influence of the instrument. Modified theoretical calibration curves served for the transformation into inclination angles and magnetic field strength. The circular polarization along some scans across two sunspots practically shows the same distributions in both wings. The linear polarization in these selected scans attained only about half as large values as the circular polarization. The maxima were found in the steep parts of theVdistributions. Comparing the two lines a similar behaviour was found, but also differences of about 0.5 percent, which may be significant.The inclination angles determined by means of calibration curves also seem to be more accurate than those calculated from transverse and longitudinal magnetic field components. As an evidence the results in sunspots and faculae are quoted. The values separately determined for the lines scattered only by 3 respectively 7 degrees from the mean values. In the darkest points of an umbra practically accordance of inclination and heliocentric angle was obtained, i.e., the magnetic vector was directed perpendicular to the surface. From the amount of the circular polarization in faculae comparing it with results of model calculations the filling factors were determined. Our results arranged between 3 and 11 percent nearly agree with the values by SOLANKIand STENFLO(1984).The line‐ratio method in the version adapted to our magnetograph yielded from theVratios in sunspots an average of 1880 G, but from theQ0ratios an average of 2240 G. In faculae both values are practically identical and run to 1980 G. These results show that the line‐ratio method is superior to the old reduction procedure of magnetographic measure

ISSN:0004-6337    

DOI:10.1002/asna.2113120408

出版商:WILEY‐VCH Verlag    

年代:1991

数据来源: WILEY

ISSN:0004-6337    

DOI:10.1002/asna.2113120409

出版商:WILEY‐VCH Verlag    

年代:1991

数据来源: WILEY

摘要:

AbstractThe response of the inner core motion with respect to the mantle due to the attraction of the Sun and the Moon is studied. It could be shown that some periodic constituents of polar motion and the dipole part of the geomagnetic westward drift, which correspond with astronomical nutation periods, are in accordance with the applied hypothesis of a relative precession and nutation of the inner core.

ISSN:0004-6337    

DOI:10.1002/asna.2113120410

出版商:WILEY‐VCH Verlag    

年代:1991

数据来源: WILEY

ISSN:0004-6337    

DOI:10.1002/asna.2113120411

出版商:WILEY‐VCH Verlag    

年代:1991

数据来源: WILEY