Photometric Study on the Spot-Double Star XY Ursae Majoris (II)
The photometric behaviour of XY UMa, an eclipsing binary showing photospheric and chromospheric activity, has been described by spot hypothesis. They are based on the all the available UBV light curves, which were carried out by Geyer since 1955. A "spherical rectangular" spot model shows...
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Korean Space Science Society (KSSS)
1988-12-01
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| Series: | Journal of Astronomy and Space Sciences |
| Online Access: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1988/v5n2/OJOOBS_1988_v5n2_97.pdf |
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doaj-77f6b4b5cbb24f1a806b343ffcadbc7d2020-11-25T01:56:37ZengKorean Space Science Society (KSSS)Journal of Astronomy and Space Sciences2093-55872093-14091988-12-015297109 Photometric Study on the Spot-Double Star XY Ursae Majoris (II)Woo-Baik Lee0Institute of Space Science and Astronomy, Daejeon 302-348The photometric behaviour of XY UMa, an eclipsing binary showing photospheric and chromospheric activity, has been described by spot hypothesis. They are based on the all the available UBV light curves, which were carried out by Geyer since 1955. A "spherical rectangular" spot model shows very pronounced spot activities during the last 30 years. On the average, the spot covered about 16% of the visible hemisphere. Observational evidence for photospheric and chromospheric activities on the XY UMa and related systems are also discussed.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1988/v5n2/OJOOBS_1988_v5n2_97.pdf |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Woo-Baik Lee |
| spellingShingle |
Woo-Baik Lee Photometric Study on the Spot-Double Star XY Ursae Majoris (II) Journal of Astronomy and Space Sciences |
| author_facet |
Woo-Baik Lee |
| author_sort |
Woo-Baik Lee |
| title |
Photometric Study on the Spot-Double Star XY Ursae Majoris (II) |
| title_short |
Photometric Study on the Spot-Double Star XY Ursae Majoris (II) |
| title_full |
Photometric Study on the Spot-Double Star XY Ursae Majoris (II) |
| title_fullStr |
Photometric Study on the Spot-Double Star XY Ursae Majoris (II) |
| title_full_unstemmed |
Photometric Study on the Spot-Double Star XY Ursae Majoris (II) |
| title_sort |
photometric study on the spot-double star xy ursae majoris (ii) |
| publisher |
Korean Space Science Society (KSSS) |
| series |
Journal of Astronomy and Space Sciences |
| issn |
2093-5587 2093-1409 |
| publishDate |
1988-12-01 |
| description |
The photometric behaviour of XY UMa, an eclipsing binary showing photospheric and chromospheric activity, has been described by spot hypothesis. They are based on the all the available UBV light curves, which were carried out by Geyer since 1955. A "spherical rectangular" spot model shows very pronounced spot activities during the last 30 years. On the average, the spot covered about 16% of the visible hemisphere. Observational evidence for photospheric and chromospheric activities on the XY UMa and related systems are also discussed. |
| url |
http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1988/v5n2/OJOOBS_1988_v5n2_97.pdf |
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AT woobaiklee photometricstudyonthespotdoublestarxyursaemajorisii |
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