The radial velocity of the sun as a star and the solar cycle
Radial velocity measurements of the sun as a star using a resonant scattering spectrometer have been obtained at Izaña (Tenerife) during long observing seasons from 1976 to 1985. Its analysis shows that except for the global oscillations with periods shorter than one day there are stable signals wit...
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| Veröffentlicht in: | Advances in space research 1986, Vol.6 (8), p.89-92 |
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| container_title | Advances in space research |
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| creator | Jiménez, A. Pallé, P.L. Régulo, C. Cortés, T.Roca Isaak, G.R. McLeod, C.P. van der Raay, H.B. |
| description | Radial velocity measurements of the sun as a star using a resonant scattering spectrometer have been obtained at Izaña (Tenerife) during long observing seasons from 1976 to 1985. Its analysis shows that except for the global oscillations with periods shorter than one day there are stable signals with longer periods: at ∼13 days with mean amplitude of ∼ 3 m/s (it changes with the solar cycle) and another one of ∼ 15 m/s amplitude which shows a temporal variation of various years related to the solar cycle. The first signal has a partial explanation as an effect produced by the passage of active regions through the visible surface of the sun but it does not completely explain the observed signal. The second one, related to the limb shift, is probably due to changes in the convection zone in connection with the solar cycle. |
| doi_str_mv | 10.1016/0273-1177(86)90415-1 |
| format | Article |
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Its analysis shows that except for the global oscillations with periods shorter than one day there are stable signals with longer periods: at ∼13 days with mean amplitude of ∼ 3 m/s (it changes with the solar cycle) and another one of ∼ 15 m/s amplitude which shows a temporal variation of various years related to the solar cycle. The first signal has a partial explanation as an effect produced by the passage of active regions through the visible surface of the sun but it does not completely explain the observed signal. The second one, related to the limb shift, is probably due to changes in the convection zone in connection with the solar cycle.</description><identifier>ISSN: 0273-1177</identifier><identifier>EISSN: 1879-1948</identifier><identifier>DOI: 10.1016/0273-1177(86)90415-1</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><ispartof>Advances in space research, 1986, Vol.6 (8), p.89-92</ispartof><rights>1987</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c252t-9c4946017fab1461c133f14d03d7d436c9e84ac014d5bcdd39ed4a97d9f8a1a03</citedby><cites>FETCH-LOGICAL-c252t-9c4946017fab1461c133f14d03d7d436c9e84ac014d5bcdd39ed4a97d9f8a1a03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/0273117786904151$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,4009,27902,27903,27904,65309</link.rule.ids></links><search><creatorcontrib>Jiménez, A.</creatorcontrib><creatorcontrib>Pallé, P.L.</creatorcontrib><creatorcontrib>Régulo, C.</creatorcontrib><creatorcontrib>Cortés, T.Roca</creatorcontrib><creatorcontrib>Isaak, G.R.</creatorcontrib><creatorcontrib>McLeod, C.P.</creatorcontrib><creatorcontrib>van der Raay, H.B.</creatorcontrib><title>The radial velocity of the sun as a star and the solar cycle</title><title>Advances in space research</title><description>Radial velocity measurements of the sun as a star using a resonant scattering spectrometer have been obtained at Izaña (Tenerife) during long observing seasons from 1976 to 1985. 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| ispartof | Advances in space research, 1986, Vol.6 (8), p.89-92 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| title | The radial velocity of the sun as a star and the solar cycle |
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