Atmospheric Extinction Corrections for WET Observations
Abstract: Account of the extinction in the Earth’s atmosphere is an important part of the WET light curve reduction procedures. Usually, WET observations are not corrected for the second order extinction effects: the dependence of the extinction coefficient on spectral type and on air mass (the Forbes effect). The ignorance of these effects does not change seriously the derived pulsation amplitudes at the frequencies higher than 200 μHz but the increase of the noise at lower frequencies takes place. For obtaining the true extra-atmospheric magnitudes of stars, a modification of the extinction correction procedure is proposed. For photometry with the R647 phototube we recommend to use a filter cutting out the region below 310 nm, in order to decrease and stabilize the extinction coefficient. A method for estimation of spectral type of the comparison star from WET observations is proposed.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Atmospheric Extinction Corrections for WET Observations ; volume:12 ; number:2 ; year:2003 ; pages:221-242 ; extent:22
Open astronomy ; 12, Heft 2 (2003), 221-242 (gesamt 22)
- Urheber
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Pakštienė, E.
Solheim, J. E.
- DOI
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10.1515/astro-2017-0046
- URN
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urn:nbn:de:101:1-2405271636529.245409031972
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:48 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Pakštienė, E.
- Solheim, J. E.
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