Activity trends in young solar-type stars
Lehtinen, J., Jetsu, L., Hackman, T., Kajatkari, P., Henry, G. W.
Published in Astronomy and astrophysics (Berlin) (01.04.2016)
Published in Astronomy and astrophysics (Berlin) (01.04.2016)
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Journal Article
Flip-flops of FK Comae Berenices
Hackman, T., Pelt, J., Mantere, M. J., Jetsu, L., Korhonen, H., Granzer, T., Kajatkari, P., Lehtinen, J., Strassmeier, K. G.
Published in Astronomy and astrophysics (Berlin) (01.05.2013)
Published in Astronomy and astrophysics (Berlin) (01.05.2013)
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Journal Article
DID THE ANCIENT EGYPTIANS RECORD THE PERIOD OF THE ECLIPSING BINARY ALGOL—THE RAGING ONE?
Jetsu, L, Porceddu, S, Lyytinen, J, KAJATKARI, P, Lehtinen, J, Markkanen, T, Toivari-Viitala, J
Published in The Astrophysical journal (10.08.2013)
Published in The Astrophysical journal (10.08.2013)
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Journal Article
Spot activity of LQ Hydra from photometry between 1988 and 2011
Lehtinen, J., Jetsu, L., Hackman, T., Kajatkari, P., Henry, G. W.
Published in Astronomy and astrophysics (Berlin) (01.06.2012)
Published in Astronomy and astrophysics (Berlin) (01.06.2012)
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Journal Article
Periodicity in some light curves of the solar analogue V352 Canis Majoris
Kajatkari, P., Jetsu, L., Cole, E., Hackman, T., Henry, G. W., Joutsiniemi, S.-L., Lehtinen, J., Mäkelä, V., Porceddu, S., Ryynänen, K., Solea, V.
Published in Astronomy and astrophysics (Berlin) (01.05.2015)
Published in Astronomy and astrophysics (Berlin) (01.05.2015)
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Journal Article
Detection of real periodicity in the terrestrial impact crater record: quantity and quality requirements
Lyytinen, J., Jetsu, L., Kajatkari, P., Porceddu, S.
Published in Astronomy and astrophysics (Berlin) (01.05.2009)
Published in Astronomy and astrophysics (Berlin) (01.05.2009)
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Journal Article
Time‐series analysis of long‐term photometry of BM Canum Venaticorum
Siltala, L., Jetsu, L., Hackman, T., Henry, G. W., Immonen, L., Kajatkari, P., Lankinen, J., Lehtinen, J., Monira, S., Nikbakhsh, S., Viitanen, A., Viuho, J., Willamo, T.
Published in Astronomische Nachrichten (01.05.2017)
Published in Astronomische Nachrichten (01.05.2017)
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Journal Article
Spot activity of II Peg
Hackman, T., Mantere, M.J., Jetsu, L., Ilyin, I., Kajatkari, P., Kochukhov, O., Lehtinen, J., Lindborg, M., Piskunov, N., Tuominen, I.
Published in Astronomische Nachrichten (01.12.2011)
Published in Astronomische Nachrichten (01.12.2011)
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Journal Article
Did the ancient egyptians discover Algol?
Jetsu, L., Porceddu, S., Lyytinen, J., Kajatkari, P., Markkanen, T., Toivari-Viitala, J.
Published in EAS publications series (2013)
Published in EAS publications series (2013)
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Journal Article
Spot activity of the RS Canum Venaticorum star σ Geminorum
Kajatkari, P., Hackman, T., Jetsu, L., Lehtinen, J., Henry, G. W.
Published in Astronomy and astrophysics (Berlin) (01.02.2014)
Published in Astronomy and astrophysics (Berlin) (01.02.2014)
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Journal Article
The continuous period search method and its application to the young solar analogue HD 116956
Lehtinen, J., Jetsu, L., Hackman, T., Kajatkari, P., Henry, G. W.
Published in Astronomy and astrophysics (Berlin) (01.03.2011)
Published in Astronomy and astrophysics (Berlin) (01.03.2011)
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Journal Article
Spot activity of the RS Canum Venaticorum star [sigma] Geminorum
Kajatkari, P, Hackman, T, Jetsu, L, Lehtinen, J, Henry, G W
Published in Astronomy and astrophysics (Berlin) (01.02.2014)
Published in Astronomy and astrophysics (Berlin) (01.02.2014)
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Journal Article
Spot activity of LQ Hydra from photometry between 1988 and 2011
Lehtinen, J, Jetsu, L, Hackman, T, Kajatkari, P, Henry, G W
Published in Astronomy and astrophysics (Berlin) (01.06.2012)
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Published in Astronomy and astrophysics (Berlin) (01.06.2012)
Journal Article
The continuous period search method and its application to the young solar analogue HD 116956 super([sstarf])
Lehtinen, J, Jetsu, L, Hackman, T, Kajatkari, P, Henry, G W
Published in Astronomy and astrophysics (Berlin) (11.02.2011)
Published in Astronomy and astrophysics (Berlin) (11.02.2011)
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Journal Article
Time series analysis of long-term photometry of BM Canum Venaticorum
Siltala, L, Jetsu, L, Hackman, T, Henry, G W, Immonen, L, Kajatkari, P, Lankinen, J, Lehtinen, J, Monira, S, Nikbakhsh, S, Viitanen, A, Viuho, J, Willamo, T
Published in arXiv.org (13.09.2016)
Published in arXiv.org (13.09.2016)
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Journal Article
Did the ancient egyptians record the period of the eclipsing binary Algol - the Raging one?
Jetsu, L, Porceddu, S, Lyytinen, J, Kajatkari, P, Lehtinen, J, Markkanen, T, Toivari-Viitala, J
Published in arXiv.org (24.05.2013)
Published in arXiv.org (24.05.2013)
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Journal Article
Periodicity in some light curves of the solar analogue V352 CMa
Kajatkari, P, Jetsu, L, Cole, E, Hackman, T, Henry, G W, S-L Joutsiniemi, Lehtinen, J, Mäkelä, V, Porceddu, S, Ryynänen, K, V \c{S}olea
Published in arXiv.org (16.10.2013)
Published in arXiv.org (16.10.2013)
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