Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Krivova, Natalie"'
Autor:
Sowmya, Krishnamurthy, Shapiro, Alexander I., Witzke, Veronika, Nèmec, Nina-E., Chatzistergos, Theodosis, Yeo, Kok Leng, Krivova, Natalie A., Solanki, Sami K.
The emission in the near ultraviolet Ca II H&K lines, often quantified via the S-index, has been serving as a prime proxy of solar and stellar magnetic activity. Despite the broad usage of the S-index, the link between the coverage of a stellar disk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7891710cbaf199e22edbcb45a4ac192
Many solar-type stars with near-solar rotation periods exhibit much stronger variability than the Sun (Reinhold et al. 2020). Some of these stars even show very regular, sine-like light curves. Motivated by solar activity complexes, we developed a nu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71762fb0d475abcfcb304983166964f6
Autor:
Krishnamurthy, Sowmya, Nemec, Nina Elisabeth, Shapiro, Alexander, Işık, Emre, Witzke, Veronika, Mints, Alexey, Krivova, Natalie, Solanki, Sami
Ultra-precise astrometry from the Gaia mission is expected to lead to astrometric detections of more than 20,000 exoplanets in our Galaxy. One of the factors that could hamper such detections is the astrometric jitter caused by the magnetic activity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_____10036::71fbdb17315702879953147515230dcc
https://hdl.handle.net/20.500.12846/623
https://hdl.handle.net/20.500.12846/623
In G dwarfs, the surface distribution, coverage and lifetimes of starspots deviate from solar-like patterns as the rotation rate increases. We set up a numerical platform which includes the large-scale rotational and surface flow effects, aiming to s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8db0a194fb178271dbe10e332d841485
Autor:
Norris, Charlotte M., Beeck, Benjamin, Unruh, Yvonne, Solanki, Sami, Yeo, Kok Leng, Krivova, Natalie
Facular contrasts are an important parameter in modelling stellar variability and exoplanet transits. The ultimate goal of this work will be to model the contrasts of faculae for different spectral types and thus improve the modelling of solar and st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56417fc35882f7e1e8811a6094bc494b
Autor:
Haberreiter, Margit, Dasi, Maria, Delouille, Veronique, del Zanna, Giulio, Dudok de Wit, Thierry, Ermolli, Ilaria, Kretzschmar, Matthieu, Krivova, Natalie, Mason, Helen, Qahwaji, Rami, Schmutz, Werner, Solanki, Sami, Thuillier, Gérard, Klairie, Tourpali, Unruh, Yvonne, Verbeeck, Cis, Weber, Mark, Tom, Woods
Publikováno v:
Davos Atmosphere and Cryosphere Assembly DACA-13
Davos Atmosphere and Cryosphere Assembly DACA-13, Jul 2013, Davos, Switzerland
Davos Atmosphere and Cryosphere Assembly DACA-13, Jul 2013, Davos, Switzerland
Variations of solar irradiance are the most important natural factor in driving the terrestrial climate. In particular, it is the time dependent spectral solar irradiance (SSI) that is a crucial input to any climate modelling. There have been previou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::2161640f3464dbdd236784c8c4d445fa
https://hal.archives-ouvertes.fr/hal-00869457
https://hal.archives-ouvertes.fr/hal-00869457
Autor:
Sowmya, Krishnamurthy, Shapiro, Alexander I., Witzke, Veronika, Nèmec, Nina-E., Chatzistergos, Theodosis, Yeo, Kok Leng, Krivova, Natalie A., Solanki, Sami K.
The emission in the near ultraviolet Ca II H&K lines, often quantified via the S-index, has been serving as a prime proxy of solar and stellar magnetic activity. Despite the broad usage of the S-index, the link between the coverage of a stellar disk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a60c398063eeae6b295f730108c73fe5
Autor:
Alvarado-Gómez, Julián David, Hussain, G., Grunhut, J., Cohen, O., Garrafo, C., Drake, J. J., Gombosi, T. I.
Recent developments in instrumentation and observational techniques have opened a new window for stellar magnetic field studies. In particular Zeeman Doppler Imaging (ZDI) is now routinely used to recover the large-scale magnetic field topologies of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17d3dfe66bb02e624f921ba9849715ab
Autor:
Marsden, Stephen
Our understanding of solar magnetic fields is significantly more detailed than we can achieve for other stars. However, over the last few decades, techniques such as Zeeman Doppler Imaging (ZDI), have delivered major advances in the study of stellar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43967504d2f71308be810ce178596e8b
Starspots are an important manifestation of stellar activity and yet their distribution patterns on the lowest mass stars is not well known. Time series spectra of fully convective M dwarfs taken in the red-optical with UVES reveal numerous line prof
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f516b70c114d4f3bd3a5ac9a6dae3240