Search Results - "Andreasen, D. T."

On the iron ionization balance of cool stars by Tsantaki, M, Santos, N C, Sousa, S G, Delgado-Mena, E, Adibekyan, V, Andreasen, D T

“…Abstract High-resolution spectroscopic studies of solar-type stars have revealed higher iron abundances derived from singly ionized species compared to…”
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Atmospheric stellar parameters for large surveys using FASMA, a new spectral synthesis package by Tsantaki, M., Andreasen, D. T., Teixeira, G. D. C., Sousa, S. G., Santos, N. C., Delgado-Mena, E., Bruzual, G.

“…Abstract In the era of vast spectroscopic surveys focusing on Galactic stellar populations, astronomers want to exploit the large quantity and good quality of…”
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ODUSSEAS: Upgraded version with new reference scale and parameter determinations for 82 planet-host M dwarf stars in SWEET-Cat by Antoniadis-Karnavas, A, Sousa, S. G, Delgado-Mena, E, Santos, N. C, Andreasen, D. T

“…A&A, 690, A58 (2024) Aims: Obtaining accurate derivations of stellar atmospheric parameters is crucial in the fields of stellar and exoplanet characterization…”
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On the iron ionization balance of cool stars by Tsantaki, M, Santos, N. C, Sousa, S. G, Delgado-Mena, E, Adibekyan, V, Andreasen, D. T

“…High-resolution spectroscopic studies of solar-type stars have revealed higher iron abundances derived from singly ionized species compared to neutral,…”
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The Metallicity-Period-Mass Diagram of low-mass exoplanets by Sousa, S. G, Adibekyan, V, Santos, N. C, Mortier, A, Barros, S. C. C, Delgado-Mena, E, Demangeon, O, Israelian, G, Faria, J. P, Figueira, P, Rojas-Ayala, B, Tsantaki, M, Andreasen, D. T, Brandao, I, Ferreira, A. C. S, Montalto, M, Santerne, A

“…The number of exoplanet detections continues to grow following the development of better instruments and missions. Key steps for the understanding of these…”
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SWEET-Cat updated. New homogenous spectroscopic parameters by Sousa, S. G, Adibekyan, V, Delgado-Mena, E, Santos, N. C, Andreasen, D. T, Ferreira, A. C. S, Tsantaki, M, Barros, S. C. C, Demangeon, O, Israelian, G, Faria, J. P, Figueira, P, Mortier, A, Brandao, I, Montalto, M, Rojas-Ayala, B, Santerne, A

“…A&A 620, A58 (2018) Context: Exoplanets have now been proven to be very common. The number of its detections continues to grow following the development of…”
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Atmospheric stellar parameters for large surveys using FASMA, a new spectral synthesis package by Tsantaki, M, Andreasen, D. T, Teixeira, G. D. C, Sousa, S. G, Santos, N. C, Delgado-Mena, E, Bruzual, G

“…In the era of vast spectroscopic surveys focusing on Galactic stellar populations, astronomers want to exploit the large quantity and good quality of data to…”
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Observational evidence for two distinct giant planet populations by Santos, N. C, Adibekyan, V, Figueira, P, Andreasen, D. T, Barros, S. C. C, Delgado-Mena, E, Demangeon, O, Faria, J. P, Oshagh, M, Sousa, S. G, Viana, P. T. P, Ferreira, A. C. S

“…A&A 603, A30 (2017) Analysis of the statistical properties of exoplanets, together with those of their host stars, are providing a unique view into the process…”
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SWEET-Cat update and FASMA. A new minimization procedure for stellar parameters using high-quality spectra by Andreasen, D. T, Sousa, S. G, Tsantaki, M, Teixeira, G. D. C, Mortier, A, Santos, N. C, Suarez-Andres, L, Delgado-Mena, E, Ferreira, A. C. S

“…A&A 600, A69 (2017) Context: Thanks to the importance that the star-planet relation has to our understanding of the planet formation process, the precise…”
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NIR spectroscopy of the Sun and HD20010 - Compiling a new linelist in the NIR by Andreasen, D. T, Sousa, S. G, Mena, E. Delgado, Santos, N. C, Tsantaki, M, Rojas-Ayala, B, Neves, V

“…A&A 585, A143 (2016) Context: Effective temperature, surface gravity, and metallicity are basic spectroscopic stellar parameters necessary to characterize a…”
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