On the physical nature of the Wilson–Bappu effect: revising the gravity and temperature dependence von Rosas-Portilla, F, Schröder, K -P, Jack, D

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TIGRE: A new robotic spectroscopy telescope at Guanajuato, Mexico von Schmitt, J. H. M. M., Schröder, K.-P., Rauw, G., Hempelmann, A., Mittag, M., González-Pérez, J. N., Czesla, S., Wolter, U., Jack, D., Eenens, P., Trinidad, M. A.

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The globular cluster M10: reassessment of stellar membership, distance, and age using its variable and HB stars von Arellano Ferro, A, Yepez, M A, Muneer, S, Bustos Fierro, I H, Schröder, K P, Giridhar, Sunetra, Calderón, J H

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Stellar activity of evolved, cool giants – old questions revisited von Schröder, K-P, Schmitt, JHMM, Mittag, M, Gómez Trejo, V, Jack, D

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Time series of high-resolution spectra of SN 2014J observed with the TIGRE telescope von Jack, D., Mittag, M., Schröder, K.-P., Schmitt, J. H. M. M., Hempelmann, A., González-Pérez, J. N., Trinidad, M. A., Rauw, G., Cabrera Sixto, J. M.

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Study of the variability of Nova V5668 Sgr, based on high‐resolution spectroscopic monitoring von Jack, D., Robles Pérez, J. de J., De Gennaro Aquino, I., Schröder, K.‐P., Wolter, U., Eenens, P., Schmitt, J. H. M. M., Mittag, M., Hempelmann, A., González‐Pérez, J. N., Rauw, G., Hauschildt, P. H.

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Distant future of the Sun and Earth revisited von Schröder, K.-P., Connon Smith, Robert

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Revisiting the connection between magnetic activity, rotation period, and convective turnover time for main-sequence stars von Mittag, M., Schmitt, J. H. M. M., Schröder, K.-P.

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A New Version of Reimers' Law of Mass Loss Based on a Physical Approach von Schröder, K.-P, Cuntz, M

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Yet another star in the Albireo system: The discovery of Albireo Ad von Jack, D., Schröder, K.-P., Mittag, M., Bastian, U.

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Chromospheric activity and photospheric variation of α Ori during the great dimming event in 2020 von Mittag, M., Schröder, K.-P., Perdelwitz, V., Jack, D., Schmitt, J. H. M. M.

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Discovery of short-term activity cycles in F-type stars von Mittag, M., Schmitt, J. H. M. M., Hempelmann, A., Schröder, K.-P.

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Magnetic activity of the solar-like star HD 140538 von Mittag, M., Schmitt, J. H. M. M., Metcalfe, T. S., Hempelmann, A., Schröder, K.-P.

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A new photometric study of M14 (NGC 6402): an interpretation of the horizontal branch and beyond von Yepez, M A, Arellano Ferro, A, Deras, D, Bustos Fierro, I, Muneer, S, Schröder, K-P

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The magnetic fields at the surface of active single G-K giants von Aurière, M., Konstantinova-Antova, R., Charbonnel, C., Wade, G. A., Tsvetkova, S., Petit, P., Dintrans, B., Drake, N. A., Decressin, T., Lagarde, N., Donati, J.-F., Roudier, T., Lignières, F., Schröder, K.-P., Landstreet, J. D., Lèbre, A., Weiss, W. W., Zahn, J.-P.

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Relationship between TIGRE solar S-index and USET Ca II K full disk images von Vanden Broeck, G., Bechet, S., Clette, F., Rauw, G., Schröder, K.-P., Mittag, M.

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Measuring rotation periods of solar-like stars using TIGRE: A study of periodic CaII H+K S-index variability von Hempelmann, A, Mittag, M, Gonzalez-Perez, J N, Schmitt, J H M M, Schroder, K P, Rauw, G

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Ca II H+K fluxes from S-indices of large samples: a reliable and consistent conversion based on PHOENIX model atmospheres von Mittag, M., Schmitt, J. H. M. M., Schröder, K.-P.

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Magnetic activity and evolution of the four Hyades K giants von Schröder, K-P, Mittag, M, Jack, D, Rodríguez Jiménez, A, Schmitt, J H M M

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Stellar activity and differential rotation of HD 111395 von Mittag, M., Schmitt, J.H.M.M., Fuhrmeister, B., Robrade, J., Schröder, K.-P.

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