Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Clausen, J. V."'
Autor:
Hinse, T. C., Baştürk, O., Southworth, J., Feiden, G. A., Tregloan-Reed, J., Kostov, V. B., Livingston, J., Esmer, E. M., Yılmaz, Mesut, Yalçınkaya, Selçuk, Torun, Şeyma, Vos, J., Evans, D. F., Morales, J. C., Wolf, J. C. A., Olsen, E. H., Clausen, J. V., Helt, B. E., Lý, C. T. K., Stahl, O., Wells, R., Herath, M., Jørgensen, U. G., Dominik, M., Skottfelt, J., Peixinho, N., Longa-Peña, P., Kim, Y., Kim, H. -E., Yoon, T. S., Alrebdi, H. I., Zotos, E. E.
The binary star NY Hya is a bright, detached, double-lined eclipsing system with an orbital period of just under five days with two components each nearly identical to the Sun and located in the solar neighbourhood. The objective of this study is to
Externí odkaz:
http://arxiv.org/abs/2404.08594
Akademický článek
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Autor:
Maxted, P. F. L., Hutcheon, R. J., Torres, G., Lacy, C. H. S., Southworth, J., Smalley, B., Pavlovski, K., Marschall, L. A., Clausen, J. V.
Publikováno v:
A&A 578, A25 (2015)
V1094 Tau is bright eclipsing binary star with an orbital period close to 9 days containing two stars similar to the Sun. Our aim is to test models of Sun-like stars using precise and accurate mass and radius measurements for both stars in V1094 Tau.
Externí odkaz:
http://arxiv.org/abs/1503.04435
Autor:
Torres, G., Lacy, C. H. Sandberg, Pavlovski, K., Feiden, G. A., Sabby, J. A., Bruntt, H., Clausen, J. V.
We report extensive photometric and spectroscopic observations of the 6.1-day period, G+M-type detached double-lined eclipsing binary V530 Ori, an important new benchmark system for testing stellar evolution models for low-mass stars. We determine ac
Externí odkaz:
http://arxiv.org/abs/1410.6170
Autor:
Vos, J., Clausen, J. V., Jørgensen, U. G., Østensen, R. H., Claret, A., Hillen, M., Exter, K.
Publikováno v:
A&A 540,A64 (2012)
Recent studies have shown that stellar chromospheric activity, and its effect on convective energy transport in the envelope, is most likely the cause of significant radius and temperature discrepancies between theoretical evolution models and observ
Externí odkaz:
http://arxiv.org/abs/1202.4851
Autor:
Torres, G., Clausen, J. V., Bruntt, H., Claret, A., Andersen, J., Nordstrom, B., Stefanik, R. P., Latham, D. W.
CONTEXT: Accurate physical properties of eclipsing stars provide important constraints on models of stellar structure and evolution, especially when combined with spectroscopic information on their chemical composition. Empirical calibrations of the
Externí odkaz:
http://arxiv.org/abs/1112.3974
Autor:
Brogaard, K., Bruntt, H., Grundahl, F., Clausen, J. V., Frandsen, S., VandenBerg, D. A., Bedin, L. R.
Earlier measurements of the masses and radii of the detached eclipsing binary V20 in the open cluster NGC 6791 were accurate enough to demonstrate that there are significant differences between current stellar models. Here we improve on those results
Externí odkaz:
http://arxiv.org/abs/1009.5537
Autor:
Zacharias, N., Einicke, O. H., Augustesen, K., Clausen, J. V., Finch, C., Hoeg, E., Wycoff, G. L.
The Brorfelde Schmidt CCD Catalog (BSCC) contains about 13.7 million stars, north of +49 deg Declination with precise positions and V, R photometry. The catalog has been constructed from the reductions of 18,667 CCD frames observed with the Brorfelde
Externí odkaz:
http://arxiv.org/abs/1006.4602
Autor:
Clausen, J. V., Frandsen, S., Bruntt, H., Olsen, E. H., Helt, B. E., Gregersen, K., Juncher, D., Krogstrup, P.
We present a detailed study of the F-type detached eclipsing binary BK Peg, based on new photometric and spectroscopic observations. The two components, which have evolved to the upper half of the main-sequence band, are quite different with masses a
Externí odkaz:
http://arxiv.org/abs/1004.1903
We present a detailed study of the G0V detached eclipsing binary EW Ori, based on new photometric and spectroscopic observations. Masses and radii that are precise to 0.9% and 0.5%, respectively, have been established for both components. The 1.12 Ms
Externí odkaz:
http://arxiv.org/abs/0912.3450