K
Kaspar von Braun
Researcher at Lowell Observatory
Publications - 150
Citations - 8535
Kaspar von Braun is an academic researcher from Lowell Observatory. The author has contributed to research in topics: Planet & Stars. The author has an hindex of 42, co-authored 148 publications receiving 7806 citations. Previous affiliations of Kaspar von Braun include California Institute of Technology & University of Michigan.
Papers
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Journal ArticleDOI
Stellar Diameters and Temperatures. II. Main-sequence K- and M-stars
Tabetha S. Boyajian,Kaspar von Braun,Gerard T. van Belle,Harold A. McAlister,T. ten Brummelaar,Stephen R. Kane,Philip S. Muirhead,Jeremy Jones,Russel White,Gail H. Schaefer,David R. Ciardi,Todd J. Henry,Mercedes Lopez-Morales,Mercedes Lopez-Morales,Stephen T. Ridgway,Douglas R. Gies,Wei-Chun Jao,Bárbara Rojas-Ayala,J. Robert Parks,Laszlo Sturmann,Judit Sturmann,Nils H. Turner,Chris Farrington,P. J. Goldfinger,D. H. Berger +24 more
TL;DR: In this article, Boyajian et al. presented interferometric angular diameter measurements of 21 low-mass, K- and M-dwarfs made with the CHARA Array.
Journal ArticleDOI
How to constrain your m dwarf: measuring effective temperature, bolometric luminosity, mass, and radius
Andrew W. Mann,Andrew W. Mann,Gregory A. Feiden,Eric Gaidos,Eric Gaidos,Tabetha S. Boyajian,Kaspar von Braun +6 more
TL;DR: In this article, precise and accurate parameters for late-type (late K and M) dwarf stars are important for characterization of any orbiting planets, but such determinations have been hampered by these stars' compl...
Journal ArticleDOI
Stellar Diameters and Temperatures II. Main Sequence K & M Stars
Tabetha S. Boyajian,Kaspar von Braun,Gerard van Belle,Harold A. McAlister,T. ten Brummelaar,Stephen R. Kane,Phil Muirhead,Jeremy Jones,Russel White,Gail Schaefer,David R. Ciardi,Todd J. Henry,Mercedes Lopez-Morales,Stephen T. Ridgway,Douglas R. Gies,Wei-Chun Jao,Bárbara Rojas-Ayala,J. Robert Parks,Laszlo Sturmann,Judit Sturmann,Nils H. Turner,Chris Farrington,P. J. Goldfinger,David H. Berger +23 more
TL;DR: In this paper, the authors presented interferometric diameter measurements of 21 K- and M- dwarfs made with the CHARA Array and derived empirical relations between the stellar Teff, radius, and luminosity to broadband color indices and metallicity.
Journal ArticleDOI
Strong water absorption in the dayside emission spectrum of the planet HD 189733b.
Carl J. Grillmair,Adam Burrows,David Charbonneau,Lee Armus,John Stauffer,Victoria S. Meadows,Jeffrey Van Cleve,Kaspar von Braun,D. Levine +8 more
TL;DR: The detection of strong water absorption in a high-signal-to-noise, mid-infrared emission spectrum of the planet itself is reported, finding both a strong downturn in the flux ratio below 10 µm and discrete spectral features that are characteristic of strong absorption by water vapour.
Journal ArticleDOI
How to Constrain Your M Dwarf: measuring effective temperature, bolometric luminosity, mass, and radius
Andrew W. Mann,Andrew W. Mann,Gregory A. Feiden,Eric Gaidos,Eric Gaidos,Tabetha S. Boyajian,Kaspar von Braun +6 more
TL;DR: In this article, an empirically calibrated method was used to estimate spectroscopic effective temperature and the Stefan-Boltzmann law to determine radii of nearby K7-M7 single stars with a precision of 2-5%.