L
Lee Hartmann
Researcher at University of Michigan
Publications - 590
Citations - 60559
Lee Hartmann is an academic researcher from University of Michigan. The author has contributed to research in topics: Stars & T Tauri star. The author has an hindex of 134, co-authored 579 publications receiving 57649 citations. Previous affiliations of Lee Hartmann include University of Hawaii & National Science Foundation.
Papers
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Journal ArticleDOI
The Age of Gliese 879 and Fomalhaut
David Barrado y Navascués,John R. Stauffer,John R. Stauffer,Lee Hartmann,Suchitra C. Balachandran,Suchitra C. Balachandran +5 more
TL;DR: In this article, the authors estimate the age of one of the prototypes of the β Pic-like stars, Fomalhaut, based on the properties of its common proper motion companion Gl 879.
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On the relationship between coronae and mass loss in late-type stars
TL;DR: In this paper, high-dispersion spectra taken with the IUE are used to examine the temperature stratification of the wind of the hybrid atmosphere star Alpha TrA (K4 II).
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Wide-Angle Wind-driven Bipolar Outflows: High-Resolution Models with Application to Source I of the Becklin-Neugebauer/Kleinmann-Low OMC-I Region
TL;DR: In this article, the inner regions of a wide-angle wind-driven bipolar outflow were modeled using an adaptive mesh refinement code, and it was shown that the head of the outflow is unstable and that it rapidly fragments into clumps.
Evolution of Disk Accretion
TL;DR: In this paper, the authors review the present knowledge of disk accretion in young low mass stars, and in particular, the mass accretion rate and its evolution with time, and they suggest that the low-mass accretion rates of the latter objects require episodes of high mass accuration rate to build the bulk of the star.
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A spectroscopic census in young stellar regions: The σ orionis cluster
Jesús Hernández,Nuria Calvet,Alice Perez,Alice Perez,Cesar Briceno,Lorenzo Olguín,M. E. Contreras,Lee Hartmann,Lori Allen,Catherine Espaillat,Ramírez Hernan +10 more
TL;DR: In this paper, a survey of the stellar population of the σ Orionis cluster is presented, where spectral types for 340 stars are obtained from several spectrographs with similar spectroscopic coverage and resolution.