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
Effects of Dust Growth and Settling in T Tauri Disks
Paola D'Alessio,Nuria Calvet,Lee Hartmann,R. Franco-Hernández,R. Franco-Hernández,Hermelinda Servin +5 more
TL;DR: In this paper, a self-consistent disk model for T Tauri stars is presented, which includes a parameterized treatment of dust settling and grain growth, building on techniques developed in a series of papers by D'Alessio et al.
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A spitzer-irs detection of crystalline silicates in a protostellar envelope
Charles A. Poteet,S. Thomas Megeath,Dan M. Watson,Nuria Calvet,Ian S. Remming,Melissa McClure,Benjamin A. Sargent,William J. Fischer,Elise Furlan,Lori Allen,Jon E. Bjorkman,Lee Hartmann,James Muzerolle,John J. Tobin,Babar Ali +14 more
TL;DR: In this paper, the Spitzer Space Telescope Infrared Spectrograph spectrum of the Orion A protostar HOPS-68 was used to detect crystalline silicate absorption in a cold, infalling, protostellar envelope.
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A study of the dependence of Mg II emission on the rotational periods of main-sequence stars
TL;DR: In this article, the International Ultraviolet Explorer satellite measurements of the Mg II chromospheric emission from a sample of late-type dwarfs with known rotational periods are presented.
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The Differential Rotation of FU Ori
Zhaohuan Zhu,Catherine Espaillat,Kenneth H. Hinkle,Jesús Hernández,Lee Hartmann,Nuria Calvet +5 more
TL;DR: In this article, the authors reported a spectrum from the Phoenix instrument on Gemini South which shows that differential (slower) rotation continues to be observed out to ~5 μm.
Journal ArticleDOI
Hier ist wahrhaftig ein Loch im Himmel: The NGC1999 dark globule is not a globule
T. Stanke,Amelia M. Stutz,Amelia M. Stutz,John J. Tobin,Babar Ali,S. T. Megeath,Oliver Krause,H. Linz,Lori Allen,E. A. Bergin,Nuria Calvet,J. Di Francesco,J. Di Francesco,William J. Fischer,Elise Furlan,Lee Hartmann,Th. Henning,P. Manoj,Sébastien Maret,James Muzerolle,Phil Myers,David A. Neufeld,Mayra Osorio,Klaus M. Pontoppidan,Charles A. Poteet,Dan M. Watson,Thomas L. Wilson +26 more
TL;DR: In this article, the authors estimate the mass needed to produce such an absorption feature to be a few tenths to a few M_⊙, based on the Herschel PACS far-infrared images.