251 citations · 4.4k across the 57 of their papers we have counts for
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On the Structure of the Orion A Cloud and the Formation of the Orion Nebula Cluster
Lee Hartmann, Andreas Burkert
We suggest that the Orion A cloud is gravitationally collapsing on large scales, and is producing the Orion Nebula Cluster due to the focusing effects of gravity acting within a fi…
High-Resolution Spectroscopy in Tr37: Gas Accretion Evolution in Evolved Dusty Disks
Aurora Sicilia-Aguilar, Lee Hartmann, Gabor Furezs +3
Using the Hectochelle multifiber spectrograph, we have obtained high-resolution (R~34,000) spectra in the Halpha region for a large number of stars in the 4 Myr-old cluster Tr 37,…
The Birth of Molecular Clouds: Formation of Atomic Precursors in Colliding Flows
F. Heitsch, A. D. Slyz, J. E. G. Devriendt +2
Molecular Cloud Complexes (MCCs) are highly structured and ``turbulent''. Observational evidence suggests that MCCs are dynamically dominated systems, rather than quasi-equilibrium…
Why Do T Tauri Disks Accrete?
Lee Hartmann, Paola D'Alessio, Nuria Calvet +1
Observations of T Tauri stars and young brown dwarfs suggest that the accretion rates of their disks scale strongly with the central stellar mass, approximately $\mdot \propto M_*^…
A Correlation Between Pre-Main Sequence Stellar Rotation Rates and IRAC Excesses in Orion
L. M. Rebull, J. R. Stauffer, S. T. Megeath +2
Early observations of T Tauri stars suggested that stars with evidence of circumstellar accretion disks rotated slower than stars without such evidence, but more recent results are…
24-micron Detections of Disks around Very Low-mass Stars and Brown Dwarfs in IC 348: Grain Growth/Settling and Inner Holes?
James Muzerolle, Lucia Adame, Paola D'Alessio +11
We present observations of six late-type members of the young cluster IC 348 detected at 24 microns with the Multiband Imaging Photometer for Spitzer(MIPS). At least four of the ob…