112 citations · 411 across the 12 of their papers we have counts for
17 papers · 1 filter
Star Formation in the Most Distant Molecular Cloud in the Extreme Outer Galaxy: A Laboratory of Star Formation in an Early Epoch of the Galaxy's Formation
Naoto Kobayashi, Chikako Yasui, Alan T. Tokunaga +1
We report the discovery of active star formation in Digel's Cloud 2, which is one of the most distant giant molecular clouds known in the extreme outer Galaxy (EOG). At the probabl…
The Evolution of the Multiplicity of Embedded Protostars I: Sample Properties and Binary Detections
Michael Connelley, Bo Reipurth, Alan Tokunaga
We present the observational results of a near-infrared survey of a large sample of Class I protostars designed to determine the Class I binary separation distribution from ~100 AU…
The Evolution of the Multiplicity of Embedded Protostars II: Binary Separation Distribution & Analysis
Michael Connelley, Bo Reipurth, Alan Tokunaga
We present the Class I protostellar binary separation distribution based on the data tabulated in the companion paper. We verify the excess of Class I binary stars over solar-type…
Extreme Outer Galaxy: A Laboratory of Star Formation in an Early Epoch of Galaxy Formation
Naoto Kobayashi, Chikako Yasui, Alan T. Tokunaga +1
The extreme outer Galaxy (EOG) has a very different environment from that in the solar neighborhood, with low metallicity (less than -0.5 dex), much lower gas density, and small or…
Star Formation in the Extreme Outer Galaxy: the IMF in a low metallicity environment
Chikako Yasui, Naoto Kobayashi, Alan T. Tokunaga +2
We are conducting a deep near-infrared (NIR) imaging survey of young embedded clusters in the extreme outer Galaxy (hereafter EOG), at the Galactic radius (R_g) of more than 18 kpc…
Infrared Nebulae Around Young Stellar Objects
Michael S. Connelley, Bo Reipurth, Alan T. Tokunaga
We present a K-band atlas of 106 reflection nebulae, 41 of which are new discoveries. We observed these nebulae with the UH 2.2 m telescope in the course of an imaging survey of 19…