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A Triple Protostar System Formed via Fragmentation of a Gravitationally Unstable Disk
John Tobin, Kaitlin Kratter, Magnus Persson +9
Binary and multiple star systems are a frequent outcome of the star formation process, and as a result, almost half of all sun-like stars have at least one companion star. Theoreti…
Spiral Density Waves in a Young Protoplanetary Disk
Laura M. Pérez, John M. Carpenter, Sean M. Andrews +20
Gravitational forces are expected to excite spiral density waves in protoplanetary disks, disks of gas and dust orbiting young stars. However, previous observations that showed spi…
Revolutionizing our View of Protostellar Multiplicity and Disks: The VLA Nascent Disk and Multiplicity (VANDAM) Survey of the Perseus Molecular Cloud
John J. Tobin, Leslie W. Looney, Zhi-Yun Li +9
There is substantial evidence for disk formation taking place during the early stages of star formation and for most stars being born in multiple systems; however, protostellar mul…
Disk Polarization From Both Emission and Scattering of Magnetically Aligned Grains: The Case of NGC 1333 IRAS4A1
Haifeng Yang, Zhi-Yun Li, Leslie W. Looney +5
Dust polarization in millimeter (and centimeter) has been mapped in disks around an increasing number of young stellar objects. It is usually thought to come from emission by magne…
The VLA Nascent Disk and Multiplicity Survey of Perseus Protostars (VANDAM). II. Multiplicity of Protostars in the Perseus Molecular Cloud
John J. Tobin, Leslie W. Looney, Zhi-Yun Li +8
We present a multiplicity study of all known protostars (94) in the Perseus molecular cloud from a Karl G. Jansky Very Large Array (VLA) survey at Ka-band (8 mm and 1 cm) and C-ban…
The VLA Nascent Disk and Multiplicity Survey: First Look at Resolved Candidate Disks around Class 0 and I Protostars in the Perseus Molecular Cloud
Dominique M. Segura-Cox, Robert J. Harris, John J. Tobin +8
We present the first dust emission results toward a sample of seven protostellar disk candidates around Class 0 and I sources in the Perseus molecular cloud from the VLA Nascent Di…