3 papers
astro-ph.SR2026
The Walkaway Star HP Tau/G2: Evidence for a Stellar Merger
Bo Reipurth, J. Bally, P. Friberg +6
HP~Tau/G2 is a luminous, short-period, fast-rotating G-type weak-line T Tauri star with a large radius, an oblate shape with gravity-darkening, little circumstellar material, and c…
astro-ph.SR2024
iSHELL -band Survey of Class I and Flat Spectrum Sources: Magnetic field measurements in the protostellar phase
C. Flores, M. S. Connelley, B. Reipurth +2
We perform the first magnetic field strength survey of Class I and Flat Spectrum (FS) sources using -band observations with iSHELL. We obtained new observations of 42 Class I an…
astro-ph.SR2024
Haro 5-2: A New Pre-Main Sequence Quadruple Stellar System
Bo Reipurth, C. Briceno, T. R. Geballe +9
We have discovered that the Halpha emission line star Haro 5-2, located in the 3-6 Myr old Ori OB1b association, is a young quadruple system. The system has a 2+2 configuration wit…