Shown at left is an artist’s rendering of the probable outflow structure of the binary star system UY Aurigae. An international team of astronomers revealed this binary star system’s complicated outflow structure using the Gemini North’s Near-Infrared Integral Field Spectrometer with the Altair adaptive optics system. The team found that the primary star has a wide, open outflow, while the secondary star has a well-collimated jet. Because many stars form together as companions in binary or multiple systems, investigating these systems is essential for understanding star and planet formation.
Image credit: National Astronomical Observatory of Japan