Forbich, Berger, and Reid attempt to use a large radio array to detect stellar wobbles induced by orbiting planets at larger separations than are usually probed
The mass of a substellar companion can help determine whether it’s a planet or a brown dwarf. But how can you measure the mass of a companion that you can’t detect directly? Look at the disk!
During the three months that I worked as a visitor in the “Commissioning and Science Verification” group at ALMA, I had the opportunity to spend four week-long “turnos” (shifts) in northern Chile at the ALMA Operations Support Facility (OSF), where the antennas are operated. If you’re interested to learn more about ALMA, you can check […]
Note: This is the second astrobite in a periodic series chronicling my adventures doing astronomy research in Chile (click here to read the first astrobite of the series). For details on ALMA (the Atacama Large Millimeter/submillimeter Array), check out the observatory’s website, and go here for resources with more details on ALMA science and techniques. […]
I went back to school this summer – at 7,000 feet with scorpions and Fourier Transforms.
Improving stellar astrophysical measurements will help us to better characterize exoplanets. The interferometric observational techniques applied here allow scientists to precisely measure the stellar parameters (including star’s radius) of a nearby system with exoplanets, including a transiting super-Earth.