Project/blog link:Determining the Hubble Constant BASIS Advisor: Dr. Shawn Whaley Internship location: Earth and Space Exploration Department at Arizona State University Onsite Mentor: Dr. Nathaniel Butler, Assistant Professor of Astrophysics
In 1925, American astronomer Edwin Hubble determined that universe is expanding. Then, in 1998, with the launch of the Hubble Telescope, astronomers found that the universe expands at an increasing rate, prompting experts to debate the rate at which that expansion occurs. This rate, the Hubble Constant, is one of the most important cosmological values because it allows astronomers to determine the universe’s age and size. Several astronomers have made Hubble Constant calculations, but due to their own individual data, the answers they arrive at vary. With recent innovations in technology, however, they have come to a closer conclusion. For this project, I will imitate the measurements made by astronomers in order to find the rate at which the universe is expanding through the use of Python, a programming language, which will allow me to input data collected from supernovas. This data includes redshift (the change of light in space), velocity, and distance. All these values will be vital in my contribution to finding the universe’s rate of expansion.