Investigating a Potential Companion for Subdwarf B Star PG1605+072
Is this project an undergraduate, graduate, or faculty project?
Undergraduate
individual
What campus are you from?
Daytona Beach
Authors' Class Standing
Julia Clark, Senior
Lead Presenter's Name
Julia Clark
Faculty Mentor Name
Tomomi Otani
Abstract
Subdwarf B (sdB) stars are elusive late-life stars with high temperature and gravity. The explanation for the formation of sdBs is widely unknown, but a common theory is that they are the result of interactions in a binary system. About 30% of the sdB stars experience pulsations, and the brightness of the star varies in a cycle. Observing the timing of the pulsation frequency will determine if the sdB star is a single star or a part of a binary system. This method is called the pulsation timing method. A viable candidate for this method is the long period pulsator PG1605+072. Using telescopes around the world from the Southeastern Association for Research in Astronomy (SARA), the objective of this work is to utilize the pulsation timing method to determine if PG1605+072 is part of a binary star system.
Did this research project receive funding support from the Office of Undergraduate Research.
No
Investigating a Potential Companion for Subdwarf B Star PG1605+072
Subdwarf B (sdB) stars are elusive late-life stars with high temperature and gravity. The explanation for the formation of sdBs is widely unknown, but a common theory is that they are the result of interactions in a binary system. About 30% of the sdB stars experience pulsations, and the brightness of the star varies in a cycle. Observing the timing of the pulsation frequency will determine if the sdB star is a single star or a part of a binary system. This method is called the pulsation timing method. A viable candidate for this method is the long period pulsator PG1605+072. Using telescopes around the world from the Southeastern Association for Research in Astronomy (SARA), the objective of this work is to utilize the pulsation timing method to determine if PG1605+072 is part of a binary star system.