Susan Clark, an astrophysicist at Stanford University, is delving into the mysteries of the Milky Way’s magnetic field, a crucial piece of the galactic puzzle. The interstellar medium, which consists of gas and dust sculpted into stars by magnetic fields, has always intrigued Clark. She leads the Cosmic Magnetism and Interstellar Physics group at Stanford, where she uses innovative observational techniques, simulations, and theory to unravel the enigma of galactic magnetism.
Measuring the galactic magnetic field has been a challenge for scientists, as it cannot be detected directly. Instead, astronomers study dust aligned by the magnetic field and the light passing through it to glean insights into the hidden force. Despite many unknowns, new tools and methods are bringing us closer to understanding how magnetism shapes the evolution of stars and galaxies.
In a recent interview, Clark shared her quest to uncover the role of the magnetic field in shaping the interstellar medium, where stars are born. By studying the transition of gas between different physical states and the alignment of molecular clouds with the magnetic field, she hopes to piece together the puzzle of star formation.
Through observations of dust polarization and far-infrared light from galaxies like the Antennae galaxies, Clark and her colleagues are beginning to unravel the structure of magnetic fields in other galaxies. These observations provide valuable clues about the origin and evolution of galactic magnetic fields.
While the ultimate origin of galactic magnetic fields remains a mystery, Clark is driven by the challenge of tackling complex and unanswered questions in astrophysics. Her passion for understanding the intricacies of the interstellar medium was sparked during a research experience at Arecibo in Puerto Rico, where she gained a deep appreciation for the mysteries of space.
Clark’s journey from a college student considering a double major in biology and English to an astrophysicist unraveling the secrets of the universe is a testament to her curiosity, love of learning, and dedication to scientific exploration. As she continues her research into galactic magnetism, she remains committed to shedding light on the hidden forces that shape our galaxy.
In conclusion, Susan Clark’s work in unraveling the mysteries of galactic magnetism offers a glimpse into the intricate processes that govern the birth and evolution of stars. By studying the interstellar medium and the role of magnetic fields in shaping it, she is paving the way for a deeper understanding of the cosmic forces at play in our universe.