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| Amy Barger | |
|---|---|
| Name | Amy Barger |
| Birth date | 1970s |
| Birth place | Hastings, Nebraska |
| Nationality | American |
| Fields | Astronomy, Astrophysics |
| Workplaces | University of Hawaiʻi at Mānoa, University of Arizona, University of California, Santa Cruz |
| Alma mater | University of Wisconsin–Madison, University of California, Berkeley |
| Doctoral advisor | John Huchra |
| Known for | Studies of active galactic nuclei, quasar evolution, galaxy interactions, X-ray astronomy |
| Awards | Newton Lacy Pierce Prize in Astronomy, Beatrice M. Tinsley Centennial Visiting Professorship |
Amy Barger
Amy Barger is an American observational astronomer known for pioneering studies of active galactic nuclei, quasar demographics, and the growth of supermassive black holes across cosmic time. She has led large multiwavelength surveys combining optical astronomy, infrared astronomy, and X-ray astronomy to map the evolution of galaxys and central engines in the universe. Barger's work connects datasets from facilities such as the Hubble Space Telescope, the Chandra X-ray Observatory, and the Spitzer Space Telescope to theoretical frameworks developed by researchers at institutions like Harvard–Smithsonian Center for Astrophysics and Max Planck Institute for Astronomy.
Barger was born in Hastings, Nebraska and raised in the American Midwest, where she developed an early interest in astronomy inspired by outreach programs at local planetaria and observatories. She completed her undergraduate studies at the University of Wisconsin–Madison with degrees in physics and astronomy, working with faculty connected to surveys coordinated with the Kitt Peak National Observatory and the National Radio Astronomy Observatory. For graduate study she attended the University of California, Berkeley, where her doctoral research involved spectroscopic and imaging campaigns connected to the Sloan Digital Sky Survey legacy projects and collaborations with groups at Lawrence Berkeley National Laboratory and California Institute of Technology.
Barger's career includes postdoctoral positions and faculty appointments that bridged observational programs at major observatories and survey consortia. She held a postdoctoral fellowship at the University of California, Santa Cruz collaborating with teams on deep-field observations linked to the Hubble Deep Field and subsequent deep surveys. Later she joined the University of Hawaii and the University of Arizona research communities, integrating instruments from ground-based facilities such as the Subaru Telescope and space missions including Spitzer and Chandra. Barger's groups have combined spectroscopy from instruments on the Keck Observatory with photometry from the Two Micron All Sky Survey and mid-infrared catalogs from WISE to compile multiwavelength catalogs used by consortia studying supermassive black hole accretion and star formation histories.
Her research program emphasizes coordination between large collaborations—such as teams working on the Great Observatories Origins Deep Survey, the Cosmic Evolution Survey, and the Chandra Deep Field initiatives—and theoretical modeling groups at institutions like Princeton University and University of Cambridge. She has served on advisory panels for observatory planning at the National Science Foundation-funded facilities and international collaborations tied to the European Southern Observatory and National Astronomical Observatory of Japan.
Barger contributed key observational evidence that linked the buildup of stellar mass in galaxies to the growth of central black holes by demonstrating redshift-dependent trends in active galactic nucleus obscuration and luminosity functions. Using deep X-ray surveys from Chandra and mid-infrared data from Spitzer, her teams quantified the evolving space density of luminous quasars and lower-luminosity active nuclei, refining models of cosmic black hole accretion history pioneered by researchers at Columbia University and Yale University. She helped establish the importance of obscured accretion phases in luminous galaxy mergers, corroborating merger-driven scenarios advanced in theoretical work at Stanford University and University of California, Berkeley.
Barger's analyses of deep-field spectroscopic redshift surveys—leveraging instruments on Keck Observatory and the Very Large Telescope—provided robust measurements of the luminosity functions of galaxies and active nuclei up to high redshift, influencing subsequent survey strategies for missions such as James Webb Space Telescope and next-generation X-ray observatories. Her work on the demographics of submillimeter-selected galaxies tied observations from the Atacama Large Millimeter/submillimeter Array to multiwavelength catalogs, impacting studies at the Max Planck Institute for Radio Astronomy and Institute for Astronomy, University of Edinburgh.
Barger has received recognition from professional societies and academic institutions for her contributions. She was awarded the Newton Lacy Pierce Prize in Astronomy early in her career for observational achievements and has been named to visiting professorships including the Beatrice M. Tinsley Centennial Visiting Professorship. Her leadership roles include appointments on committees for the American Astronomical Society and membership in international advisory boards associated with the International Astronomical Union. She has also been invited to give plenary talks at meetings organized by the American Physical Society and the Royal Astronomical Society.
- Barger, A. J.; Cowie, L. L.; Sanders, D. B.; et al., studies combining Chandra deep-field observations with ground-based spectroscopy to constrain the population of active nuclei. - Barger, A. J.; et al., surveys of faint far-infrared and submillimeter sources connecting ALMA detections to multiwavelength counterparts. - Barger, A. J.; et al., analyses of the luminosity function evolution for active galactic nuclei based on deep X-ray and infrared datasets. (Representative coauthors across these papers include researchers from Massachusetts Institute of Technology, University of California, Berkeley, Princeton University, and Johns Hopkins University).
Barger has participated in public outreach through planetarium lectures, science festivals, and school programs, collaborating with institutions such as the National Air and Space Museum and local observatories. She has mentored graduate students and postdoctoral researchers who have gone on to positions at universities and national laboratories including NASA centers and European research institutes. Outside academia she enjoys community astronomy events and has contributed to curriculum development efforts with science educators connected to the American Association of Physics Teachers.
Category:American astronomers Category:Women astronomers