T. Tilleman
Papers
2
Total Citations
40
H-Index
2
About
T. Tilleman is an observational astrophysicist specializing in gravitational lensing, quasar accretion physics, and precision astrometry. Their most cited work, "TIME DELAY AND ACCRETION DISK SIZE MEASUREMENTS IN THE LENSED QUASAR SBS 0909+532 FROM MULTIWAVELENGTH MICROLENSING ANALYSIS" (2013, 38 citations), demonstrates a key contribution: using multi-band photometric monitoring from the U.S. Naval Observatory and Liverpool Robotic Telescope to disentangle time delays from microlensing effects. This allowed Tilleman to measure both the quasar's accretion disk size and the Hubble constant-independent time delay—a dual achievement that advances our understanding of supermassive black hole environments and cosmological parameters. Their work on the "U.S. Naval Observatory Robotic Astrometric Telescope 1st Catalog (URAT1)" (2015) further showcases their expertise in large-scale astrometric surveys, providing a foundational reference for precise stellar positions. Tilleman's research bridges observational cosmology and black hole physics, with their microlensing analysis offering a rare direct probe of accretion disk structure at cosmological distances. Their methods continue to inform time-delay cosmography and quasar structure studies.
Research Focus
Key Achievements
Top Papers
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