Hello! My name is Steve Ertel, I'm an astrophysicist and associate researcher at the Department of Astronomy and Steward Observatory at the University of Arizona in Tucson. Here, I am instrument scientist for the Large Binocular Telescope Interferometer (LBTI). I'd like to welcome you on my professional website and to thank you very much for your interest.

My field of research is the formation and evolution of planetary systems. In particular, I'm working on debris disks (dust and planetesimal disks around main sequence stars), exozodiacal dust (warm and hot dust around main sequence stars), and their connection to and interaction with possible planets in these systems. My work focuses on (but is not limited to) imaging observations of debris disks in all wavelength regimes, near- and mid-infrared interferometric observations of exozodiacal dust, and the simultaneous modeling of all available data of debris disks (mostly using analytical models). I'm an active member of the Herschel/DUNES team and the EXOZODI team. As LBTI instrument scientist I am interested in any application of this unique telescopes and its instruments.

I am also interested in the evolution of planetary systems beyond the main sequence. I am coordinating the efforts of the FEARLESS (FatE and AfteRLife of Evolved Solar Systems) collaboration, a loose collaboration working on the post-main sequence evolution of planetary systems.

I recently moved to the Steward Observatory at the University of Arizona in Tucson where I started a position as LBTI instrument scientist. Please see my updated contact information below.

Dr. Steve Ertel
Steward Observatory
933 N Cherry Ave, Tucson, AZ 85719, USA
e-Mail: sertel@email.arizona.edu
Skype: steve_ertel (
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