activity
19942024
most citedThe Third US Naval Observatory CCD Astrograph Catalog (UCAC3)

353 citations · 2.5k across the 56 of their papers we have counts for

collaborators

56 papers

astro-ph.GA2024

HST Proper Motion of Andromeda III: Another Satellite Co-orbiting The M31 Satellite Plane

Dana I. Casetti-Dinescu, Marcel S. Pawlowski, Terrence M. Girard +5

We measure the absolute proper motion of Andromeda III using ACS/WFC and WFPC2 exposures spanning an unprecedented 22-year time baseline. The WFPC2 exposures have been processed us…

astro-ph.IM2024

Star-Image Centering with Deep Learning II: HST/WFPC2 Full Field of View

Dana I. Casetti-Dinescu, Roberto Baena-Galle, Terrence M. Girard +2

We present an expanded and improved deep-learning (DL) methodology for determining centers of star images on HST/WFPC2 exposures. Previously, we demonstrated that our DL model can…

astro-ph.IM2023★ 8 cited

Star-Image Centering with Deep Learning: HST/WFPC2 Images

Dana I. Casetti-Dinescu, Terrence M. Girard, Roberto Baena-Galle +2

A Deep Learning (DL) algorithm is built and tested for its ability to determine centers of star images on HST/WFPC2 exposures, in filters F555W and F814W. These archival observatio…

astro-ph.GA2022★ 28 cited

Milky Way thin and thick disk kinematics with GAIA EDR3 and RAVE DR5

Katherine Vieira, Giovanni Carraro, Vladimir Korchagin +3

We present a detailed analysis of kinematics of the Milky Way disk in solar neighborhood using GAIA DR3 catalog. To determine the local kinematics of the stellar disks of the Milky…

astro-ph.GA2021★ 7 cited

A New Proper Motion Determination of Leo I

Dana I. Casetti-Dinescu, Caitlin K. Hansen, Terrence M. Girard +3

We measure the absolute proper motion of Leo I using a WFPC2/HST data set that spans up to 10 years, to date the longest time baseline utilized for this satellite. The measurement…

astro-ph.IM2021

A Comprehensive Astrometric Calibration of HST's WFPC2. I. Distortion Mapping

Dana I. Casetti-Dinescu, Terrence M. Girard, Vera Kozhurina-Platais +3

Wide field planetary camera 2 (WFPC2) exposures are already some 20 years older than Gaia epoch observations, or future JWST observations. As such, they offer an unprecedented time…