19.6k citations
- Center for Astrophysics Harvard & SmithsonianUS436 papers
- University of MichiganUS426 papers
- Centre National de la Recherche ScientifiqueFR391 papers
- Fermi National Accelerator LaboratoryUS385 papers
- University of Illinois Urbana-ChampaignUS385 papers
- The Ohio State UniversityUS367 papers
- University of ChicagoUS363 papers
- Kavli Institute for Particle Astrophysics and CosmologyUS360 papers
- Stanford UniversityUS342 papers
- SLAC National Accelerator LaboratoryUS338 papers
- University College LondonGB334 papers
- National Center for Supercomputing ApplicationsUS329 papers
7 papers · 2 filters
Measurement of turbulence profile from defocused ring images
Andrei Tokovinin
A defocused image of a bright single star in a small telescope contains rich information on the optical turbulence, i.e. the seeing. The concept of a novel turbulence monitor based…
Dark Energy Survey Year 3 Results: Point-Spread Function Modeling
M. Jarvis, G. M. Bernstein, A. Amon +79
We introduce a new software package for modeling the point-spread function (PSF) of astronomical images, called Piff (PSFs In the Full FOV), which we apply to the first three years…
Reducing ground-based astrometric errors with Gaia and Gaussian processes
W. F. Fortino, G. M. Bernstein, P. H. Bernardinelli +64
Stochastic field distortions caused by atmospheric turbulence are a fundamental limitation to the astrometric accuracy of ground-based imaging. This distortion field is measurable…
Unsupervised machine learning for transient discovery in Deeper, Wider, Faster light curves
Sara Webb, Michelle Lochner, Daniel Muthukrishna +7
Identification of anomalous light curves within time-domain surveys is often challenging. In addition, with the growing number of wide-field surveys and the volume of data produced…
Mitigation of LEO Satellite Brightness and Trail Effects on the Rubin Observatory LSST
J. Anthony Tyson, Željko Ivezić, Andrew Bradshaw +8
We report studies on the mitigation of optical effects of bright low-Earth-orbit (LEO) satellites on Vera C. Rubin Observatory and its Legacy Survey of Space and Time (LSST). These…
Noise from Undetected Sources in Dark Energy Survey Images
K. Eckert, G. M. Bernstein, A. Amara +66
For ground-based optical imaging with current CCD technology, the Poisson fluctuations in source and sky background photon arrivals dominate the noise budget and are readily estima…