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The Black Hole Mass and Photometric Components of NGC 4826
Kayhan Gültekin, Karl Gebhardt, John Kormendy +6
We present IR photometry and HST imaging and spectroscopy of Sab galaxy NGC 4826. Schwarzschild dynamical modeling is used to measure its central black hole mass . Photometric d…
Theoretical Foundation of Black Hole Image Reconstruction using PRIMO
Dimitrios Psaltis, Feryal Ozel, Lia Medeiros +1
A new image-reconstruction algorithm, PRIMO, applied to the interferometric data of the M87 black hole collected with the Event Horizon Telescope (EHT), resulted in an image that r…
Candidate Distant Trans-Neptunian Objects Detected by the New Horizons Subaru TNO Survey
Wesley C. Fraser, Simon B. Porter, Lowell Peltier +41
We report the detection of 239 trans-Neptunian Objects discovered through the on-going New Horizons survey for distant minor bodies being performed with the Hyper Suprime-Cam mosai…
New Synoptic Observations of the Cosmic Optical Background with New Horizons
Marc Postman, Tod R. Lauer, Joel W. Parker +11
We obtained New Horizons LORRI images to measure the cosmic optical background (COB) intensity integrated over The survey comprises 16 high Galac…
A Contact Binary Satellite of the Asteroid (152830) Dinkinesh
Harold F. Levison, Simone Marchi, Keith S. Noll +3
Asteroids with diameters less than about 5 km have complex histories because they are small enough for radiative torques, YORP, to be a notable factor in their evolution. (152830)…
LoVoCCS. II. Weak Lensing Mass Distributions, Red-Sequence Galaxy Distributions, and Their Alignment with the Brightest Cluster Galaxy in 58 Nearby X-ray-Luminous Galaxy Clusters
Shenming Fu, Ian Dell'Antonio, Zacharias Escalante +31
The Local Volume Complete Cluster Survey (LoVoCCS) is an on-going program to observe nearly a hundred low-redshift X-ray-luminous galaxy clusters (redshifts and X-ray…