activity
20062026
most citedTaking the Measure of the Universe: Precision Astrometry with SIM PlanetQuest

145 citations · 378 across the 23 of their papers we have counts for

collaborators
Showing astro-ph.SRShow all

8 papers · 1 filter

astro-ph.SR2025

Distributions of wide binary stars in theory and in Gaia data: III. Orbital momenta, masses, and manifestations of MOND

Valeri V. Makarov

Using the censored catalog of 103,169 resolved Gaia DR3 binary stars with accurate astrometric data for each component, a new observable, object-specific parameter is computed for…

astro-ph.SR2025

Distributions of wide binary stars in theory and in Gaia data: II. Reconstruction of sample probability density of true orbit sizes

Valeri V. Makarov

Wide binary stars are important for testing alternative models of gravitation in the weak-field regime and understanding the statistical outcomes of dynamical interactions in the g…

astro-ph.SR2025★ 3 cited

Orbital inclination of astrometric binaries and the dearth of face-on orbits in Gaia DR3 solutions

Valeri V. Makarov

The orbital solutions for astrometric (unresolved) binary stars provided in the Gaia mission Data Release 3 reveal an obvious deficit of face-on orbits with line-of-sight inclinati…

astro-ph.SR2025

Distributions of wide binary stars in theory and in Gaia data: I. Generalized Ambartsumian (1937) approach and the family of power-law distributions of eccentricity

Valeri V. Makarov

The orbital parameter space of wide, weakly bound binary stars has been shaped by the still poorly known circumstances of their formation, as well as by subsequent dynamical evolut…

astro-ph.SR2024

Verification of astrometrically accelerating stars from Hipparcos and Gaia: I. Methodology and application to HIP 44842

Valeri V. Makarov, Andrei Tokovinin

A large number of candidate binary stars with apparent acceleration on the sky has emerged from analysis of astrometric data collected by the Hipparcos, Tycho-2, and Gaia space mis…

astro-ph.SR2015★ 8 cited

UrHip Proper Motion Catalog

Julien Frouard, Bryan N. Dorland, Valeri V. Makarov +2

Proper motions are computed and collected in a catalog using the Hipparcos positions (epoch 1991.25) and URAT1 positions (epoch 2012.3 to 2014.6). The goal is to obtain a significa…

astro-ph.SR2009★ 94 cited

Starspot Jitter in Photometry, Astrometry and Radial Velocity Measurements

V. V. Makarov, C. A. Beichman, J. H. Catanzarite +4

Analytical relations are derived for the amplitude of astrometric, photometric and radial velocity perturbations caused by a single rotating spot. The relative power of the star sp…

astro-ph.SR2009

X-Ray Sources in Multiple Stars

V. V. Makarov, P. P. Eggleton

Luminous X-ray stars are very often found in visual double or multiple stars. Binaries with periods of a few days possess the highest degree of coronal X-ray activity among regular…