activity
20192026
most citedThe Galactic Center: Improved Relative Astrometry for Velocities, Accelerations, and Orbits near the Supermassive Black Hole

33 citations · 37 across the 4 of their papers we have counts for

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Showing astro-ph.GAShow all

9 papers · 1 filter

astro-ph.GA2026

A Kinematic Study of Wolf-Rayet Stars at the Galactic Center I: Binary Candidates and Constraints on the Binary Fraction

Rory O. Bentley, Tuan Do, Andrea Ghez +13

We report the binary fraction of Wolf-Rayet (WR) stars within 0.5~pc of the Galactic center obtained through the longest time-baseline (1994-2024) kinematic study of this populatio…

astro-ph.GA20254 cited

Interstellar medium phases and abundances in the central parsec: A JWST MIRI/MRS view of the Galactic center

P. Vermot, A. Ciurlo, D. Rouan +8

We used newly obtained observations from the Mid-Infrared Instrument (MIRI) equipped with the Medium Resolution Spectrometer (MRS) aboard the James Webb Space Telescope (JWST) to e…

astro-ph.GA2025

Tidal phenomena in the Galactic Center: The curious case of X7

Wasif Shaqil, Diego Calderón, Stephan Rosswog +5

Several enigmatic dusty sources have been detected in the central parsec of the Galactic Center. Among them is X7, located at only 0.02 pc from the central super-massive blac…

astro-ph.GA2025

Sagittarius A* -- The Milky Way Supermassive Black Hole

Anna Ciurlo, Mark R. Morris

This chapter provides a detailed overview of Sagittarius A* (Sgr A*), the supermassive black hole at the center of the Milky Way, located in the dense Galactic Center region approx…

astro-ph.GA20244 cited

The Galactic Center in Color: Measuring Extinction with High-Proper-Motion Stars

Z. Haggard, A. M. Ghez, S. Sakai +6

The Milky Way's central parsec is a highly extinguished region with a population of high-proper-motion stars. We have tracked 145 stars for 10 years at wavelengths between 1…

astro-ph.GA2024

An Estimate of the Binary Star Fraction Among Young Stars at the Galactic Center: Possible Evidence of a Radial Dependence

Abhimat K. Gautam, Tuan Do, Andrea M. Ghez +8

We present the first estimate of the intrinsic binary fraction of young stars across the central 0.4 pc surrounding the supermassive black hole (SMBH) at the Milky Way Ga…