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20032023
most citedStellar Orbits Around the Galactic Center Black Hole

805 citations · 5.3k across the 101 of their papers we have counts for

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11 papers · 1 filter

astro-ph.GA2023★ 6 cited

The JWST Galactic Center Survey -- A White Paper

Rainer Schoedel, Steve Longmore, Jonny Henshaw +111

The inner hundred parsecs of the Milky Way hosts the nearest supermassive black hole, largest reservoir of dense gas, greatest stellar density, hundreds of massive main and post ma…

astro-ph.GA2023

Near-Infrared Flux Distribution of Sgr A* from 2005-2022: Evidence for an Enhanced Accretion Episode in 2019

Grant C. Weldon, Tuan Do, Gunther Witzel +10

Sgr A* is the variable electromagnetic source associated with accretion onto the Galactic center supermassive black hole. While the near-infrared (NIR) variability of Sgr A* was sh…

astro-ph.SR2023

A re-analysis of the isolated black hole candidate OGLE-2011-BLG-0462/MOA-2011-BLG-191

Casey Y. Lam, Jessica R. Lu

There are expected to be isolated black holes (BHs) in the Milky Way. OGLE-2011-BLG-0462/MOA-2011-BLG-191 (OB110462) is the only such BH with a mass measurement to date…

astro-ph.GA2023

Roman Early-Definition Astrophysics Survey Opportunity: Galactic Roman Infrared Plane Survey (GRIPS)

Roberta Paladini, Catherine Zucker, Robert Benjamin +67

A wide-field near-infrared survey of the Galactic disk and bulge/bar(s) is supported by a large representation of the community of Galactic astronomers. The combination of sensitiv…

astro-ph.IM2023

Roman CCS White Paper: Characterizing the Galactic population of isolated black holes

Casey Y. Lam, Natasha Abrams, Jeff Andrews +34

Although there are estimated to be 100 million isolated black holes (BHs) in the Milky Way, only one has been found so far, resulting in significant uncertainty about their propert…

astro-ph.IM2023★ 1 cited

The Galactic Center with Roman

Sean K. Terry, Matthew W. Hosek, Jessica R. Lu +31

We advocate for a Galactic center (GC) field to be added to the Galactic Bulge Time Domain Survey (GBTDS). The new field would yield high-cadence photometric and astrometric measur…

astro-ph.GA2023★ 20 cited

Evidence of a Decreased Binary Fraction for Massive Stars Within 20 Milliparsecs of the Supermassive Black Hole at the Galactic Center

Devin S. Chu, Tuan Do, Andrea Ghez +12

We present the results of the first systematic search for spectroscopic binaries within the central 2 x 3 arcsec around the supermassive black hole at the center of the Milky W…

astro-ph.EP2023★ 5 cited

Confirmation of Color Dependent Centroid Shift Measured After 1.8 years with HST

Aparna Bhattacharya, David Bennett, Jean Philippe Beaulieu +10

We measured precise masses of the host and planet in OGLE-2003-BLG-235 system, when the lens and source were resolving, with 2018 Keck high resolution images. This measurement is i…

astro-ph.IM2023

Smartphone screens as astrometric calibrators

Aidan Walk, Charles-Antoine Claveau, Michael Bottom +4

Geometric optical distortion is a significant contributor to the astrometric error budget in large telescopes using adaptive optics. To increase astrometric precision, optical dist…

astro-ph.GA2023★ 20 cited

Stellar Populations in the Central 0.5 pc of Our Galaxy III: The Dynamical Sub-structures

Siyao Jia, Ningyuan Xu, Jessica R. Lu +12

We measure the 3D kinematic structures of the young stars within the central 0.5 parsec of our Galactic Center using the 10 m telescopes of the W.~M.~Keck Observatory over a time s…

astro-ph.GA2023★ 15 cited

The Swansong of the Galactic Center Source X7: An Extreme Example of Tidal Evolution near the Supermassive Black Hole

Anna Ciurlo, Randall D. Campbell, Mark R. Morris +14

We present two decades of new high-angular-resolution near-infrared data from the W. M. Keck Observatory that reveal extreme evolution in X7, an elongated dust and gas feature, pre…