activity
20242026
most citedGone with the Wind: JWST-MIRI Unveils a Strong Outflow from the Quiescent Stellar-Mass Black Hole A0620-00

1 citations · 2 across the 12 of their papers we have counts for

collaborators
Showing astro-ph.GAShow all

5 papers · 1 filter

astro-ph.GA2026

Ionization Structure and Metal Enrichment of the Galactic Center Minispiral Observed with JWST

Nicole M Ford, Mayura Balakrishnan, Sebastiano D. von Fellenberg +11

Sagittarius A* (Sgr A*) is the nearest quiescent supermassive black hole, and its proximity offers a unique opportunity to study its surrounding fuel supply. We leverage extensive…

astro-ph.GA2025★ 1 cited

Photometric Constraints on Intermediate-mass Black Holes in the Galactic Centre

Tamojeet Roychowdhury, Sebastiano D. von Fellenberg, Joseph M. Michail +14

JWST/MIRI observations can place photometric limits on the presence of an intermediate-mass black hole (IMBH) near the Galactic Centre. The stellar complex IRS 13E, a co-moving con…

astro-ph.GA2025

Parsec-scale SiO emission in the Galactic Center

N. Wenner, C. J. Chandler, J. M. Michail +2

The central 5 parsecs of our Galactic Center is rich in various molecular tracers. The region is observed to be hot, highly ionized, and volatile, resulting in complex chemistry an…

astro-ph.GA2025

Non-stop Variability of Sgr A* using JWST at 2.1 and 4.8 micron Wavelengths: Evidence for Distinct Populations of Faint and Bright Variable Emission

F. Yusef-Zadeh, H. Bushouse, R. G. Arendt +3

We present first results of JWST Cycle 1 and 2 observations of Sgr A* using NIRCam taken simultaneously at 2.1 and 4.8 micron for a total of ~48 hours over seven different epochs i…

astro-ph.GA2024

The interaction of a large-scale nuclear wind with the high velocity HII region G0.17+0.15

F. Yusef-Zadeh, Jun-Hui Zhao, R. Arendt +4

We investigate the nature of a Galactic center source, G0.17+0.15, lying along the northern extension of the Radio Arc near l~0.2deg. G0.17+0.15 is an HII region located toward the…