113 citations · 1.1k across the 46 of their papers we have counts for
36 papers · 1 filter
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…
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…
The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. II. Kinematic structure
Florian Peißker, Michal Zajacek, Matus Labaj +8
The existence of two distinct and apparently unrelated populations of dusty stellar objects in the Nuclear Stellar Cluster (NSC) of the Milky Way, namely IRS 13 and the S-cluster,…
The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. I. Detection of a rich population of dusty objects in the IRS 13 cluster
Florian Peißker, Michal Zajaček, Lauritz Thomkins +6
A detailed analysis of the Nuclear Stellar Cluster (NSC) concedes not only the existence of the Scluster with its fast-moving stars and the supermassive black hole (SMBH) Sgr A*. I…
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…
X3: a high-mass Young Stellar Object close to the supermassive black hole Sgr~A*
Florian Peißker, Michal Zajacek, Nadeen B. Sabha +10
To date, the proposed observation of Young Stellar Objects (YSOs) in the Galactic center (GC) still raises the question where and how these objects could have formed due to the vio…
Mid-Infrared studies of dusty sources in the Galactic Center
Harshitha K. Bhat, Nadeen B. Sabha, Michal Zajaček +5
Mid-Infrared (MIR) images of the Galactic center show extended gas and dust features along with bright IRS sources. Some of these dust features are a part of ionized clumpy streame…
The apparent tail of the Galactic center object G2/DSO
Florian Peißker, Michal Zajacek, Andreas Eckart +6
The observations of the near-infrared excess object G2/DSO induced an increased attention towards the Galactic center and its vicinity. The predicted flaring event in 2014 and the…
First observed interaction of the circumstellar envelope of an S-star with the environment of Sgr A*
Florian Peißker, Basel Ali, Michal Zajaček +7
Several publications highlight the importance of the observations of bow shocks to learn more about the surrounding interstellar medium and radiation field. We revisit the most pro…
Constraining the accretion flow density profile near Sgr A* using the -band emission of the S2 star
S. Elaheh Hosseini, Michal Zajaček, Andreas Eckart +2
The density profile of the ambient medium around a supermassive black hole plays an important role in understanding the inflow-outflow mechanisms in the Galactic Centre. We constra…
Near- and mid-infrared observations in the inner tenth of a parsec of the Galactic center -- Detection of proper motion of a filament very close to Sgr~A*
Florian Peißker, Andreas Eckart, Nadeen B. Sabha +2
We analyze the gas and dust emission in the immediate vicinity of the supermassive black hole Sgr~A* at the Galactic center (GC) with the ESO VLT (Paranal/Chile) instruments SINFON…
An astrophysically motivated ranking criterion for low-latency electromagnetic follow-up of gravitational wave events
M. Celeste Artale, Yann Bouffanais, Michela Mapelli +5
We investigate the properties of the host galaxies of compact binary mergers across cosmic time. To this end, we combine population synthesis simulations together with galaxy catal…
SOFIA/FORCAST Galactic Center Legacy Survey: Overview
Matthew J. Hankins, Ryan M. Lau, James T. Radomski +12
The Galactic Center contains some of the most extreme conditions for star formation in our Galaxy as well as many other phenomena that are unique to this region. Given our relative…
Observations of the 86 GHz SiO maser sources in the Central Parsec of the Galactic Centre
A. Borkar, A. Eckart, C. Straubmeier +8
We present results of 3 mm observations of SiO maser sources in the Galactic Centre (GC) from observations with the Australia Telescope Compact Array between , along the…
A new bow-shock source with bipolar morphology in the vicinity of Sgr A*
F. Peißker, M. Zajacek, A. Eckart +3
Here we present a new bowshock blue-shifted source in the close vicinity of Sgr A* that we name X8. We use data-sets that are based on SINFONI observations with the Very Large Tele…
Host galaxies of merging compact objects: mass, star formation rate, metallicity and colours
M. Celeste Artale, Michela Mapelli, Nicola Giacobbo +4
Characterizing the properties of the host galaxies of merging compact objects provides essential clues to interpret current and future gravitational-wave detections. Here, we inves…
Experimental Indicators of Accretion Processes in Active Galactic Nuclei
A. Eckart, M. Valencia-S., B. Shahzamanian +19
Bright Active Galactic Nuclei are powered by accretion of mass onto the super massive black holes at the centers of the host galaxies. For fainter objects star formation may signif…
Nuclear Activity and the Conditions of Star-formation at the Galactic Center
A. Eckart, M. Valencia-S., B. Shahzamanian +15
The Galactic Center is the closest galactic nucleus that can be studied with unprecedented angular resolution and sensitivity. We summarize recent basic observational results on Sa…
Molecular gas in the immediate vicinity of Sgr A* seen with ALMA
Lydia Moser, Álvaro Sánchez-Monge, Andreas Eckart +9
We report serendipitous detections of line emission with ALMA in band 3, 6, and 7 in the central parsec of the Galactic center at an up to now highest resolution (<0.7''). Among th…
Detection of polarized continuum emission of the Dusty S-cluster Object (DSO/G2)
Banafsheh Shahzamanian, Michal Zajacek, Monica Valencia-S. +4
A peculiar source in the Galactic center known as the Dusty S-cluster Object (DSO/G2) moves on a highly eccentric orbit around the supermassive black hole with the pericenter passa…
Polarized near-infrared light of the Dusty S-cluster Object (DSO/G2) at the Galactic Center
B. Shahzamanian, A. Eckart, M. Zajacek +6
We investigate an infrared-excess source called G2 or Dusty S-cluster Object (DSO) moving on a highly eccentric orbit around the Galaxy's central black hole, Sgr A*. We use, for th…
Approaching hell's kitchen: Molecular daredevil clouds in the vicinity of Sgr A*
Lydia Moser, Álvaro Sánchez-Monge, Andreas Eckart +9
We report serendipitous detections of line emission with the Atacama Large Millimeter/submillimeter Array (ALMA) in band 3, 6, and 7 in the central parsec down to within 1" around…
Effect of an isotropic outflow from the Galactic centre on the bow-shock evolution along the orbit
Michal Zajacek, Andreas Eckart, Vladimir Karas +5
Motivated by the observations of several infrared-excess bow-shock sources and proplyd-like objects near the Galactic centre, we analyse the effect of a potential outflow from the…
Ices in the Galactic Centre : solid ice and gaseous CO in the central parsec
Jihane Moultaka, Andreas Eckart, Nadeen Sabha
For the past few years, we have observed the central half parsec of our Galaxy in the mid-infrared from 2.8 to 5.1 micron. Our aim is to improve our understanding of the direct env…