121 citations · 1.1k across the 32 of their papers we have counts for
33 papers
Distance to the Brick cloud using stellar kinematics
Á. Martínez-Arranz, R. Schödel, F. Nogueras-Lara +1
Context. The central molecular zone at the Galactic center is currently being studied intensively to understand how star formation proceeds under the extreme conditions of a galact…
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…
Self-consistent modelling of the Milky Way's Nuclear Stellar Disc
Mattia C. Sormani, Jason L. Sanders, Tobias K. Fritz +14
The Nuclear Stellar Disc (NSD) is a flattened high-density stellar structure that dominates the gravitational field of the Milky Way at Galactocentric radius $30\lesssim R\lesssim…
A proper motion catalogue for the Milky Way's nuclear stellar disc
B. Shahzamanian, R. Schoedel, F. Nogueras-Lara +5
We present the results of a large-scale proper motion study of the central ~36'x16' of the Milky Way, based on our high angular resolution GALACTICNUCLEUS survey (epoch 2015) combi…
Radio observations of massive stars in the Galactic centre: The Quintuplet cluster
A. T. Gallego-Calvente, R. Schoedel, A. Alberdi +4
We present high-angular-resolution radio continuum observations of the Quintuplet cluster, one of the most emblematic massive clusters in the Galactic centre. Data were acquired in…
Radio observations of massive stars in the Galactic centre: The Arches Cluster
A. T. Gallego-Calvente, R. Schoedel, A. Alberdi +8
We present high-angular-resolution radio observations of the Arches cluster in the Galactic centre, one of the most massive young clusters in the Milky Way. The data were acquired…
The Milky Way's nuclear star cluster: Old, metal-rich, and cuspy
R. Schödel, F. Nogueras-Lara, E. Gallego-Cano +3
(abridged) We provide Ks photometry for roughly 39,000 stars and H-band photometry for about 11,000 stars within a field of about 40"x40", centred on Sgr A*. In addition, we provid…
GALACTICNUCLEUS: A high-angular-resolution JHKs imaging survey of the Galactic centre III. Evidence for wavelength dependence of the extinction curve in the near-infrared
Francisco Nogueras-Lara, Rainer Schödel, Nadine Neumayer +4
The characterisation of the extinction curve in the near infrared (NIR) is fundamental to analyse the structure and stellar population of the Galactic centre (GC), whose analysis i…
New constraints on the structure of the nuclear stellar cluster of the Milky Way from star counts and MIR imaging
E. Gallego-Cano, R. Schödel, F. Nogueras-Lara +5
The Milky Way nuclear star cluster (MWNSC) is a crucial laboratory for studying the galactic nuclei of other galaxies, but its properties have not been determined unambiguously unt…
First results from a large-scale proper motion study of the Galactic Centre
B. Shahzamanian, R. Schödel, F. Nogueras-Lara +4
Proper motion studies of stars in the centre of the Milky Way have been typically limited to the Arches and Quintuplet clusters and to the central parsec. Here, we present the firs…
Early formation and recent starburst activity in the nuclear disc of the Milky Way
F. Nogueras-Lara, R. Schödel, A. T. Gallego-Calvente +10
The nuclear disc is a dense stellar structure at the centre of the Milky Way, with a radius of 150 pc. It has been a place of intense star formation in the past several tens…
Variability of the near-infrared extinction curve towards the Galactic centre
Francisco Nogueras-Lara, Rainer Schödel, Francisco Najarro +4
Due to the extreme extinction towards the Galactic centre ( mag), its stellar population is mainly studied in the near-infrared (NIR) regime. Therefore, a proper ana…
GALACTICNUCLEUS: A high-angular-resolution JHKs imaging survey of the Galactic centre II. First data release of the catalogue and the most detailed CMDs of the GC
Francisco Nogueras-Lara, Rainer Schödel, Aurelia Teresa Gallego-Calvente +7
The high extinction and extreme source crowding of the central regions of the Milky Way are serious obstacles to the study of the structure and stellar population of the Galactic c…
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…
Bow shock sources close to the Galactic centre
Michal Zajacek, Andreas Eckart, Seyedeh Elaheh Hosseini
We provide an up-to-date summary of the current observational and theoretical studies of stellar bow-shock sources close to the Galactic centre. The symmetry axis of a bow shock pr…
Light and shadow in the Galactic Center - On the detection of the relativistic periastron shift of star S2 in the Galactic Center
A. Eckart, M. Parsa, E. Mossoux +11
We report on the nature of prominent sources of light and shadow in the Galactic Center. With respect to the Bremsstrahlung X-ray emission of the hot plasma in that region the Gala…
The Multifrequency Behavior of Sagittarius A*
A. Eckart, M. Zajacek, M. Parsa +15
The Galactic Center is the closest galactic nucleus that allows us to determine the multi-frequency behavior of the supermassive black hole counterpart Sagittarius A* in great deta…
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…
Investigating the Relativistic Motion of the Stars Near the Supermassive Black Hole in the Galactic Center
M. Parsa, A. Eckart, B. Shahzamanian +4
The S-star cluster in the Galactic center allows us to study the physics close to a supermassive black hole, including distinctive dynamical tests of general relativity. Our best e…
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…
Polarimetry narrows down the possibilities for the Dusty S-cluster Object (DSO/G2) in the Galactic centre
Michal Zajaček, Andreas Eckart, Banafsheh Shahzamanian
There have been many speculations about the character of the dusty object moving fast in the vicinity of the Galactic centre black hole. The recent detection of polarized continuum…
Nature of the Galactic centre NIR-excess sources. I. What can we learn from the continuum observations of the DSO/G2 source?
Michal Zajaček, Silke Britzen, Andreas Eckart +9
The Dusty S-cluster Object (DSO/G2) orbiting the supermassive black hole (Sgr A*) in the Galactic centre has been monitored in both near-infrared continuum and line emission. There…
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…