238 citations · 2.1k across the 53 of their papers we have counts for
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PRISMS. GHZ1. A standard tale of galaxy evolution with atypical ionizing conditions at
Borja Pérez-Díaz, Marco Castellano, Javier Álvarez-Márquez +33
[Abridged] The first operating years of the James Webb Space Telescope (JWST) have revealed a surprising number of UV-bright objects, many of them characterized by t…
First rest-frame infrared spectrum of a z>7 quasar: JWST/MRS observations of J1120+0641
Sarah E. I. Bosman, Javier Álvarez-Márquez, Luis Colina +29
We present a JWST/MRS spectrum of the quasar J1120+0641 at z=7.0848, the first spectroscopic observation of a reionisation-era quasar in the rest-frame infrared (m). In…
Uncovering the stellar structure of the dusty star-forming galaxy GN20 at z=4.055 with MIRI/JWST
L. Colina, A. Crespo Gómez, J. Álvarez-Márquez +35
Luminous infrared galaxies at high redshifts (>4) include extreme starbursts that build their stellar mass over short periods of time (>100 Myr). These galaxies are considered t…
MIRI/JWST observations reveal an extremely obscured starburst in the z=6.9 system SPT0311-58
J. Álvarez-Márquez, A. Crespo Gómez, L. Colina +29
Using MIRI on-board JWST we present mid-infrared sub-arcsec imaging (MIRIM) and spectroscopy (MRS) of the hyperluminous infrared system SPT0311-58 at z=6.9. MIRI observations are c…
Life beyond 30: probing the -20<M_UV<-17 luminosity function at 8<z<13 with the NIRCam parallel field of the MIRI Deep Survey
Pablo G. Pérez-González, Luca Costantin, Danial Langeroodi +41
We present the ultraviolet luminosity function and an estimate of the cosmic star formation rate density at derived from deep NIRCam observations taken in parallel with th…
MIDIS: Strong (Hb + [OIII]) and Ha emitters at redshift unveiled with JWST/NIRCam and MIRI imaging in the Hubble eXtreme Deep Field (XDF)
P. Rinaldi, K. I. Caputi, L. Costantin +44
We make use of \textit{JWST} medium and broad-band NIRCam imaging, along with ultra-deep MIRI imaging, in the Hubble eXtreme Deep Field (XDF) to identify prominent lin…
Nuclear high-ionisation outflow in the Compton-thick AGN NGC6552 as seen by the JWST mid-infrared instrument
J. Álvarez-Márquez, A. Labiano, P. Guillard +17
During the commissioning of the James Webb Space Telescope (JWST), the mid-infrared instrument (MIRI) observed NGC6552 with the MIRI Imager and the medium-resolution spectrograph (…
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…
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…
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…
A low-luminosity type-1 QSO sample: IV. Molecular gas contents and conditions of star formation in three nearby Seyfert galaxies
Lydia Moser, Melanie Krips, Gerold Busch +8
We present a pilot study of ~ 3" resolution observations of low CO transitions with the Submillimeter Array in three nearby Seyfert galaxies, which are part of the low-luminosity q…
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…
Line and Continuum Variability in Active Galaxies
Y. E. Rashed, A. Eckart, M. Valencia-S. +5
We compared optical spectroscopic and photometric data for 18 AGN galaxies over 2 to 3 epochs, with time intervals of typically 5 to 10 years. We used the Multi-Object Double Spect…
A low-luminosity type-1 QSO sample; III. Optical spectroscopic properties and activity classification
E. Tremou, M. Garcia-Marin, J. Zuther +4
We report on the optical spectroscopic analysis of a sample of 99 low-luminosity quasi-stellar objects (LLQSOs) at base the Hamburg/ESO QSO survey (HES). The LLQSOs pr…
SUBARU and e-Merlin observations of NGC3718. Diaries of an SMBH recoil?
K. Markakis, J. Dierkes, A. Eckart +6
NGC3718 is a LINER galaxy, lying at a distance of about Mpc away from earth and its similarities with NGC5128 often award it the name "northern Centaurus A". We…
The Center of the Milky Way from Radio to X-rays
A. Eckart, M. Valencia-S., B. Shahzamanian +13
We summarize basic observational results on Sagittarius~A* obtained from the radio, infrared and X-ray domain. Infrared observations have revealed that a dusty S-cluster object (DS…
Polarized light from Sgr A* in the near-infrared -band
B. Shahzamanian, A. Eckart, M. Valencia-S. +13
We present a statistical analysis of polarized near-infrared (NIR) light from Sgr A*, the radio source associated with the supermassive black hole at the center of the Milky Way. T…
Monitoring the Dusty S-Cluster Object (DSO/G2) on its Orbit towards the Galactic Center Black Hole
M. Valencia-S., A. Eckart, M. Zajacek +23
We analyse and report in detail new near-infrared (1.45 - 2.45 microns) observations of the Dusty S-cluster Object (DSO/G2) during its approach to the black hole at the center of t…
Galaxy evolution across the optical emission-line diagnostic diagrams?
M. Vitale, L. Fuhrmann, M. Garcia-Marin +3
The discovery of the M-sigma relation, the local galaxy bimodality, and the link between black-hole and host-galaxy properties, have raised the question whether AGN play a role in…
ALMA backed NIR high resolution integral field spectroscopy of the NUGA galaxy NGC 1433
Semir Smajic, Lydia Moser, Andreas Eckart +7
We present the results of near-infrared (NIR) H- and K-band European Southern Observatory SINFONI integral field spectroscopy (IFS) of the Seyfert 2 galaxy NGC 1433. We present emi…
The infrared K-band identification of the DSO/G2 source from VLT and Keck data
Andreas Eckart, M. Horrobin, S. Britzen +24
A fast moving infrared excess source (G2) which is widely interpreted as a core-less gas and dust cloud approaches Sagittarius A* (SgrA*) on a presumably elliptical orbit. VLT K_s-…
The Galactic Center as a Paradigm for Low Luminosity Nuclei? The K-band identification of the DSO/G2 source from VLT and Keck data
Andreas Eckart, S. Britzen, M. Horrobin +27
The super-massive 4 million solar mass black hole (SMBH) SgrA* shows flare emission from the millimeter to the X-ray domain. The nucleus of the Milky Way has properties (stellar cl…
The S-Star Cluster at the Center of the Milky Way: On the nature of diffuse NIR emission in the inner tenth of a parsec
Nadeen Sabha, Andreas Eckart, David Merritt +9
Sagittarius A*, the super-massive black hole at the center of the Milky Way, is surrounded by a small cluster of high velocity stars, known as the S-stars. We aim to constrain the…
The Galactic centre mini-spiral in the mm-regime
D. Kunneriath, A. Eckart, S. N. Vogel +10
The mini-spiral is a feature of the interstellar medium in the central ~2 pc of the Galactic center. It is composed of several streamers of dust and ionised and atomic gas with tem…