Publications (35)
On unveiling Buried Nuclei with JWST: a technique for hunting the most obscured galaxy nuclei from local to high redshift
I. GarcÃa-Bernete, F. R. Donnan, D. Rigopoulou +12
We analyze JWST NIRSpec+MIRI/MRS observations of the infrared (IR) Polycyclic Aromatic Hydrocarbon (PAH) features in the central regions (0.26'' at 6 micron; 50-440 pc…
Unveiling the Main Sequence to Starburst Transition Region with a Sample of Intermediate Redshift Luminous Infrared Galaxies
L. Hogan, D. Rigopoulou, S. GarcÃa-Burillo +8
We present a CO(3-2) study of four systems composed of six (ultra) luminous infrared galaxies (U/LIRGs), located at 0.28 < z < 0.44, that straddle the transition region between reg…
Imaging the Universe in 3D with the VLT: The Next Generation Field Spectrometer SPIFFI
F. Eisenhauer, M. Tecza, S. Mengel +4
We present SPIFFI, the integral field spectrometer for the VLT. This instrument allows simultaneous observation of infrared spectra in more than 1000 image points of a two dimensio…
Near-Infrared-Spectroscopy with Extremely Large Telescopes: Integral-Field- versus Multi-Object-Instruments
F. Eisenhauer, M. Tecza, N. Thatte +3
Integral-field-spectroscopy and multi-object-spectroscopy provide the high multiplex gain required for efficient use of the upcoming generation of extremely large telescopes. We pr…
Simulated stellar kinematics studies of high-redshift galaxies with the HARMONI Integral Field Spectrograph
S. Kendrew, S. Zieleniewski, R. C. W. Houghton +6
We present a study into the capabilities of integrated and spatially resolved integral field spectroscopy of galaxies at z=2-4 with the future HARMONI spectrograph for the European…
Scientific Potential of Enhancing the Integral-Field Spectrometer SPIFFI with a Large Detector and High Spectral Resolution
F. Eisenhauer, P. van der Werf, N. Thatte +4
SPIFFI is the near-infrared integral-field spectrometer for the VLT. Assisted by the SINFONI adaptive optics module, the instrument will be offered to the astronomical community in…
SINFONI - Integral Field Spectroscopy at 50 milli-arcsecond resolution with the ESO VLT
F. Eisenhauer, H. Bonnet, R. Abuter +21
SINFONI is an adaptive optics assisted near-infrared integral field spectrometer for the ESO VLT. The Adaptive Optics Module (built by the ESO Adaptive Optics Group) is a 60-elemen…
CROMOS: A cryogenic near-infrared, multi-object spectrometer for the VLT
R. Genzel, R. Hofmann, D. Tomono +5
We discuss a cryogenic, multi-object near-infrared spectrometer as a second generation instrument for the VLT. The spectrometer combines 20 to 40 independent integral eld units (IF…
ALFA & 3D: integral field spectroscopy with adaptive optics
R. Davies, M. Kasper, N. Thatte +4
One of the most important techniques for astrophysics with adaptive optics is the ability to do spectroscopy at diffraction limited scales. The extreme difficulty of positioning a…
Adaptive Optics Integral Field Spectroscopy of the Young Stellar Objects in LkH_alpha 225
R. I. Davies, M. Tecza, L. W. Looney +5
Progress in understanding the embedded stars in LkHa225 has been hampered by their variability, making it hard to compare data taken at different times, and by the limited resoluti…
Nuclear Dynamics and Star Formation of AGN
R. Davies, L. Tacconi, R. Genzel +1
We are using adaptive optics on Keck and the VLT to probe the dynamics and star formation in Seyfert and QSO nuclei, obtaining spatial resolutions better than 0.1" in the H- and K-…
Optical integral field spectroscopy of intermediate redshift infrared bright galaxies
M. Pereira-Santaella, D. Rigopoulou, G. E. Magdis +10
The extreme infrared (IR) luminosity of local luminous and ultra-luminous IR galaxies (U/LIRGs; 11 < log LIR /Lsun < 12 and log LIR /Lsun > 12, respectively) is mainly powered by s…
Oxford SWIFT IFS and multi-wavelength observations of the Eagle galaxy at z=0.77
Susan A. Kassin, L. Fogarty, T. Goodsall +17
The `Eagle' galaxy at a redshift of 0.77 is studied with the Oxford Short Wavelength Integral Field Spectrograph (SWIFT) and multi-wavelength data from the All-wavelength Extended…
A new era of spectroscopy: SINFONI, NIR integral field spectroscopy at the diffraction limit of an 8m telescope
S. Mengel, F. Eisenhauer, M. Tecza +4
SINFONI, the SINgle Faint Object Near-infrared Investigation, is an instrument for the Very Large Telescope (VLT), which will start its operation mid 2002 and allow for the first t…
Emission from the circumgalactic medium: from cosmological zoom-in simulations to multiwavelength observables
R. Augustin, S. Quiret, B. Milliard +14
We simulate the flux emitted from galaxy halos in order to quantify the brightness of the circumgalactic medium (CGM). We use dedicated zoom-in cosmological simulations with the hy…
Infrared 3D Observations of Nearby Active Galaxies
R. Maiolino, N. Thatte, A. Alonso-Herrero +2
We present multi-wavelength imaging observations of three nearby and famous active galaxies obtained with NICMOS, ISOCAM and the MPE near-IR integral field spectrometer. The data r…
Stellar dynamics observations of a double nucleus in M 83
N. Thatte, M. Tecza, R. Genzel
We report on the discovery of a double nucleus in M 83, based on measurements of the line of sight velocity distribution of stars observed at near infrared wavelengths with the VLT…
Abundant hydrocarbons in a buried galactic nucleus with signs of carbonaceous grain and polycyclic aromatic hydrocarbon processing
I. GarcÃa-Bernete, M. Pereira-Santaella, E. González-Alfonso +5
Hydrocarbons play a key role in shaping the chemistry of the interstellar medium (ISM), but their enrichment and relationship with carbonaceous grains and polycyclic aromatic hydro…
The adaptive optics modes for HARMONI: from Classical to Laser Assisted Tomographic AO
B. Neichel, T. Fusco, J. -F. Sauvage +25
HARMONI is a visible and NIR integral field spectrograph, providing the E-ELT's core spectroscopic capability at first light. HARMONI will work at the diffraction limit of the E-EL…
The Centre of M83
R. C. W. Houghton, N. Thatte
Stellar kinematics show no evidence of hidden mass concentrations at the centre of M83. We show the clearest evidence yet of an age gradient along the starburst arc and interpret t…
Herschel Observations of Far-Infrared Cooling Lines in intermediate Redshift (Ultra)-luminous Infrared Galaxies
D. Rigopoulou, R. Hopwood, G. E. Magdis +17
We report the first results from a spectroscopic survey of the [CII] 158um line from a sample of intermediate redshift (0.2<z<0.8) (ultra)-luminous infrared galaxies, (U)LIRGs (LIR…
HSIM: a simulation pipeline for the HARMONI integral field spectrograph on the European ELT
S. Zieleniewski, N. Thatte, S. Kendrew +5
We present HSIM: a dedicated pipeline for simulating observations with the HARMONI integral field spectrograph on the European Extremely Large Telescope. HSIM takes high spectral a…
JWST reveals cosmic ray dominated chemistry in the local ULIRG IRAS 072510248
G. Speranza, M. Pereira-Santaella, M. Agúndez +7
We analyse the ro-vibrational absorption bands of various molecular cations (HCO, HCNH, and NH) and neutral species (HCN, HNC, and HCN) detected in the \textit{…
The PAH 3.4 micron feature as a tracer of shielding in the Orion Bar and NGC 6240
N. Thatte, D. Rigopoulou, F. R. Donnan +8
We have carried out a detailed analysis of the 3.4 micron spectral feature arising from Polycyclic Aromatic Hydrocarbons (PAH), using JWST archival data. For the first time in an e…
Unveiling the central parsec region of an AGN: the Circinus nucleus in the near infrared with the VLT
M. Almudena Prieto, K. Meisenheimer, Olivier Marco +12
VLT J- to M\p-band adaptive optics observations of the Circinus Galaxy on parsec scales resolve a central bright Ks-band source with a FWHM size of 1.9 0.6 pc. This source is…
Kinematics of Galaxies in the Hubble Deep Field South: Discovery of a Very Massive Spiral at z=0.6
D. Rigopoulou, A. Franceschini, H. Aussel +3
We report the first results from a study of the internal kinematics, based on spatially resolved H_alpha velocity profiles, of three galaxies at redshift z~0.6 and one at redshift…
Structures Of Dust and gAs (SODA): Constraining the innermost dust properties of II Zw96 with JWST observations of HO and CO
I. GarcÃa-Bernete, M. Pereira-Santaella, E. González-Alfonso +4
We analyze JWST NIRSpecMIRI/MRS observations of the infrared (IR) gas-phase molecular bands of the most enshrouded source (D1) within the interacting system and luminous IR gala…
First Principle Simulator of a Stochastically Varying Image Plane for Photon-Counting High Contrast Applications
R. H. Dodkins, K. Davis, B. Lewis +6
Optical and near-infrared Microwave Kinetic Inductance Detectors, or MKIDs, are low-temperature detectors with inherent spectral resolution that are able to instantly register indi…
What Powers Ultra-luminous IRAS Galaxies?
R. Genzel, D. Lutz, E. Sturm +9
We present an ISO SWS and ISOPHOT-S, mid-infrared spectroscopic survey of 15 ultra-luminous IRAS galaxies. We combine the survey results with a detailed case study, based on near-I…
The Central Region of M83
R. C. W. Houghton, N. Thatte
We combine VLT/ISAAC NIR spectroscopy with archival HST/WFPC2 and HST/NICMOS imaging to study the central 20"x20" of M83. Our NIR indices for clusters in the circumnuclear star-bur…
Stellar Dynamics and the implications on the merger evolution in NGC6240
M. Tecza, R. Genzel, L. J. Tacconi +3
We report near-infrared integral field spectroscopy of the luminous merging galaxy NGC 6240. Stellar velocities show that the two K-band peaks separated by 1.6arcsec are the centra…
A Far-Infrared Spectroscopic Survey of Intermediate Redshift (Ultra) Luminous Infrared Galaxies
Georgios E. Magdis, D. Rigopoulou, R. Hopwood +16
We present Herschel far-IR photometry and spectroscopy as well as ground based CO observations of an intermediate redshift (0.21 < z < 0.88) sample of Herschel-selected (ultra)-lum…
Fast and Slow Rotators in the Densest Environments: a SWIFT IFS study of the Coma Cluster
R. C. W. Houghton, Roger L. Davies, F. D'Eugenio +7
We present integral-field spectroscopy of 27 galaxies in the Coma cluster observed with the Oxford SWIFT spectrograph, exploring the kinematic morphology-density relationship in a…
The central kinematics of NGC 1399 measured with 14pc resolution
R. C. W. Houghton, J. Magorrian, M. Sarzi +3
We present near infra-red (NIR) adaptive optics assisted spectroscopic observations of the CO () absorption bands towards the centre of the giant elliptical galaxy NGC 1399…
Seyfert Activity and Nuclear Star Formation in the Circinus Galaxy
R. Maiolino, A. Krabbe, N. Thatte +1
We present high angular resolution (0".15-0".5) near infrared images and spectroscopy of the Circinus galaxy, the closest Seyfert 2 galaxy known. The data reveal a non-stellar nucl…