Publications (45)
High spatial resolution mid-infrared observations of the low-mass young star TW Hya
Th. Ratzka, Ch. Leinert, Th. Henning +3
We want to improve knowledge of the structure of the inner few AU of the circumstellar disk around the nearby T Tauri star TW Hya. Earlier studies have suggested the existence of a…
A Thin HI Circumnuclear Disk in NGC4261
H. J. van Langevelde, Y. M. Pihlstroem, J. E. Conway +2
We report on high sensitivity, spectral line VLBI observations of the HI absorption feature in the radio galaxy NGC4261. Although absorption is only detectable on the most sensitiv…
Mid-infrared interferometry of Seyfert galaxies: Challenging the Standard Model
N. López-Gonzaga, W. Jaffe
Aims: We aim to find torus models that explain the observed high-resolution mid-infrared (MIR) measurements of active galactic nuclei (AGN). Our goal is to determine the general pr…
GRAVITY for MATISSE -- Improving the MATISSE performance with the GRAVITY fringe tracker
J. Woillez, R. Petrov, R. Abuter +23
Context: MATISSE, the mid-infrared spectro-imaging instrument of VLTI, was designed to deliver its advertised performance when paired with an external second generation fringe trac…
Images of Betelgeuse with VLTI/MATISSE across the Great Dimming
J. Drevon, F. Millour, P. Cruzalèbes +31
From Nov. 2019 to May 2020, the red supergiant star Betelgeuse experienced an unprecedented drop of brightness in the visible domain called the great dimming event. Large atmospher…
An overview of the mid-infrared spectro-interferometer MATISSE: science, concept, and current status
A. Matter, B. Lopez, P. Antonelli +104
MATISSE is the second-generation mid-infrared spectrograph and imager for the Very Large Telescope Interferometer (VLTI) at Paranal. This new interferometric instrument will allow…
HII and H2 in the envelopes of cooling flow central galaxies
W. Jaffe, M. N. Bremer, K. Baker
We report observations of ionized and warm molecular gas in the extended regions of the central galaxies in several cooling flow clusters. These show that both gas phases are prese…
A catalogue of stellar diameters and fluxes for mid-infrared interferometry
P. Cruzalèbes, R. G. Petrov, S. Robbe-Dubois +14
We present the Mid-infrared stellar Diameters and Fluxes compilation Catalogue (MDFC) dedicated to long-baseline interferometry at mid-infrared wavelengths (3-13 mum). It gathers d…
Science with MATISSE
S. Wolf, B. Lopez, J. -Ch. Augereau +21
We present an overview of the scientific potential of MATISSE, the Multi Aperture mid-Infrared SpectroScopic Experiment for the Very Large Telescope Interferometer. For this purpos…
The complex inner disk of the Herbig Ae star HD 100453 with VLTI/MATISSE
L. N. A. van Haastere, J. Varga, M. R. Hogerheijde +35
The inner regions of planet-forming disks hold invaluable insights for our understanding of planet formation. The disk around the Herbig star HD 100453 presents one such environmen…
Decoding the molecular torus of NGC 1068: Insights into its structure and kinematics from high-resolution ALMA observations
V. Gámez Rosas, P. van der Werf, J. F. Gallimore +12
We dissect the kinematics and morphology of the molecular gas within the near-nuclear region of NGC 1068 to understand the mechanisms in the central AGN that might be fueling it, a…
VLTI-MATISSE L- and N-band aperture-synthesis imaging of the unclassified B[e] star FS Canis Majoris
K. -H. Hofmann, A. Bensberg, D. Schertl +58
Context: FS Canis Majoris (FS CMa, HD 45677) is an unclassified B[e] star surrounded by an inclined dust disk. The evolutionary stage of FS CMa is still debated. Perpendicular to t…
The complexity of parsec-scaled dusty tori in AGN
K. R. W. Tristram, M. Schartmann, L. Burtscher +5
Warm gas and dust surround the innermost regions of active galactic nuclei (AGN). They provide the material for accretion onto the super-massive black hole and they are held respon…
Resolving HD 100546 disc in the mid-infrared: Small inner disc and asymmetry near the gap
O. Panic, Th. Ratzka, G. D. Mulders +5
A region of roughly half of the solar system scale around the star HD 100546 is largely cleared of gas and dust, in contrast to the bright outer disc. However, some material is obs…
First MATISSE L-band observations of HD 179218. Is the inner 10 au region rich in carbon dust particles?
E. Kokoulina, A. Matter, B. Lopez +58
Carbon is one of the most abundant components in the Universe. While silicates have been the main focus of solid phase studies in protoplanetary discs (PPDs), little is known about…
HST Detections of Massive Black Holes in the Centers of Galaxies
H. C. Ford, Z. I. Tsvetanov, L. Ferrarese +1
After correcting spherical aberration in the Hubble Space Telescope in 1993, the central masses of galaxies can be measured with a resolution 5 to 10 times better than can be achie…
Mid-infrared circumstellar emission of the long-period Cepheid l Carinae resolved with VLTI/MATISSE
V. Hocdé, N. Nardetto, A. Matter +149
The nature of circumstellar envelopes (CSE) around Cepheids is still a matter of debate. The physical origin of their infrared (IR) excess could be either a shell of ionized gas, o…
Infrared Spectra of Cooling Flow Galaxies
W. Jaffe, M. N. Bremer, P. P. van der Werf
We have taken K-band spectra covering 7 cooling flow clusters. The spectra show many of the 1-0S transitions of molecular Hydrogen, as well as some of the higher vibrational transi…
Unlocking the dynamics of Young Stellar Objects: Time-Domain Interferometry with six 4-m class telescopes
A. Soulain, B. Lopez, A. Matter +32
The dynamics of the inner regions of young stellar objects (YSOs) is driven by a variety of physical phenomena, from magnetospheres and accretion to the dust sublimation rim and in…
Resolving the compact dusty discs around binary post-AGB stars using N-band interferometry
P. Deroo, H. Van Winckel, M. Min +8
We present the first mid-IR long baseline interferometric observations of the circumstellar matter around binary post-AGB stars. Two objects, SX Cen and HD 52961, were observed usi…
The core flux of the brightest 10 micron galaxies in the southern sky
D. Raban, B. Heijligers, H. Rottgering +4
Aims. Near diffraction-limited images have been taken at 8.9, 11.9, and 12.9 micron for the brightest extragalactic sources in the southern sky, in order to optimally plan N-band o…
MATISSE, the VLTI mid-infrared imaging spectro-interferometer
B. Lopez, S. Lagarde, R. G. Petrov +150
Context:Optical interferometry is at a key development stage. ESO's VLTI has established a stable, robust infrastructure for long-baseline interferometry for general astronomical o…
Resolving the complex structure of the dust torus in the active nucleus of the Circinus galaxy
K. R. W. Tristram, K. Meisenheimer, W. Jaffe +13
To test the dust torus model for active galactic nuclei directly, we study the extent and morphology of the nuclear dust distribution in the Circinus galaxy using high resolution i…
Herschel observations of FIR emission lines in brightest cluster galaxies
A. C. Edge, J. B. R. Oonk, R. Mittal +24
The question of how much gas cools in the cores of clusters of galaxies has been the focus of many, multiwavelength studies in the past 30 years. In this letter we present the firs…
The MATISSE view of the inner region of the RY Tau protoplanetary disk
J. S. Martin, J. Kobus, J. Varga +44
The T-Tauri type young stellar object RY Tau exhibits a dust depleted inner cavity characteristic of a transition disk. We constrain the spatial distribution and mineralogy of dust…
The mid-infrared spectrum of Pictoris b. First VLTI/MATISSE interferometric observations of an exoplanet
M. Houllé, F. Millour, P. Berio +46
Few spectra of directly-imaged exoplanets have been obtained in the mid-infrared (> 3 m). This region is particularly rich in molecular spectral signatures, whose measurements…
The Distribution and Condition of the Warm Molecular Gas in Abell 2597 and Sersic 159-03
J. B. R. Oonk, W. Jaffe, M. N. Bremer +1
We have used the SINFONI integral field spectrograph to map the near-infrared K-band emission lines of molecular and ionised hydrogen in the central regions of two cool core galaxy…
Resolving the innermost parsec of Centaurus A at mid-infrared wavelengths
K. Meisenheimer, K. R. W. Tristram, W. Jaffe +11
We report the results of interferometric observations of Centaurus A with the MID-infrared Interferometer (MIDI) at ESO's VLTI telescope array. The interferometric measurements are…
A Submillimetre Selected Quasar in the Field of Abell478
K. K. Knudsen, P. P. van der Werf, W. Jaffe
We present the discovery of a dusty quasar, SMMJ04135+10277, located behind the galaxy cluster Abell 478. The quasar was discovered as the brightest source in a submillimetre surve…
VLTI/MIDI atlas of disks around low- and intermediate-mass young stellar objects
J. Varga, P. Ãbrahám, L. Chen +13
Context. Protoplanetary disks show large diversity regarding their morphology and dust composition. With mid-infrared interferometry the thermal emission of disks can be spatially…
Herschel photometry of brightest cluster galaxies in cooling flow clusters
A. C. Edge, J. B. R. Oonk, R. Mittal +24
The dust destruction timescales in the cores of clusters of galaxies are relatively short given their high central gas densities. However, substantial mid-infrared and sub-mm emiss…
A Submillimeter Selected Quasar in the Field of Abell 478
K. K. Knudsen, P. P. van der Werf, W. Jaffe
We report the discovery of a z=2.83 quasar in the field of the cooling flow galaxy cluster Abell 478. This quasar was first detected in a submm survey of star forming galaxies at h…
Mid-infrared evidence for iron-rich dust in the multi-ringed inner disk of HD 144432
J. Varga, L. B. F. M. Waters, M. Hogerheijde +40
Context. Rocky planets form by the concentration of solid particles in the inner few au regions of planet-forming disks. Their chemical composition reflects the materials in the di…
The compact circumstellar material around OH 231.8+4.2
M. Matsuura, O. Chesneau, A. A. Zijlstra +7
We have observed the bipolar post-AGB candidate OH 231.8+4.2, using the mid-infrared interferometer MIDI and the infrared camera with the adaptive optics system NACO on the Very La…
Improving the diameters of interferometric calibrators with MATISSE
S. Robbe-Dubois, P. Cruzalèbes, Ph. Berio +16
A good knowledge of the angular diameters of stars used to calibrate the observables in stellar interferometry is fundamental. As the available precision for giant stars is worse t…
Revealing the large nuclear dust structures in NGC 1068 with MIDI/VLTI
N. López-Gonzaga, W. Jaffe, L. Burtscher +2
To understand the relation between the small "obscuring torus" and dusty structures at larger scales (5-10 pc) in NGC 1068, we use ESO's Mid-Infrared Interferometer (MIDI) with the…
Mid-infrared interferometric variability of DG Tau: implications for the inner-disk structure
J. Varga, K. Ã. Gabányi, P. Ãbrahám +12
Context. DG Tau is a low-mass pre-main sequence star, whose strongly accreting protoplanetary disk exhibits a so-far enigmatic behavior: its mid-infrared thermal emission is strong…
The extended atmosphere and circumstellar environment of the cool evolved star VX Sagittarii as seen by MATISSE
A. Chiavassa, K. Kravchenko, M. Montargès +50
Context. VX Sgr is a cool, evolved, and luminous red star whose stellar parameters are difficult to determine, which affects its classification. Aims. We aim to spatially resolve t…
The Mid-IR spatially resolved environment of OH26.5+0.6 at maximum luminosity
O. Chesneau, T. Verhoelst, B. Lopez +6
We present observations of the famous OH/IR star OH26.5+0.6 obtained using the Mid-Infrared Interferometric Instrument MIDI at the European Southern Observatory (ESO) Very Large Te…
Dusty Nuclear Disks and Filaments in Early Type Galaxies
H. D. Tran, Z. Tsvetanov, H. C. Ford +4
We examine the dust properties of a nearby distance-limited sample of early type galaxies using the WFPC2 of the Hubble Space Telescope. Dust is detected in 29 out of 67 galaxies (…
The asymmetric inner disk of the Herbig Ae star HD 163296 in the eyes of VLTI/MATISSE: evidence for a vortex?
J. Varga, M. Hogerheijde, R. van Boekel +133
Context. The inner few au region of planet-forming disks is a complex environment. High angular resolution observations have a key role in understanding the disk structure and the…
Probing the temporal and spatial variations of dust emission in the protoplanetary disk of DG Tau with VLTI/MIDI - Preliminary results
K. E. Gabanyi, L. Mosoni, A. Juhasz +5
The signatures of dust processing and grain growth - related to the formation of rocky planets - are easily seen in mid-infrared spectral features. One important diagnostic tool in…
The dusty torus in the Circinus galaxy: a dense disk and the torus funnel
K. R. W. Tristram, L. Burtscher, W. Jaffe +5
(Abridged) With infrared interferometry it is possible to resolve the nuclear dust distributions that are commonly associated with the dusty torus in active galactic nuclei (AGN).…
Far Ultraviolet Emission in the A2597 and A2204 Brightest Cluster Galaxies
J. B. R. Oonk, N. A. Hatch, W. Jaffe +2
We use the Hubble Space Telescope ACS/SBC and Very Large Telescope FORS cameras to observe the Brightest Cluster Galaxies in Abell 2597 and Abell 2204 in the far-ultraviolet (FUV)…
The sub-arcsecond dusty environment of Eta Carinae
O. Chesneau, M. Min, T. Herbst +15
The core of the nebula surrounding Eta Carinae has been observed with the VLT Adaptive Optics system NACO and with the interferometer VLTI/MIDI to constrain spatially and spectrall…