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In this white paper, we propose an upgrade to the Very Large Telescope Interferometer (VLTI) consisting of the addition of a new 8m Unit Telescope (UT5). The primary goal of this upgrade is to optimise the VLTI for exoplanet detection by…

Instrumentation and Methods for Astrophysics · Physics 2025-12-22 Óscar Carrión-González , Sylvestre Lacour , Mathias Nowak

We have quantified the potential capabilities of detecting local brightness asymmetries in circumstellar disks with the Very Large Telescope Interferometer (VLTI) in the mid-infrared wavelength range. The study is motivated by the need to…

Solar and Stellar Astrophysics · Physics 2018-04-25 Robert Brunngräber , Sebastian Wolf

LINC-NIRVANA (LN) is a high resolution, near infrared imager that uses a multiple field-of-view, layer-oriented, multi-conjugate AO system, consisting of four multi-pyramid wavefront sensors (two for each arm of the Large Binocular…

A near-infrared telescope with an effective aperture diameter of thirty millimeters has been developed. The primary objective of the development is to observe northern bright stars in the $J$, $H$, and $K_{\rm s}$ bands and provide accurate…

In order to evaluate the ground-based infrared telescope sensitivity affected by the noise from the atmosphere, instruments and detectors, we construct a sensitivity model that can calculate limiting magnitudes and signal-to-noise ratio…

Instrumentation and Methods for Astrophysics · Physics 2021-06-02 Zhijun Zhao , Haijing Zhou , Yuchen Zhang , Yun Ling , Fangyu Xu

We have developed a new ISOCAM data reduction technique based on wavelet analysis, especially designed for the detection of faint sources in mid-infrared surveys. This method, the Pattern REcognition Technique for Isocam data (PRETI) has…

Astrophysics · Physics 2007-05-23 H. Aussel , C. J. Cesarsky , D. Elbaz , J. -L. Starck

The characterisation of exoplanets is critical to understanding planet diversity and formation, their atmospheric composition and the potential for life. This endeavour is greatly enhanced when light from the planet can be spatially…

We describe the recent modifications to the data reduction technique for observations acquired with the scanning Fabry-Perot interferometer (FPI) mounted on the 6-m telescope of the Special Astrophysical Observatory that allow the…

Instrumentation and Methods for Astrophysics · Physics 2015-12-09 A. V. Moiseev

Long-baseline interferometry (LBI) is used to reconstruct the image of faint thermal objects. The image quality, for a given exposure time, is in general limited by a low signal-to-noise ratio (SNR). We show theoretically that a significant…

The Planet Formation Imager (PFI) is a near- and mid-infrared interferometer project with the driving science goal of imaging directly the key stages of planet formation, including the young proto-planets themselves. Here, we will present…

Instrumentation and Methods for Astrophysics · Physics 2018-08-01 John D. Monnier , Michael J. Ireland , Stefan Kraus , the PFI Science , Technical Working Groups

The Low Frequency Array (LOFAR) is the only existing radio interferometer able to observe at ultra-low frequencies (<100 MHz) with high resolution (<15") and high sensitivity (<1 mJy/beam). To exploit these capabilities, the LOFAR Surveys…

The Large Observatory for X-ray Timing (LOFT) is one of the four candidate ESA M3 missions considered for launch in the 2022 time-frame. It is specifically designed to perform fast X-ray timing and probe the status of the matter near black…

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 time near infrared (NIR) integral field spectroscopy at the…

Astrophysics · Physics 2015-06-24 S. Mengel , F. Eisenhauer , M. Tecza , N. Thatte , C. Roehrle , K. Bickert , J. Schreiber

Time-Delay Interferometry (TDI) is the data processing technique that cancels the large laser phase fluctuations affecting the one-way Doppler measurements made by unequal-arm space-based gravitational wave interferometers. In a previous…

General Relativity and Quantum Cosmology · Physics 2023-07-18 Massimo Tinto , Sanjeev Dhurandhar

Precision radial velocity (RV) spectrographs that use adaptive optics (AO) show promise to advance telescope observing capabilities beyond those of seeing-limited designs. We are building a spectrograph for the Large Binocular Telescope…

The International LOFAR Telescope (ILT) is a pan-European radio interferometer with baselines up to 2,000 km. This provides sub-arcsecond resolution at frequencies of <200 MHz. Since starting science operations in 2012, the ILT has carried…

Hot exozodiacal dust emission was detected in recent surveys around two dozen main sequence stars at distances of less than $1\,\text{au}$ using H and K band interferometry. Due to the high contrast as well as the small angular distance…

Solar and Stellar Astrophysics · Physics 2017-11-15 Florian Kirchschlager , Sebastian Wolf , Robert Brunngräber , Alexis Matter , Alexander V. Krivov , Aaron Labdon

Large Scale Structures (LSS) in the universe can be traced using the neutral atomic hydrogen HI through its 21cm emission. Such a 3D matter distribution map can be used to test the Cosmological model and to constrain the Dark Energy…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 R. Ansari , J. E. Campagne , P. Colom , J. M. Le Goff , C. Magneville , J. M. Martin , M. Moniez , J. Rich , C. Yèche

The Large Observatory For x-ray Timing (LOFT) was studied within ESA M3 Cosmic Vision framework and participated in the final down-selection for a launch slot in 2022-2024. Thanks to the unprecedented combination of effective area and…

Instrumentation and Methods for Astrophysics · Physics 2014-09-01 M. Feroci , J. W. den Herder , E. Bozzo , D. Barret , S. Brandt , M. Hernanz , M. van der Klis , M. Pohl , A. Santangelo , L. Stella , A. Watts , J. Wilms , S. Zane , M. Ahangarianabhari , C. Albertus , M. Alford , A. Alpar , D. Altamirano , L. Alvarez , L. Amati , C. Amoros , N. Andersson , A. Antonelli , A. Argan , R. Artigue , B. Artigues , J. -L. Atteia , P. Azzarello , P. Bakala , G. Baldazzi , S. Balman , M. Barbera , C. van Baren , S. Bhattacharyya , A. Baykal , T. Belloni , F. Bernardini , G. Bertuccio , S. Bianchi , A. Bianchini , P. Binko , P. Blay , F. Bocchino , P. Bodin , I. Bombaci , J. -M. Bonnet Bidaud , S. Boutloukos , L. Bradley , J. Braga , E. Brown , N. Bucciantini , L. Burderi , M. Burgay , M. Bursa , C. Budtz-Jørgensen , E. Cackett , F. R. Cadoux , P. Cais , G. A. Caliandro , R. Campana , S. Campana , F. Capitanio , J. Casares , P. Casella , A. J. Castro-Tirado , E. Cavazzuti , P. Cerda-Duran , D. Chakrabarty , F. Château , J. Chenevez , J. Coker , R. Cole , A. Collura , R. Cornelisse , T. Courvoisier , A. Cros , A. Cumming , G. Cusumano , A. D'Aì , V. D'Elia , E. Del Monte , A. De Luca , D. De Martino , J. P. C. Dercksen , M. De Pasquale , A. De Rosa , M. Del Santo , S. Di Cosimo , S. Diebold , T. Di Salvo , I. Donnarumma , A. Drago , M. Durant , D. Emmanoulopoulos , M. H. Erkut , P. Esposito , Y. Evangelista , A. Fabian , M. Falanga , Y. Favre , C. Feldman , V. Ferrari , C. Ferrigno , M. Finger , M. H. Finger , G. W. Fraser , M. Frericks , F. Fuschino , M. Gabler , D. K. Galloway , J. L. Galvez Sanchez , E. Garcia-Berro , B. Gendre , S. Gezari , A. B. Giles , M. Gilfanov , P. Giommi , G. Giovannini , M. Giroletti , E. Gogus , A. Goldwurm , K. Goluchová , D. Götz , C. Gouiffes , M. Grassi , P. Groot , M. Gschwender , L. Gualtieri , C. Guidorzi , L. Guy , D. Haas , P. Haensel , M. Hailey , F. Hansen , D. H. Hartmann , C. A. Haswell , K. Hebeler , A. Heger , W. Hermsen , J. Homan , A. Hornstrup , R. Hudec , J. Huovelin , A. Ingram , J. J. M. in't Zand , G. Israel , K. Iwasawa , L. Izzo , H. M. Jacobs , F. Jetter , T. Johannsen , H. M. Jacobs , P. Jonker , J. Josè , P. Kaaret , G. Kanbach , V. Karas , D. Karelin , D. Kataria , L. Keek , T. Kennedy , D. Klochkov , W. Kluzniak , K. Kokkotas , S. Korpela , C. Kouveliotou , I. Kreykenbohm , L. M. Kuiper , I. Kuvvetli , C. Labanti , D. Lai , F. K. Lamb , P. P. Laubert , F. Lebrun , D. Lin , D. Linder , G. Lodato , F. Longo , N. Lund , T. J. Maccarone , D. Macera , S. Maestre , S. Mahmoodifar , D. Maier , P. Malcovati , I. Mandel , V. Mangano , A. Manousakis , M. Marisaldi , A. Markowitz , A. Martindale , G. Matt , I. M. McHardy , A. Melatos , M. Mendez , S. Mereghetti , M. Michalska , S. Migliari , R. Mignani , M. C. Miller , J. M. Miller , T. Mineo , G. Miniutti , S. Morsink , C. Motch , S. Motta , M. Mouchet , G. Mouret , J. Mulačová , F. Muleri , T. Muñoz-Darias , I. Negueruela , J. Neilsen , A. J. Norton , M. Nowak , P. O'Brien , P. E. H. Olsen , M. Orienti , M. Orio , M. Orlandini , P. Orleanski , J. P. Osborne , R. Osten , F. Ozel , L. Pacciani , M. Paolillo , A. Papitto , J. M. Paredes , A. Patruno , B. Paul , E. Perinati , A. Pellizzoni , A. V. Penacchioni , M. A. Perez , V. Petracek , C. Pittori , J. Pons , J. Portell , A. Possenti , J. Poutanen , M. Prakash , P. Le Provost , D. Psaltis , D. Rambaud , P. Ramon , G. Ramsay , M. Rapisarda , A. Rachevski , I. Rashevskaya , P. S. Ray , N. Rea , S. Reddy , P. Reig , M. Reina Aranda , R. Remillard , C. Reynolds , L. Rezzolla , M. Ribo , R. de la Rie , A. Riggio , A. Rios , P. Rodríguez- Gil , J. Rodriguez , R. Rohlfs , P. Romano , E. M. R. Rossi , A. Rozanska , A. Rousseau , F. Ryde , L. Sabau-Graziati , G. Sala , R. Salvaterra , A. Sanna , J. Sandberg , S. Scaringi , S. Schanne , J. Schee , C. Schmid , S. Shore , R. Schneider , A. Schwenk , A. D. Schwope , J. -Y. Seyler , A. Shearer , A. Smith , D. M. Smith , P. J. Smith , V. Sochora , P. Soffitta , P. Soleri , A. Spencer , B. Stappers , A. W. Steiner , N. Stergioulas , G. Stratta , T. E. Strohmayer , Z. Stuchlik , S. Suchy , V. Sulemainov , T. Takahashi , F. Tamburini , T. Tauris , C. Tenzer , L. Tolos , F. Tombesi , J. Tomsick , G. Torok , J. M. Torrejon , D. F. Torres , A. Tramacere , A. Trois , R. Turolla , S. Turriziani , P. Uter , P. Uttley , A. Vacchi , P. Varniere , S. Vaughan , S. Vercellone , V. Vrba , D. Walton , S. Watanabe , R. Wawrzaszek , N. Webb , N. Weinberg , H. Wende , P. Wheatley , R. Wijers , R. Wijnands , M. Wille , C. A. Wilson-Hodge , B. Winter , K. Wood , G. Zampa , N. Zampa , L. Zampieri , L. Zdunik , A. Zdziarski , B. Zhang , F. Zwart , M. Ayre , T. Boenke , C. Corral van Damme , E. Kuulkers , D. Lumb

The VLTI Spectro Imager (VSI) was proposed as a second-generation instrument of the Very Large Telescope Interferometer providing the ESO community with spectrally-resolved, near-infrared images at angular resolutions down to 1.1…