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We present a precise ground-based optical transmission spectrum of the hot-Saturn HATS-5b ($T_{eq} =1025$ K), obtained as part of the ACCESS survey with the IMACS multi-object spectrograph mounted on the Magellan/Baade Telescope. Our…

The Challan instrument is a solar full-disk imaging spectroscopic telescope planned to be installed at three sites with a 120-degree longitudinal difference, enabling continuous 24-hour observations of the Sun. It will take data every 2.5…

The VLT Survey Telescope (VST) ATLAS is an optical ugriz survey aiming to cover ~4700deg^2 of the Southern sky to similar depths as the Sloan Digital Sky Survey (SDSS). From reduced images and object catalogues provided by the Cambridge…

In order to characterize magnetic-field (B) tunable THz plasmonic detectors, spectroscopy experiments were carried out at liquid helium temperatures and high magnetic fields on devices fabricated on a high electron mobility GaAs/AlGaAs…

Mesoscale and Nanoscale Physics · Physics 2014-06-09 M. Białek , A. M. Witowski , M. Orlita , M. Potemski , M. Czapkiewicz , J. Wróbel , V. Umansky , M. Grynberg , J. Łusakowski

The LAT instrument on the Fermi Gamma-Ray Space Telescope is performing an all-sky survey from 20 MeV to 300 GeV with unprecedented statistics and angular resolution. This is providing a wealth of new information on the non-thermal emission…

High Energy Astrophysical Phenomena · Physics 2019-08-14 A. W. Strong

We present our second paper on the Allen Telescope Array Twenty-centimeter Survey (ATATS), a multi-epoch, ~700 sq. deg. radio image and catalog at 1.4 GHz. The survey is designed to detect rare, bright transients as well as to commission…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Steve Croft , Geoffrey C. Bower , Garrett Keating , Casey Law , David Whysong , Peter K. G. Williams , Melvyn Wright

The Huntsman Telescope, located at Siding Spring Observatory in Australia, is a system of ten telephoto Canon lenses designed for low surface brightness imaging in the Southern sky. Based upon the Dragonfly Telephoto Array, the refractive…

The Low Frequency Array (LOFAR) Two-metre Sky Survey (LoTSS) is a sensitive, high-resolution 120-168 MHz survey split across multiple tiers over the northern sky. The first LoTSS Deep Fields data release consists of deep radio continuum…

The ANTARES telescope is well-suited to detect neutrinos produced in astrophysical transient sources as it can observe a full hemisphere of the sky at all times with a high duty cycle. Radio-loud active galactic nuclei with jets pointing…

High Energy Astrophysical Phenomena · Physics 2015-06-03 S. Adrián-Martínez , I. Al Samarai , A. Albert , M. André , M. Anghinolfi , G. Anton , S. Anvar , M. Ardid , T. Astraatmadja , J-J. Aubert , B. Baret , S. Basa , V. Bertin , S. Biagi , C. Bigongiari , C. Bogazzi , M. Bou-Cabo , B. Bouhou , M. C. Bouwhuis , J. Brunner , J. Busto , F. Camarena , A. Capone , C. Cârloganu , G. Carminati , J. Carr , S. Cecchini , Z. Charif , Ph. Charvis , T. Chiarusi , M. Circella , L. Core , H. Costantini , P. Coyle , A. Creusot , C. Curtil , G. De Bonis , M. P. Decowski , I. Dekeyser , A. Deschamps , C. Distefano , C. Donzaud , D. Dornic , Q. Dorosti , D. Drouhin , T. Eberl , U. Emanuele , A. Enzenhöfer , J-P. Ernenwein , S. Escoffier , K. Fehn , P. Fermani , M. Ferri , S. Ferry , V. Flaminio , F. Folger , U. Fritsch , J-L. Fuda , S. Galatà , P. Gay , K. Geyer , G. Giacomelli , V. Giordano , J. P. Gómez-González , K. Graf , G. Guillard , G. Halladjian , G. Hallewell , H. van Haren , J. Hartman , A. J. Heijboer , Y. Hello , J. J. Hernández-Rey , B. Herold , J. Hößl , C. C. Hsu , M. de Jong , M. Kadler , O. Kalekin , A. Kappes , U. Katz , O. Kavatsyuk , P. Kooijman , C. Kopper , A. Kouchner , I. Kreykenbohm , V. Kulikovskiy , R. Lahmann , G. Lambard , G. Larosa , D. Lattuada , D. Lefèvre , G. Lim , D. Lo Presti , H. Loehner , S. Loucatos , F. Louis , S. Mangano , M. Marcelin , A. Margiotta , J. A. Martínez-Mora , A. Meli , T. Montaruli , N. Morganti , L. Moscoso , H. Motz , M. Neff , E. Nezri , D. Palioselitis , G. E. Păvălaş , K. Payet , P. Payre , J. Petrovic , P. Piattelli , N. Picot-Clemente , V. Popa , T. Pradier , E. Presani , C. Racca , C. Reed , G. Riccobene , C. Richardt , R. Richter , C. Rivière , A. Robert , K. Roensch , A. Rostovtsev , J. Ruiz-Rivas , M. Rujoiu , G. V. Russo , F. Salesa , D. F. E. Samtleben , P. Sapienza , F. Schöck , J-P. Schuller , F. Schüssler , T. Seitz , R. Shanidze , F. Simeone , A. Spies , M. Spurio , J. M. Steijger , Th. Stolarczyk , A. Sánchez-Losa , M. Taiuti , C. Tamburini , S. Toscano , B. Vallage , C. Vallée , V. Van Elewyck , G. Vannoni , M. Vecchi , P. Vernin , E. Visser , S. Wagner , G. Wijnker , J. Wilms , E. de Wolf , H. Yepes , D. Zaborov , J. D. Zornoza , J. Zúñiga

We are proposing a new spectrograph (ATLAS) which would revolutionise intermediate-dispersion observations at the AAT. Based on the new technology of Volume Phase Holographic gratings, and using transmission optics, ATLAS offers high…

Astrophysics · Physics 2015-06-24 J. G. Robertson , K. Taylor , I. K. Baldry , P. R. Gillingham , S. C. Barden

The Solar Submillimeter Telescope (SST) is an unique instrument that has been observing the Sun daily since 2001 bringing a wealth of information and raising new questions about the particle acceleration and transport, and emission…

Instrumentation and Methods for Astrophysics · Physics 2023-07-17 C. Guillermo Giménez de Castro , Jean-Pierre Raulin , Adriana Valio , Emilia Correia , Paulo J. A. Simoes , Sergio Szpigel

We describe a system being developed for measuring the shapes of the mirrors of the Fred Young Submillimeter Telescope (FYST), now under construction for the CCAT Observatory. "Holographic" antenna-measuring techniques are an efficient and…

Instrumentation and Methods for Astrophysics · Physics 2021-03-16 Xiaodong Ren , Pablo Astudillo , Urs U. Graf , Richard E. Hills , Sebastian Jorquera , Bojan Nikolic , Stephen C. Parshley , Nicolás Reyes , Lars Weikert

We present the design and the prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T), which can autonomously measure scattering polarization signals on a daily basis with large sensitivity and accuracy. Its data will be used…

Instrumentation and Methods for Astrophysics · Physics 2009-03-17 Frans Snik , Radek Melich , Christoph Keller

LARS is an Absolute Reference Spectrograph designed for ultra-precise solar observations. The high-resolution echelle spectrograph of the Vacuum Tower Telescope is supported by a state-of-the-art laser frequency comb to calibrate the solar…

Instrumentation and Methods for Astrophysics · Physics 2017-11-01 J. Loehner-Boettcher , W. Schmidt , H. -P. Doerr , T. Kentischer , T. Steinmetz , R. A. Probst , R. Holzwarth

Observing the ultraviolet (UV) sky for time-variable phenomena is one of the many exciting science goals that can be achieved by a relatively small aperture telescope in space. The Near Ultraviolet Transient Surveyor (NUTS) is a wide-field…

We have built and tested a compact, low-cost, but very-high-performance astronomical polarimeter based on a continuously rotating half-wave plate and a high-speed imaging detector. The polarimeter is suitable for small telescopes up to ~1 m…

Instrumentation and Methods for Astrophysics · Physics 2023-02-08 Jeremy Bailey , Daniel V. Cotton , Ain De Horta , Lucyna Kedziora-Chudczer , Om Shastri

Increase in the Balmer continuum radiation during solar flares was predicted by various authors but never firmly confirmed observationally using ground-based slit spectrographs. Here we describe a new post-focal instrument - Image Selector…

Solar and Stellar Astrophysics · Physics 2016-02-02 P. Kotrč , O. Procházka , P. Heinzel

We have developed an imaging Fourier transform spectrometer (FTS) for space-based far-infrared astronomical observations. The FTS employs a newly developed photoconductive detector arrays with a capacitive trans-impedance amplifier, which…

The Solar Optical Telescope (SOT) aboard the Hinode satellite (formerly called Solar-B) consists of the Optical Telescope Assembly (OTA) and the Focal Plane Package (FPP). The OTA is a 50 cm diffraction-limited Gregorian telescope, and the…

Astrophysics · Physics 2009-11-13 S. Tsuneta

Attosecond transient absorption spectroscopy (ATAS) has emerged as a powerful technique within the field of attosecond science, combining extremely high temporal and excellent spectral resolution. So far, ATAS has been implemented in…