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Orbiting low frequency antennas for radio astronomy (OLFAR) that capture cosmic signals in the frequency range below 30MHz could provide valuable insights on our Universe. These wireless swarms of satellites form a connectivity graph that…

Signal Processing · Electrical Eng. & Systems 2026-05-07 Oliver Nagy , Manish Pandey , Georgios Exarchakos , Mark Bentum , Remco van der Hofstad

Sub-milliarcsecond imaging of nearby main sequence stars and binary systems can provide critical information on stellar phenomena such as rotational deformation, accretion effects, and the universality of starspot (sunspot) cycles.…

Instrumentation and Methods for Astrophysics · Physics 2018-01-22 Dave Kieda , Nolan Matthews

The Laser Ranging Interferometer (LRI) instrument on the Gravity Recovery and Climate Experiment (GRACE) Follow-On mission has provided the first laser interferometric range measurements between remote spacecraft, separated by approximately…

Instrumentation and Methods for Astrophysics · Physics 2019-07-23 Klaus Abich , Claus Braxmaier , Martin Gohlke , Josep Sanjuan , Alexander Abramovici , Brian Bachman Okihiro , David C. Barr , Maxime P. Bize , Michael J. Burke , Ken C. Clark , Glenn de Vine , Jeffrey A. Dickson , Serge Dubovitsky , William M. Folkner , Samuel Francis , Martin S. Gilbert , Mark Katsumura , William Klipstein , Kameron Larsen , Carl Christian Liebe , Jehhal Liu , Kirk McKenzie , Phillip R. Morton , Alexander T. Murray , Don J. Nguyen , Joshua A. Ravich , Daniel Shaddock , Robert Spero , Gary Spiers , Andrew Sutton , Joseph Trinh , Duo Wang , Rabi T. Wang , Brent Ware , Christopher Woodruff , Bengie Amparan , Mike A. Davis , James Howell , Micah Kruger , Lynette Lobmeyer , Robert Pierce , Gretchen Reavis , Michael Sileo , Michelle Stephens , Andreas Baatzsch , Christian Dahl , Katrin Dahl , Frank Gilles , Philipp Hager , Mark Herding , Marina Kaufer , Kolja Nicklaus , Kai Voss , Christina Bogan , Karsten Danzmann , Germán Fernández Barranco , Gerhard Heinzel , Alexander Koch , Christoph Mahrdt , Malte Misfeldt , Vitali Müller , Jens Reiche , Daniel Schütze , Benjamin Sheard , Gunnar Stede , Henry Wegener , Andreas Eckardt , Burghardt Guenther , Thomas Mangoldt , Bernd Zender , Thomas Ester , Frank Heine , Christoph Seiter , Steve Windisch , Reinhold Flatscher , Frank Flechtner , Nicolas Grossard , Jerome Hauden , Martin Hinz , Thomas Leikert , Marcus Zimmermann , Anton Lebeda , Arnold Lebeda

The Interface Region Imaging Spectrograph (IRIS) small explorer spacecraft provides simultaneous spectra and images of the photosphere, chromosphere, transition region, and corona with 0.33-0.4 arcsec spatial resolution, 2 s temporal…

Space interferometry is the inevitable endpoint of high angular resolution astrophysics, and a key technology that can be leveraged to analyse exoplanet formation and atmospheres with exceptional detail. However, the anticipated cost of…

Instrumentation and Methods for Astrophysics · Physics 2020-06-04 Jonah T. Hansen , Michael J. Ireland

Far-infrared observations provide crucial data for the investigation and characterisation of the properties of dusty material in the Interstellar Medium (ISM), since most of its energy is emitted between ~100 and 200 um. We present the…

We present the characterization and calibration of the Slow-Scan observation mode of the Far-Infrared Surveyor (FIS) onboard the AKARI satellite. The FIS, one of the two focal-plane instruments on AKARI, has four photometric bands between…

Gas cooling processes in the interstellar medium (ISM) are key to understanding how star-formation processes occur in galaxies. Far-infrared (FIR) fine-structure emission lines can be used as a tool to understand the gas conditions and…

Astrophysics of Galaxies · Physics 2023-12-06 Andrés Felipe Ramos Padilla , Lingyu Wang , F. F. S. van der Tak , Scott Trager

After decades of experimental projects and fast-paced technical advances, optical / infrared (O/IR) interferometry has seen a revolution in the last years. The GRAVITY instrument at the VLTI with four 8 meter telescopes reaches thousand…

Instrumentation and Methods for Astrophysics · Physics 2023-03-02 Frank Eisenhauer , John D. Monnier , Oliver Pfuhl

The question "How did we get here and what will the future bring?" captures the human imagination and the attention of the National Academy of Science's Astronomy and Astrophysics Survey Commitee (AASC). Fulfillment of this "fundamental…

Using kilometric arrays of air Cherenkov telescopes, intensity interferometry may increase the spatial resolution in optical astronomy by an order of magnitude, enabling images of rapidly rotating stars with structures in their…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 Dainis Dravins , Stephan LeBohec , Hannes Jensen , Paul D. Nuñez

The Mid Infra Red Instrument (MIRI) is one of the four instruments onboard the James Webb Space Telescope (JWST), providing imaging, coronagraphy and spectroscopy over the 5-28 microns band. To verify the optical performance of the…

IRIS is a near-infrared (0.84 to 2.4 microns) integral field spectrograph and wide-field imager being developed for first light with the Thirty Meter (TMT). It mounts to the advanced optics (AO) system NFIRAOS and has integrated…

We present a far-infrared all-sky atlas from a sensitive all-sky survey using the Japanese $AKARI$ satellite. The survey covers $> 99$% of the sky in four photometric bands centred at 65 $\mu$m, 90 $\mu$m, 140 $\mu$m, and 160 $\mu$m with…

An international group of scientists has begun planning for the Planet Formation Imager (PFI, www.planetformationimager.org), a next-generation infrared interferometer array with the primary goal of imaging the active phases of planet…

Instrumentation and Methods for Astrophysics · Physics 2019-07-26 John D. Monnier , 48 endorsers

The radio sky at lower frequencies, particularly below 20 MHz, is expected to be a combination of increasingly bright non-thermal emission and significant absorption from intervening thermal plasma. The sky maps at these frequencies cannot…

Instrumentation and Methods for Astrophysics · Physics 2021-09-01 Akhil Jaini , Avinash A. Deshpande , Sainath Bitragunta

Radio Frequency Interference (RFI) is emitted from various sources, terrestrial or orbital, and create a nuisance for ground-based 21cm experiments. In particular, single-dish 21cm intensity mapping experiments will be highly susceptible to…

We review the next generation Japanese infrared space mission, ASTRO-F. ASTRO-F will be the first survey of the entire sky at infrared wavelengths since the IRAS mission almost 20 years ago. ASTRO-F will survey the entire sky in 4…

The Single Aperture Far-InfraRed (SAFIR) Observatory's science goals are driven by the fact that the earliest stages of almost all phenomena in the universe are shrouded in absorption by and emission from cool dust and gas that emits…