The Origins Space Telescope: mission concept overview

Leisawitz, David; Amatucci, Edward; Carter, R.; DiPirro, Michael; Flores, A.; Staguhn, Johannes; Wu, C.; Allen, Lori; Arenberg, Jonathan W.; Armus, L.; Battersby, Cara; Bauer, J. M.; Bell, Raymond M.; Beltran, P.; Benford, Dominic J.; Bergin, E.; Bradford, C. M.; Bradley, Damon; Burgarella, D.; Carey, Sean; Chi, D.; Cooray, Asantha; Corsetti, James A.; Beck, E. De; Denis, Kevin; Dewell, Larry; East, Matthew; Edgington, Samantha; Ennico, Kimberly; Fantano, Louis G.; Feller, G.; Folta, David; Fortney, Jonathan J.; Generie, J.; Gérin, M.; Granger, Zachary A.; Harpole, George; Harvey, K.; Helmich, Frank; Hilliard, L.; Howard, Joseph M.; Jacoby, Michael; Jamil, A.; Kataria, Tiffany; Knight, Scott; Knollenberg, Perry; Lightsey, Paul A.; Lipscy, Sarah; Mamajek, Eric E.; Martins, Gregory E.; Meixner, Margaret; Melnick, Gary J.; Milam, Stefanie N.; Mooney, Ted; Moseley, S. H.; Narayanan, Desika; Neff, Susan G.; Nguyen, Thanh Huy; Nordt, Alison; Olson, J. R.; Padgett, Deborah; Petach, Michael; Petro, Susanna; Pohner, John; Pontoppidan, K. M.; Pope, Alexandra; Ramspacher, D.; Roellig, Thomas L.; Sakon, Itsuki; Sandin, C.; Sandström, Karin; Scott, Douglas; Sheth, Kartik; Steeves, John; Stevenson, Kevin B.; Stokowski, L.; Stoneking, Eric; Su, Kate; Tajdaran, Kiarash; Tompkins, Steve; Vieira, J. D.; Webster, Cassandra; Wiedner, Martina C.; Wright, E. L.; Žmuidzinas, J.

doi:10.1117/12.2313823

Cited by 27 publications

(27 citation statements)

References 13 publications

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“…The Origins Survey Spectrometer (OSS) provides OST’s FIR spectroscopic capabilities and enables the execution of wide and deep surveys that will yield large statistical samples of galaxies up to high z . Two design concepts for OST are summarised by Leisawitz et al (2018), and the mission will be described in detail in a report to the US National Academies’ Decadal Survey in 2019. The OSS has six wide-band grating spectrometer modules, which combine to cover the full FIR spectral range (25–590 μm) simultaneously, with sensitivity close to the astronomical background limit, taking advantage of new far-IR detector array technologies.…”

Section: Introductionmentioning

confidence: 99%

Origins Space Telescope: Predictions for far-IR spectroscopic surveys

Bonato

Zotti

Leisawitz

et al. 2019

Publ. Astron. Soc. Aust.

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We illustrate the extraordinary potential of the (far-IR) Origins Survey Spectrometer (OSS) on board the Origins Space Telescope (OST) to address a variety of open issues on the co-evolution of galaxies and AGNs. We present predictions for blind surveys, each of 1000 h, with different mapped areas (a shallow survey covering an area of 10 deg 2 and a deep survey of 1 deg 2 ) and two different concepts of the OST/OSS: with a 5.9 m telescope (Concept 2, our reference configuration) and with a 9.1 m telescope (Concept 1, previous configuration). In 1000 h, surveys with the reference concept will detect from ∼ 1.9 × 10 6 to ∼ 8.7 × 10 6 lines from ∼ 4.8 × 10 5 -2.7 × 10 6 star-forming galaxies and from ∼ 1.4 × 10 4 to ∼ 3.8 × 10 4 lines from ∼ 1.3 × 10 4 -3.5 × 10 4 AGNs. The shallow survey will detect substantially more sources than the deep one; the advantage of the latter in pushing detections to lower luminosities/higher redshifts turns out to be quite limited. The OST/OSS will reach, in the same observing time, line fluxes more than one order of magnitude fainter than the SPICA/SMI and will cover a much broader redshift range. In particular it will detect tens of thousands of galaxies at z ≥ 5, beyond the reach of that instrument. The polycyclic aromatic hydrocarbons lines are potentially bright enough to allow the detection of hundreds of thousands of star-forming galaxies up to z ∼ 8.5, i.e. all the way through the re-ionization epoch. The proposed surveys will allow us to explore the galaxy-AGN co-evolution up to z ∼ 5.5 − 6 with very good statistics. OST Concept 1 does not offer significant advantages for the scientific goals presented here.

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Section: Introductionmentioning

confidence: 99%

Origins Space Telescope: Predictions for far-IR spectroscopic surveys

Bonato

Zotti

Leisawitz

et al. 2019

Publ. Astron. Soc. Aust.

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“…Mission Concept 2 for the OST study ( Figure 1) optimizes the engineering for the key science cases into a powerful and more economical observatory compared to Mission Concept 1. 5 The telescope has a JWST size collecting area, ~25 m 2 , and segmented with keystone shaped segments resulting in a circular aperture. 5,6,7 The telescope has a diffraction limit of 30 μm and covers the wavelength range of ~5 to ~620 μm.…”

Section: Ost Mission Concept 2 Overviewmentioning

confidence: 99%

“…5 The telescope has a JWST size collecting area, ~25 m 2 , and segmented with keystone shaped segments resulting in a circular aperture. 5,6,7 The telescope has a diffraction limit of 30 μm and covers the wavelength range of ~5 to ~620 μm. The telescope and instruments are kept cold at ~4 K and the specific instrument detectors are cooled to lower temperatures.…”

Section: Ost Mission Concept 2 Overviewmentioning

confidence: 99%

Overview of the Origins Space telescope: science drivers to observatory requirements

Meixner

Armus

Battersby

et al. 2018

Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave

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“…The planar, metamaterial optical coupling technologies being developed and reported here may directly enable the large, compact, and robust detector arrays required for future astrophysical experiments. This includes potential applicability to many far-IR projects currently in development or consideration, such as the long-wavelength components of the Origins Space Telescope (OST; formerly Far-IR Surveyor) [13], the Galactic Evolution Probe (GEP) [14], and the potential sub-orbital experiment BFORE [15].…”

Section: Introductionmentioning

confidence: 99%

Development of Flat Silicon-Based Mesh Lens Arrays for Millimeter and Sub-millimeter Wave Astronomy

et al. 2020

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The high sensitivity requirements set by future cosmic microwave background instruments are pushing the current technologies to produce highly performant focal plane arrays with thousands of detectors. The coupling of the detectors to the telescope optics is a challenging task. Current implemented solutions include phasedarray antenna-coupled detectors, platelet horn arrays, and lenslet-coupled planar antennas. There are also recent developments of flat graded-index lenses based on etched silicon. However, there are strong requirements in terms of electromagnetic performance, such as coupling efficiency and bandwidth, as well as requirements in terms of easy manufacturing and scalability, and it is very challenging to meet all these requirements with one of the above solutions. Here, we present a novel approach for producing flat metal-mesh lenslet arrays based on devices previously realized using the mesh-filter technology. We have now adapted the polypropylenebased mesh lens design to silicon substrates, thus providing a good mechanical match to the silicon-based detector arrays. The measured performance of prototype pixels operating at millimeter wavelengths is presented.

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The Origins Space Telescope: mission concept overview

Cited by 27 publications

References 13 publications

Origins Space Telescope: Predictions for far-IR spectroscopic surveys

Origins Space Telescope: Predictions for far-IR spectroscopic surveys

Overview of the Origins Space telescope: science drivers to observatory requirements

Development of Flat Silicon-Based Mesh Lens Arrays for Millimeter and Sub-millimeter Wave Astronomy

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