Random Access Addressing of MEMS Electrostatic Shutter Array for Multi-Object Astronomical Spectroscopy [PDF]
Micromachines, 2020 An extended version of cross-bar type addressing technique is developed for three-port electrostatic micro shutters arranged in an arrayed format. A microelectromechanical systems (MEMS) shutter blade suspended by a pair of torsion beams works as a ...
Xufeng Liu +4 more
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Characterization of Lenslet Arrays for Astronomical Spectroscopy [PDF]
Publications of the Astronomical Society of the Pacific, 2001 Microlens arrays are now widely used in a variety of astronomical instruments that require high performance. This paper describes the applications of microlenses in astronomical spectroscopy and discusses the necessary performance requirements. A variety of optical tests, including high dynamic range point-spread function measurements and determination
Deqing Ren +3 more
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X-RAY ASTRONOMICAL SPECTROSCOPY [PDF]
Exploring the Universe, 1980 The current status of the X-ray spectroscopy of celestial X-ray sources, ranging from nearby stars to distant quasars, is reviewed. Particular emphasis is placed on the role of such spectroscopy as a useful and unique tool in the elucidation of the physical parameters of the sources.
Stephen S. Holt
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Trend filtering – I. A modern statistical tool for time-domain astronomy and astronomical spectroscopy [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The problem of denoising a 1D signal possessing varying degrees of smoothness is ubiquitous in time-domain astronomy and astronomical spectroscopy. For example, in the time domain, an astronomical object may exhibit a smoothly varying intensity that is
C. Politsch +3 more
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Submillimeter-wave spectroscopy and the radio-astronomical investigation of propynethial (HC≡CCHS) [PDF]
Astronomy & Astrophysics, 2020 Context. The majority of sulfur-containing molecules detected in the interstellar medium (ISM) are analogs of oxygen-containing compounds. Propynal was detected in the ISM in 1988, hence propynethial, its sulfur derivative, is a good target for an ISM ...
L. Margulès +7 more
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Rotational spectroscopy and astronomical search for glutaronitrile [PDF]
Astronomy & Astrophysics, 2020 Context. Nitriles constitute almost 15% of the molecules observed in the interstellar medium (ISM), surprisingly only two dinitriles have been detected in the ISM so far. The lack of astronomical detections for dinitriles may be partly explained by the absence of laboratory rotational spectroscopic data. Aims.
C. Cabezas +4 more
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The missing conformer: A comprehensive rotational spectroscopy study and astronomical search of two conformers of methyl cyanoacetate [PDF]
Frontiers in Astronomy and Space Sciences, 2022 We performed a comprehensive investigation of methyl cyanoacetate (MCA) using high-resolution Fourier transform rotational spectroscopy. Two low energy conformers of MCA were observed in the vibrational ground state, in selected frequency regions from 2 ...
Gayatri Batra +9 more
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Astronomical spectroscopy with Skipper CCDs: first results from a Skipper CCD focal plane prototype at SIFS [PDF]
Astronomical Telescopes + InstrumentationWe present the first on-sky results from an ultra-low-readout-noise Skipper CCD focal plane prototype for the SOAR Integral Field Spectrograph (SIFS). The Skipper CCD focal plane consists of four 6k×1k, 15μm pixel, fully-depleted, p-channel devices that ...
E. Marrufo Villalpando +24 more
semanticscholar +6 more sources
Ultraviolet astronomical spectrograph calibration with laser frequency combs from nanophotonic lithium niobate waveguides [PDF]
Nature CommunicationsAstronomical precision spectroscopy underpins searches for life beyond Earth, direct observation of the expanding Universe and constraining the potential variability of physical constants on cosmological scales.
Markus Ludwig +23 more
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