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We employ classical statistical methods of multivariate classification for the exploitation of the stellar content of the Hamburg/ESO objective prism survey (HES). In a simulation study we investigate the precision of a three-dimensional…

Astrophysics · Physics 2009-11-07 Norbert Christlieb , Lutz Wisotzki , Gerd Grasshoff

H.E.S.S. - the High Energy Stereoscopic System- is a new system of large atmospheric Cherenkov telescopes for GeV/TeV astronomy. Each of the four telescopes of 107 m^2 mirror area is equipped with a 960-pixel photomulitiplier-tube camera.…

Astrophysics · Physics 2023-06-21 H. E. S. S. Collaboration , : , F. Aharonian

We have designed and constructed a second-generation version of the Dispersed Fourier Transform Spectrograph, or dFTS. This instrument combines a spectral interferometer with a dispersive spectrograph to provide high-accuracy,…

Instrumentation and Methods for Astrophysics · Physics 2014-11-20 Bradford B. Behr , Arsen R. Hajian , Andrew T. Cenko , Marc Murison , Robert S. McMillan , Robert Hindsley , Jeff Meade

The Hectospec is a 300 optical fiber fed spectrograph commissioned at the MMT in the spring of 2004. A pair of high-speed six-axis robots move the 300 fiber buttons between observing configurations within ~300 s and to an accuracy ~25…

Arago is a concept of space mission submitted to the European Space Agency's M7 science program. It will target a number of science cases in stellar physics including the characterisation of star-planet interactions. The concept is based on…

Instrumentation and Methods for Astrophysics · Physics 2022-11-21 Eduard Muslimov , Coralie Neiner

Echelle spectrographs with their high resolution plays important role in determination of characteristics of stellar lines. Wide field of applications is focused mainly on the measurements of precise radial velocity applied in exoplanetary…

Instrumentation and Methods for Astrophysics · Physics 2016-02-16 Romana Grossová

The SuMIRe Prime Focus Spectrograph (PFS), developed for the 8-m class SUBARU telescope, will consist of four identical spectrographs, each receiving 600 fibers from a 2394 fiber robotic positioner at the telescope prime focus. Each…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 Sandrine Pascal , Sebastien Vives , Robert Barkhouser , James Gunn

As part of a study funded by NASA Headquarters, we are developing a Probe-class mission concept called the Cosmic Evolution Through UV Spectroscopy (CETUS). CETUS includes a 1.5-m aperture diameter telescope with a large field-of-view…

We present a detailed analysis of a very high resolution (R\approx 112,000) spectrum of the quasar HE 0515-4414 obtained using the High Accuracy Radial velocity Planet Searcher (HARPS) mounted on the ESO 3.6 m telescope at the La Silla…

The upcoming Chinese Space Station Telescope (CSST) slitless spectroscopic survey poses a challenge of flux calibration, which requires a large number of flux-standard stars. In this work, we design an uncertainty-aware residual attention…

Instrumentation and Methods for Astrophysics · Physics 2024-01-25 Lin Yang , Haibo Yuan , Fuqing Duan , Ruoyi Zhang , Bowen Huang , Kai Xiao , Shuai Xu , Jinming Zhang

Dedicated to spectroscopic and imaging observations of the ultraviolet sky, the World Space Observatory for Ultraviolet Project is a Russia led international collaboration presently involving also China, Germany, Italy, Spain and Ukraine.…

In fiber-based spectroscopy within telescopes, a prevailing limitation has been the necessity to align the fiber diameter with the telescope's seeing conditions, often characterized by the Full Width at Half Maximum of the point spread…

Instrumentation and Methods for Astrophysics · Physics 2024-06-25 Nitish Singh , S. Sriram , Bharat Kumar Yerra , Prasanna G. Deshmukh

At Argonne National Laboratory, we are developing hard X-ray (2 to 20 keV) Transition Edge Sensor (TES) arrays for beamline science. The significantly improved energy resolution provided by superconducting detectors compared to…

Instrumentation and Detectors · Physics 2021-06-02 T. Guruswamy , L. Gades , A. Miceli , U. Patel , O. Quaranta

Observations of binary systems obtained recently with the High Energy Stereoscopic System (H.E.S.S) of Cherenkov telescopes are reported. The outcomes of a detailed observation campaign on PSR B1259-63 during its periastron passage in 2014…

High Energy Astrophysical Phenomena · Physics 2019-08-14 P. Bordas , G. Dubus , P. Eger , J. -P. Ernenwein , H. Laffon , C. Mariaud , T. Murach , M. de Naurois , C. Romoli , F. Schüssler , R. Zanin

SPHERES (SPectrometer with High Energy RESolution) is a third-generation neutron backscattering spectrometer, located at the 20 MW German neutron source FRM II and operated by the Juelich Centre for Neutron Science. It offers an energy…

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…

Instrumentation developments in electron energy-loss spectroscopy (EELS) in the scanning transmission electron microscope (STEM) one decade ago paved the way for combining milli-electronvolt energy resolution in spectroscopy with…

Mesoscale and Nanoscale Physics · Physics 2024-10-15 Benedikt Haas , Christoph T. Koch , Peter Rez

Single-shot terahertz (THz) spectroscopy probes sub-picosecond, non-repetitive events by combining the advantages of laser absorption techniques with the phase-sensitive detection of interferometric methods. However, its usage as a…

Optics · Physics 2025-01-07 Charan R. Nallapareddy , Thomas C. Underwood

CUBES is the Cassegrain U-Band Efficient Spectrograph, a high-efficiency instrument operating in the UV spectral range between 300nm and 400nm with a resolution not less than 20000. CUBES is to be installed at a Cassegrain focus of the Very…

Instrumentation and Methods for Astrophysics · Physics 2022-03-30 U. D. Zeitner , H. Dekker , F. Burmeister , T. Flügel-Paul , A. Bianco , A. Zanutta
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