Fiber fed spectrograph. 5-m aperture Sloan Telescope at Apache Point Observatory, the spectrographs produced more than 1. In this paper, we demonstrate a high-resolution and highly-multiplexed option for MOFS of MUST. 2 m telescope in India. 2-metre telescope located at ESO’s La Silla Observatory. Data obtained as part of the postcommissioning tests with PARAS show velocity precision better than 2 m s -1 over a period of several months on Sep 5, 2024 · Fiber-fed spectrographs are advanced instruments used in astronomy to channel light from celestial objects into a spectrograph via optical fibers, enhancing the capability to analyze multiple objects simultaneously. Jun 4, 2025 · Dive into the latest advancements in fiber-fed spectroscopy, exploring cutting-edge techniques and their impact on astronomical research. See full list on subarutelescope. Originally commissioned in Fall 1999 on the 2. 8 m telescope, which can quickly point to targets thanks to its lightness. The collimator is a spherical mirror with a 1264 mm radius of curvature. org The FEROS instrument is a state-of-the-art bench-mounted, high-resolution, environmentally controlled, astronomical Échelle spectrograph. FEROS can collect data with high resolution and in wavelengths from near-ultraviolet to infrared, covering the entire visible spectrum. The fibres run from the instrument adapter through the telescope and azimuth axis to the spectrograph enclosure. Aug 10, 2012 · We present the design and performance of the multi-object fiber spectrographs for the Sloan Digital Sky Survey (SDSS) and their upgrade for the Baryon Oscillation Spectroscopic Survey (BOSS). May 4, 2023 · In this work, we investigate the features of multi-mode fiber-fed VIPA spectrographs, both theoretically and experimentally, by comparing with those of the single-mode fiber input. The IFU is installed at a Nasmyth focus of the Seimei 3. Jul 12, 2013 · Acquisition of a large number of spectra simultaneously over a large field of view, with moderate resolution sufficient for accurate redshift measurements, naturally led to the choice of a fiber-fed multi-object spectrograph. The spectrographs are mounted onto the telescope and fiber-fed from a cartridge that couples the spectrograph collimator to the telescope focal surface. It is opertated at the European Southern Observatory (ESO) in La Silla, Chile, one of the best astronomical sites in the world. They help astronomers identify elements and compounds by spreading the light into its spectrum, thereby providing crucial data on the chemical composition, temperature, and radial . Feb 1, 2014 · We present spectrograph design details and initial radial velocity results from the PRL optical fiber-fed high-resolution cross-dispersed echelle spectrograph (PARAS), which has recently been commissioned at the Mount Abu 1. Jul 30, 2025 · We developed a fiber-type IFU to connect to an existing optical spectrograph, KOOLS-IFU. Being a permanently mounted instrument, FIES can be used at any time, also for short periods of time while other instruments are mounted. Jun 3, 2024 · The performance of the multi-object fiber-fed spectrograph (MOFS) plays a critical role for spectroscopic survey telescopes, directly influencing the realization of scientific aims. 5 million spectra for the SDSS and SDSS-II surveys, enabling FEROS (the Fiber-fed Extended Range Optical Spectrograph) is a spectrograph installed at the MPG/ESO 2. The combination of covering a large spectral range with a high resolving power has made FEROS Nov 15, 2021 · In this paper, we aim to design a multi-object and fiber-fed spectrograph (MOFFS) system with a working waveband ranging from 360 nm to 1100 nm to cover both near-infrared and visible regions.