681 citations · 1.2k across the 26 of their papers we have counts for
10 papers · 1 filter
Characterization of the commercial spectrograph system for astronomical observations: PIXIS 1300BX Camera and IsoPlane 320A Spectrograph
Jiwon Jang, Changsu Choi, Ho Seong Hwang +4
We present the result from a comprehensive laboratory and on-sky characterization of the commercial spectrograph system consisting of a PIXIS 1300BX charge-coupled device (CCD) cam…
A New Collision Avoidance Fiber Assignment Algorithm for Robotic Fiber Positioners in Multi-Object Spectroscopy
Minseong Kwon, Ho Seong Hwang, Jong Chul Lee +22
We present a new fiber assignment algorithm for a robotic fiber positioner system in multi-object spectroscopy. Modern fiber positioner systems typically have overlapping patrol re…
FIREBall-2: flight preparation of a proven balloon payload to image the intermediate redshift circumgalactic medium
Vincent Picouet, David Valls-Gabaud, Bruno Milliard +19
FIREBall-2 is a stratospheric balloon-borne 1-m telescope coupled to a UV multi-object slit spectrograph designed to map the faint UV emission surrounding z~0.7 galaxies and quasar…
The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA Derived Quantities, Data Visualization Tools and Stellar Library
D. S. Aguado, Romina Ahumada, Andres Almeida +230
Twenty years have passed since first light for the Sloan Digital Sky Survey (SDSS). Here, we release data taken by the fourth phase of SDSS (SDSS-IV) across its first three years o…
DOTIFS: fore-optics and calibration unit design
Haeun Chung, A. N. Ramaprakash, Pravin Khodade +5
We present fore-optics and calibration unit design of Devasthal Optical Telescope Integral Field Spectrograph (DOTIFS). DOTIFS fore-optics is designed to modify the focal ratio of…
DOTIFS: spectrograph optical and opto-mechanical design
Haeun Chung, A. N. Ramaprakash, Pravin Khodade +10
Devasthal Optical Telescope Integral Field Spectrograph (DOTIFS) is a new multi-Integral Field Unit (IFU) instrument, planned to be mounted on the 3.6m Devasthal optical telescope…
DOTIFS: a new multi-IFU optical spectrograph for the 3.6-m Devasthal optical telescope
Haeun Chung, A. N. Ramaprakash, Amitesh Omar +4
Devasthal Optical Telescope Integral Field Spectrograph (DOTIFS) is a new multi-object Integral Field Spectrograph (IFS) being designed and fabricated by the Inter-University Cente…
Noise Characterization of IUCAA Digital Sampling Array Controller (IDSAC)
Sabyasachi Chattopadhyay, A. N. Ramaprakash, Bhushan Joshi +11
IUCAA Digital Sampling Array Controller (IDSAC) is a flexible and generic yet powerful CCD controller which can handle a wide range of scientific detectors. Based on an easily scal…
Multiple rooks of chess - a generic integral field unit deployment technique
Sabyasachi Chattopadhyay, A. N. Ramaprakash, Pravin Khodade +4
A new field re-configuration technique, Multiple Rooks of Chess (MRC), for multiple deployable Integral Field Spectrographs has been developed. The method involves mechanical geome…
A new photolithography based technique to mass produce microlens+fibre based integralfield units (IFUs) for 2D spectroscopy
Sabyasachi Chattopadhyay, Vishal Joshi, A. N. Ramaprakash +3
We present a novel photolithography based technique to efficiently fabricate microlens-fibre based Integral Field Units (IFUs). These IFUs are being developed for Devasthal Optical…