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Deriving Iodine-free Spectra for High-resolution Echelle Spectrographs
(Institute of Physics Publishing, 2019)
We describe a new method to derive clean, iodine-free spectra directly from observations acquired using high-resolution echelle spectrographs equipped with iodine cells. The main motivation to obtain iodine-free spectra ...
Stratospheric NO2 concentration determined by DOAS using compact spectrographs
(American Institute of Physics, 2008-05)
In this work we present the results for stratospheric NO2-total column concentration retrieved by DOAS (Differential Optical Absorption Spectroscopy) performed with compact spectrographs. The behavior for three different ...
Correcting the extended source calibration for the Herschel-SPIRE Fourier transform spectrometer
(Oxford University Press, 2018)
We describe an update to the Herschel-Spectral and Photometric Imaging Receiver (SPIRE) Fourier-transform spectrometer (FTS) calibration for extended sources, which incorporates a correction for the frequency-dependent ...
Optical design and prototype of a high resolution near IR spectrograph for astronomy.
(2019)
The search for extraterrestrial planets is an exciting current field of research. One of the
most efficient ways to detect exoplanets is through the measurement of the Radial Velocity
(RV) detection of Doppler shifts of ...
A FPGA-based fast converging digital adaptive filter for real time RFI mitigation on ground based radio telescopes
(IOP Publishing Ltd, 2018)
Radio Frequency Interference (RFI) is a growing concern in the radio astronomy community. Single-dish telescopes are particularly susceptible to RFI. Several methods have been developed to cope with RF-polluted environments, ...
A new algorithm for optimizing the wavelength coverage for spectroscopic studies: Spectral Wavelength Optimization Code (SWOC)
(OXFORD UNIV PRESS, 2016)
The past decade and a half has seen the design and execution of several ground-based spectroscopic surveys, both Galactic and Extragalactic. Additionally, new surveys are being designed that extend the boundaries of current ...
Ultra-pure digital sideband separation at sub-millimeter wavelengths
(EDP Sciences, 2015)
Context. Deep spectral-line surveys in the mm and sub-mm range can detect thousands of lines per band uncovering the rich chemistry
of molecular clouds, star forming regions and circumstellar envelopes, among others ...
Upper limits for mass and radius of objects around proxima cen from SPHERE/VLT
(Oxford University Press, 2017)
The recent discovery of an earth-like planet around Proxima Centauri has drawn much attention to this star and its environment. We performed a series of observations of Proxima Centauri using Spectro-Polarimetric High-contrast ...
Correcting the extended-source calibration for the herschel-SPIRE fourier-transform spectrometer
(Oxford University Press, 2018)
We describe an update to the Herschel-Spectral and Photometric Imaging Receiver (SPIRE)
Fourier-transform spectrometer (FTS) calibration for extended sources, which incorporates
a correction for the frequency-dependent ...
Sloan digital sky survey IV: mapping the milky way, nearby galaxies, and the distant universe
(IOP Publishing Ltd., 2017)
We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands ...