Results 1 to 10 of about 16,837,468 (303)
SensorsHigh-resolution spectroscopy employing spatial heterodyne spectrographs (SHS) holds significant promise for forthcoming space missions, building upon its established track record in science applications.
Ayan Sahoo +3 more
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High‐fidelity spectroscopy at the highest resolutions [PDF]
Astronomische Nachrichten, 2010 AbstractHigh‐fidelity spectroscopy presents challenges for both observations and in designing instruments. High‐resolution and high‐accuracy spectra are required for verifying hydrodynamic stellar atmospheres and for resolving intergalactic absorption‐line structures in quasars.
openaire +2 more sources
SDSS-V Milky Way Mapper (MWM): ASPCAP Stellar Parameters and Abundances in SDSS-V Data Release 19
The Astronomical JournalThe goal of this paper is to describe the science verification of Milky Way Mapper (MWM) APOGEE Stellar Parameter and Chemical Abundances Pipeline (ASPCAP) data products published in Data Release 19 (DR19) of the fifth phase of the Sloan Digital Sky ...
Szabolcs Mészáros +27 more
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High-Resolution Localized NMR Spectroscopy Based on Hadamard-Encoding
Chinese Journal of Magnetic Resonance, 2020 Nuclear magnetic resonance (NMR) is a non-invasive technology which has been widely used in chemical, biological and medical researches. This paper presents a new NMR pulse sequence based on Hadamard spatial encoding and intermolecular single-quantum ...
KE Han-ping, CAI Hong-hao
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LiYF4:Ho crystal in a magnetic field: high resolution optical spectroscopy
EPJ Web of Conferences, 2017 Low-temperature high-resolution optical spectra of LiYF4:Ho in an external magnetic field H are presented. A field-dependent transformation of the hyperfine structure of holmium spectral lines is studied for the cases H||c and H┴c.
Boldyrev K.N., Popova M.N.
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Physical Review Research, 2023 We report on photoassociation spectroscopy probing the c^{3}Σ_{1}^{+} potential of the bialkali NaCs molecule, identifying 11 vibrational lines between v^{′}=0 and v^{′}=25 of the excited c^{3}Σ_{1}^{+} potential and fitting their rotational and ...
Lewis R. B. Picard +10 more
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Calibrating the Instrumental Drift in MAROON-X Using an Ensemble Analysis
The Astronomical JournalMAROON-X is a state-of-the-art extreme-precision radial velocity spectrograph deployed on the 8.1 m Gemini-N telescope on Maunakea, Hawai’i. Using a stabilized Fabry–Pérot etalon for wavelength and drift calibration, MAROON-X has achieved a short-term ...
Ritvik Basant +9 more
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High-Resolution Vacuum Ultraviolet Photoelectron Spectroscopy
CHIMIA, 2001 The development of narrow bandwidth tunable laser systems in the vacuum ultraviolet region of the electromagnetic spectrum and of new experimental methods has recently enabled a significant improvement in the resolution that can be achieved by ...
Urs Hollenstein +9 more
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The Astrophysical JournalThe modeling of stellar spectra is pervasive in astronomy. Conventionally, the shapes of absorption lines are modeled by convolving thermal profiles (computed given some model stellar atmosphere and line list) with broadening kernels intended to account ...
Michael L. Palumbo III
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κ Andromedae b Is a Fast Rotator from KPIC High-resolution Spectroscopy
The Astronomical JournalWe used the Keck Planet Imager and Characterizer to obtain high-resolution ( R ∼ 35,000) K -band spectra of κ Andromedae b, a planetary-mass companion orbiting the B9V star, κ Andromedae A. We characterized its spin, radial velocity, and bulk atmospheric
Evan C. Morris +26 more
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