Discovery of cycle-to-cycle modulated spectral line variability and velocity gradients in long-period Cepheids [PDF]
, 2016 This work reports the discovery of cycle-to-cycle modulated spectral line and atmospheric velocity gradient variability in long-period Cepheids based on 925 high-resolution optical spectra of $\ell$ Carinae (P $\sim$ 35.5 d) recorded during three heavy ...
R. Anderson
semanticscholar +1 more source
A representative sample of Be stars III: H band spectroscopy [PDF]
, 1999 We present H band (1.53 - 1.69 micron) spectra of 57 isolated Be stars of spectral types O9-B9 and luminosity classes III,IV & V. The HI Brackett (n-4) series is seen in emission from Br 11-18, and FeII emission is also apparent for a subset of those ...
Clark +19 more
core +5 more sources
Spectral Line Shapes in Plasmas II
Atoms, 2019 The Spectral Line Shapes in Plasmas (SLSP) code comparison workshop series [...]
Evgeny Stambulchik +3 more
doaj +1 more source
SPECTRAL LINE SURVEY TOWARD A MOLECULAR CLOUD IN IC10 [PDF]
, 2016 We have conducted a spectral line survey observation in the 3 mm band toward the low-metallicity dwarf galaxy IC10 with the 45 m radio telescope of the Nobeyama Radio Observatory to explore its chemical composition at a molecular-cloud scale (∼80 pc ...
Y. Nishimura +6 more
semanticscholar +1 more source
SOFIA: A flexible source finder for 3D spectral line data [PDF]
, 2015 We introduce SOFIA, a flexible software application for the detection and parametrization of sources in 3D spectral line data sets. SOFIA combines for the first time in a single piece of software a set of new source-finding and parametrization algorithms
P. Serra +11 more
semanticscholar +1 more source
The Spectral Line Shape of Exotic Nuclei [PDF]
, 1996 The quadrupole strength function of $^{28}O$ is calculated making use of the SIII interaction, within the framework of continuum-RPA and taking into account collisions among the nucleons (doorway coupling).
E. Vigezzi +12 more
core +2 more sources
Silhouette and spectral line profiles in the special modification of the Kerr black hole geometry generated by quintessential fields [PDF]
, 2016 We study optical effects in quintessential Kerr black hole spacetimes corresponding to the limiting case of the equation-of-state parameter $$\omega _{q}=-1/3$$ωq=-1/3 of the quintessence. In dependence on the dimensionless quintessential field parameter
J. Schee, Z. Stuchlík
semanticscholar +1 more source
LOFAR Cassiopeia A spectral line survey [PDF]
, 2016 We use the Low Frequency Array to perform a systematic high spectral resolution investigation of the low-frequency 33-78 MHz spectrum along the line of sight to Cassiopeia A.
J. Oonk +8 more
semanticscholar +1 more source
A case study of HF radar spectra and 630.0 nm auroral emission in the pre-midnight sector [PDF]
Annales Geophysicae, 2001 A comparison of HF radar backscatter observed by the CUTLASS Finland radar, meridian scanning photometer data from Longyearbyen, magnetic field variations from IMAGE stations, and particle precipitation measured by the DMSP F12 spacecraft is presented.
M. Lester +4 more
doaj +1 more source
Analysis of Infrared Spectral Radiance of O2 1.27 μm Band Based on Space-Based Limb Detection
Remote Sensing, 2023 The infrared spectral radiance of O2 is of great significance for space-based infrared detection. In this work, based on the demand for near-infrared spectral radiance of O2 limb detection, a method of spectral radiance calculation coupled with an ...
Jingyu Bai +4 more
doaj +1 more source