The 11.2 $\mu$m emission of PAHs in astrophysical objects [PDF]
, 2015 The 11.2 $\mu$m emission band belongs to the family of the `Unidentified' Infrared (UIR) emission bands seen in many astronomical environments. In this work we present a theoretical interpretation of the band characteristics and profile variation for a ...
Candian, A., Sarre, P. J.
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On the massive young stellar object AFGL4176: High-spatial-resolution multi-wavelength observations and modeling [PDF]
, 2012 Deeply embedded and at distances of several kiloparsecs, massive young stellar objects (MYSOs) present numerous challenges for observation and study. In this work, we present spatially-resolved observations of one MYSO, AFGL 4176, together with survey ...
Boley, Paul +5 more
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Mueller Matrix Parameters for Radio Telescopes and their Observational Determination [PDF]
, 2001 Modern digital crosscorrelators permit the simultaneous measurement of all four Stokes parameters. However, the results must be calibrated to correct for the polarization transfer function of the receiving system. The transfer function for any device can
Carl Heiles +10 more
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Remote Sensing, 2023 The accurate estimation of ocean tide loading displacements is essential and necessary for geodesy, oceanic and geophysical studies. It is common knowledge that K1 and K2 tidal constituents estimated from Global Positioning System (GPS) observations are ...
Haidong Pan +4 more
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Colloquium: Comparison of Astrophysical and Terrestrial Frequency Standards [PDF]
, 2010 We have re-analyzed the stability of pulse arrival times from pulsars and white dwarfs using several analysis tools for measuring the noise characteristics of sampled time and frequency data.
Allan, D. W. +17 more
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Galactic rotation curves in modified gravity with non-minimal coupling between matter and geometry [PDF]
, 2010 We investigate the possibility that the behavior of the rotational velocities of test particles gravitating around galaxies can be explained in the framework of modified gravity models with non-minimal matter-geometry coupling. Generally, the dynamics of
H. A. Buchdahl +5 more
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Long-term analysis of clear nights using satellite data considering astronomical sites in western China [PDF]
Research in Astronomy and Astrophysics, 2020 Abstract A large ground-based optical/infrared telescope is being planned for a world-class astronomical site in China. The cloud-free night percentage is the primary meteorological consideration for evaluating candidate sites. The data from GMS and NOAA satellites and the MODIS instrument were utilized in this research, covering the ...
Zi-Huang Cao +39 more
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The radiative transfer equations for Compton scattering of polarized low frequency radiation on a hot electron gas [PDF]
, 1999 We deduce the equations that describe how polarized radiation is Comptonized by a hot electron gas. Low frequencies are considered, and the equations are expanded to second order in electron velocities.
Hansen, Frode K., Lilje, Per B.
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Astronomical observation tasks short-term scheduling using PDDS algorithm [PDF]
Astronomy and Computing, 2016 A concept of the ground-based optical astronomical observations efficiency is considered in this paper. We believe that a telescope efficiency can be increased by properly allocating observation tasks with respect to the current environment state and probability to obtain the data with required properties under the current conditions.
openaire +2 more sources
Automatic Classification of Spectra with IEF-SCNN
Universe, 2023 Telescopes such as the Large Sky Area Multi-Object Spectroscopic Telescope and the Sloan Digital Sky Survey have produced an extensive collection of spectra, challenging the feasibility of manual classification in terms of accuracy and efficiency.
Jingjing Wu +4 more
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