author={Thomas de Quincey},
  journal={The Works of Thomas De Quincey, Vol. 1: Writings, 1799–1820},
  • Thomas de Quincey
  • Published 1 January 2000
  • Physics
  • The Works of Thomas De Quincey, Vol. 1: Writings, 1799–1820
In supernova (SN) spectroscopy relatively little attention has been given to the properties of optically thick spectral lines in epochs following the photosphere’s recession. Most treatments and analyses of post-photospheric optical spectra of SNe assume that forbidden-line emission comprises most if not all spectral features. However, evidence exists that suggests that some spectra exhibit line profiles formed via optically thick resonance-scattering even months or years after the SN explosion… 
Multi-wavelength properties of AGN jets: some recent highlights
  • L. Costamante
  • Physics
    Proceedings of High Energy Phenomena in Relativistic Outflows VII — PoS(HEPRO VII)
  • 2020
Relativistic jets from Active Galactic Nuclei (AGN) are powerful sources of radiation at every wavelength, but particularly in gamma-rays. Multi-wavelength observations in the last decade, driven by
Enhanced lines and box-shaped features in the gamma-ray spectrum from annihilating dark matter in the NMSSM
We study spectral features in the gamma-ray emission from dark matter (DM) annihilation in the Next-to-Minimal Supersymmetric Standard Model (NMSSM), with either neutralino or right-handed (RH)
Galactic dark matter search via phenomenological astrophysics modeling
Previous searches for the γ-ray signatures of annihilating galactic dark matter used predefined spatial templates to describe the background of γ-ray emission from astrophysical processes like cosmic
Multimode black hole spectroscopy
The first two LIGO/Virgo observing runs have detected several black hole binary mergers. One of the most exciting prospects of future observing runs is the possibility to identify the remnants of
Radio line properties of axion dark matter conversion in neutron stars
Abstract Axions are well-motivated candidates for dark matter. Recently, much interest has focused on the detection of photons produced by the resonant conversion of axion dark matter in neutron
Confirmation of the Luminous Blue Variable Status of MWC 930
We present spectroscopic and photometric observations of the emission-line star MWC 930 (V446 Sct) during its long-term optical brightening in 2006–2013. Based on our earlier data we suggested that
In this dissertation spectral line formation in stellar atmospheres is explored, focusing on the interplay between convection, radiative transfer, and spectral line formation. For this purpose we use