43 citations · 153 across the 13 of their papers we have counts for
4 papers · 1 filter
Polycyclic Aromatic Hydrocarbon Molecules and the 2175 Angstrom Interstellar Extinction Bump
Qi Lin, X. J. Yang, Aigen Li
The exact nature of the 2175 Angstrom extinction bump, the strongest spectroscopic absorption feature superimposed on the interstellar extinction curve, remains unknown ever since…
The 2175 Angstrom Interstellar Extinction Bump: Is the Wavelength Variable?
Qian Wang, X. J. Yang, Aigen Li
The most striking characteristics of the mysterious 2175 Angstrom extinction bump, the strongest spectroscopic absorption feature seen on the interstellar extinction curve, are the…
Deuterated Polycyclic Aromatic Hydrocarbons in the Interstellar Medium: The Aliphatic C--D Band Strengths
X. J. Yang, Aigen Li
Deuterium (D) was exclusively generated in the Big Bang and the standard Big Bang Nucleosynthesis (BBN) model predicts a primordial abundance of D/H~26ppm. As the Galaxy evolves, D…
Aliphatics and Aromatics in the Universe: The Pre-JWST Era
X. J. Yang, Aigen Li
The so-called "unidentified infrared emission" (UIE) features at 3.3, 6.2, 7.7, 8.6, and 11.3 micron ubiquitously seen in a wide variety of astrophysical regions are generally attr…