26 citations · 31 across the 11 of their papers we have counts for
12 papers
Aromatics and Aliphatics in Local Star-Forming Galaxies as Probed by AKARI
Junhao Peng, Xuejuan Yang, Aigen Li
Polycyclic aromatic hydrocarbon (PAH) molecules are abundant and widespread in galaxies and their infrared (IR) emission traces star formation. PAH molecules in astronomical enviro…
Detection of Aliphatically Deuterated Aromatic Hydrocarbons in the Large Magellanic Cloud 30 Doradus Star-Forming Complex
Junhao Peng, Xuejuan Yang, Aigen Li
The unidentified infrared (IR) emission (UIE) bands at 3.3, 6.2, 7.7, 8.6, 11.3 and 12.7 micron are ubiquitously seen in a wide variety of astrophysical environments. While the exa…
On the Interstellar Extinction Curve toward HD 93222, A Sightline with an Exceedingly Narrow 2175 Angstrom Extinction Bump
Qian Wang, Aigen Li, Xuejuan Yang
The 2175 Angstrom extinction bump, the most prominent spectral feature superimposed on the interstellar extinction curve, is widely seen in the interstellar medium (ISM) of the Mil…
Deuterated Polycyclic Aromatic Hydrocarbons in the Interstellar Medium: Constraints from the Orion Bar as Observed by the James Webb Space Telescope
Xuejuan Yang, Aigen Li
The gas-phase abundances of deuterium (D) in the local interstellar medium (ISM) exhibit considerable regional variations. Particularly, in some regions the gas-phase D abundances…
What causes the ultraviolet extinction bump at the cosmic dawn?
Qi Li, Xuejuan Yang, Aigen Li
The enigmatic ultraviolet (UV) extinction bump at 2175 Angstrom, the strongest spectroscopic absorption feature superimposed on the interstellar extinction curve, has recently been…
Interstellar dust revealed by light from cosmic dawn
Xuejuan Yang, Aigen Li
The obscuration of light from a distant galaxy has raised the possibility that a type of carbon dust existed in the earliest epochs of the Universe -- challenging the idea that sta…
Unveiling the Aromatic and Aliphatic Universe at Redshifts 0.2--0.5 with JWST NIRCam/WFSS
Jianwei Lyu, Xuejuan Yang, Aigen Li +4
Utilizing deep NIRCam/WFSS data from JWST's FRESCO program, we spectroscopically survey the 3.3 aromatic and 3.4 aliphatic C--H stretching emission bands of polycyclic ar…
Gas-phase hydrogenation of large, astronomically relevant PAH cations
Lijun Hua, Xiaoyi Hu, Junfeng Zhen +1
To investigate the gas-phase hydrogenation processes of large, astronomically relevant cationic polycyclic aromatic hydrocarbon (PAH) molecules under the interstellar environments,…
Measurement of Interstellar Magnetization by Synchrotron Polarization Variance
Ning-Ning Guo, Jian-Fu Zhang, Hua-Ping Xiao +2
Since synchrotron polarization fluctuations are related to the fundamental properties of the magnetic field, we propose the polarization intensity variance to measure the Galactic…
Infrared Emission of Specific Polycyclic Aromatic Hydrocarbon Molecules: Indene
Kaijun Li, Aigen Li, Xuejuan Yang +1
Polycyclic aromatic hydrocarbon (PAH) molecules have long been suggested to be present in the interstellar medium (ISM). Nevertheless, despite their expected ubiquity and sustained…
Infrared Emission of Specific Polycyclic Aromatic Hydrocarbon Molecules: Cyanonaphthalenes
Kaijun Li, Aigen Li, Xuejuan Yang +1
The unidentified infrared emission (UIE) features at 3.3, 6.2, 7.7, 8.6, 11.3 and 12.7 micron are ubiquitously seen in a wide variety of astrophysical regions and commonly attribut…
Polycyclic Aromatic Hydrocarbons with Aliphatic Sidegroups: Intensity Scaling for the C-H Stretching Modes and Astrophysical Implications
Xuejuan Yang, Aigen Li, R. Glaser +1
The so-called unidentified infrared emission (UIE) features at 3.3, 6.2, 7.7, 8.6, and 11.3 m ubiquitously seen in a wide variety of astrophysical regions are generally attribut…