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20242026
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5 papers · 1 filter

astro-ph.GA2025

Biases in galaxy spectral analysis from strong lensing differential magnification effect and correction methods

Wenshuo Xu, Dandan Xu, Xinzhong Er +1

Strong gravitational lensing has significantly advanced the study of high-redshift galaxies, but the differential magnification effect inevitably introduces biases in the spectral…

astro-ph.GA2024

Photometric properties of classical bulge and pseudo-bulge galaxies at

Jia Hu, Qifan Cui, Lan Wang +2

We compare the photometric properties and specific star formation rate (sSFR) of classical and pseudo-bulge galaxies with at , select…

astro-ph.GA2024

Resolved properties of classical bulge and pseudo-bulge galaxies

Jia Hu, Lan Wang, Junqiang Ge +2

We compare properties of classical and pseudo-bulges and properties of their hosting galaxies selected from the MaNGA survey. Bulge types are identified based on the S$\mathrm{\acu…

astro-ph.GA2024

A strong He II 1640 emitter with extremely blue UV spectral slope at : presence of Pop III stars?

Xin Wang, Cheng Cheng, Junqiang Ge +12

Cosmic hydrogen reionization and cosmic production of first metals are major phase transitions of the universe occurring during the first billion years after the Big Bang, however…

astro-ph.GA2024

Are High Massive Blue Spiral Galaxies Rejuvenated Systems?

Cai-Na Hao, Xiaoyang Xia, Yong Shi +5

Quiescent galaxies generally possess denser cores than star-forming galaxies with similar mass. As a measurement of the core density, the central stellar mass surface density withi…