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astro-ph.GA2026

Identifying the principal mechanism of star formation feedback

Chong Li, Rouyu Li, Keping Qiu +27

Feedback from massive stars regulates the formation of next-generation stars and planets and thus shapes the evolution of galaxies, yet observational evidence capable of determinin…

astro-ph.GA2026

Supernova origin of galactic turbulence revealed by superbubbles

Fanyi Meng, Chao-Wei Tsai, Jingwen Wu +13

Supernovae (SNe) are among the leading candidates for powering galactic-scale turbulence. SNe drive expanding shells of neutral atomic hydrogen (HI) known as superbubbles. Due to t…

astro-ph.GA2026

Local constraints on alcohol--thioalcohol analogs in G35.2N

Xuefang Xu, Shanghuo Li, Qian Gou +6

The chemistry of sulfur-bearing complex organic molecules in dense star-forming environments remains uncertain, partly because the dominant sulfur reservoirs in dense gas and ices…

astro-ph.GA2026

Magnetic Fields in Massive Star-forming Regions (MagMaR). IX. Radiative Torque Alignment and Disruption in NGC6334I

Vineet Rawat, Thiem Hoang, Patricio Sanhueza +18

Intense radiation from high-mass stars is expected to significantly affect dust grain alignment and evolution through RAdiative Torques (RATs). We investigate this effect in a mass…

astro-ph.GA2026

Correlation between the two-armed spiral in the -- plane and moving groups

Yan Xu, Chao Liu, Chengdong Li +5

We use a cross-matched sample of 3.7 million stars from Gaia DR3 and LAMOST DR7 to investigate the velocity substructures in the Milky Way disk. The median radial velocity as…

astro-ph.GA2026

A new model of quasar mass evolution

Z. Li, M. Zhang, Q. -H. Peng +1

Magnetic monopoles have been a trending topic among physicists and astronomers since the 1930s. Researchers have been working hard to find evidence of magnetic monopoles in laborat…

astro-ph.GA2026★ 2 cited

Baryonic mass budgets in the central regions of the Bullet Cluster and their consistency with strong lensing in MOND

Dong Zhang, Hosein Haghi, Elena Asencio +8

Strong lensing observations of the Bullet Cluster have traditionally been regarded as strong evidence for dark matter and a major challenge to Milgromian dynamics (MOND). The offse…

astro-ph.GA2026

Satellite quenching by radio jets of central galaxies in galaxy groups

Yijun Wang, Tao Wang, Dingyi Zhao +9

Feedback from active galactic nuclei (AGN) is now recognized as a key component of galaxy formation models. It plays a central role in regulating the growth and quenching of galaxi…

astro-ph.GA2026

The FAST Hundred-Deg HI Deep (HD) Survey: Early Results from the Pilot Survey

Chen Xu, Yingjie Jing, Jie Wang +26

The Hundred-deg HI Deep (HD) survey carried out with the Five-hundred-meter Aperture Spherical Telescope (FAST) is planned to map a contiguous region within the DESI DR1 fo…

astro-ph.GA2026

Spider-Webb: enhanced star formation in low-mass galaxies within the Spiderweb protocluster revealed by JWST Pa narrow-band imaging

Kazuki Daikuhara, Tadayuki Kodama, Yusei Koyama +10

Understanding the role of the environment in galaxy evolution is key to revealing the physical processes that regulate galaxy growth. We study the star formation activity of \pab\…

astro-ph.GA2026

The multiple corrugations in the Galactic disk derived from the LAMOST and Gaia survey data

Jifei Wang, Zhuohan Li, Chengdong Li +6

Large spectroscopic and astrometric surveys have revealed complex wave-like features in the Milky Way disk, suggesting that its kinematic and chemical structures are shaped by time…

astro-ph.GA2026

Super-Eddington accretion of black holes in early nuclear bursts gives birth to Little Red Dots

Yangyao Chen, Houjun Mo

In a recent paper, Chen et al. developed a framework for modeling the seeding and growth of supermassive black holes (BHs) in the context of CDM cosmogony. Here, we use a set of…

astro-ph.GA2026★ 1 cited

A systematic study of AGN feedback in a disk galaxy using MACER II: predictions of X-ray surface brightness profiles and comparison with eROSITA observations

Yuxuan Zou, Feng Yuan, Suoqing Ji +6

Recently, we have performed a systematic study of AGN feedback in a disk galaxy within the MACER framework. Various model predictions, including the AGN duty cycle, the correlation…

astro-ph.GA2026★ 1 cited

Mapping the Milky Way with Gaia Bp/Rp spectra-IV: the broken and asymmetric density profile of the stellar disk traced by a large sample of red clumps

Wenbo Wu, Yuqin Chen, Jianhui Lian +10

This study explores the density profile of the stellar disk, radially and azimuthally, based on approximately 8.4 million red clump stars selected from Gaia Bp/Rp spectra. After co…

astro-ph.GA2026

Molecular Clouds at the Edge of the Galaxy II. Physical properties and scaling relations

C. S. Luo, X. D. Tang, C. Henkel +22

The outer Galaxy presents an optimal setting for investigating molecular clouds and star formation in environments with low metallicity. A total of 72 Galactic edge clouds were sur…

astro-ph.GA2026

Full-polarization millimeter wavelength variability of Sagittarius A* during the 2018 EHT campaign

Ezequiel Albentosa-Ruiz, Jasmin E. Washington, Nicola Marchili +272

Sagittarius A* (Srg A*), the supermassive black hole at the center of the Milky Way, provides a unique laboratory to study accretion dynamics and plasma processes near the event ho…

astro-ph.GA2026

The Sinking Statistics of Dark Matter Subhalos Across Hierarchical Levels

Wenkang Jiang, Jiaxin Han, Kun Xu +6

We investigate the mergers among subhalos in a CDM simulation, focusing on two fundamental aspects overlooked by previous studies: 1) how to identify mergers robustly; 2) the st…

astro-ph.GA2026★ 4 cited

Random gas motions inside sub-parsec scale supercritical filaments

Chao Zhang, Tie Liu, Mika Juvela +12

Supercritical gas filaments in molecular clouds host the dense cores in which new stars form. The mechanisms governing their formation and subsequent gas accretion remain poorly un…

astro-ph.GA2026

The tidal evolution of satellite galaxies in cosmological simulations: insights from COLIBRE

Feihong He, Jiaxin Han, Joop Schaye +12

We investigate the co-evolution of the stellar and dark matter mass of satellite galaxies using the COLIBRE cosmological hydrodynamical simulations with subhaloes resolved by the h…

astro-ph.GA2026

The mmax-Mecl relation in the LEGUS clusters

Marie Zinnkann, Tereza Jerabkova, Zhiqiang Yan +6

The relation between the maximum stellar mass in a very young cluster (mmax) and the total stellar mass of the cluster (Mecl), known as the mmax-Mecl relation, remains debated in t…

astro-ph.GA2026★ 4 cited

A systematic study of AGN feedback in a disk galaxy I: global overview

Yuxuan Zou, Feng Yuan, Suoqing Ji +5

This is the first paper in a series using our MACER framework to investigate the evolution of a disk galaxy, which emphasizes the role of active galactic nucleus (AGN) feedback and…

astro-ph.GA2026

The dominance of turbulence over magnetism in the formation of massive star cluster seeds

Junhao Liu, Patricio Sanhueza, Piyali Saha +32

High-mass stars form in protoclusters, where gravo-magnetic processes shape collapsing clouds and clumps to be elongated preferentially perpendicular to magnetic (B) fields. Yet it…

astro-ph.GA2026★ 2 cited

ULTIMATE-deblending I. A 50-band Ultraviolet to Mid-infrared Photometric Catalog Combining Space- and Ground-based Data in the JWST/PRIMER survey

Hanwen Sun, Tao Wang, Ke Xu +16

Our understanding of the early Universe has long been limited by biased galaxy samples selected through various color criteria. With deep JWST infrared imaging, mass-complete galax…

astro-ph.GA2026★ 5 cited

Through Thick and Thin: The Cosmic Evolution of Disk Scale Height

Si-Yue Yu, Luis C. Ho, Takafumi Tsukui +16

To investigate the formation and evolution of vertical structures in disk galaxies, we measure global scale heights, averaging thin and thick components whe…