8 papers · 1 filter
Dynamical Modelling of Galactic Kinematics using Neural Networks
David A. Simon, Michele Cappellari, Shude Mao +2
The advent of integral field data has revolutionised the study of galaxy evolution. A key component of this is dynamical modelling methods which have allowed for crucial insights t…
From larger-scale cold-gas angular-momentum environment to galaxy star-formation activeness
Sen Wang, Dandan Xu, Shengdong Lu
We study the influence of the ambient large-scale cold-gas vorticity on the specific star formation rate (sSFR) of central galaxies with stellar masses of $10.0<\log\,M_{\ast}/\mat…
Disparate Effects of Circumgalactic Medium Angular Momentum in IllustrisTNG and SIMBA
Kexin Liu, Hong Guo, Sen Wang +4
In this study, we examine the role of circumgalactic medium (CGM) angular momentum () on star formation in galaxies, whose influence is currently not well understood.…
Kinematical coherence between satellite galaxies and host stellar discs for MaNGA & SAMI galaxies
Sen Wang, Dandan Xu, Shengdong Lu +1
The effect of angular momentum on galaxy formation and evolution has been studied for several decades. Our recent two papers using IllustrisTNG-100 simulation have revealed the acq…
MaNGA DynPop -- V. The dark-matter fraction versus stellar velocity dispersion relation and stellar initial mass function variations in galaxies: dynamical models and full spectrum fitting of integral-field spectroscopy
Shengdong Lu, Kai Zhu, Michele Cappellari +3
Using the final MaNGA sample of 10K galaxies, we investigate the dark matter fraction within one half-light radius for about 6K galaxies with good kinemati…
Revealing the Gas Recycling in the Circumgalactic Medium (CGM) Utilizing a Luminous Ly Nebula Around a Type-II Quasar at z=2.6 with the Keck Cosmic Web Imager (KCWI)
Shiwu Zhang, Zheng Cai, Dandan Xu +7
How galaxies acquire material from the circumgalactic medium (CGM) is a key question in galaxy evolution. Recent observations and simulations show that gas recycling could be an im…