English
Related papers

Related papers: Kinematics $\&$ Star Formation in the Hub-Filament…

200 papers

High-mass stars and star clusters commonly form within hub-filament systems. Monoceros R2, harbors one of the closest such systems, making it an excellent target for case studies. We investigate the morphology, stability and dynamical…

We study multiwavelength and multiscale data to investigate the kinematics of molecular gas associated with the star-forming complexes G045.49+00.04 (G45E) and G045.14+00.14 (G45W) in the Aquila constellation. An analysis of the FUGIN…

Astrophysics of Galaxies · Physics 2022-05-25 N. K. Bhadari , L. K. Dewangan , D. K. Ojha , L. E. Pirogov , A. K. Maity

Recent observations have identified hub-filament systems (HFSs) as the primary formation sites of massive stars and star clusters. Some HFSs are characterized by multiple filaments aligned radially toward a central high-density hub.…

Astrophysics of Galaxies · Physics 2026-03-04 Shingo Nozaki , Shu-ichiro Inutsuka

Hub-filament systems (HFSs) play an important role in the formation of massive stars and star clusters. Although the velocity structures along dense filaments have been studied, the gas kinematics in the low density inter-filament regions…

In the past decade filaments have been recognised as a major structural element of the interstellar medium, the densest of these filaments hosting the formation of most stars. In some star-forming molecular clouds converging networks of…

G22 is a hub-filament system composed of four supercritical filaments. Velocity gradients are detected along three filaments. A total mass infall rate of 440 $M_\odot$~Myr$^{-1}$ would double the hub mass in about six free-fall times. The…

Astrophysics of Galaxies · Physics 2018-08-22 Jinghua Yuan , Jin-Zeng Li , Yuefang Wu

The FIRESTORM project--Feedback-Induced Regions and Emission from Star-forming Tracers of ObseRvable Molecular Gas--has targeted four star-forming regions to quantify the impact of stellar feedback on star formation. In this paper, we…

To unravel the star formation process, we present a multi-scale and multi-wavelength study of the filamentary infrared dark cloud (IRDC) G333.73+0.37, which hosts previously known two HII regions located at its center. Each HII region is…

Astrophysics of Galaxies · Physics 2022-04-20 L. K. Dewangan

We present a multi-wavelength study of the massive protocluster G286.21+0.17 (G286) using \emph{JWST} near-infrared imaging and ALMA H$^{13}$CO$^{+}$(1--0) observations. The \emph{JWST} images uncover a compact ($\sim$0.5 pc) hub-filament…

We present a multiwavelength investigation of the hub-filament system RCW 117 (IRAS 17059-4132), which shows intricate filamentary features in the far-infrared, mapped using Herschel images. We obtain the column density and dust temperature…

Astrophysics of Galaxies · Physics 2023-11-03 Arun Seshadri , S. Vig , S. K. Ghosh , D. K. Ojha

We present 850$\mu$m polarized observations of the molecular cloud G34.26+0.15 taken using the POL-2 polarimeter mounted on the James Clerk Maxwell Telescope (JCMT). G34.26+0.15 is a hub-filament system with ongoing high-mass…

Astrophysics of Galaxies · Physics 2024-10-10 Zacariyya A. Khan , Kate Pattle , Sarah F. Graves

Filamentary structures are ubiquitously seen in the interstellar medium. The concentrated molecular mass in the filaments allows fragmentation to occur in a shorter timescale than the timescale of the global collapse. Such hierarchical…

Solar and Stellar Astrophysics · Physics 2015-06-05 Hauyu Baobab Liu , Izaskun Jiménez-Serra , Paul T. -P. Ho , Huei-Ru Chen , Qizhou Zhang , Zhi-Yun Li

We studied the hub filament system G323.46-0.08 based on archival molecular line data from the SEDIGISM 13CO survey and infrared data from the GLIMPSE, MIPS, and Hi-GAL surveys. G323.46-0.08 consists of three filaments, F-north, F-west, and…

The formation of massive stars is a highly complex process in which it is not clear whether the star-forming gas is in global gravitational collapse or in an equilibrium state, supported by turbulence. By studying one of the most massive…

Astrophysics of Galaxies · Physics 2015-05-18 N. Schneider , T. Csengeri , S. Bontemps , F. Motte , R. Simon , P. Hennebelle , C. Federrath , R. Klessen

In this study, we examine three cluster-forming hub-filament systems (HFS) - W3(OH), W3 Main, and S 106 - spanning evolutionary stages from early to advanced, with a focus on their magnetic field (B-field) structures and filament line-mass…

Astrophysics of Galaxies · Physics 2025-11-12 M. S. N. Kumar , D. Arzoumanian , S. Inutsuka , R. Furuya , N. K. Bhadari

We decomposed the G333 complex and the G331 giant molecular cloud into multi-scale hub-filament systems (HFs) using the high-resolution $^{13}$CO (3$-$2) data from LAsMA observations. We employed the filfinder algorithm to identify and…

Astrophysics of Galaxies · Physics 2025-06-23 J. W. Zhou , J. S. Urquhart , F. Wyrowski , S. Neupane , T. Liu , M. Juvela

The combination of line and continuum observations can provide vital insights to the formation and fragmentation of filaments and the initial conditions for star formation. We have carried out line observations to map the kinematics of an…

Filaments are ubiquitous structures in molecular clouds and play an important role in the mass assembly of stars. We present results of dynamical stability analyses for filaments in the infrared dark cloud G14.225$-$0.506, where a delayed…

Hub-filament systems are suggested to be the birth cradles of high-mass stars and clusters. We apply the FILFINDER algorithm to the integrated intensity maps of the 13CO (3-2) line to identify filaments in the G333 complex, and extract the…

Astrophysics of Galaxies · Physics 2023-08-16 J. W. Zhou , F. Wyrowski , S. Neupane , J. S. Urquhart , N. J. Evans , E. Vázquez-Semadeni , K. M. Menten , Y. Gong , T. Liu