中文
相关论文

相关论文: Investigating Embedded Structures and Gas Kinemati…

200 篇论文

We observationally investigate star formation (SF) process occurring in AFGL 5157 (area ~13.5 pc X 13.5 pc) using a multi-wavelength approach. Embedded filaments are seen in the {\it Herschel} column density map, and one of them is…

星系天体物理 · 物理学 2019-11-06 L. K. Dewangan

We investigate the star formation processes operating in a mid-infrared bubble N49 site, which harbors an O-type star in its interior, an ultracompact HII region, and a 6.7 GHz methanol maser at its edges. The 13CO line data reveal two…

星系天体物理 · 物理学 2017-12-27 L. K. Dewangan , D. K. Ojha , I. Zinchenko

To understand the formation process of massive stars, we present a multi-scale and multi-wavelength study of the W31 complex hosting two extended HII regions (i.e., G10.30-0.15 (hereafter, W31-N) and G10.15-0.34 (hereafter, W31-S)) powered…

星系天体物理 · 物理学 2022-07-27 A. K. Maity , L. K. Dewangan , H. Sano , K. Tachihara , Y. Fukui , N. K. Bhadari

We performed a large-scale mapping observation toward the W33 complex and its surroundings, covering an area of $1.3^\circ \times 1.0^\circ$ , in $^{12}$CO (1-0), $^{13}$CO (1-0), and C$^{18}$O (1-0) lines from the Purple Mountain…

星系天体物理 · 物理学 2021-02-24 Xiao-Lan Liu , Jin-Long Xu , Jun-Jie Wang , Nai-Ping Yu , Chuan-Peng Zhang , Nan Li , Guo-Yin Zhang

To observationally explore physical processes, we present a multi-wavelength study of a wide-scale environment toward l = 13.7 - 14.9 degrees containing a mid-infrared bubble N14. The analysis of 12CO, 13CO, and C18O gas at [31.6, 46] km/s…

星系天体物理 · 物理学 2020-07-29 L. K. Dewangan , T. Baug , L. E. Pirogov , D. K. Ojha

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…

星系天体物理 · 物理学 2022-04-20 L. K. Dewangan

In this paper, we have conducted an investigation focused on a segment of the $Spitzer$ mid-infrared bubble N59, specifically referred to as R1 within our study. Situated in the inner Galactic plane, this region stands out for its hosting…

星系天体物理 · 物理学 2024-03-29 Sonu Tabitha Paulson , K. K. Mallick , D. K. Ojha

With the aim of investigating the presence of molecular and dust clumps linked to two star forming regions identified in the expanding molecular envelope of the stellar wind bubble RCW78, we analyzed the distribution of the molecular gas…

星系天体物理 · 物理学 2015-06-17 C. E. Cappa , M. Rubio , G. A. Romero , N. U. Duronea , V. Firpo

To investigate the star formation process, we present a multi-wavelength study of a massive star-forming site RAFGL 5085, which has been associated with the molecular outflow, HII region, and near-infrared cluster. The continuum images at…

星系天体物理 · 物理学 2023-04-05 L. K. Dewangan , N. K. Bhadari , A. K. Maity , Rakesh Pandey , Saurabh Sharma , T. Baug , C. Eswaraiah

There is growing evidence that high-mass star formation (HMSF) is a multiscale, dynamical process in molecular clouds, where filaments transport gas material between larger and smaller scales. We analyze here multiscale gas dynamics in an…

星系天体物理 · 物理学 2024-01-04 Sirong Pan , Hong-Li Liu , Sheng-Li Qin

We present a multi-scale and multi-wavelength study to unveil massive star formation (MSF) processes around sites AFGL 5180, and AFGL 6366S, both hosting a Class II 6.7 GHz methanol maser emission. The radio continuum map at 8.46 GHz…

星系天体物理 · 物理学 2023-06-14 A. K. Maity , L. K. Dewangan , N. K. Bhadari , D. K. Ojha , Z. Chen , Rakesh Pandey

To probe the star formation (SF) process, we present a multi-wavelength study of IRAS 05480+2545 (hereafter I05480+2545). Analysis of Herschel data reveals a massive clump (M_clump ~ 1875 Msun; peak N(H_2) ~ 4.8 x 10^{22} cm^{-2}; A_V ~ 51…

星系天体物理 · 物理学 2017-07-26 Lokesh K. Dewangan , Devendra K. Ojha , Tapas Baug

Hub-filament systems (HFSs) are potential sites of massive star formation (MSF). To understand the role of filaments in MSF and the origin of HFSs, we conducted a multi-scale and multi-wavelength observational investigation of the molecular…

星系天体物理 · 物理学 2024-11-22 A. K. Maity , L. K. Dewangan , N. K. Bhadari , Y. Fukui , A. Haj Ismail , O. R. Jadhav , Saurabh Sharma , H. Sano

We present a multi-wavelength study of the filamentary cloud G47 (d $\sim$4.44 kpc), which hosts the mid-infrared bubbles N98, B1, and B2. The SMGPS 1.3 GHz continuum map detects ionized emission toward all the bubbles, marking the first…

There is growing evidence that high-mass star formation and hub-filament systems (HFS) are intricately linked. The gas kinematics along the filaments and the forming high-mass star(s) in the central hub are in excellent agreement with the…

Star clusters, including high-mass stars, form within hub-filament systems (HFSs). Observations of HFSs that remain unaffected by feedback from embedded stars are rare yet crucial for understanding the mass inflow process in high-mass star…

G18.93-0.03 is a prominent dust complex within an 0.8deg long filament, with the molecular clump G18.93/m being IR dark from near IR wavelength up to 160mu. Spitzer composite images show an IR bubble spatially associated with G18.93. We use…

星系天体物理 · 物理学 2015-06-12 J. Tackenberg , H. Beuther , R. Plume , T. Henning , J. Stil , M. Walmsley , F. Schuller , A. Schmiedeke

To probe star formation processes, we present a multi-scale and multi-wavelength investigation of the `Snake' nebula/infrared dark cloud G11.11$-$0.12 (hereafter, G11; length $\sim$27 pc). Spitzer images hint at the presence of…

星系天体物理 · 物理学 2023-11-01 L. K. Dewangan , N. K. Bhadari , A. K. Maity , C. Eswaraiah , Saurabh Sharma , O. R. Jadhav

[Abridged] The interstellar medium is observed to be organised in filamentary structures, as well as neutral (HI) and ionized (HII) bubbles. The expanding nature of these bubbles makes them shape their surroundings and possibly play a role…

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…

‹ 上一页 1 2 3 10 下一页 ›