518 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Indian Institute of Technology GandhinagarIN282 papers
- Tata Institute of Fundamental ResearchIN161 papers
- Centre National de la Recherche ScientifiqueFR100 papers
- Indian Institute of AstrophysicsIN92 papers
- Chinese Academy of SciencesCN71 papers
- Aryabhatta Research Institute of Observational SciencesIN66 papers
- Inter-University Centre for Astronomy and AstrophysicsIN62 papers
- Harish-Chandra Research InstituteIN54 papers
- Indian Institute of Science BangaloreIN54 papers
- Indian Institute of Technology BombayIN54 papers
- Udaipur Solar ObservatoryIN53 papers
- California Institute of TechnologyUS46 papers
19 papers · 2 filters
Warp and flare of the old Galactic disc as traced by the red clump stars
Namita Uppal, Shashikiran Ganesh, Mathias Schultheis
Our study aims to investigate the outer disc structure of the Milky Way galaxy using the red clump (RC) stars. We analysed the distribution of the largest sample of RC stars to dat…
Direct observational evidence of the multi-scale, dynamical mass accretion toward a high-mass star forming hub-filament system
Dongting Yang, Hong-Li Liu, Anandmayee Tej +28
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…
ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): A forming quadruple system with continuum `ribbons' and intricate outflows
Qiu-yi Luo, Tie Liu, Aaron T. Lee +31
One of the most poorly understood aspects of low-mass star formation is how multiple-star systems are formed. Here we present the results of Atacama Large Millimeter/submillimeter…
AFGL 5180 and AFGL 6366S: sites of hub-filament systems at the opposite edges of a filamentary cloud
A. K. Maity, L. K. Dewangan, N. K. Bhadari +3
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 methano…
Investigating star formation activity in the Sh 2-61 H II region
Rakesh Pandey, Saurabh Sharma, Lokesh Dewangan +4
Using the multiwavelength data sets, we studied the star formation activity in H II region Sh 2-61 (hereafter S61). We identified a clustering in the region and estimated the membe…
Multi-epoch hard X-ray view of Compton-thick AGN Circinus Galaxy
Abhijit Kayal, Veeresh Singh, Claudio Ricci +4
The circumnuclear material around Active Galactic Nuclei (AGN) is one of the essential components of the obscuration-based unification model. However, our understanding of the circ…
The statistical analysis of the dynamical evolution of the open clusters
Jayanand Maurya, Y. C. Joshi, Manash Ranjan Samal +2
We present the dynamical evolution of ten open clusters which were part of our previous studies. These clusters include both young and intermediate-age open clusters with ages rang…
Probing the Global Dust Properties and Cluster Formation Potential of the Giant Molecular Cloud G148.24+00.41
Vineet Rawat, M. R. Samal, D. L. Walker +8
Clouds more massive than about M are potential sites of massive cluster formation. Studying the properties of such clouds in the early stages of their evolution offe…
Membership analysis and 3D kinematics of the star-forming complex around Trumpler 37 using Gaia-DR3
Swagat R. Das, Saumya Gupta, Prem Prakash +2
Identifying and characterizing young populations of star-forming regions is crucial to unravel their properties. In this regard, Gaia-DR3 data and machine learning tools are very u…
Infrared polarisation study of Lynds 1340: A case of RNO 8
Archita Rai, Shashikiran Ganesh
This paper describes the polarisation study of a Lynds cloud, LDN 1340, = 2h32m & = corresponding to galactic coordinates of 130.07…
IC 5146 dark Streamer: is a first reliable candidate of edge collapse, hub-filament systems, and intertwined sub-filaments?
L. K. Dewangan, N. K. Bhadari, A. Men'shchikov +5
The paper presents an analysis of multi-wavelength data of a nearby star-forming site IC 5146 dark Streamer (d 600 pc), which has been treated as a single and long filament,…
Density Structure of Centrally Concentrated Prestellar Cores from Multi-scale Observations
Dipen Sahu, Sheng-Yuan Liu, Doug Johnstone +23
Starless cores represent the initial stage of evolution toward (proto)star formation, and a subset of them, known as prestellar cores, with high density (~ 10^6 cm^-3 or higher) an…
First Detection of Radio Recombination Lines of Ions Heavier than Helium
Xunchuan Liu, Tie Liu, Zhiqiang Shen +31
We report the first detection of radio recombination lines (RRLs) of ions heavier than helium. In a highly sensitive multi-band (12--50 GHz) line survey toward Orion KL with the Ti…
Structure and Kinematics of Sh2-138 -- A distant hub-filament system in the outer Galactic plane
Kshitiz Mallick, Lokesh Dewangan, Devendra Ojha +2
We present a molecular line study of the Sh2-138 (IRAS 22308+5812) hub-filament system with an aim to investigate its structure and kinematics. Archival CO molecular line data from…
Kronberger 55: A Candidate for End-dominated Collapse Scenario
Aayushi Verma, Saurabh Sharma, Lokesh Dewangan +5
Using optical photometric observations from 1.3m Devasthal Fast Optical Telescope and deep near-infrared (NIR) photometric observations from TANSPEC mounted on 3.6m Devasthal Optic…
Evidence of high-mass star formation through multi-scale mass accretion in hub-filament-system clouds
Hong-Li Liu, Anandmayee Tej, Tie Liu +30
We present a statistical study of a sample of 17 hub-filament-system (HFS) clouds of high-mass star formation using high-angular resolution (1-2 arcsecond) ALMA 1.3mm and 3mm…
Investigating the morphology and CO gas kinematics of Sh2-112 region
Kshitiz Mallick, Saurabh Sharma, Lokesh Dewangan +3
We present a study of the molecular cloud in Sh2-112 massive star forming region using the 3-2 transition of CO isotopologues - CO, 13CO, and C18O; supplemented in part by CGPS HI…
ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -- XV. Steady Accretion from Global Collapse to Core Feeding in Massive Hub-filament System SDC335
Feng-Wei Xu, Ke Wang, Tie Liu +37
We present ALMA Band-3/7 observations towards "the Heart" of a massive hub-filament system (HFS) SDC335, to investigate its fragmentation and accretion. At a resolution of $\sim0.0…
AGN Feedback Through Multiple Jet Cycles in the Seyfert Galaxy NGC 2639
Vaishnav V. Rao, Preeti Kharb, Rubinur K. +7
The Seyfert galaxy NGC 2639 was known to exhibit three episodes of AGN jet/lobe activity. We present here the upgraded Giant Metrewave Radio Telescope (uGMRT) 735 MHz image of NGC…