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
18 papers · 2 filters
A comparative study of the physical properties for a representative sample of Narrow and Broad-line Seyfert galaxies
Vivek Kumar Jha, Hum Chand, Vineet Ojha +2
We present a comparative study of the physical properties of a homogeneous sample of 144 Narrow line Seyfert 1 (NLSy1) and 117 Broad-line Seyfert 1 (BLSy1) galaxies. These two samp…
Remnant radio galaxy candidates of small angular sizes
Veeresh Singh, Sushant Dutta, Yogesh Wadadekar +1
Remnant radio galaxies (RRGs), characterized by the cessation of AGN activity, represent a short-lived last phase of radio galaxy's life-cycle. Hitherto, searches for RRGs, mainly…
Sh 2-301: a blistered H II region undergoing star formation
Rakesh Pandey, Saurabh Sharma, Lokesh K. Dewangan +6
We present a multiwavelength study of the H II region Sh 2-301 (S301) using deep optical data, near-infrared data, radio continuum data and other archival data at longer wavelength…
ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -- V. Hierarchical fragmentation and gas dynamics in IRDC G034.43+00.24
Hong-Li Liu, Anandmayee Tej, Tie Liu +35
We present new 3-mm continuum and molecular lines observations from the ATOMS survey towards the massive protostellar clump, MM1, located in the filamentary infrared dark cloud (IR…
The disk-outflow system around the rare young O-type protostar W42-MME
L. K. Dewangan, I. I. Zinchenko, P. M. Zemlyanukha +6
We present line and continuum observations (resolution ~0.3"-3.5") made with the Atacama Large Millimeter/submillimeter Array (ALMA), Submillimeter Array, and Very Large Array of a…
ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -- IV. Radio Recombination Lines and evolution of star formation efficiencies
C. Zhang, Neal J. Evans, T. Liu +11
We report detection of radio recombination line (RRL) H toward 75 sources, with data obtained from ACA observations in the ATOMS survey of 146 active Galactic star forming…
ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -- VI. On the formation of the "L" type filament in G286.21+0.17
Jian-Wen Zhou, Tie Liu, Jin-Zeng Li +16
Filaments play an important role in star formation, but the formation process of filaments themselves is still unclear. The high-mass star forming clump G286.21+0.17 (G286 for shor…
Subaru Hyper Suprime-Cam Survey of Cygnus OB2 Complex -- I: Introduction, Photometry and Source Catalog
Saumya Gupta, Jessy Jose, Surhud More +11
Low mass star formation inside massive clusters is crucial to understand the effect of cluster environment on processes like circumstellar disk evolution, planet and brown dwarf fo…
Probing gas kinematics and PDR structure around O-type stars in Sh 2-305 HII region
N. K. Bhadari, L. K. Dewangan, P. M. Zemlyanukha +3
We report an observational study of the Galactic HII region Sh 2-305/S305 using the [CII] 158 m line data, which are used to examine the gas dynamics and structure of photodisso…
Lynds Bright Nebulae: Sites of possible twisted filaments and ongoing star formation
L. K. Dewangan, J. S. Dhanya, N. K. Bhadari +2
The paper presents an analysis of multi-wavelength data of two Lynds Bright Nebulae (LBN), LBN 140.07+01.64 and LBN 140.771.42. The 1420 MHz continuum map reveals an extended Y-…
ALMA discovery of a dual dense probably rotating outflow from a massive young stellar object G18.88MME
I. I. Zinchenko, L. K. Dewangan, T. Baug +2
We report the discovery of a very dense jet-like fast molecular outflow surrounded by a wide-angle wind in a massive young stellar object (MYSO) G18.88MME (stellar mass 8 M$_…
Chemical complexity of phosphorous bearing species in various regions of the Interstellar medium
Milan Sil, Satyam Srivastav, Bratati Bhat +10
Phosphorus related species are not known to be as omnipresent in space as hydrogen, carbon, nitrogen, oxygen, and sulfur-bearing species. Astronomers spotted very few P-bearing mol…
ATOMS:ALMA Three-millimeter Observations of Massive Star-forming regions -- III :Catalogues of candidate hot molecular cores and Hyper/Ultra compact HII regions
Hong-Li Liu, Tie Liu, Neal J. Evans +50
We have identified 453 compact dense cores in 3 mm continuum emission maps in the ATOMS (ALMA Three-millimeter Observations of Massive Star-forming regions) survey, and compiled th…
Unraveling the inner substructure of new candidate hub-filament system in the HII region G25.4NW
L. K. Dewangan
We present multi-scale and multi-wavelength data of the Galactic HII region G25.4-0.14 (hereafter G25.4NW, distance ~5.7 kpc). The SHARC-II 350 micron continuum map displays a hub-…
Multi-colour photometry and Gaia EDR3 astrometry of two couples of binary clusters (NGC 5617 and Trumpler 22) and (NGC 3293 and NGC 3324)
D. Bisht, Qingfeng Zhu, R. K. S. Yadav +5
This paper presents a comprehensive analysis of two pairs of binary clusters (NGC 5617 and Trumpler 22) and (NGC 3293 and NGC 3324) located in the fourth quadrant of our Galaxy. Fo…
Magnetic fields and Star Formation around HII regions: The S235 complex
R. Devaraj, D. P. Clemens, L. K. Dewangan +3
Magnetic fields are ubiquitous and essential in star formation. In particular, their role in regulating formation of stars across diverse environments like HII regions needs to be…
Imaging and photometric studies of NGC 1316 (Fornax A) using Astrosat/UVIT
Nilkanth D Vagshette, Sachindra Naik, Neeraj Kumari +1
We present imaging and photometric studies of the radio galaxy NGC 1316 (Fornax~A) using high spatial resolution near-ultraviolet (NUV) and far-ultraviolet (FUV) imaging telescopes…
Testing the role of environmental effects on the initial mass function of low-mass stars
Belinda Damian, Jessy Jose, Manash R. Samal +3
In the star formation process, the vital impact of environmental factors such as feedback from massive stars and stellar density on the form of the initial mass function (IMF) at l…