14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR238 papers
- Lomonosov Moscow State UniversityRU216 papers
- Australian National UniversityAU207 papers
- Massachusetts Institute of TechnologyUS202 papers
- University of FloridaUS201 papers
- California Institute of TechnologyUS200 papers
- University of Maryland, College ParkUS200 papers
- University of MinnesotaUS199 papers
- Northwestern UniversityUS198 papers
- Academy of Sciences of MoldovaMD197 papers
- Cardiff UniversityGB186 papers
- Goddard Space Flight CenterUS185 papers
52 papers · 1 filter
FIRESTORM I: Stellar Feedback and Gas Kinematics in the Evolved W40 Hub-Filament System
Ming-Kang Lim, Ram K. Yadav, L. K. Dewangan +12
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…
Properties of Contracting Massive Protostellar Cores
L. E. Pirogov, P. M. Zemlyanukha, E. M. Dombek
Studies of the structure and kinematics of cores associated with the regions of massive star and star cluster formation are necessary for constructing scenario for the evolution of…
JWST-ALMA Study of a Hub-Filament System in the Nascent Phase
N. K. Bhadari, L. K. Dewangan, O. R. Jadhav +7
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…
Fine structure and kinematics of the ionized and molecular gas in the jet and disk around S255IR NIRS3 from high resolution ALMA observations
I. I. Zinchenko, S. -Y. Liu, Y. -N. Su
We present observations of the high-mass star-forming region S255IR, which harbors the 20 M protostar NIRS3, where a disk-mediated accretion burst was recorded severa…
Physical Properties and Kinematics of Dense Cores Associated with Regions of Massive Star Formation from the Southern Sky
L. E. Pirogov, P. M. Zemlyanukha, E. M. Dombek +1
The results of spectral observations in the GHz frequency range of six objects in the southern sky containing dense cores and associated with regions of massive stars…
Variations of the HCO, HCN, HNC, NH and NH deuterium fractionation in high-mass star-forming regions
A. G. Pazukhin, I. I. Zinchenko, E. A. Trofimova +2
We use spectra and maps of the and DCO, DCN, DNC, lines and ortho- and para-NHD lines, obtained with the IRAM-30m telescope…
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…
HCN-HNC intensity ratio as a temperature indicator of interstellar clouds
A. G. Pazukhin, I. I. Zinchenko, E. A. Trofimova +1
With the 30-m IRAM radio telescope, we observed several massive star forming regions at wavelengths of 3-4 and 2 mm. The temperature of the gas in the sources was estimated from th…
Ionized filaments and ongoing physical processes in massive star-forming sites around l = 345.5 degree
L. K. Dewangan, L. E. Pirogov, N. K. Bhadari +1
Numerous research studies on dust and molecular filaments have been conducted in star-forming sites, but only a limited number of studies have focused on ionized filaments. To obse…
Fragmented atomic shell around S187 HII region and its interaction with molecular and ionized gas
Petr Zemlyanukha, Igor I. Zinchenko, Evgeny Dombek +6
The environment of S187, a nearby H II region (1.40.3 kpc), is analyzed. A surrounding shell has been studied in the H I line, molecular lines, and also in infrared and radio…
Dust Temperature Profiles in Dense Cores Associated With Massive Star-Forming Regions
L. E. Pirogov
Using the APEX-12m telescope, continuum maps at 350~m of eight gas-dust clouds from the southern hemisphere are obtained. Clouds are associated with the regions of massive star…
Simultaneous evidence of edge collapse and hub-filament configurations: A rare case study of a Giant Molecular Filament G45.3+0.1
N. K. Bhadari, L. K. Dewangan, D. K. Ojha +2
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)…
The methanol emission in the A line series as a tracer of specific physical conditions in high-mass star-forming regions
Svetlana V. Salii, Igor I. Zinchenko, Sheng-Yuan Liu +3
We present results of the investigations of the properties of the methanol A line series motivated by the recent serendipitous detection of the maser emission in…
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…
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…
SRG/eROSITA discovery of a large circular SNR candidate G116.6-26.1: SN Ia explosion probing the gas of the Milky Way halo?
E. M. Churazov, I. I. Khabibullin, A. M. Bykov +3
We report a discovery of a new X-ray-selected supernova remnant (SNR) candidate SRGe~J0023+3625 = G116.6-26.1 found in the SRG/eROSITA all-sky survey. The source features a large a…
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$_…
A multi-line study of the filamentary infrared dark cloud G351.78-0.54
O. L. Ryabukhina, I. I. Zinchenko
We present results of a multi-line study of the filamentary infrared dark cloud G351.78-0.54 in the 1.3 and 0.8 mm wavelength bands. The lines of the three isotopologues of carbon…
Principal component analysis for estimating parameters of the L1287 dense core by fitting model spectral maps into observed ones
L. E. Pirogov, P. M. Zemlyanukha
An algorithm has been developed for finding the global minimum of a multidimensional error function by fitting model spectral maps into observed ones. Principal component analysis…
ALMA View of the Infalling Envelope around a Massive Protostar in S255IR SMA1
Sheng-Yuan Liu, Yu-Nung Su, Igor Zinchenko +4
The massive young stellar object S255IR NIRS3 embedded in the star forming core SMA1 has been recently observed with a luminosity burst, which is conjectured as a disc-mediated var…
Star-forming sites IC 446 and IC 447: an outcome of end-dominated collapse of Monoceros R1 filament
N. K. Bhadari, L. K. Dewangan, L. E. Pirogov +1
We present an analysis of multi-wavelength observations of Monoceros R1 (Mon R1) complex (at d ~760 pc). An elongated filament (length ~14 pc, mass ~1465 Msun) is investigated in t…
Investigating the physical conditions in extended system hosting mid-infrared bubble N14
L. K. Dewangan, T. Baug, L. E. Pirogov +1
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.…
Dense Cores, Filaments and Outflows in the S255IR Region of High Mass Star Formation
Igor I. Zinchenko, Sheng-Yuan Liu, Yu-Nung Su +2
We investigate at a high angular resolution the spatial and kinematic structure of the S255IR high mass star-forming region, which demonstrated recently the first disk-mediated acc…
Observational signatures of end-dominated collapse in the S242 filamentary structure
Lokesh K. Dewangan, Lev E. Pirogov, Olga L. Ryabukhina +2
We present new CO (13CO(1-0) and C18O(1-0)) and CS(2-1) line observations of an elongated filamentary structure (length ~30 pc) in the star-forming site S242, which were taken with…