69 citations · 280 across the 18 of their papers we have counts for
18 papers
Examining the stellar-merger origin of the blue main sequence in the open cluster NGC\,3532 with N-body simulations
Khushboo K. Rao, Sambaran Banerjee
Extended main-sequence turnoffs, extended main sequences, and split main sequences observed in the colour-magnitude diagrams of young and intermediate-age star clusters are now wid…
Investigating Extended Main-Sequence Turnoffs in Galactic Open Clusters
Khushboo K Rao, Wen-Ping Chen
The extended main sequence (eMS) and extended main sequence turnoff (eMSTO) phenomena have been observed in some young and intermediate-age star clusters in the Milky Way and in th…
A rotation-based census of blue lurker candidates in open clusters
Vikrant V. Jadhav, Khushboo K. Rao, Elisabetta Reggiani
Blue lurkers (BLs) are rejuvenated main-sequence stars hidden among normal main-sequence stars on color-magnitude diagrams of star clusters. In comparison, the blue straggler stars…
The Secret Lives of Open Clusters: a Multiwavelength Examination of Three Open Clusters
Kristen C. Dage, Emily L. Hunt, Jasmine Anderson-Baldwin +11
Star clusters are well known for their dynamical interactions, an outcome of their high stellar densities; in this paper we use multiwavelength observations to search for the uniqu…
Investigating Unusually Extended Main Sequence Turnoff of the Galactic Open Cluster NGC 3532
Khushboo K Rao, Wen-Ping Chen
Extended main-sequence turnoffs are observed in the color-magnitude diagrams of some young and intermediate-age star clusters. Here we report the case study of NGC 3532. Among the…
Characterization of blue and yellow straggler stars of Berkeley 39 using Swift/UVOT
Komal Chand, Khushboo Rao, Kaushar Vaidya +1
We characterize blue straggler stars (BSS) and yellow straggler stars (YSS) of an open cluster (OC) Berkeley 39 using multi-wavelength observations including Swift/UVOT. Our analys…
Dynamical Evolution of Four Old Galactic Open Clusters traced by their constituent stars with \textit{Gaia} DR3
Shanmugha Balan, Khushboo K Rao, Kaushar Vaidya +2
We investigate the evolutionary stages of four open clusters, Berkeley 39, Collinder 261, NGC 6819, and NGC 7789, of ages ranging from 1.6 -- 6 Gyr. These clusters have previously…
Determination of dynamical ages of open clusters through the A parameter -- II
Khushboo K. Rao, Kaushar Vaidya, Manan Agarwal +2
Blue straggler stars (BSS), one of the most massive members of star clusters, have been used for over a decade to investigate mass segregation and estimate the dynamical ages of gl…
Hot Stellar Populations of Berkeley 39 using Swift/UVOT
Komal Chand, Khushboo Kunwar Rao, Kaushar Vaidya +1
Open clusters are excellent tools to probe the history of the Galactic disk and properties of star formation. In this work, we present a study of an old age open cluster Berkley 39…
Discovery of double BSS sequences in the old Galactic open cluster Berkeley 17
Khushboo K Rao, Souradeep Bhattacharya, Kaushar Vaidya +1
Blue straggler stars (BSS) are peculiar objects which normally appear as a single broad sequence along the extension of the main sequence. Only four globular clusters (GCs) have be…
A EDR3 search for tidal tails in disintegrating open clusters
Souradeep Bhattacharya, Khushboo K. Rao, Manan Agarwal +2
We carry out a search for tidal tails in a sample of open clusters with known relatively elongated morphology. We identify the member stars of these clusters from the precise astro…
UOCS-VIII. UV Study of the open cluster NGC 2506 using ASTROSAT
Anju Panthi, Kaushar Vaidya, Vikrant Jadhav +4
We study an intermediate-age open cluster NGC 2506 using the \textit{ASTROSAT}/UVIT data and other archival data. We identified 2175 cluster members using a machine learning-based…
Characterization of hot populations of Melotte 66 open cluster using Swift/UVOT
K. K. Rao, K. Vaidya, M. Agarwal +3
Ultraviolet (UV) wavelength observations have made a significant contribution to our understanding of hot stellar populations of star clusters. Multi-wavelength spectral energy dis…
UOCS VII. Blue Straggler Populations of Open Cluster NGC 7789 with UVIT/AstroSat
Kaushar Vaidya, Anju Panthi, Manan Agarwal +4
NGC 7789 is a 1.6 Gyr old, populous open cluster located at 2000 pc. We characterize the blue straggler stars (BSS) of this cluster using the Ultraviolet (UV) data from…
Tidal tails in the disintegrating open cluster NGC 752
Souradeep Bhattacharya, Manan Agarwal, Khushboo K. Rao +1
We utilize the robust membership determination algorithm, ML-MOC, on the precise astrometric and deep photometric data from Gaia Early Data Release 3 within a region of radius 5$^{…
Determination of dynamical ages of open clusters through the A parameter -- I
Khushboo K. Rao, Kaushar Vaidya, Manan Agarwal +1
The sedimentation level of blue straggler stars (BSS) has been shown to be a great tool to investigate the dynamical states of globular clusters (GCs). The area enclosed between th…
ML-MOC: Machine Learning (kNN and GMM) based Membership Determination for Open Clusters
Manan Agarwal, Khushboo K. Rao, Kaushar Vaidya +1
The existing open cluster membership determination algorithms are either prior dependent on some known parameters of clusters or are not automatable to large samples of clusters. I…
Blue Straggler Populations of Seven Open Clusters with Gaia DR2
Kaushar Vaidya, Khushboo K. Rao, Manan Agarwal +1
Blue straggler stars (BSS) are well studied in globular clusters but their systematic study with secure membership determination is lacking in open clusters. We use Gaia DR2 data t…