Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Khushboo K. Rao"'
Publikováno v:
The Astronomical Journal, Vol 168, Iss 5, p 204 (2024)
We investigate the evolutionary stages of four open clusters—Berkeley 39, Collinder 261, NGC 6819, and NGC 7789—of ages ranging from 1.6 to 6 Gyr. These clusters have previously been classified into dynamically young and intermediate age groups b
Externí odkaz:
https://doaj.org/article/24b2c2979bf64c5f87424ec9bb6192c7
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 517:3525-3549
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 astrometric and deep photometric data from $Gaia$ Early Data Release 3 usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6600f5284526a9d6c53568157fd3f8d5
https://doi.org/10.1093/mnras/stac2906
https://doi.org/10.1093/mnras/stac2906
Autor:
Anju Panthi, Kaushar Vaidya, Vikrant Jadhav, Khushboo K Rao, Annapurni Subramaniam, Manan Agarwal, Sindhu Pandey
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 516:5318-5330
We study an intermediate-age open cluster (OC) NGC 2506 using the ASTROSAT/UVIT data and other archival data. We identified 2175 cluster members using a machine learning-based algorithm, ML–MOC, on Gaia EDR3 data. Among the cluster members detected
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c82932cce547927049199021d7de6d24
https://doi.org/10.1093/mnras/stac2421
https://doi.org/10.1093/mnras/stac2421
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 508:4919-4937
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 the cumulative radial distributions of BSS and a reference population up
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef81bf4485215d4d91c208df298dc2fa
https://doi.org/10.1093/mnras/stab2894
https://doi.org/10.1093/mnras/stab2894
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 505:1607-1613
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$^{\circ}$ around the center of the intermediate-age galactic open cluste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f59cf9f1a1159fb837cdaaa0524f8dea
https://doi.org/10.1093/mnras/stab1404
https://doi.org/10.1093/mnras/stab1404
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 496:2402-2421
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 to determine accurate stellar membership for four intermediate-age open
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a8b935f065c775f514299ec216c59bb
https://doi.org/10.1093/mnras/staa1667
https://doi.org/10.1093/mnras/staa1667
Autor:
Khushboo K Rao, Kaushar Vaidya, Manan Agarwal, Anju Panthi, Vikrant Jadhav, Annapurni Subramaniam
Ultraviolet (UV) wavelength observations have made a significant contribution to our understanding of hot stellar populations of star clusters. Multiwavelength spectral energy distributions (SEDs) of stars, including ultraviolet observations, have pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e06515b9c0a9888a6ffb477614a6e4f8
Autor:
Kaushar Vaidya, Anju Panthi, Manan Agarwal, Sindhu Pandey, Khushboo K Rao, Vikrant Jadhav, Annapurni Subramaniam
NGC 7789 is a $\sim$1.6 Gyr old, populous open cluster located at $\sim$2000 pc. We characterize the blue straggler stars (BSS) of this cluster using the Ultraviolet (UV) data from the UVIT/AstroSat. We present spectral energy distributions (SED) of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09b98cf2e14e6bbe0ed71267a32aca91
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 been observed to have two distinct and parallel BSS sequences. For the f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64d9b36f8726f8be30d937241b4e1ea5