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We present $UBVI_c$ CCD photometry of the young open cluster Stock 8 with the aim to study the basic properties and star formation scenario in this region. The radius of the cluster is found to be $\sim 6^{\prime}$ ($\sim 3.6$ pc) and the…

We present deep $UBVRI$ CCD photometry for the young open star clusters Tr 1 and Be 11. The CCD data for Be 11 is obtained for the first time. The sample consists of $\sim$ 1500 stars reaching down to $V$ $\sim$ 21 mag. Analysis of the…

Astrophysics · Physics 2009-11-07 R. K. S Yadav , Ram Sagar

We present UBVRI photometry of stars in the field of the intermediate-age open cluster NGC 559. By determining the stellar membership probabilities derived through a photometric and kinematic study of the cluster, we identify the 22 most…

Astrophysics of Galaxies · Physics 2015-06-17 Yogesh C. Joshi , L. A. Balona , Santosh Joshi , Brijesh Kumar

We have carried out deep (V$\sim$21 mag) \ubvri photometric study of the star cluster Stock 18. These along with archival Infrared data have been used to derive the basic cluster parameters and also to study the star formation processes in…

Solar and Stellar Astrophysics · Physics 2015-05-30 Himali Bhatt , Ram Sagar , J. C. Pandey

We analyse multi-wavelength observations of 32 young star clusters and associations in M33 with known oxygen abundance (8 < 12 + log(O/H) < 8.7), using ultraviolet (UV), optical, mid-infrared (MIR), CO (1-0) and 21-cm line (HI)…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 M. Grossi , E. Corbelli , C. Giovanardi , L. Magrini

We present a comprehensive multi-wavelength study of the star-forming region NGC 1893 to explore the effects of massive stars on low-mass star formation. Using near-infrared colours, slitless spectroscopy and narrow-band $H\alpha$…

Astrophysics · Physics 2009-11-13 Saurabh Sharma , A. K. Pandey , D. K. Ojha , W. P. Chen , S. K. Ghosh , B. C. Bhatt , Maheswar , G. , Ram Sagar

Berkeley 59 is a nearby ($\sim$1 kpc) young cluster associated with the Sh2-171 H{\sc ii} region. We present deep optical observations of the central $\sim$2.5$\times$2.5 pc$^2$ area of the cluster, obtained with the 3.58-m Telescopio…

Solar and Stellar Astrophysics · Physics 2018-01-10 Neelam Panwar , A. K. Pandey , Manash R. Samal , Paolo Battinelli , K. Ogura , D. K. Ojha , W. P. Chen , H. P. Singh

- Context: We present the results of a near-infrared photometric and spectroscopic study of the star forming region G61.48+0.09. - Aims: The purpose of this study is to characterize the stellar content of the cluster and to determine its…

Astrophysics of Galaxies · Physics 2015-05-13 A. Marin-Franch , A. Herrero , A. Lenorzer , F. Najarro , S. Ramirez , A. Font-Ribera , D. Figer

We present a multi-wavelength analysis of the young star cluster Berkeley 59 (Be 59) based on the $Gaia$ data and deep infrared (IR) observations with the 3.58-m Telescopio Nazionale Galileo and $Spitzer$ space telescope. The mean proper…

Astrophysics of Galaxies · Physics 2024-06-13 Neelam Panwar , Rishi C. , Saurabh Sharma , Devendra K. Ojha , Manash R. Samal , H. P. Singh , Ram Kesh Yadav

We present a statistical and multiwavelength photometric studies of young open cluster IC 1590. We identified 91 cluster members using $Gaia$ DR3 astrometry data using ensemble-based unsupervised machine learning techniques. From $Gaia$…

Astrophysics of Galaxies · Physics 2024-02-26 A. H. Sheikh , Biman J. Medhi

Using UBVRI Halpha CCD photometric observations and the archival NIR and X-ray data, we have carried out a multi-wavelength study of a young star cluster NGC 7419. An age of 22.5+/-3.0 Myr and a distance of 3230^{+330}_{-430} pc are derived…

Astrophysics · Physics 2009-11-13 Himali Joshi , Brijesh Kumar , K. P. Singh , Ram Sagar , Saurabh Sharma , J. C. Pandey

The post-starburst region B in M82 and its massive star cluster component have been the focus of multiple studies, with reports that there is a large population of coeval clusters of age ~1 Gyr, which were created with a Gaussian initial…

We present a photometric and spectroscopic study of the young open cluster NGC 7419, which is know to host a large number of classical Be stars for reasons not well understood. Based on CCD photometric observations of 327 stars in UBV…

Astrophysics · Physics 2009-11-11 Annapurni Subramaniam , Blesson Mathew , Bhuwan Chandra Bhatt , S. Ramya

We present the analysis of the stellar content of NGC~2282, a young cluster in the Monoceros constellation, using deep optical $BVI$ and IPHAS photometry along with infrared (IR) data from UKIDSS and $Spitzer$-IRAC. Based on the stellar…

Solar and Stellar Astrophysics · Physics 2015-10-28 Somnath Dutta , S. Mondal , J. Jose , R. K. Das , M. R. Samal , S. Ghosh

Emission-line stars in young open clusters are identified to study their properties, as a function of age, spectral type and their evolutionary state. 207 open star clusters were observed using slitless spectroscopy method and 157 emission…

Astrophysics · Physics 2009-11-13 Blesson Mathew , Annapurni Subramaniam , Bhuwan Chandra Bhatt

We present optical photometric and polarimetric observations of stars towards NGC 1931 with the aim to derive the cluster parameters such as distance, reddening, age and luminosity/mass function as well as to understand the dust properties…

Solar and Stellar Astrophysics · Physics 2015-06-12 A. K. Pandey , C. Eswaraiah , Saurabh Sharma , M. R. Samal , N. Chauhan , W. P. Chen , J. Jose , D. K. Ojha , Ram Kesh Yadav , H. C. Chandola

We present a multiwavelength study of the NGC 281 complex which contains the young cluster IC 1590 at the center, using deep wide-field optical UBVI_c photometry, slitless spectroscopy along with archival data sets in the near-infrared…

Astrophysics of Galaxies · Physics 2015-06-04 Saurabh Sharma , A. K. Pandey , J. C. Pandey , N. Chauhan , K. Ogura , D. K. Ojha , J. Borrissova , H. Mito , T. Verdugo , B. C. Bhatt

Recent near- and mid-infrared surveys have brought evidence that the Milky Way continues to form massive clusters. We carry out a program to determine the basic physical properties of the new massive cluster candidate [DBS2003]179.…

Astrophysics · Physics 2009-11-13 J. Borissova , V. D. Ivanov , M. M. Hanson , L. Georgiev , D. Minniti , R. Kurtev , D. Geisler

Using recently acquired HST NIR observations (J, Pa$\beta$ and H bands) of the nearby galaxy NGC1313, we investigate the timescales required by a young star cluster to emerge from its natal cloud. We search for extincted star clusters,…

Astrophysics of Galaxies · Physics 2021-03-17 M. Messa , D. Calzetti , A. Adamo , K. Grasha , K. E. Johnson , E. Sabbi , L. J. Smith , V. Bajaj , M. K. Finn , Z. Lin

We use archival {\it Hubble Space Telescope} observations of broad-band images from the ultraviolet (F255W-filter) through the near infrared (NICMOS F160W-filter) to study the star cluster population of the interacting spiral galaxy M51. We…

Astrophysics · Physics 2009-11-10 N. Bastian , M. Gieles , H. J. G. L. M. Lamers , R. de Grijs , R. A. Scheepmaker
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