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Deep optical survey of the stellar content of Sh2-311 region

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dc.contributor.author Yadav, Ram Kesh
dc.contributor.author Pandey, A. K
dc.contributor.author Sharma, Saurabh
dc.contributor.author Jose, J
dc.contributor.author Ogura, K
dc.contributor.author Kobayashi, N
dc.contributor.author Samal, M. R
dc.contributor.author Eswaraiah, C
dc.contributor.author Chandola, H. C
dc.date.accessioned 2020-11-04T08:54:57Z
dc.date.available 2020-11-04T08:54:57Z
dc.date.issued 2015-01
dc.identifier.citation New Astronomy, Vol. 34, pp. 27- 40 en_US
dc.identifier.issn 1384-1076
dc.identifier.uri http://prints.iiap.res.in/handle/2248/6674
dc.description Restricted Access © Elsevier http://www.sciencedirect.com/science/article/pii/S1384107614000761# en_US
dc.description.abstract The stellar content in and around Sh2-311 region have been studied using the deep optical observations as well as near-infrared (NIR) data from 2MASS. The region contains three clusters, viz. NGC 2467, Haffner 18 and Haffner 19. We have made an attempt to distinguish the stellar content of these individual regions as well as to re-determine their fundamental parameters such as distance, reddening, age, onto the basis of a new and more extended optical and infrared photometric data set. NGC 2467 and Haffner 19 are found to be located in the Perseus arm at the distances of 5.0 ± 0.4 kpc and 5.7 ± 0.4 kpc, respectively, whereas Haffner 18 is located at the distance of 11.2 ± 1.0 kpc. The clusters NGC 2467 and Haffner 19 might have formed from the same molecular cloud, whereas the cluster Haffner 18 is located in the outer galactic arm, i.e. the Norma–Cygnus arm. We identify 8 class II young stellar objects (YSOs) using the NIR (J-H)/(H-K) two colour diagram. We have estimated the age and mass of the YSOs identified in the present work and those by Snider et al. (2009) using the V/(V-I) colour-magnitude diagram. The estimated ages and mass range of the majority of the YSOs are ≲1 Myr and ∼0.4–3.5 M⊙, respectively, indicating that these sources could be T-Tauri stars or their siblings. Spatial distribution of the YSOs shows that some of the YSOs are distributed around the Hii region Sh2-311, suggesting a triggered star formation at its periphery. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Stars: Clusters en_US
dc.subject Star Clusters: Individual (Haffner 18, Haffner 19 and NGC 2467) en_US
dc.subject Stars: Pre-main Sequence en_US
dc.subject Stars: Formation en_US
dc.title Deep optical survey of the stellar content of Sh2-311 region en_US
dc.type Article en_US


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