NTT follow-up observations of star cluster candidates from the FSR catalogue

NTT follow-up observations of star cluster candidates from the FSR catalogue
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NTT 对 FSR 目录中候选星团的后续观测

DOI:
10.1111/j.1365-2966.2008.13849.x
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发表时间:
2008
影响因子:
4.8
通讯作者:
Froebrich D
Froebrich D
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Froebrich D

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我们正在进行一个大型的计划,新发现的银河系星星集群候选人从Froebrich等人的名单进行分类。在这里,我们提出了深近红外(NIR)的后续观测从欧洲南方天文台新技术望远镜(ESO/NTT)的14个星星集群候选人。我们表明,来自深近红外成像的星星密度图(SDM)和颜色-颜色/星等图的组合分析是一个可行的工具,可靠地分类新的星团。这使我们能够在我们的目标中识别出两个拥有大质量恒星的年轻星团,三个中间年龄的疏散星团和两个球状星团候选者。剩下的七个天体不太可能是星团。其中包括FSR 1767,它以前被Bonatto等人使用2微米全天巡天(2 MASS)数据确定为球状星团。我们的新分析表明,FSR 1767不是一个星星星团。我们还总结了目前可用的后续分析的FSR候选人,并得出结论,该目录可能包含大量的新的恒星星团,可能占主导地位的老疏散星团。
We are conducting a large program to classify newly discovered Milky Way star cluster candidates from the list of Froebrich et al. Here, we present deep near-infrared (NIR) follow-up observations from European Southern Observatory–New Technology Telescope (ESO/NTT) of 14 star cluster candidates. We show that the combined analysis of star density maps (SDMs) and colour–colour/magnitude diagrams derived from deep NIR imaging is a viable tool to reliably classify new stellar clusters. This allowed us to identify two young clusters with massive stars, three intermediate age open clusters and two globular cluster candidates among our targets. The remaining seven objects are unlikely to be stellar clusters. Among them is the object FSR 1767 which has previously been identified as a globular cluster using Two-Micron All-Sky Survey (2MASS) data by Bonatto et al. Our new analysis shows that FSR 1767 is not a star cluster. We also summarize the currently available follow-up analysis of the FSR candidates and conclude that this catalogue may contain a large number of new stellar clusters, probably dominated by old open clusters.
FSR 584——银河系中的一个新球状星团?
DOI: 10.1051/0004-6361:20078029
发表时间: 2007
影响因子: 6.5
作者:
E. Bica;C. Bonatto;S. Ortolani;B. Barbuy
通讯作者: B. Barbuy
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DOI: 10.1111/j.1365-2966.2006.10436.x
发表时间: 2006
影响因子: 4.8
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FSR 0190:另一个古老的遥远星系团
DOI: 10.1111/j.1745-3933.2007.00409.x
发表时间: 2008
期刊: Letters
影响因子: --
作者:
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DOI: 10.1111/j.1365-2966.2008.12863.x
发表时间: 2007
影响因子: 4.8
作者:
E. Bica;C. Bonatto
通讯作者: C. Bonatto
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DOI: 10.1111/j.1365-2966.2007.12812.x
发表时间: 2007
影响因子: 4.8
作者:
E. Bica;C. Bonatto;D. Camargo
通讯作者: D. Camargo