A populous intermediate-age open cluster and evidence of an embedded cluster among the FSR globular cluster candidates
A populous intermediate-age open cluster and evidence of an embedded cluster among the FSR globular cluster candidates
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FSR 球状星团候选者中人口稠密的中年疏散星团和嵌入星团的证据
DOI:
10.1111/j.1365-2966.2008.12863.x
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发表时间:
2007
影响因子:
4.8
通讯作者:
C. Bonatto
中科院分区:
文献类型:
--
作者:
E. Bica;C. Bonatto
We study the nature of the globular cluster (GC) candidates FSR 1603 and FSR 1755 selected from the catalogue of Froebrich, Scholz & Raftery. Their properties are investigated with Two-Micron All-Sky Survey field-star decontaminated photometry, which is used to build colour‐magnitude diagrams (CMDs) and stellar radial density profiles. FSR 1603 has the open cluster Ruprecht 101 as optical counterpart, and we show it to be a massive intermediate-age cluster. Relevant parameters of FSR 1603 are the age ≈1 Gyr, distance from the Sun d� ≈ 2.7 kpc, Galactocentric distance RGC ≈ 6.4 kpc, core radius RC ≈ 1.1 pc, mass function slope χ ≈ 1.8, observed stellar mass (for stars with mass in the range 1.27 m 2.03 M� ) Mobs ≈ (5)
DOI:
10.1111/j.1745-3933.2007.00409.x
发表时间:
2008
期刊:
Letters
影响因子:
--
作者:
Froebrich D
通讯作者:
Froebrich D