Far infra-red emission from NGC7078: First detection of intra-cluster dust in a globular cluster

被引：40

作者：

Evans, A ^{[1
]}

Stickel, M

van Loon, JT

Eyres, SPS

Hopwood, MEL

Penny, AJ

机构：

[1] Univ Keele, Sch Chem & Phys, Astrophys Grp, Keele ST5 5BG, Staffs, England

[2] Max Planck Inst Astron, D-69117 Heidelberg, Germany

[3] CCLRC Rutherford Appleton Lab, Space Sci & Technol Dept, Didcot OX11 0QX, Oxon, England

[4] Univ Cent Lancashire, Ctr Astrophys, Preston PR1 2HE, Lancs, England

来源：

ASTRONOMY & ASTROPHYSICS | 2003年 / 408卷 / 01期

关键词：

globular clusters : general; infrared : general; globular clusters : individual : NGC7078; ISM : general; HORIZONTAL-BRANCH; M15; SEARCH;

D O I：

10.1051/0004-6361:20031139

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Improved data analysis of far infrared imaging data of the globular cluster NGC 7078 obtained with the ISO instrument ISOPHOT at 60 mum, 70 mum and 90 mum has detected the thermal emission from dust in its core, the first secure detection of intra-cluster dust in a globular cluster. The amount of dust is broadly consistent with mass-loss from evolved, metal-deficient stars in NGC 7078 in the time since it last crossed the Galactic plane.

引用

页码：L9 / L12

页数：4

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