Planetary nebulae as dynamical tracers: Mass-to-light-ratio gradients in early-type galaxies

被引：0

作者：

Napolitano, N. R. ^{[1
]}

Romanowsky, A. J. ^{[2
]}

Capaccioli, M. ^{[3
]}

Kuijken, K. ^{[1
,4
]}

Merrifield, M. R. ^{[2
]}

Douglas, N. G.

Arnaboldi, M. ^{[5
]}

Freeman, K. C. ^{[6
]}

Gerhard, O. ^{[7
]}

机构：

[1] Kapteyn Astron Inst, NL-9700 AV Groningen, Netherlands

[2] Univ Nottingham, Sch Phys & Astron, Nottingham, England

[3] INAF, Observ Capodimote, Naples, Italy

[4] Leiden Univ, Leiden, Netherlands

[5] INAF, Observ Pino, Turin, Italy

[6] RSAA, Mt Stromlo & Siding Spring Observ, Canberra, ACT, Australia

[7] Univ Basel, Dept Astron, Basel, Switzerland

来源：

PLANETARY NEBULAE BEYOND THE MILKY WAY | 2006年

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Planetary Nebulae (PNe) have enabled mass-to-light ratios (M/L) in early-type galaxies to be constrained to unprecedented distance from the center, showing in some cases clear evidence of increasing M/L, in other cases fairly constant M/L. We combine the information obtained from PN kinematics with radially extended long-slit spectroscopy data in order to constrain the M/L trends in a heterogeneous sample of early-type galaxies. We discuss whether these trends are expected in the Lambda CDM framework of galaxy formation.

引用

页码：324 / +

页数：2

共 50 条

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