1995A&A...301..407D

Query : 1995A&A...301..407D

1995A&A...301..407D - Astronomy and Astrophysics, volume 301407-418 (1995/9-2)

The initial mass function and the dynamical evolution of open clusters. I. Conservative systems.

DE LA FUENTE MARCOS R.

Abstract (from CDS):

The influence of the initial mass function (IMF) on the evolution of open clusters is analyzed using numerical integrations of N-body systems which include tidal effects and formation of multiple systems. Five different IMFs are used for generating stellar masses. The results confirm significant differences with single mass models and allow us to distinguish between the standard power law models and modern ones. An approximate analytic expression for the escape rate is derived in order to fit the data obtained. The population of multiple systems is discussed briefly and some questions concerning multicomponent clusters, such as preferential evaporation of light stars, are reviewed.

Abstract Copyright: ∼

Journal keyword(s): chaotic phenomena - celestial mechanics, stellar dynamics - Galaxy: kinematics and dynamics - Galaxy: open clusters and associations: general - stars: luminosity function, mass function

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	IC 2391	OpC	08 41 17.5	-53 03 00						~	871	0

Query : 1995A&A...301..407D

Basic data :

IC 2391 -- Open Cluster
Other object types:	`OpC (2013A&A,OCl)`, `Cl* (2020A&A,C,...)`, `As* (2019AJ,Escorial,...)`, `* (IC)`
ICRS coord. (ep=J2000) :	`08 41 17.5 -53 03 00 (Optical) [ ] E 2023A&A...674A..37G`
FK4 coord. (ep=B1950 eq=1950) :	`08 39 51.6 -52 52 15 [ ]`
Gal coord. (ep=J2000) :	`270.4450 -06.7581 [ ]`
Proper motions mas/yr :	`-24.927 23.256 [0.080 0.110 90] B` `2018A&A...616A..10G`
Radial velocity / Redshift / cz :	`V(km/s) 15.58 [0.48] / z(spectroscopic) 0.000052 [0.000002] / cz 15.58 [0.48] (Opt) A 2021A&A...647A..19T`
Parallaxes (mas):	`6.597 [0.007] B` `2018A&A...616A..10G`
Angular size (arcmin):	`97.7 97.7 0 (Opt) D` `2020A&A...633A..99C`

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`IC 2391`	`Escorial 31`	`[KC2019] Theia 114`
`C 0838-528`	`NAME omi Vel Cluster`	`[KPR2004b] 202`
`Cl VDBH 42`	`OCl 767.0`	`[KPS2012] MWSC 1529`

References (871 between 1850 and 2026) (Total 871)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Data at NED - NASA/IPAC Extragalactic Database : IC 2391

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