C.D.S. - SIMBAD4 rel 1.7 - 2019.08.25CEST01:22:34

2007A&A...462..157P - Astronomy and Astrophysics, volume 462, 157-162 (2007/1-4)

Investigating star formation in the young open cluster NGC 6383.


Abstract (from CDS):

By studying young open clusters, the mechanisms important for star formation over several Myr can be examined. For example, accretion rate as a function of rotational velocity can be investigated. Similarly, sequential star formation triggered by massive stars with high mass-loss rates can be studied in detail. We identified and characterized probable members of NGC 6383, as well as determined cluster parameters. New Stroemgren uvby CCD photometry, obtained by us, is presented. This new data, together with Johnson UBV and 2MASS data in the NIR, was used to investigate characteristics of pre- as well as zero age main sequence cluster members. We present Stroemgren uvby CCD photometry for 272 stars in the field of NGC 6383 and derive its reddening, E(b-y)=0.21(4)mag, as well as distance, d=1.7(3)kpc from the Sun. Several stars with NIR excess and objects in the domain of the classical Herbig Ae/Be and T Tauri stars were detected. Two previously known variables were identified as rapidly-rotating PMS stars. The field population is clearly separated from the probable members in the color-magnitude diagram. NGC 6383 is a young open cluster, with an age of less than 4Myr, undergoing continuous star formation. True pre-main sequence members might be found down to absolute magnitudes of +6mag, with a variety of rotational velocities and stellar activities.

Abstract Copyright:

Journal keyword(s): stars: pre-main sequence - stars: early-type - stars: formation - open clusters and associations: individual: NGC 6383

VizieR on-line data: <Available at CDS (J/A+A/462/157): table1.dat>

Nomenclature: Table 1: Cl* NGC 6383 PNZ NNN N=272 among (Nos 1-337).

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
1 IC 4651 OpC 17 24 49 -49 56.0   7.76 6.9     ~ 305 0
2 HD 159176 SB* 17 34 42.4926595872 -32 34 53.964439199 4.88 5.74 5.70 7.19   O7V((f))+O7V((f)) 238 0
3 NGC 6383 OpC 17 34 48 -32 34.0   5.56 5.5     ~ 135 0

    Equat.    Gal    SGal    Ecl

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