2008MNRAS.383.1241P


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.18CET04:10:07

2008MNRAS.383.1241P - Mon. Not. R. Astron. Soc., 383, 1241-1258 (2008/January-3)

Stellar contents and star formation in the young star cluster Be 59.

PANDEY A.K., SHARMA S., OGURA K., OJHA D.K., CHEN W.P., BHATT B.C. and GHOSH S.K.

Abstract (from CDS):

We present UBV Ic CCD photometry of the young open cluster Be 59 with the aim to study the star formation scenario in the cluster. The radial extent of the cluster is found to be ∼10 arcmin (2.9 pc). The interstellar extinction in the cluster region varies between E(B - V) ≃ 1.4 to 1.8 mag. The ratio of total-to-selective extinction in the cluster region is estimated as 3.7±0.3. The distance of the cluster is found to be 1.00±0.05 kpc. Using near-infrared (NIR) colours and slitless spectroscopy, we have identified young stellar objects (YSOs) in the open cluster Be 59 region. The ages of these YSOs range between <1 and ∼2 Myr, whereas the mean age of the massive stars in the cluster region is found to be ∼2 Myr. There is evidence for second-generation star formation outside the boundary of the cluster, which may be triggered by massive stars in the cluster. The slope of the initial mass function, Γ, in the mass range 2.5 < M/M≤ 28 is found to be -1.01±0.11 which is shallower than the Salpeter value (-1.35), whereas in the mass range 1.5 < M/M ≤ 2.5 the slope is almost flat. The slope of the K-band luminosity function is estimated as 0.27±0.02, which is smaller than the average value (∼0.4) reported for young embedded clusters. Approximately 32 per cent of Hα emission stars of Be 59 exhibit NIR excess indicating that inner discs of the T Tauri star (TTS) population have not dissipated. The Midcourse Space Experiment (MSX) and IRAS-HIRES images around the cluster region are also used to study the emission from unidentified infrared bands and to estimate the spatial distribution of optical depth of warm and cold interstellar dust.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): open clusters and associations: individual: Be 59 - stars: formation - stars: luminosity function, mass function - stars: pre-main-sequence

VizieR on-line data: <Available at CDS (J/MNRAS/383/1241): table2.dat table3.dat>

Nomenclature: Table 2: Cl* Berkeley 59 PSO NNNN (Nos 1-5944). Table 3: Cl* Berkeley 59 PSOHA NN (Nos 1-48).

Status in Simbad:  could be processed

Simbad objects: 27

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Number of rows : 27

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 [YF92] C1 PoC 00 00 23.0 +67 20 18           ~ 4 0
2 [YF92] C2 PoC 00 00 59.6 +67 34 02           ~ 5 0
3 NGC 7822 HII 00 01 08.58 +67 25 17.0           ~ 112 3
4 V* V747 Cep Al* 00 01 46.8679211513 +67 30 25.102163893 11.6 11.38 10.07     O5.5V(n)((f)) 40 0
5 Ass Cep OB 4 As* 00 02 +67.7           ~ 67 1
6 Cl Berkeley 59 OpC 00 02 14 +67 25.0           ~ 68 0
7 2MASS J00021503+6729270 pr* 00 02 15.0443451208 +67 29 27.133767125   20.685 19.024   15.988 ~ 2 0
8 2MASS J00022443+6728198 pr* 00 02 24.4362179496 +67 28 19.772829284   20.049 17.366   14.329 ~ 2 0
9 IRAS 00002+6647 FIR 00 02 43.03440 +67 03 27.6372           ~ 4 0
10 IRAS 00025+6708 FIR 00 05 07.4 +67 24 45           ~ 5 0
11 DG 1 RNe 00 06 06.3 +67 15 27           ~ 7 0
12 NGC 654 OpC 01 44 00 +61 53.1   7.34 6.5     ~ 179 0
13 NGC 663 OpC 01 46 09 +61 14.1   7.78 7.1     ~ 235 0
14 IC 348 OpC 03 44 34 +32 09.8           ~ 1212 1
15 SA 95- reg 03 53 21.0 -00 01 10           ~ 81 0
16 NGC 1893 OpC 05 22 44 +33 24.7   7.90 7.5     ~ 228 0
17 Cl Collinder 69 OpC 05 35 06 +09 56.0     2.8     ~ 221 0
18 NAME sigma Orionis Cluster MGr 05 38 42 -02 36.0           ~ 477 0
19 NGC 2264 OpC 06 40 58 +09 53.7     3.9     ~ 1564 1
20 NGC 2362 OpC 07 18 41 -24 57.3     4.1     ~ 358 0
21 NGC 3603 HII 11 15 24 -61 15.0           ~ 929 2
22 NAME Upper Sco Association As* 16 12 -23.4           ~ 975 1
23 M 16 OpC 18 18 48 -13 48.4   6.58 6.0     ~ 926 2
24 IC 5146 SFR 21 53 24 +47 16.0   7.82 7.2     ~ 380 2
25 BD+66 1661 * 23 57 32.6037579168 +67 33 15.291758540 9.33 9.41 8.76     O9.2V 54 0
26 IRAS 23568+6706 Cld 23 59 25.8 +67 23 39           ~ 27 0
27 BD+67 1585 * 23 59 57.6564162856 +67 51 17.904246965 10.82 10.92 10.33     B5 11 0

    Equat.    Gal    SGal    Ecl

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2020.02.18-04:10:07

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