2000ApJ...540L..53T

Query : 2000ApJ...540L..53T

2000ApJ...540L..53T - Astrophys. J., 540, L53-L56 (2000/September-1)

Star formation in clusters: early subclustering in the Serpens core.

TESTI L., SARGENT A.I., OLMI L. and ONELLO J.S.

Abstract (from CDS):

We present high-resolution interferometric and single-dish observations of molecular gas in the Serpens cluster-forming core. Star formation does not appear to be homogeneous throughout the core, but is localized in spatially and kinematically separated subclusters. The stellar (or protostellar) density in each of the subclusters is much higher than the mean for the entire Serpens cluster. This is the first observational evidence for the hierarchical fragmentation of protocluster cores suggested by cluster formation models.

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Journal keyword(s): ISM: Clouds - Radio Continuum: ISM - Stars: Formation

Nomenclature: Fig.1: [TSO2000] CSNN (Nos CS1-CS12). Fig.3, Table 1: [TSO2000] N2H+ A (Nos A-D).

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 11

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Number of rows : 11
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 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
2 HH 460 HH 18 29 38.6 +01 18 24           ~ 11 1
3 SH 2-68 N Y*O 18 29 48.09 +01 16 45.0           ~ 161 1
4 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1195 1
5 GCNM 23 Y*O 18 29 49.63 +01 15 21.9           ~ 291 2
6 V* V371 Ser Or* 18 29 51.21240 +01 16 39.4860           ~ 132 1
7 2MASS J18295688+0114463 Or* 18 29 56.8848005064 +01 14 46.304766672   17.6       K8.0 106 0
8 NAME Serpens Cluster As* 18 29 57 +01 14.4           ~ 66 0
9 NAME Serpens SMM 4 cor 18 29 57.1 +01 13 15           ~ 143 0
10 IRAS 18274+0112 Y*O 18 29 57.73680 +01 14 05.6940           M4: 143 2
11 NAME SERPENS SMM 3 Y*O 18 29 59.28 +01 14 01.7           ~ 111 1

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