2003AJ....126.1925R

Query : 2003AJ....126.1925R

2003AJ....126.1925R - Astron. J., 126, 1925-1932 (2003/October-0)

Fragmentation of globules in H II regions: Hubble space telescope images of Thackeray's globules.

REIPURTH B., RAGA A. and HEATHCOTE S.

Abstract (from CDS):

We present Hubble Space Telescope WFPC2 images through an Hα filter of Thackeray's globules in the southern H II region IC 2944. The images document the state of the globule complex during its current highly dynamical phase of breakup. A population of very small and short-lived splinters suggests that continuous fragmentation must play an important role in increasing the surface-to-mass ratio of the neutral gas, thus accelerating the processes of photoevaporation and photoablation. We are not able to single out which of various theoretical mechanisms for breakup is operating in the globule complex.

Abstract Copyright: ∼

Journal keyword(s): ISM: Dust, Extinction - ISM: H II Regions - ISM: Clouds - ISM: Globules - ISM: Kinematics and Dynamics

CDS comments: Figs: various features 'NN' are not in SIMBAD.

Simbad objects: 7

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Number of rows : 7
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 Cl* IC 2944 THA 1 * 11 38 15.6085688044 -63 21 50.669554545   12.979 12.754 13.110   ~ 6 0
2 Cl* IC 2944 THA 18 PoC 11 38 18.21 -63 21 08.7     13.21     ~ 4 0
3 IC 2944 OpC 11 38 20.00 -63 22 22.0           ~ 191 0
4 HD 101205 ** 11 38 20.36114 -63 22 21.8889 5.64 6.53 6.54 7.41   O6V 164 0
5 ARMA 126 PoC 11 38 29.9 -63 21 12   15.72 14.99     ~ 3 0
6 ARMA 127 PoC 11 38 32.8 -63 20 00   15.67 14.86     ~ 3 0
7 M 16 OpC 18 18 45.1 -13 47 31           ~ 1084 1

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