J/ApJS/104/71 UBV photometry of OB associations in LMC superbubbles (Oey 1996)
UBV photometry of OB associations within superbubbles of the
Large Magellanic Cloud
Oey M.S.
<Astrophys. J. Suppl. Ser. 104, 71 (1996)>
=1996ApJS..104...71O 1996ApJS..104...71O
ADC_Keywords: Magellanic Clouds ; Nebulae ; H II regions ; Photometry, UBV
Keywords: H II regions - ISM: bubbles - Magellanic Clouds -
open clusters ans associations: general
Abstract:
This work presents UBV photometry of the stellar populations
associated with seven superbubble nebulae and five classical H II
regions in the Large Magellanic Cloud. Although the nebular morphology
of the superbubbles appears to be substantially evolved compared to
the classical nebulae, the color-magnitude diagrams do not reveal any
noticeable correlation between the resident stellar population and
nebular morphology. The photometry presented here will be used in a
forthcoming paper to examine further the stellar content and dynamics
of these superbubbles.
Description:
Tables 4a-m provide the photometry for the OB associations of the
sample, including both superbubbles and diffuse H II regions. Notes
for individual objects are:
DEM 31: Photometry for D31-2001 (Sk -67 17) listed from
Ardeberg et al. (1972A&AS....6..249A 1972A&AS....6..249A)
DEM 106: Stars with prefix D106A- have V photometry from a separate,
short exposure.
DEM 192: Stars with prefix D192A- have V photometry from a separate,
short exposure.
DEM 301: Photometry for D301-1005 listed from Massey et al.
(1995ApJ...438..188M 1995ApJ...438..188M)
Postscript versions of the plates in Figure 1 of the printed paper
are included. Each is a V image of the OB association field,
with bright stars identified. The remaining stars can be identified
with the aid of coordinates given in Table 4a-m. Each individual
frame is 3.8' x 3.8' square, with north up and east to the left.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4a.dat 76 1000 Photometry for DEM 25
table4b.dat 76 1033 Photometry for DEM 31
table4c.dat 76 2455 Photometry for DEM 50
table4d.dat 76 274 Photometry for DEM 106
table4e.dat 76 1488 Photometry for DEM 192
table4f.dat 76 651 Photometry for DEM 226
table4g.dat 76 265 Photometry for DEM 231
table4h.dat 76 1117 Photometry for DEM 301
table4i.dat 76 674 Photometry for DEM 10b
table4j.dat 76 708 Photometry for DEM 66
table4k.dat 76 951 Photometry for DEM 197
table4l.dat 76 287 Photometry for DEM 243
table4m.dat 76 269 Photometry for DEM 293
figure1a.ps 60 60371 V image for DEM 25
figure1b.ps 60 41179 V image for DEM 31
figure1c.ps 60 56820 V image for DEM 50
figure1d.ps 60 30794 V image for DEM 106
figure1e.ps 60 62033 V image for DEM 192
figure1f.ps 60 30794 V image for DEM 226
figure1g.ps 60 31120 V image for DEM 231
figure1h.ps 60 67627 V image for DEM 301
figure1i.ps 60 31120 V image for DEM 10b
figure1j.ps 60 31120 V image for DEM 66
figure1k.ps 60 31120 V image for DEM 197
figure1l.ps 60 34519 V image for DEM 243
figure1m.ps 60 31120 V image for DEM 293
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Byte-per-byte Description of file: table4*.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- ID *Star identification
12 I1 h RAh Right ascension (J2000.0)
14- 15 I2 min RAm Right ascension (J2000.0)
17- 21 F5.2 s RAs Right ascension (J2000.0)
23 A1 --- DE- Declination sign
24- 25 I2 deg DEd Declination (J2000.0)
27- 28 I2 arcmin DEm Declination (J2000.0)
30- 33 F4.1 arcsec DEs Declination (J2000.0)
35- 42 F8.3 mag Vmag V magnitude
44- 48 F5.3 mag e_Vmag *[]? Error in Vmag
50- 56 F7.3 mag B-V B-V color
58- 62 F5.3 mag e_B-V *[]? Error in B-V
64- 70 F7.3 mag U-B []? U-B color
72- 76 F5.3 mag e_U-B *[]? Error in U-B
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Note on ID:
Star identification. Stars with a and b components are
spectroscopic binaries, whose V magnitude has been estimated as
described in the printed paper. However, the colors listed for both
components are the original, combined colors determined for the
composite object. The DAOPHOT errors for these objects are
misleading, and have been deleted.
Note on e_Vmag, e_B-V, e_U-B:
These are the photometric errors computed by DAOPHOT and do not
include systematic effects such as those introduced by aperture
corrections and transformation errors.
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Origin: AAS CD-ROM series, Volume 6, 1996 Lee Brotzman [ADS] 03-May-96
(End) [CDS] 06-Sep-1996