J/AJ/116/1275 UBV photometry in 5 fields of the LMC (Dolphin+, 1998)
Recent star formation in Shapley constellation III in the Large Magellanic Cloud
Dolphin A.E., Hunter D.A.
<Astron. J. 116, 1275 (1998)>
=1998AJ....116.1275D 1998AJ....116.1275D (SIMBAD/NED BibCode)
ADC_Keywords: Magellanic Clouds ; Populations, stellar ; Photometry, UBV ;
Photometry, CCD
Keywords: Magellanic Clouds - galaxies: stellar content - galaxies: formation
Abstract:
We present UBV photometry of four fields within Shapley Constellation
III and one field on the edge of the shell. Our fields cover roughly
20% of the region, mostly in the southern half. Determinations are
made of ages of the fields, the star formation densities, and the
initial mass function (IMF) slopes.
Objects:
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RA (2000) DE Designation(s)
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05 30 40.8 -66 55 33 Field LH 77
05 35 04.7 -66 55 07 Field NGC 2027
05 29 00.2 -66 34 52 Field SL 502
05 31 10.5 -67 16 57 Field NGC 2004
05 26 08.8 -67 29 48 Field NGC 1955
05 10 02.1 -66 36 23 Field BNW
05 40 12.7 -67 11 46 Field BSE
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2a.dat 56 27271 LH 77 Field (5 30 41.7 -66 56 37 (1975))
table2b.dat 56 23996 SL 502 Field (5 28 59.8 -66 36 00 (1975)),
([SL63] 502 in Simbad)
table2c.dat 56 19594 NGC 2027 Field (5 35 05.8 -66 56 01 (1975))
table2d.dat 56 23952 NGC 2004 Field (5 31 12.8 -67 18 00 (1975))
table2e.dat 56 21597 NGC 1955 Field (5 26 11.7 -67 31 02 (1975))
table2f.dat 56 19707 Background SE Field (5 40 15.0 -67 12 29 (1975))
table2g.dat 56 13043 Background NW Field (5 10 00.7 -66 38 12 (1975))
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See also:
J/MNRAS/260/782 : CCD photometry of NGC 2004 and 2100 (Balona+ 1993)
Byte-by-byte Description of file: table2?.dat
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Bytes Format Units Label Explanations
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1- 8 F8.3 pix Xpos X position (1)
10- 17 F8.3 pix Ypos Y position (1)
19- 24 F6.3 mag Umag ? U magnitude
26- 30 F5.3 mag e_Umag ? rms uncertainty on Umag
32- 37 F6.3 mag Bmag ? B magnitude
39- 43 F5.3 mag e_Bmag rms uncertainty on Bmag
45- 50 F6.3 mag Vmag ? V magnitude
52- 56 F5.3 mag e_Vmag rms uncertainty on Vmag
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Note (1): North is to the right, large Xpos;
East is up, large Ypos.
The plate scale is 0.396" per pixel.
In Simbad, sources are identified as [DH98] LH 77 XXXX.xxx-YYYY.yyy,
[DH98] NGC NNNN XXXX.xxx-YYYY.yyy, [DH98] SL 502 XXXX.xxx-YYYY.yyy,
[DH98] BWW XXXX.xxx-YYYY.yyy
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History: From AJ electronic version
(End) James Marcout, Patricia Bauer [CDS] 19-Nov-1998