J/AJ/130/1083 HST photometry in the wing of the SMC (McCumber+, 2005)
Stellar populations in the wing of the Small Magellanic Cloud from Hubble Space
Telescope photometry.
McCumber M.P., Garnett D.R., Dufour R.J.
<Astron. J., 130, 1083-1096 (2005)>
=2005AJ....130.1083M 2005AJ....130.1083M
ADC_Keywords: Magellanic Clouds ; Photometry, HST ; Photometry, UBVRI
Keywords: galaxies: evolution - galaxies: individual (Small Magellanic Cloud) -
galaxies: irregular - galaxies: stellar content
Abstract:
We have used the Wide Field Planetary Camera 2 (WFPC2) on the Hubble
Space Telescope to image a star field in the wing of the Small
Magellanic Cloud (SMC), near the HII region N81. The images were taken
in the F336W, F547M, F675W, and F814W filters. From photometry of
stars in this field, we construct color-magnitude diagrams (CMDs) for
about 4200 stars and compare them with theoretical isochrones.
Description:
The observations we obtained were taken by the HST Wide Field
Planetary Camera 2 (WFPC2) on 1999 October 26. The observations are
of a star field and cluster located at 1h08m11.98s -73°19'27.78"
(J2000.0). This field was imaged in parallel with Space Telescope
Imaging Spectrograph (STIS) spectroscopy of the nearby HII region
N81 in the eastern wing of the SMC.
Objects:
--------------------------------------------------
RA (2000) DE Designation(s)
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01 08 11.98 -73 14 27.8 Eastern SMC Wing Cluster
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 39 1547 F336W photometric information
table5.dat 39 4502 F547M photometric information
table6.dat 39 5386 F675W photometric information
table7.dat 39 6711 F814W photometric information
table8.dat 53 4153 Identified stars and photometric information
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See also:
J/AJ/116/2395 : BV photometry in five SMC clusters (Mighell+, 1998)
J/AJ/127/1531 : Star formation history of SMC (Harris+, 2004)
J/ApJ/562/303 : Old Stellar Populations of the SMC (Dolphin+ 2001)
Byte-by-byte Description of file: table4.dat table5.dat table6.dat table7.dat
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Bytes Format Units Label Explanations
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1 I1 --- WFPC2 The WFPC2 chip number
3- 9 F7.3 pix Xpos The X pixel coordinate (1pix∼0.1")
11- 17 F7.3 pix Ypos The Y pixel coordinate (1pix∼0.1")
19- 25 F7.3 mag dmag The instrumental magnitude in Band (1)
27- 33 F7.3 mag e_dmag The 1σ error in mag (1)
35- 39 A5 --- Band Filter (2)
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Note (1): In units of -2.5*log(counts/sec).
Note (2): F336W, F547M, F675W, and F814W filters
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1 I1 --- WFPC2 The WFPC2 chip number
3- 9 F7.3 pix Xpos The X pixel coordinate (1pix∼0.1")
11- 17 F7.3 pix Ypos The Y pixel coordinate (1pix∼0.1")
19- 24 F6.3 mag V-I The (V-I) color
26- 31 F6.3 mag Vmag The V band magnitude
33- 37 F5.3 mag e_Vmag The 1σ error in Vmag
39- 44 F6.3 mag Imag The I band magnitude
46- 50 F5.3 mag e_Imag The 1σ error in Imag
52 A1 --- FC [FC] Field or Cluster assignment
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History:
From electronic version of the journal
* Note that the position quoted in the paper (01:08:11.98-73:19:27.78)
is off by 5'.
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 03-Nov-2005