J/AJ/133/917 HST photometry of two NGC 4214 clusters (Ubeda+, 2007)
The young stellar population of NGC 4214 as observed with the Hubble Space
Telescope. I. Data and methods.
Ubeda L., Maiz-Apellaniz J., Mackenty J.W.
<Astron. J., 133, 917-931 (2007)>
=2007AJ....133..917U 2007AJ....133..917U (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, nearby ; Associations, stellar ; Photometry, HST
Keywords: galaxies: individual (NGC 4214) - galaxies: star clusters -
galaxies: stellar content - stars: early-type -
stars: luminosity function, mass function
Abstract:
We present the data and methods that we have used to perform a
detailed UV-optical study of the nearby dwarf starburst galaxy
NGC 4214 using multifilter Hubble Space Telescope WFPC2 and STIS
photometry. We explain the process followed to obtain high-quality
photometry and astrometry of the stellar and cluster populations of
this galaxy. We describe the procedure used to transform magnitudes
and colors into physical parameters using spectral energy
distributions. The data show the existence of both young and old
stellar populations that can be resolved at the distance of NGC 4214
(2.94Mpc), and we perform a general description of those populations.
Description:
The WFPC2 images were acquired in two programs: 6569 (principal
investigator [PI]: J. MacKenty) and 6716 (PI: T. Stecher).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 103 14385 Photometry of stars in LIST336
table3.dat 59 21614 Photometry of stars in LIST814
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Hour of Right Ascension (J2000)
4- 5 I2 min RAm Minute of Right Ascension (J2000)
7- 12 F6.3 s RAs Second of Right Ascension (J2000)
14 A1 --- DE- Sign of Declination (J2000)
15- 16 I2 deg DEd Degree of Declination (J2000)
18- 19 I2 arcmin DEm Arcminute of Declination (J2000)
21- 26 F6.3 arcsec DEs Arcsecond of Declination (J2000)
28- 32 F5.2 mag F336W HST/WFPC2 F336W band magnitude
34- 37 F4.2 mag e_F336W Error in F336W (1)
39- 43 F5.2 mag F170W ? HST/WFPC2 F170W band magnitude
45- 48 F4.2 mag e_F170W ? Error in F170W (1)
50- 54 F5.2 mag F555W ? HST/WFPC2 F555W band magnitude
56- 59 F4.2 mag e_F555W ? Error in F555W (1)
61- 65 F5.2 mag F702W ? HST/WFPC2 F702W band magnitude
67- 70 F4.2 mag e_F702W ? Error in F702W (1)
72- 76 F5.2 mag F814W ? HST/WFPC2 F814W band magnitude
78- 81 F4.2 mag e_F814W ? Error in F814W (1)
83- 87 F5.2 mag CN182 ? HST/STIS F25CN182 band magnitude
89- 92 F4.2 mag e_CN182 ? Error in CN182 (1)
94- 98 F5.2 mag CN270 ? HST/STIS F25CN270 band magnitude
100-103 F4.2 mag e_CN270 ? Error in CN270 (1)
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Note (1): The photometric uncertainties are determined for each star based
upon statistical errors, sky determination errors and aperture
correction errors.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Hour of Right Ascension (J2000)
4- 5 I2 min RAm Minute of Right Ascension (J2000)
7- 12 F6.3 s RAs Second of Right Ascension (J2000)
14 A1 --- DE- Sign of Declination (J2000)
15- 16 I2 deg DEd Degree of Declination (J2000)
18- 19 I2 arcmin DEm Arcminute of Declination (J2000)
21- 26 F6.3 arcsec DEs Arcsecond of Declination (J2000)
28- 32 F5.2 mag F814W HST/WFPC2 F814W band magnitude
34- 37 F4.2 mag e_F814W Error in F814W (1)
39- 43 F5.2 mag F555W HST/WFPC2 F555W band magnitude
45- 48 F4.2 mag e_F555W Error in F555W (1)
50- 54 F5.2 mag F702W HST/WFPC2 F702W band magnitude
56- 59 F4.2 mag e_F702W Error in F702W (1)
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Note (1): The photometric uncertainties are determined for each star based
upon statistical errors, sky determination errors and aperture
correction errors.
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Nomenclature note:
Objects identified as [UMM2007] JHHMMSS.sss+DDMMSS.sss in Simbad
History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 08-Jan-2009