J/AJ/125/1352 Ursa Minor dSph M,T2, DDO51 photometry (Palma+, 2003)
Exploring halo substructure with giant stars.
IV. The extended structure of the Ursa minor dwarf spheroidal galaxy.
Palma C., Majewski S.R., Siegel M.H., Patterson R.J., Ostheimer J.C.,
Link R.
<Astron. J. 125, 1352 (2003)>
=2003AJ....125.1352P 2003AJ....125.1352P
ADC_Keywords: Galaxies, photometry
Keywords: galaxies: evolution - galaxies: halos -
galaxies: individual (Ursa Minor) - galaxies: photometry -
galaxies: structure
Abstract:
We present a large-area photometric survey of the Ursa Minor dwarf
spheroidal galaxy and its environs. This survey is intended to trace
the distribution of stars outside the nominal tidal radius of this
system. Observations were made with the Washington M, Washington T2,
and DDO51 filters, which in combination have been shown to provide
reliable stellar luminosity classification for K-type stars.
Description:
Observations of Ursa Minor were obtained with the Mayall 4m telescope
at Kitt Peak National Observatory on the nights of 1999 May 24 to 26.
The detector in use was the Mosaic camera, a 4x2 array of 2048x4096
pixel CCDs, which provides a 36'x36' field of view. Data on Ursa Minor
were taken during photometric conditions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 68 1194 Ursa Minor candidate RGB and BHB star photometry
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See also:
J/AJ/124/3222 : VI photometry of Draco and UMi galaxies (Bellazzini+, 2002)
J/AJ/90/2221 : UMi dwarf galaxy BV photometry (Olszewski+, 1985)
J/ApJ/663/960 : Radial velocities of Leo I stars (Sohn+, 2007)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 7 I7 --- [PMS2003b] Star identification number
9- 10 I2 h RAh Hour of right ascension (J2000)
12- 13 I2 min RAm Minute of right ascension (J2000)
15- 19 F5.2 s RAs Second of right ascension (J2000)
20 A1 --- DE- Sign of declination (J2000)
21- 22 I2 deg DEd Degree of declination (J2000)
24- 25 I2 arcmin DEm Arcminute of declination (J2000)
27- 30 F4.1 arcsec DEs Arcsecond of declination (J2000)
32- 36 F5.2 mag Mmag The Washington M-band magnitude (508.5nm)
38- 41 F4.2 mag e_Mmag Error in Mmag
43- 47 F5.2 mag T2mag The Washington T2 band magnitude (788.5nm)
49- 52 F4.2 mag e_T2mag Error in T2mag
54- 58 F5.2 mag DDO51 The DDO51-band magnitude (1)
60- 63 F4.2 mag e_DDO51 Error in DDO51
65- 67 A3 --- Type Stellar type (2)
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Note (1): An intermediate-band filter centered at 515nm that measures the
strength of the MgH + Mg b triplet feature in the stellar spectrum.
Note (2): Stellar type is
rgb = Red giant branch star;
bhb = Blue horizontal-branch star.
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History:
From electronic version of the journal
References:
Majewski et al., Paper I 2000AJ....120.2550M 2000AJ....120.2550M
Majewski et al., Paper II 2000AJ....119..760M 2000AJ....119..760M
Kundu et al., Paper III 2002ApJ...576L.125K 2002ApJ...576L.125K
Crane et al. 2003ApJ...594L.119C 2003ApJ...594L.119C
Rocha-Pinto et al. 2004ApJ...615..732R 2004ApJ...615..732R
Majewski et al., Paper VI 2005AJ....130.2677M 2005AJ....130.2677M, Cat. J/AJ/130/2677
Munoz et al. 2005ApJ...631L.137M 2005ApJ...631L.137M
Westfall et al., Paper VIII 2006AJ....131..375W 2006AJ....131..375W
Munoz et al. 2006ApJ...650L..51M 2006ApJ...650L..51M
Sohn et al., Paper X 2007ApJ...663..960S 2007ApJ...663..960S, Cat. J/ApJ/663/960
Munoz et al., Paper XI 2006ApJ...649..201M 2006ApJ...649..201M, Cat. J/ApJ/649/201
Majewski et al. 2012ApJ...747L..37M 2012ApJ...747L..37M
Sheffield et al., Paper XIV 2014ApJ...793...62S 2014ApJ...793...62S, Cat. J/ApJ/793/62
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 26-May-2003