J/AJ/133/2393 UBVRI phot. in seven Local Group dwarfs galaxies (Massey+, 2007)
A survey of Local Group galaxies currently forming stars.
II. UBVRI photometry of stars in seven dwarfs and a comparison of the entire
sample.
Massey P., Olsen K.A.G., Hodge P.W., Jacoby G.H., Mcneill R.T., Smith R.C.,
Strong S.B.
<Astron. J., 133, 2393-2417 (2007)>
=2007AJ....133.2393M 2007AJ....133.2393M
ADC_Keywords: Surveys ; Galaxies, nearby ; Photometry, UBVRI
Keywords: catalogs - galaxies: stellar content - stars: early-type -
supergiants - surveys
Abstract:
We have obtained UBVRI images with the Kitt Peak National Observatory
and Cerro Tololo Inter-American Observatory 4m telescopes and Mosaic
cameras of seven dwarfs in (or near) the Local Group, all of which
have known evidence of recent star formation: IC 10, NGC 6822, WLM,
Sextans B, Sextans A, Pegasus, and Phoenix. We construct
color-magnitude diagrams (CMDs) of these systems, as well as
neighboring regions that can be used to evaluate the degree of
foreground contamination by stars in the Milky Way.
Description:
Three southern galaxies (WLM, NGC 6822, and Phoenix) were observed
with the CTIO Blanco 4m telescope; the other four (IC 10, Sextans B,
Sextans A, and Pegasus) were observed at Kitt Peak with the Mayall 4m.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 146 20663 IC 10 Catalog
table6.dat 146 51877 NGC 6822 Catalog
table7.dat 143 7656 WLM Catalog
table8.dat 129 800 Sextans B Catalog
table9.dat 129 1516 Sextans A Catalog
table10.dat 129 1390 Pegasus Dwarf Catalog
table11.dat 129 4242 Phoenix Dwarf Catalog
table12.dat 143 371781 M31 Catalog
table13.dat 146 146622 M33 Catalog
table18.dat 112 30 IC 10 Members Confirmed by Spectroscopy
table19.dat 112 38 NGC 6822 Members Confirmed by Spectroscopy
table20.dat 109 38 WLM Members Confirmed by Spectroscopy
refs.dat 88 32 References
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See also:
J/AJ/131/2478 : M31 and M33 UBVRI photometry (Massey+, 2006)
Byte-by-byte Description of file: table[5-9].dat table1[0-3].dat
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Bytes Format Units Label Explanations
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1- 20 A20 --- LGGS LGGS Designation (JHHMMSS.ss+DDMMSS.s)
22- 23 I2 h RAh Hour of Right ascension (J2000)
25- 26 I2 min RAm Minute of Right ascension (J2000)
28- 32 F5.2 s RAs Second of Right ascension (J2000)
34 A1 --- DE- Sign of the Declination (J2000)
35- 36 I2 deg DEd Degree of Declination (J2000)
38- 39 I2 arcmin DEm Arcminute of Declination (J2000)
41- 44 F4.1 arcsec DEs Arcsecond of Declination (J2000)
46- 51 F6.3 mag Vmag The V band magnitude
53- 58 F6.3 mag e_Vmag The error in Vmag
60- 65 F6.3 mag B-V The (B-V) color magnitude
67- 72 F6.3 mag e_B-V The error in B-V
74- 79 F6.3 mag U-B ?=99.999 The (U-B) color magnitude
81- 86 F6.3 mag e_U-B ?=99.999 The error in U-B
88- 93 F6.3 mag V-R The (V-R) color magnitude
95-100 F6.3 mag e_V-R The error in V-R
102-107 F6.3 mag R-I ?=99.999 The (R-I) color magnitude
109-114 F6.3 mag e_R-I ?=99.999 The error in R-I
116-117 I2 --- NV Number of V measurements
119-120 I2 --- NB Number of B measurements
122-123 I2 --- NU Number of U measurements
125-126 I2 --- NR Number of R measurements
128-129 I2 --- NI Number of I measurements
131-140 A10 --- SpType MK Spectral Type (if available)
142-146 A5 --- r_SpType References for SpType, in refs.dat file
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Byte-by-byte Description of file: table18.dat table19.dat table20.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- LGGS LGGS designation (JHHMMSS.ss+DDMMSS.s)
21- 22 I2 h RAh Right ascension (J2000.0)
24- 25 I2 min RAm Right ascension (J2000.0)
27- 31 F5.2 s RAs Right ascension (J2000.0)
33 A1 --- DE- Declination sign (J2000.0)
34- 35 I2 deg DEd Declination (J2000.0)
37- 38 I2 arcmin DEm Declination (J2000.0)
40- 43 F4.1 arcsec DEs Declination (J2000.0)
45- 49 F5.2 mag Vmag V magnitude
51- 55 F5.2 mag B-V B-V colour index
57- 61 F5.2 mag U-B ?=99.99 U-B colour index
63- 67 F5.2 mag V-R V-R colour index
69- 73 F5.2 mag R-I ?=99.99 R-I colour index
75- 85 A11 --- SpType MK Spectral type
87 A1 --- Notes [M] "M" denotes multiple cross-identifications
due to crowding
89-103 A15 --- Cross-ID Cross-identifications (1)
105-106 A2 --- n_Cross-ID Note on some Cross-ID (2)
108-112 A5 --- r_Cross-ID References, in refs.dat file
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Note (1):
* For table18.dat (IC10):
Cross-ID as given by the CDS. Note that because of confusion due to
crowding we include multiple possible cross-IDs to several stars.
* For table20.dat (WLM):
Designations "A" and "B" from Bresolin et al. (2006ApJ...648.1007B 2006ApJ...648.1007B)
"SC" from Sandage & Carlson (1985AJ.....90.1464S 1985AJ.....90.1464S).
Note (2): Notes as follows:
b = For the RSGs, we have used the designations of Massey
(1998, Cat. J/ApJ/501/153) cross-referenced when possible
to Kayser (1966, Ph.D. thesis, Caltech)
c = For the W-R stars, we have retained the nomenclature of
Massey & Johnson (1998, Cat. J/ApJ/505/793);
the CDS lists these stars as [AM85] N
d = Designations from Kayser (1966, Ph.D. thesis, Caltech;
"A" refers to her innermost field), some of which are
cross-referenced to Wilson (1992AJ....104.1374W 1992AJ....104.1374W;
"CW," following Massey et al. 1995, Cat. J/AJ/110/2715)
e = Classified as B12 I by Humphreys (1980ApJ...238...65H 1980ApJ...238...65H)
f = Classified as A0 Ia by Humphreys (1980ApJ...238...65H 1980ApJ...238...65H)
g = Classified as B58 I by Humphreys (1980ApJ...238...65H 1980ApJ...238...65H)
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Ref Reference number
4- 22 A19 --- BibCode BibCode
24- 43 A20 --- Aut Author's name
45- 88 A44 --- Com Comments
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History:
* 24-Oct-2008: From electronic version of the journal
* 08-Nov-2009: some corrections in tables 19 and 20
References
Massey et al., Paper I 2006AJ....131.2478M 2006AJ....131.2478M, Cat. J/AJ/131/2478
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 21-Oct-2008