J/A+A/433/751 BR photometry of nearby Southern dwarf galaxies (Makarova+, 2005)
Imaging and photometry of nearby dwarf galaxies. II. Southern dwarfs.
Makarova L.N., Karachentsev I.D., Grebel E.K., Harbeck D., Korotkova G.G.,
Geisler D.
<Astron. Astrophys., 433, 751-756 (2005)>
=2005A&A...433..751M 2005A&A...433..751M
ADC_Keywords: Galaxies, nearby ; Photometry, CCD
Keywords: galaxies: dwarf - galaxies: photometry - galaxies: irregular -
galaxies: general - galaxies: evolution
Abstract:
We carried out CCD photometry in the Johnson-Cousins B and R bands
of 23 dwarf galaxies: SDIG, ESO 410-17, KK11, ESO 245-05, KKs3, KK27,
KK38, KK40, IC 4662, KK244, KK246, KK247, KK248, KK249, KK253, KK255,
KK256, KK257, KK258, KK259, UGCA 438, ESO 347-17, and UGCA 442. Both
isolated galaxies and members of the Sculptor group and the NGC 1313
group were observed. The galaxy sample is characterized by a median
distance of 9.3Mpc, and median absolute magnitude of -14.8mag. The
central surface brightnesses are in the range from 22.2 to
24.4mag/arcsec2 in B.
Description:
The galaxies were selected from the lists of Karachentseva &
Karachentsev (1998, Cat. J/A+AS/127/409, 2000A&AS..146..359K 2000A&AS..146..359K).
Some nearby dwarf objects from the ESO catalog (Lauberts, 1982,
Cat. VII/34) were added to the observational program. These
objects were observed using the 1.5-m telescope at the Cerro Tololo
Inter-American Observatory (CTIO) in Chile from 30 August 2000 to 1
September 2000.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 64 23 Observational log of the dwarf galaxies
table2.dat 100 23 General parameters of the observed galaxies
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See also:
VII/34 : ESO/Uppsala Survey of the ESO(B) Atlas (Lauberts 1982)
J/A+AS/127/409 : New nearby dwarf galaxy candidates list (Karachentseva+ 1998)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name Object name
15- 24 A10 "DD-MM-YYYY" Date Observation Date
26 A1 --- B [B] B for Johnson B filter
28- 34 A7 --- ExpTimeB Exposition time (s) in B filter
36- 38 F3.1 arcsec SeeingB Seeing for B filter
40- 44 F5.3 --- AirmassB Airmass for B filter
46 A1 --- R [R] R for Kron-Cousins R filter
48- 54 A7 --- ExpTimeR Exposition time (s) in R filter
56- 58 F3.1 arcsec SeeingR Seeing for R filter
60- 64 F5.3 --- AirmassR Airmass for R filter
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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- 12 A12 --- Name Object name
15- 16 I2 h RAh Right ascension (J2000)
18- 19 I2 min RAm Right ascension (J2000)
21- 24 F4.1 s RAs Right ascension (J2000)
26 A1 --- DE- Declination sign (J2000)
27- 28 I2 deg DEd Declination (J2000)
30- 31 I2 arcmin DEm Declination (J2000)
33- 34 I2 arcsec DEs Declination (J2000)
36- 39 A4 --- MType Morphological type
41- 44 I4 km/s RVLG ?=- Radial velocity with respect to the
Local Group centroid (1)
46 I1 --- r_RVLG ? Reference for RVLG (2)
48- 52 F5.2 Mpc Dist ?=- Distance to the galaxy
54- 57 A4 --- n_Dist Method used to determined Dist (3)
58- 61 F4.2 mag AB Galactic extinction in the B-band from
Schlegel et al. (1998ApJ...500..525S 1998ApJ...500..525S)
63- 67 F5.2 mag BTmagN ?=- Integrated apparent magnitude in the
B-band from NED
68 A1 --- u_BTmagN Uncertainty flag on BTmagN
70 I1 --- r_BTmagN ? Reference for BTmagN (2)
72- 76 F5.2 mag BTmag Integrated Johson B-magnitude from our
measurements
77 A1 --- u_BTmag Uncertainty flag on BTmag
79- 82 F4.2 mag (B-R)T Integrated (B-R) Johnson-Cousins colour
index from our photometry
83 A1 --- u_(B-R)T Uncertainty flag on (B-R)T
85- 88 F4.1 mag/arcsec+2 SuBrB0 Central surface brightness in the B-band (4)
89 A1 --- u_SuBrB0 Uncertainty flag on SuBrB0
91- 93 F3.1 arcmin aHolm Holmberg diameter
95-100 F6.2 mag BMAG ?=- Absolute B magnitude of the galaxy
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Note (1): Radial velocity with respect to the Local Group centroid with the
apex parameters from Karachentsev & Makarov (1996PAZh...22..510K 1996PAZh...22..510K).
The source of the radial velocity is NED or other recent sources,
as noted in the table
Note (2): References as follows:
1 = Cote et al., 1997AJ....114.1313C 1997AJ....114.1313C
2 = Fouque et al., 1992, Catalogue of Optical Radial Velocities,
Observatories de Lyon et Paris-Meudon, 1, 1
3 = Huchtmeier et al., 2000, Cat. J/A+AS/141/469
4 = Lauberts and Valentijn, 1989, Cat. VII/34
5 = Maddox et al., 1990MNRAS.243..692M 1990MNRAS.243..692M
6 = da Costa et al., 1991ApJS...75..935D 1991ApJS...75..935D
7 = de Vaucouleurs et al., RC3, Cat. VII/155
Note (3): Methods as follows:
tf = from the Tully-Fisher relation
mem = from membership in the known groups
rgb = from the luminosity of the tip of red giant branch
h = from the Hubble relation with the Hubble parameter H0=72km/s/Mpc
Note (4): The surface brightness values were estimated by eye from
the surface brightness profiles
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History:
From electronic version of the journal
References:
Makarova et al., Paper I 2002A&A...384...72M 2002A&A...384...72M
(End) Patricia Vannier [CDS] 25-Jul-2006