J/A+A/396/473 VI Photometry in M81 Group (Makarova+ 2002)
Tidal dwarfs in the M81 group : the second generation?
Makarova L.N., Grebel E.K., Karachentsev I.D., Dolphin A.E.,
Karachentseva V.E., Sharina M.E., Geisler D., Guhathakurta P., Hodge P.W.,
Sarajedini A., Seitzer P.
<Astron. Astrophys. 396, 473 (2002)>
=2002A&A...396..473M 2002A&A...396..473M
ADC_Keywords: Clusters, galaxy ; Photometry, Cousins
Keywords: galaxies: dwarf - galaxies: photometry - galaxies: stellar content -
galaxies: interactions - galaxies: individual: M81 group -
galaxies: evolution
Abstract:
We derive quantitative star formation histories of the four suspected
tidal dwarf galaxies in the M 81 group, Holmberg IX, BK3N, Arp-loop
(A0952+69), and Garland, using Hubble Space Telescope/Wide Field
Planetary Camera 2 images in F606W and F814W obtained as part
of a Snapshot survey of dwarf galaxies in the Local Universe.
Description:
Stellar photometry results for Holmberg IX, BK 3N, Arp-loop, and
Garland are presented in the table.
Objects:
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RA (2000) DE Designation(s)
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09 57 30.1 +69 02 52 Holmberg IX = UGC 5336
09 53 48.0 +68 58 06 BK 3N = SPB 113
09 57 32.6 +69 17 00 Arp loop = Anon 0952+69
10 03 42.8 +68 41 27 Garland = LEDA 29167
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1a.dat 26 1631 Stellar photometry of Holmberg IX
table1b.dat 26 287 Stellar photometry of BK 3N
table1c.dat 26 241 Stellar photometry of Arp-loop
table1d.dat 26 3222 Stellar photometry of Garland
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Byte-by-byte Description of file: table1*.dat
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Bytes Format Units Label Explanations
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2 I1 -- Chip [0/3] WFPC2 chip number (1)
4- 8 F5.1 pix Xpos X coordinate of a star in pixels (2)
10- 14 F5.1 pix Ypos Y coordinate of a star in pixels
16- 20 F5.2 mag Vmag Magnitude of the star in Cousins V filter
22- 26 F5.2 mag Imag Magnitude of the star in Cousins I filter
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Note (1): WFPC2 chip number:
0: Planetary Camera
1: Wide Field chip 2
2: Wide Field chip 3
3: Wide Field chip 4
Note (2): Zeropoint of the coordinates is bottom left corner of the each chip.
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Acknowledgements: Makarova Lidia
(End) Lidia Makarova [SAO, Russia] 23-Oct-2002