J/ApJ/639/724 Tadpole galaxies in the Hubble UDF (Straughn+, 2006)
Tracing galaxy assembly: tadpole galaxies in the Hubble Ultra Deep Field.
Straughn A.N., Cohen S.H., Ryan R.E., Hathi N.P., Windhorst R.A.,
Jansen R.A.
<Astrophys. J., 639, 724-730 (2006)>
=2006ApJ...639..724S 2006ApJ...639..724S
ADC_Keywords: Galaxies, photometry ; Morphology ; Redshifts
Keywords: galaxies: active - galaxies: formation - galaxies: nuclei
Abstract:
In the Hubble Ultra Deep Field (HUDF, Cat. II/258) an abundance
of galaxies is seen with a knot at one end plus an extended tail,
resembling a tadpole. These "tadpole galaxies" appear dynamically
unrelaxed - presumably in an early merging stage - where tidal
interactions likely created the distorted knot-plus-tail morphology.
Here we systematically select tadpole galaxies from the HUDF and study
their properties as a function of their photometric redshifts.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 43 165 Tadpole Sample
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See also:
II/258 : Hubble Ultra Deep Field Catalog (UDF) (STScI, 2004)
J/ApJ/631/85 : Galaxy morphologies in the Hubble UDF (Elmegreen+, 2005)
J/ApJ/612/L93 : Candidates of z∼5.5-7 galaxies in the HST-UDF (Yan+, 2004)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [SCR2006] Running identification number
5- 6 I2 h RAh Hour of Right Ascension (J2000)
8- 9 I2 min RAm Minute of Right Ascension (J2000)
11- 16 F6.3 s RAs Second of Right Ascension (J2000)
18 A1 --- DE- Sign of the Declination (J2000)
19- 20 I2 deg DEd Degree of Declination (J2000)
22- 23 I2 arcmin DEm Arcminute of Declination (J2000)
25- 29 F5.2 arcsec DEs Arcsecond of Declination (J2000)
31- 35 F5.2 --- i'mag HST/ACS F775W band AB magnitude
36 A1 --- f_i'mag [)] Indicates estimated aperture magnitudes
for visually selected objects
38- 41 F4.2 --- z Photometric redshift
43 A1 --- f_z [d] Indicates redshift from Rhoads et al.
(2005ApJ...621..582R 2005ApJ...621..582R)
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 21-Mar-2007