J/ApJ/627/621 Catalog of Extremely Red Objects (Sawicki+, 2005)
Properties of extremely red objects in an overdense region.
Sawicki M., Stevenson M., Barrientos L.F., Gladman B., Mallen-Ornelas G.,
Van Den Bergh S.
<Astrophys. J., 627, 621-631 (2005)>
=2005ApJ...627..621S 2005ApJ...627..621S (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Infrared sources ; Photometry, infrared
Keywords: galaxies: clusters: general - galaxies: evolution -
galaxies: high-redshift - galaxies: statistics - infrared: galaxies
Abstract:
We use a serendipitously discovered overdensity of extremely red
objects (EROs) to study the morphologies and cumulative surface number
density of EROs in a dense environment. Our extremely deep imaging
allows us to select very faint EROs, reaching KS=21, or ∼2mag
fainter than the L* of passively evolving ellipticals at z=1.5.
Description:
Our field, centered on RA=19h24m11s, DE=-20°58'40" (J2000.0), is
located in the ecliptic and close to the Galactic plane with Galactic
coordinates l=17°20'06", b=-16°21'18". The R-band imaging was
obtained on 2000 July 26-28 using the European Southern Observatory
(ESO) VLT 8.2m Unit Telescopes Antu and Kueyen as part of a search for
faint solar system objects. The KS data were obtained in service
mode using ISAAC on the 8.2m VLT Unit Telescope 1 Antu during five
nights between 2002 April 1 and 2002 May 8. ISAAC's short-wavelength
(12.5m) camera is equipped with a 1kx1k Hg:Cd:Te array with 0.148"
pixels, yielding an instantaneous field of view of 2.5'x2.5'.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 54 101 ERO (Extremely Red Objects) catalog
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See also:
J/ApJ/581/844 : Radio and Infrared observations of EROs (Smail+, 2002)
J/MNRAS/330/1 : HST observations of Extremely Red Objects (Smith+, 2002)
J/MNRAS/346/1125 : IK photometry of faint Extremely Red Objects
(Gilbank+, 2003)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- [SSB2005b] Source identification number
6- 7 I2 h RAh Hour of Right Ascension (J2000) (1)
9- 10 I2 min RAm Minute of Right Ascension (J2000) (1)
12- 17 F6.3 s RAs Second of Right Ascension (J2000) (1)
19 A1 --- DE- Sign of the Declination (J2000) (1)
20- 21 I2 deg DEd Degree of Declination (J2000) (1)
23- 24 I2 arcmin DEm Arcminute of Declination (J2000) (1)
26- 31 F6.3 arcsec DEs Arcsecond of Declination (J2000) (1)
33- 37 F5.2 mag Ksmag The Ks band magnitude
39- 42 F4.2 mag e_Ksmag Uncertainty in Ksmag
44- 47 F4.2 mag R-Ks The (R-Ks) color index
49- 52 F4.2 mag e_R-Ks Uncertainty in R-Ks
54 A1 --- Class [RU] Star-galaxy separation: as Resolved
or Uncertain
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Note (1): Positions taken from the World Coordinate System of the R-band image.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 06-Dec-2005