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J/ApJ/581/844       Radio and Infrared observations of EROs  (Smail+, 2002)

The diversity of Extremely Red Objects. Smail I., Owen F.N., Morrison G.E., Keel W.C., Ivison R.J., Ledlow M.J. <Astrophys. J., 581, 844-864 (2002)> =2002ApJ...581..844S
ADC_Keywords: Clusters, galaxy ; Infrared sources ; Photometry, infrared ; Radio sources Keywords: cosmology: observations - galaxies: clusters: individual (A851, Cl 0939+4713) - galaxies: evolution - galaxies: starburst - infrared: galaxies Abstract: We present the results from a sensitive multiwavelength analysis of the properties of extremely red objects (EROs). Our analysis employs deep RIzJHK photometry of an 8.5'x8.5' region to select a sample of 68 EROs with (R-K)≥5.3 and brighter than K=20.5 (5σ). We combine this photometric data set with an extremely deep 1.4GHz radio map of the field obtained from the VLA. This map reaches a 1σ limiting flux density of 3.5µJy , making it the deepest 1.4GHz map taken, and is sensitive enough to detect an active galaxy with L1.4≳1023W/Hz at z>1. Description: The radio image of A851 comprises a combination of A, B, C, and D configuration observations from the National Radio Astronomy Observatory's VLA taken at 1.4GHz between 1996 and 2000. Our primary near-infrared imaging data set comes from wide-field images in JHK taken with the KPNO 2.1 m telescope on the nights of 2001 January 4-11. On the nights of 1999 February 28, March 0102, and March 1516 we completed a K-band mosaic of 5x5 pointings using the UFTI imager on UKIRT On 2000 December 1112 we used the INGRID near-infrared imager in the WHT to obtain a J-band image of the cluster core. The optical imaging to complement our deep near-infrared data sets was obtained from three facilities. We have two wide-field imaging data sets of this region. The first comes from Suprime-Cam on Subaru (courtesy of T. Kodama) and consists of very deep RI imaging of a 27'x27' field centered on the cluster core, taken on the nights of 2001 January 21-22. We also have obtained similarly a wide-field KPNO 4m image in the z band, obtained on the night of 2001 January 25/26. Finally, an HST/WFPC2 mosaic of A851 has been observed in the F702W filter, but we will not use the HST imaging in our analysis. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 129 68 ERO Catalog
See also: J/MNRAS/330/1 : HST observations of Extremely Red Objects (Smith+, 2002) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 5 I5 --- [SOM2002] Sequential number 6 A1 --- n_[SOM2002] [gh] Note on [SOM2002] (1) 8- 9 I2 h RAh Right ascension (J2000.0) 11- 12 I2 min RAm Right ascension (J2000.0) 14- 19 F6.3 s RAs Right ascension (J2000.0) 21 A1 --- DE- Declination sign (J2000.0) 22- 23 I2 deg DEd Declination (J2000.0) 25- 26 I2 arcmin DEm Declination (J2000.0) 28- 32 F5.2 arcsec DEs Declination (J2000.0) 34- 38 F5.2 mag Kmag Total K magnitude 40 A1 --- l_R-K Limit flag on R-K 41- 44 F4.2 mag R-K Aperture R-K colour index 46 A1 --- l_S1.4GHz Limit flag on S1.4GHz 47- 51 F5.1 uJy S1.4GHz Radio flux at 1.4GHz (or 3σ limit) 53 A1 --- l_Rapmag Limit flag on Rapmag 54- 58 F5.2 mag Rapmag 3" diameter aperture R magnitude 60- 62 F3.2 mag e_Rapmag ? rms uncertainty on Rapmag 64 A1 --- l_Iapmag Limit flag on Iapmag 65- 69 F5.2 mag Iapmag 3" diameter aperture I magnitude 71- 73 F3.2 mag e_Iapmag ? rms uncertainty on Iapmag 75 A1 --- l_Zapmag Limit flag on Zapmag 76- 80 F5.2 mag Zapmag 3" diameter aperture Z magnitude 82- 84 F3.2 mag e_Zapmag ? rms uncertainty on Zapmag 86 A1 --- l_Japmag Limit flag on Japmag 87- 91 F5.2 mag Japmag 3" diameter aperture J magnitude 93- 95 F3.2 mag e_Japmag ? rms uncertainty on Japmag 97 A1 --- l_Hapmag Limit flag on Hapmag 98-102 F5.2 mag Hapmag 3" diameter aperture H magnitude 104-106 F3.2 mag e_Hapmag ? rms uncertainty on Hapmag 108 A1 --- l_Kapmag Limit flag on Kapmag 109-113 F5.2 mag Kapmag 3" diameter aperture K magnitude 115-117 F3.2 mag e_Kapmag ? rms uncertainty on Kapmag 119 A1 --- SED [DEB] Best-fitting model SED (2) 121 A1 --- Morph1 [CIF] Visual morphology from high-resolution K-band imaging (3) 122 A1 --- n_Morph1 [def] Note on Morph1 (4) 123 A1 --- --- [/] 124 A1 --- Morph2 [CIF] Visual morphology from high-resolution R-band imaging (3)
Note (1): Individual notes: g: M star h: transient source Note (2): Best-fitting model SED: D: dusty E: evolved B: badly fitted Note (3): Morphology: C: compact/regular I: disky, disturbed or amorphous F: too faint to classify Note (4): Notes on morphology: d: SMM J09429+4658 (Smail et al., 1999MNRAS.308.1061S). e: ERO Cl 0939+4713 A (Persson et al. 1993, in The Evolution of Galaxies and Their Environments, NASA Tech. Report, ed. M. Shull & H. Thronson (Washington, DC: GPO), 78). f: ERO 333 (Smail et al., 1999ApJ...525..609S).
History: From electronic version of the journal
(End) Patricia Bauer [CDS] 09-Feb-2004
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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