Access to Astronomical Catalogues

← Click to display the menu
J/ApJ/586/765       HST K-selected extremely red galaxies    (Yan+, 2003)

Hubble Space Telescope WFPC2 morphologies of K-selected extremely red galaxies. Yan L., Thompson D. <Astrophys. J. 586, 765 (2003)> =2003ApJ...586..765Y
ADC_Keywords: Galaxies, IR ; Morphology ; Photometry, infrared Keywords: galaxies: elliptical and lenticular, cD - galaxies: fundamental parameters - galaxies: high-redshift - galaxies: spiral Abstract: We selected 115 extremely red objects (EROs) from deep Hubble Space Telescope (HST) WFPC2 archive data combined with ground-based K-band images, with (F814W-Ks)≥4, K-band signal-to-noise ratio ≥5, and a median limiting Ks magnitude of ∼18.7, over a corresponding area of 228 arcmin2, for a morphological study of the ERO galaxy population. The survey covered a total of ∼409-arcmin2 over 77 separate WFPC2 fields. This is the first complete sample of bright EROs with high-resolution HST morphologies. Description: The data used in this survey come from two sources. Deep, high-resolution HST/WFPC2 F814W images from archival data, specifically from the Medium Deep Survey (MDS; Griffith et al., 1994ApJ...435L..19G; Ratnatunga, Griffiths, & Ostrander, 1999AJ....118...86R), are used for the optical data set. Images in the Ks band were obtained from the Palomar 60 inch telescope for a total of 77 MDS fields. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 33 77 Observations table2.dat 96 115 Extremely Red Galaxies
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) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 7 A7 --- MDS MDS field designation 9- 10 I2 --- ERO ERO number 12- 16 F5.2 mag KsLim Ks limiting magnitude (1) 18- 21 F4.2 arcsec FWHM FWHM 23- 27 I5 s ExpTKs Ks band exposure time 29- 33 I5 s ExpTF814W F814W band exposure time
Note (1): The Ks limiting magnitudes are derived from the sky noise in the center of each infrared mosaic image and are quoted as 5σ limits for a point source within an aperture diameter 2.5 times the FWHM of the seeing.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [YT2003] Sequential number 5- 13 A9 --- MDS MDS identifier, [YT2003] "MDS" in Simbad (1) 15- 16 I2 h RAh Right ascension (J2000) 18- 19 I2 min RAm Right ascension (J2000) 21- 27 F7.4 s RAs Right ascension (J2000) 29 A1 --- DE- Declination sign (J2000) 30- 31 I2 deg DEd Declination (J2000) 33- 34 I2 arcmin DEm Declination (J2000) 36- 41 F6.3 arcsec DEs Declination (J2000) 43- 47 F5.2 mag Ksmag Ks magnitude 49- 52 F4.2 mag I-Ks I-Ks colour index 54- 57 F4.1 mag e_Ksmag rms uncertainty on Ks 59- 62 F4.1 mag e_Imag ?=99.9 rms uncertainty on I 64- 65 A2 --- YT YT morphological class (2) 67- 68 A2 --- MT MDS morphological class (2) 70- 96 A27 --- Com Comments
Note (1): This identifier is written in Simbad as [YT2003] aaaNN-NNN, [YT2003] aNaNN-NNN, [YT2003] aNaaN-NNN, [YT2003] aNNNN-NNN or [YT2003] aaNNN-NNN Note (2): Morphological class as follows: BD = bulge-dominated system B = pure bulge galaxy DB = disky systems with some evidence of a bulge D = disk U = unclassifiable G = not specified in the paper S = Stellar core ID = disky irregular IU = irregular unclassifiable
History: From electronic version of the journal
(End) James Marcout, Patricia Bauer [CDS] 22-May-2003
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

catalogue service

© UDS/CNRS

Contact