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J/A+A/514/A60      Galaxies of J0454-0309 lensing fossil group (Schirmer+, 2010)

J0454-0309: evidence of a strong lensing fossil group falling into a poor galaxy cluster. Schirmer M., Suyu S., Schrabback T., Hildebrandt H., Erben T., Halkola A. <Astron. Astrophys., 514, A60-60 (2010)> =2010A&A...514A..60S
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry ; Keywords: galaxies: evolution - galaxies: clusters: individual: J0454-0309 - galaxies: formation Abstract: We have discovered a strong lensing fossil group (J0454) projected near the well-studied cluster MS0451-0305. Using the large amount of available archival data, we compare J0454 to normal groups and clusters. A highly asymmetric image configuration of the strong lens enables us to study the substructure of the system. We used multicolour Subaru/Suprime-Cam and CFHT/Megaprime imaging, together with Keck spectroscopy to identify member galaxies. A VLT/FORS2 spectrum was taken to determine the redshifts of the brightest elliptical and the lensed arc. Using HST/ACS images, we determined the group's weak lensing signal and modelled the strong lens system. This is the first time that a fossil group is analysed with lensing methods. The X-ray luminosity and temperature were derived from XMM-Newton data. Description: We serendipitously discovered J0454 in deep Subaru/Suprime-Cam images of MS0451. Images were taken in nine different nights during six periods between 2001-01-22 and 2006-12-21 (PIs: H. Ebeling, N. Yasuda, G. Kosugi). We complemented the BVRIz Subaru/Suprime-Cam data with u*griz CFHT/Megaprime images, which improves the photometric redshifts as a result of the presence of u*-band. Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------- 04 54 10.9 -03 01 07 MS0451-0305 = ClG 0451.6-0305 ---------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea1.dat 79 64 Members of J0454, ordered by increasing separation r from E0454
Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Seq Sequential number, [SSS2010] NN in Simbad 3 A1 --- n_Seq [*] additional galaxy (1) 5- 6 I2 h RAh Right ascension (J2000) 8- 9 I2 min RAm Right ascension (J2000) 11- 15 F5.2 s RAs Right ascension (J2000) 17 A1 --- DE- Declination sign (J2000) 18- 19 I2 deg DEd Declination (J2000) 21- 22 I2 arcmin DEm Declination (J2000) 24- 27 F4.1 arcsec DEs Declination (J2000) 29- 32 F4.2 arcmin r Separation from the giant elliptical galaxy E0454 34- 38 F5.2 mag Imag Subaru/I Suprime-Cam Ic magnitude 40- 43 F4.2 mag B-V Subaru/Suprime-Cam B-V colour index 45- 48 F4.2 mag V-I Subaru/Suprime-Cam V-I colour index 50- 55 F6.2 mag gMAG CFHT/Megaprime absolute g magnitude after extinction- and k-correction 57- 62 F6.2 mag iMAG CFHT/Megaprime absolute i magnitude after extinction- and k-correction 64- 67 F4.2 --- zph Photometric redshift 69- 75 F7.5 --- zsp ?=- Spectrsocpic redshift 77- 79 A3 --- MType Morphological type (2)
Note (1): * indicates that it was not photometrically selected, but added based on the HST/ACS data and was done visually. Note (2): The morphological classification is based on the HST/ACS data and was done visually.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 24-Mar-2011
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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