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Issue A&A
Volume 378, Number 1, October IV 2001
Page(s) L10 - L13
Section Letters
DOI http://dx.doi.org/10.1051/0004-6361:20011205



A&A 378, L10-L13 (2001)
DOI: 10.1051/0004-6361:20011205

A close look into an intermediate redshift galaxy using STIS

D. F. de Mello1 and A. Pasquali2

1  Onsala Space Observatory, Chalmers University of Technology, 43992 Onsala, Sweden
2  ESO/ST-ECF, Karl-Schwarzschild-Strasse 2, 85748 Garching bei Muenchen, Germany
    e-mail: apasqual@eso.org

(Received 6 June 2001 / Accepted 26 August 2001 )

Abstract
We present a detailed view of a galaxy at z=0.4 which is part of a large database of intermediate redshifts using high resolution images. We used the STIS parallel images and spectra to identify the object and obtain the redshift. The high resolution STIS image (0.05'') enabled us to analyse the internal structures of this galaxy. A bar along the major axis and hot-spots of star formation separated by 0.37'' (1.6 kpc) are found along the inner region of the galaxy. The analysis of the morphology of faint galaxies like this one is an important step towards estimating the epoch of formation of the Hubble classification sequence.


Key words: faint galaxies -- barred galaxies -- mergers -- galaxy evolution

Offprint request: D. F. de Mello, duilia@oso.chalmers.se

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© ESO 2001


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