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Issue A&A
Volume 378, Number 1, October IV 2001
Page(s) 70 - 75
Section Extragalactic astronomy
DOI http://dx.doi.org/10.1051/0004-6361:20011120



A&A 378, 70-75 (2001)
DOI: 10.1051/0004-6361:20011120

The extended counterpart of submm source Lockman 850.1

D. Lutz1, J. S. Dunlop2, O. Almaini2, P. Andreani3, 1, A. Blain4, A. Efstathiou5, M. Fox5, R. Genzel1, G. Hasinger6, 1, D. Hughes7, R. J. Ivison8, A. Lawrence2, R. G. Mann2, S. Oliver9, J. A. Peacock2, D. Rigopoulou1, M. Rowan-Robinson5, S. Scott2, S. Serjeant10 and L. Tacconi1

1  Max-Planck-Institut für extraterrestrische Physik, Postfach 1312, 85741 Garching, Germany
2  Institute for Astronomy, Department of Physics & Astronomy, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UK
3  Osservatorio Astronomico di Padova, vicolo dell'Osservatorio 5, 35122 Padova, Italy
4  Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
5  Astrophysics Group, Imperial College London, Blackett Laboratory, Prince Consort Road, London SW7 2BZ, UK
6  AIP, An der Sternwarte 16, 14482 Potsdam, Germany
7  Instituto Nacional de Astrofisica, Optica y Electronica (INAOE), Apartado Postal 51 y 216, 72000 Puebla, Pue., Mexico
8  UK ATC, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK
9  Astronomy Centre, University of Sussex, Falmer, Brighton BN1 9QJ, UK
10  Unit for Space Sciences and Astrophysics, University of Kent, Canterbury, Kent CT2 7NR, UK

(Received 11 June 2001 / Accepted 6 August 2001 )

Abstract
The IRAM Plateau de Bure mm interferometer and deep K-band imaging have been used to identify the brightest submm source detected in the Lockman field of the UK 8 mJy SCUBA survey. The near infrared counterpart is an extended (20-30 kpc), clumpy, and extremely red object. The spectral energy distribution suggests it to be a dusty star forming object at a redshift of about 3 (2-4). Its star formation rate and near-infrared properties are consistent with Lockman 850.1 being a massive elliptical in formation.


Key words: galaxies: active -- galaxies: individual: Lockman 850.1 -- galaxies: starburst -- infrared: galaxies

Offprint request: D. Lutz, lutz@mpe.mpg.de

SIMBAD Objects



© ESO 2001


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