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Identification of SCUBA Sources With ISOCAM

Published online by Cambridge University Press:  25 September 2002

M. Giard ,
J.P. Bernard ,
A. Klotz ,
I. Ristorcelli ,
Y. Sato ,
K. Kawara ,
Y. Sofue ,
L.L. Cowie ,
D.B. Sanders  and
Y. Taniguchi
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Y. Sato*
Affiliation:
Institute of Astronomy, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan
K. Kawara
Affiliation:
Institute of Astronomy, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan
Y. Sofue
Affiliation:
Institute of Astronomy, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan
L.L. Cowie
Affiliation:
Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822, USA
D.B. Sanders
Affiliation:
Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822, USA
Y. Taniguchi
Affiliation:
Astronomical Institute, Graduate School of Science, Tohoku University, Aramaki, Aoba, Sendai 980-8578, Japan
H. Matsuhara
Affiliation:
Institute of Space and Astronautical Sciences, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan
H. Okuda
Affiliation:
Gunma Astronomical Observatory, 6860-86 Nakayama, Takayama, Agatsuma, Gunma 377-0702, Japan
*
[email protected]
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Abstract

Faint submillimeter sources detected with JCMT/SCUBAhave faced an identification problem due to their broad beam profiles.Here we propose a new method to identify these sourcesat the mid-infrared utilizing a finer point spread function.ISOCAM has provided us a very deep 6.7 μm image of the Hawaii Deep Field SSA13.For all three 850 μm sources in this field,we have found their 6.7 μm counterparts.All of them have been identified with interacting galaxy pairs at the optical.Two of the pairs are very faint and red (I>24, I - K > 4),one of the two has the hard X-ray detection with Chandra.Assuming an Arp 220 SED,we have found a typical redshift of z ~ 2.This requiresthat the sources should be a few times more luminous than Arp 220.It appears that extremely high star formation ratesare occurring in galaxies at high redshiftwith massive stellar contents already in place.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 4: Infrared and Submillimeter Space Astronomy: An International Colloquium to Honor the Memory of Guy Serra , 2002 , pp. 187
Copyright
© EAS, EDP Sciences, 2002

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