Interferometric 890 m Images of High Redshift Submillimeter Galaxies

1
Interferometric 890 ?m Images of High Redshift
Submillimeter Galaxies
D. Iono1,2, A. B. Peck1, A. Pope3, C. Borys4, D.
Scott3, D. J. Wilner1, M. Gurwell1, P. T. P. Ho1,
M. S. Yun5, S. Matsushita6, G. R. Petitpas1, J.
S. Dunlop7, M. Elvis1, A. Blain4, E. Le Floch8
arXivastro-ph/0602226 v1 10 Feb 2006
1Harvard-Smithsonian CfA, 60 Garden St.,
Cambridge, MA 02138 2National Astronomical
Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo
181-8588 d.iono_at_nao.ac.jp 3Dept. of Physics
Astro., UBC, Vancouver, BC, V6T 1Z1 4California
Institute of Technology, Pasadena, CA
91125 5Dept. of Astronomy, Univ. of Mass.,
Amherst, MA 01003 6Academia Sinica Institute of
Astronomy and Astrophysics, P.O. Box 23-141,
Taipei 106, Taiwan, R.O.C. 7Institute for
Astronomy, University of Edinburgh, Royal
Observatory, Blackford Hill, Edinburgh
EH9 3HJ 8Steward Observatory, 933 N. Cherry Ave,
Tucson, AZ 85721
High Redshift Galaxy Formation Lunch Talk Oct.
27, 2006
2
Interferometric 890 ?m Images of High Redshift
Submillimeter Galaxies
D. Iono1,2, A. B. Peck1, A. Pope3, C. Borys4, D.
Scott3, D. J. Wilner1, M. Gurwell1, P. T. P. Ho1,
M. S. Yun5, S. Matsushita6, G. R. Petitpas1, J.
S. Dunlop7, M. Elvis1, A. Blain4, E. Le Floch8
arXivastro-ph/0602226 v1 10 Feb 2006
1Harvard-Smithsonian CfA, 60 Garden St.,
Cambridge, MA 02138 2National Astronomical
Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo
181-8588 d.iono_at_nao.ac.jp 3Dept. of Physics
Astro., UBC, Vancouver, BC, V6T 1Z1 4California
Institute of Technology, Pasadena, CA
91125 5Dept. of Astronomy, Univ. of Mass.,
Amherst, MA 01003 6Academia Sinica Institute of
Astronomy and Astrophysics, P.O. Box 23-141,
Taipei 106, Taiwan, R.O.C. 7Institute for
Astronomy, University of Edinburgh, Royal
Observatory, Blackford Hill, Edinburgh
EH9 3HJ 8Steward Observatory, 933 N. Cherry Ave,
Tucson, AZ 85721
High Redshift Galaxy Formation Lunch Talk Oct.
27, 2006
3
Submillimeter Galaxies

• Why are sub/millimeter galaxies important?
• The Cosmic FIR background nearly equals the
  extragalactic optical/UV background ?
  dust-obscured star formation
• What do we know about sub/millimeter galaxies?
• Irregular morphologies
• z ? 1 subset ?z? 2.3
• Tdust 40 K, L 1013 Lsolar
• MH2 1010 Msolar Mdynamical 1011 Msolar
• SFR 103 Msolar yr-1
• ?1/3 host AGN hard X-rays, broad Balmer lines,
  warm mid-IR colors
• What do we need?
• Large surveys (? CCAT)
• Angular resolution (? CCAT ALMA)
• Redshifts
• Luminosity function
• Accurate Tdust, MH2
• ?Comprehensive galaxy formation models

UV Chapman et al.
UV Chapman et al.
K-band Fox et al.
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Interferometric 890 ?m Images of High Redshift
Submillimeter Galaxies
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Interferometric 890 ?m Images of High Redshift
Submillimeter Galaxies

• SMMJ123711622212
• z 3-4 from B dropout (B 27.2?0.4, V
  25.2?0.1, i 24.4?0.1)
• 850 ?m discovery in GOODS N field
• S890?m 22.9?2.8 mJy

6 kpc

• MIPS J142824352619
• z 1.325
• (3.2?0.7)x1013 Lsolar
• S890?m 18.4?2.5 mJy
• Spectroscopic interloper _at_ z 1.034

10 kpc
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Interferometric 890 ?m Images of High Redshift
Submillimeter Galaxies
Neither source is resolved
Probes large scales
Probes small scales
lt1.2
6.0
1.2
2.0
lt1.2
? 2.35-1(?FWHM) 2.35-1(?/D) 2.35-1(?/k?)
2.35-1k-1 (rad)
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Interferometric 890 ?m Images of High Redshift
Submillimeter Galaxies

• Conclusions
• Astrometry good to 0.1 and 0.15
• Sources unresolved
• SMMJ123711622212 V-band and submm 0.8 offset
  either no V-band emission from submm galaxy or
  there are two separate interacting galaxies
• MIPS J142824352619 Lensing possible lower
  limit to SFD 180 Msolar yr-1 kpc-1
• Additional
• Submillimeter inteferometry of many high-redshift
  galaxies will be difficult before the
  commissioning of ALMA