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[CII] line emission in BRI 1335-0417 at z = 4.4

Wagg, J. and Carilli, C. L. and Wilner, D. J. and Cox, P. and de Breuck, C. and Menten, K. and Riechers, D. A. and Walter, F. (2010) [CII] line emission in BRI 1335-0417 at z = 4.4. Astronomy and Astrophysics, 519 . L1. ISSN 0004-6361.

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Using the 12-m APEX telescope, we have detected redshifted emission from the 157.74 μm [CII] line in the z = 4.4074 quasar BRI 1335-0417. The linewidth and redshift are in good agreement with previous observations of high-J CO line emission. We measure a [CII] line luminosity, L_([CII]) = (16.4 ± 2.6) × 10^9 L_☉, making BRI 1335-0417 the most luminous, unlensed [CII] line emitter known at high-redshift. The [CII]-to-FIR luminosity ratio of (5.3 ± 0.8) × 10^(-4) is ~3× higher than expected for an average object with a FIR luminosity L_(FIR) = 3.1 × 10^(13) L_☉, if this ratio were to follow the trend observed in other FIR-bright galaxies that have been detected in [CII] line emission. These new data suggest that the scatter in the [CII]-to-FIR luminosity ratio could be larger than previously expected for high luminosity objects. BR1335-0417 has a similar FIR luminosity and [CII]/CO luminosity compared to local ULIRGS and appears to be a gas-rich merger forming stars at a rate of a few thousand solar masses per year.

Item Type:Article
Related URLs:
URLURL TypeDescription
Carilli, C. L.0000-0001-6647-3861
Wilner, D. J.0000-0003-1526-7587
Cox, P.0000-0003-2027-8221
de Breuck, C.0000-0002-6637-3315
Menten, K.0000-0001-6459-0669
Riechers, D. A.0000-0001-9585-1462
Walter, F.0000-0003-4793-7880
Additional Information:© 2010 ESO. Received 19 July 2010; Accepted 6 August 2010; Published online 06 September 2010. Based on data collected with the ESO APEX telescope under program ID 084A-0030. We thank the staff of the APEX telescope for help with the observations and data analysis. In particular we thank Thomas Stanke, Andreas Lundgren, Rodrigo Parra, Francisco Montenegro, Giorgio Siringo, and Claudio Agurto. D.R. acknowledges support from from NASA through Hubble Fellowship grant HST-HF-51235.01 awarded by STScI, operated by AURA for NASA, under contract NAS 5-26555. We thank the referee for useful comments and suggestions on the manuscript.
Funding AgencyGrant Number
NASA Hubble FellowshipHST-HF-51235.01
Space Telescope Science InstituteUNSPECIFIED
Subject Keywords:galaxies: high-redshift; galaxies: ISM
Record Number:CaltechAUTHORS:20101202-094738053
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Official Citation:[CII] line emission in BRI 1335-0417 at z = 4.4 J. Wagg, C. L. Carilli, D. J. Wilner, P. Cox, C. De Breuck, K. Menten, D. A. Riechers and F. Walter A&A 519 L1 (2010) DOI: 10.1051/0004-6361/201015424
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:21114
Deposited By: Jason Perez
Deposited On:02 Dec 2010 22:46
Last Modified:09 Mar 2020 13:19

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