2010A&A...518L..36S


Query : 2010A&A...518L..36S

2010A&A...518L..36S - Astronomy and Astrophysics, volume 518, L36-36 (2010/7-2)

Herschel-PACS spectroscopy of IR-bright galaxies at high redshift.

STURM E., VERMA A., GRACIA-CARPIO J., HAILEY-DUNSHEATH S., CONTURSI A., FISCHER J., GONZALEZ-ALFONSO E., POGLITSCH A., STERNBERG A., GENZEL R., LUTZ D., TACCONI L., CHRISTOPHER N. and DE JONG J.

Abstract (from CDS):

We present Herschel-PACS observations of rest-frame mid-infrared and far-infrared spectral line emissions from two lensed, ultra-luminous infrared galaxies at high redshift: MIPS J142824.0+352619 (MIPS J1428), a starburst-dominated system at z=1.3, and IRAS F10214+4724 (F10214), a source at z=2.3 hosting both star-formation and a luminous AGN. We have detected [OI]63µm and [OIII]52µm in MIPS J1428, and tentatively [OIII]52µm in F10214. Together with the recent ZEUS-CSO [CII]158µm detection in MIPS J1428 we can for the first time combine [OI], [CII] and far-IR (FIR) continuum measurements for PDR modeling of an ultra-luminous (LIR≥1012L) star forming galaxy at the peak epoch of cosmic star formation. We find that MIPS J1428, contrary to average local ULIRGs, does not show a deficit in [OI] relative to FIR. The combination of far-UV flux G0 and gas density n (derived from the PDR models), as well as the star formation efficiency (derived from CO and FIR) is similar to normal or starburst galaxies, despite the high infrared luminosity of this system. In contrast, F10214 has stringent upper limits on [OIV] and [SIII], and an [OIII]/FIR ratio at least an order of magnitude lower than local starbursts or AGN, similar to local ULIRGs.

Abstract Copyright:

Journal keyword(s): ISM: general - galaxies: high-redshift - galaxies: evolution

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 M 77 GiP 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4424 2
2 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5676 6
3 [VV96] J102434.5+470911 Sy1 10 24 34.5 +47 09 11     20.5     ~ 480 0
4 Mrk 231 Sy1 12 56 14.2341182928 +56 52 25.238373852   14.68 13.84     ~ 1930 3
5 NAME HBootes03 G 14 28 24.074 +35 26 19.35           ~ 35 0
6 NAME NOAO Deep Wide Field reg 14 32 05.75 +34 16 47.5           ~ 371 0
7 IC 4553 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 2872 4

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2023.01.27-18:35:47

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