blind redshift search of SMGs with CO lines の履歴(No.2)

• 履歴一覧
• 差分 を表示
• 現在との差分 を表示
• ソース を表示
• blind redshift search of SMGs with CO lines へ行く。
  • 1 (2011-08-11 (木) 08:52:07)
  • 2 (2011-08-11 (木) 09:27:29)

PdBI†

Daddi et al. 2009, ApJ, 695, L176†

http://adsabs.harvard.edu/abs/2009ApJ...695L.176D

• This is the first time that the redshift of a far-IR bright source that is undetected at optical and near-IR wavelengths has been derived through measurement of CO lines.

EMIR/IRAM30m†

Weiss et al. 2009, ApJ, 705, L45†

http://adsabs.harvard.edu/abs/2009ApJ...705L..45W

• We report the redshift of a distant, highly obscured submillimeter galaxy (SMG), based entirely on the detection of its CO line emission. We have used the newly commissioned Eight MIxer Receiver at the IRAM 30 m telescope, with its 8 GHz of instantaneous dual-polarization bandwidth, to search the 3 mm atmospheric window for CO emission from SMM J14009+0252, a bright SMG detected in SCUBA Lens Survey. A detection of the CO(3-2) line in the 3 mm window was confirmed via observations of CO(5-4) in the 2 mm window. Both lines constrain the redshift of SMM J14009+0252 to z = 2.9344, with high precision (δz = 2 × 10-4). Such observations will become routine in determining redshifts in the era of ALMA.

Lestrade et al. 2010, A&A, 522, L4†

http://adsabs.harvard.edu/abs/2010A%26A...522L...4L

Z-Spec/CSO†

Lupu et al. 2010, ApJ, submitted†

http://adsabs.harvard.edu/abs/2010arXiv1009.5983L

Negrello et al. 2010, Science, 330, 800†

• CO redshift of 4 of 5 H-ATLAS ultra-bright SMGs were determined with Z-Spec on CSO (and confirmed by PdBI observations).

• The redshift of one of the H-ATLAS sources (ID181) was measured by Zpectrometer on GBT (and confirme by PdBI observations).

Scott et al. 2011, ApJ, 733, 29†

http://adsabs.harvard.edu/abs/2011ApJ...733...29S

• We report on the redshift measurement and CO line excitation of HERMES J105751.1+573027 (HLSW-01), a strongly lensed submillimeter galaxy discovered in Herschel/SPIRE observations as part of the Herschel Multi-tiered Extragalactic Survey (HerMES).
• With the 100 GHz instantaneous bandwidth of the Z-Spec instrument on the Caltech Submillimeter Observatory, we robustly identify a redshift of z = 2.958 ± 0.007 for this source, using the simultaneous detection of four CO emission lines (J = 7 → 6, J = 8 → 7, J = 9 → 8, and J = 10 → 9).

Zpectrometer/GBT†

Swinbank et al. 2010, Nature, 464, 733†

http://adsabs.harvard.edu/abs/2010Natur.464..733S

• The mid- and far-infrared colours (S24/ S70=0.4 +/- 0.2) and red optical/near-infrared colours also suggest that the galaxy lies beyond the cluster at z>1.5 (ref. 10 and Supplementary Information), and indeed detection of carbon monoxide (CO) J=1–0 emission at 34.64GHz unambiguously identified the redshift as z=2.3259 +/- 0.0001 (Fig. 2).

Frayer et al. 2011, ApJ, 726, 22†

http://adsabs.harvard.edu/abs/2011ApJ...726L..22F

• The Zpectrometer instrument on the Green Bank Telescope (GBT) was used to measure the redshifts and constrain the masses of the cold molecular gas reservoirs for two candidate high-redshift lensed sources.
• We derive CO(1-0) redshifts of z = 3.042 ± 0.001 and z = 2.625 ± 0.001, and measure molecular gas masses of (1-3) ×1010 M sun, corrected for lens amplification and assuming a conversion factor of α = 0.8 M sun( K km s-1 pc2)-1.