Dannerbauer, H., Harrington, K., Diaz-Sanchez, A., Iglesias-Groth, S., Rebolo, R., Genova-Santos, R. T. and Krips, M. (2019). Ultra-bright CO and [C I] Emission in a Lensed z=2.04 Submillimeter Galaxy with Extreme Molecular Gas Properties. Astron. J., 158 (1). BRISTOL: IOP PUBLISHING LTD. ISSN 1538-3881
Full text not available from this repository.Abstract
We report the very bright detection of cold molecular gas with the IRAM NOEMA interferometer of the strongly lensed source WISE J132934.18+224327.3 at z = 2.04, the so-called Cosmic Eyebrow. This source has a similar spectral energy distribution from optical-mid/IR to submillimeter/radio but significantly higher fluxes than the well-known lensed SMG SMMJ 2135, the Cosmic Eyelash at z = 2.3. The interferometric observations unambiguously identify the location of the molecular line emission in two components, component CO32-A with ICO(3-2) = 52.2 +/- 0.9 Jy km s(-1) and component CO32-B with ICO(3-2) = 15.7 +/- 0.7 Jy km s(-1). Thus, our NOEMA observations of the CO(3-2) transition confirm the SMG-nature of WISE J132934.18+224327.3, resulting in the brightest CO(3-2) detection ever of an SMG. In addition, we present follow-up observations of the brighter component with the Green Bank Telescope (CO(1-0) transition) and IRAM 30 m telescope (CO(4-3) and [C I](1-0) transitions). The star formation efficiency of similar to 100 L-circle dot/(K km s(-1) pc(2))is at the overlap region between merger-triggered and disk-like star formation activity and the lowest seen for lensed dusty star-forming galaxies. The determined gas depletion time similar to 60 Myr, intrinsic infrared star formation SFRIR approximate to 2000 M-circle dot yr(-1), and gas fraction M-mol/M-* = 0.44 indicate a starburst/merger-triggered star formation. The obtained data of the cold ISM-from CO(1-0) and dust continuum-indicates a gas mass mu M-mol similar to 15 x 10(11) M-circle dot for component CO32-A. Its unseen brightness offers us the opportunity to establish the Cosmic Eyebrow as a new reference source at z = 2 for galaxy evolution.
| Item Type: | Journal Article | ||||||||||||||||||||||||||||||||
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| URN: | urn:nbn:de:hbz:38-136636 | ||||||||||||||||||||||||||||||||
| DOI: | 10.3847/1538-3881/aaf50b | ||||||||||||||||||||||||||||||||
| Journal or Publication Title: | Astron. J. | ||||||||||||||||||||||||||||||||
| Volume: | 158 | ||||||||||||||||||||||||||||||||
| Number: | 1 | ||||||||||||||||||||||||||||||||
| Date: | 2019 | ||||||||||||||||||||||||||||||||
| Publisher: | IOP PUBLISHING LTD | ||||||||||||||||||||||||||||||||
| Place of Publication: | BRISTOL | ||||||||||||||||||||||||||||||||
| ISSN: | 1538-3881 | ||||||||||||||||||||||||||||||||
| Language: | English | ||||||||||||||||||||||||||||||||
| Faculty: | Unspecified | ||||||||||||||||||||||||||||||||
| Divisions: | Unspecified | ||||||||||||||||||||||||||||||||
| Subjects: | no entry | ||||||||||||||||||||||||||||||||
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| Refereed: | Yes | ||||||||||||||||||||||||||||||||
| URI: | http://kups.ub.uni-koeln.de/id/eprint/13663 |
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