Wang, Wei-Hao ; Kanekar, Nissim ; Prochaska, J. Xavier (2015) A search for Hα emission in high-metallicity damped Lyman α systems at z ∼ 2.4 Monthly Notices of the Royal Astronomical Society, 448 (3). pp. 2832-2839. ISSN 0035-8711
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Official URL: http://doi.org/10.1093/mnras/stv171
Related URL: http://dx.doi.org/10.1093/mnras/stv171
Abstract
We report on a sensitive search for redshifted Hα line-emission from three high-metallicity damped Lyα absorbers (DLAs) at z ≈ 2.4 with the Near-infrared Integral Field Spectrometer (NIFS) on the Gemini-North telescope, assisted by the ALTtitude conjugate Adaptive optics for the InfraRed (ALTAIR) system with a laser guide star. Within the NIFS field-of-view, ≈3.22 arcsec × 2.92 arcsec corresponding to ≈25 kpc × 23 kpc at z = 2.4, we detect no statistically significant line-emission at the expected redshifted Hα wavelengths. The measured root-mean-square noise fluctuations in 0.4 arcsec apertures are 1–3 × 10-18 erg s-1 cm-2.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Oxford University Press. |
| Keywords: | Galaxies: High Redshift; Quasars: Absorption Lines; Quasars: Individual: Q0201+365; Quasars: Individual: Q0311+430; Quasars: Individual: Q2343+125. |
| ID Code: | 118081 |
| Deposited On: | 13 May 2021 10:12 |
| Last Modified: | 13 May 2021 10:12 |
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