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| Content Provider | Springer Nature Link |
|---|---|
| Author | An, FangXia Zheng, XianZhong Meng, YanZhi Chen, Yang Wen, ZhangZheng Lü, GuoLiang |
| Copyright Year | 2013 |
| Abstract | A study of [S iii]λλ9096, 9532 emitters at z = 1.34 and 1.23 is presented using our deep narrow-band H $_{2}$ S 1 (centered at 2.13 μm) imaging survey of the Extended Chandra Deep Field South (ECDFS). We combine our data with multi-wavelength data of ECDFS to build up spectral energy distributions (SEDs) from the U to the K $_{s}$-band for emitter candidates selected with strong excess in H $_{2}$ S 1 − K $_{s}$ and derive photometric redshifts, line luminosities, stellar masses and extinction. A sample of 14 [S iii] emitters are identified with H $_{2}$ S 1 < 22.8 and K $_{s}$ < 24.8 (AB) over 381 arcmin$^{2}$ area, having [S iii] line luminosity L $_{[SIII]}$ =∼ 1041.5–42.6 erg s$^{−1}$. None of the [S iii] emitters is found to have X-ray counterpart in the deepest Chandra 4Ms observation, suggesting that they are unlikely powered by AGNs. The HST/ACS F606W and HST/WFC3 F160W images show their rest-frame UV and optical morphologies. About half of the [S iii] emitters are mergers and at least one third are disk-type galaxies. Nearly all [S iii] emitters exhibit a prominent Balmer break in their SEDs, indicating the presence of a significant post-starburst component. Taken together, our results imply that both shock heating in post-starburst and photoionization caused by young massive stars are likely to excite strong [S iii] emission lines. We conclude that the [S iii] emitters in our sample are dominated by star-forming galaxies (SFGs) with stellar mass 8.7 < log(M/M $_{⊙}$) < 9.9. |
| Starting Page | 2226 |
| Ending Page | 2235 |
| Page Count | 10 |
| File Format | |
| ISSN | 16747348 |
| Journal | Science in China Series G |
| Volume Number | 56 |
| Issue Number | 11 |
| e-ISSN | 18691927 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2013-10-10 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | galaxies: evolution galaxies: high-redshift galaxies: emission lines [S iii] Physics Classical Continuum Physics Astronomy, Observations and Techniques |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
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