The nature of [S III]lambda lambda 9096, 9532 emitters at z=1.34 and 1.23

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	The nature of [S III]lambda lambda 9096, 9532 emitters at z=1.34 and 1.23
	An FangXia1,2 ; Zheng XianZhong2 ; Meng YanZhi 2; Chen Yang 3; Wen ZhangZheng 2; Lu GuoLiang 1
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2013-11-01
卷号	56 期号:11 页码:2226-2235
关键词	galaxies: evolution galaxies: high-redshift galaxies: emission lines [S III]
通讯作者	Appleton, PN (通讯作者) CALTECH, NASA, Herschel Sci Ctr, Pasadena, CA 91125 USA.
英文摘要	A study of [S iii]lambda lambda 9096, 9532 emitters at z = 1.34 and 1.23 is presented using our deep narrow-band H (2) S 1 (centered at 2.13 mu m) 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]) =similar to 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 (aS (TM))) < 9.9.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	STAR-FORMING GALAXIES ; DEEP FIELD-SOUTH ; EXTRAGALACTIC LEGACY SURVEY ; NEAR-INFRARED SPECTROSCOPY ; ALPHA LUMINOSITY FUNCTION ; HIGH-REDSHIFT GALAXIES ; YALE-CHILE MUSYC ; FORMATION HISTORY ; HII GALAXIES ; MULTIWAVELENGTH SURVEY
收录类别	SCI
语种	英语
WOS记录号	WOS:000326643100032
公开日期	2014-01-08
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/9787]
专题	紫金山天文台_暗物质和空间天文实验室
作者单位	1.Xinjiang Univ, Sch Phys & Technol, Urumqi 830046, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 3.Univ Sci & Technol China, Ctr Astrophys, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	An FangXia,Zheng XianZhong,Meng YanZhi,et al. The nature of [S III]lambda lambda 9096, 9532 emitters at z=1.34 and 1.23[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2013,56(11):2226-2235.
APA	An FangXia,Zheng XianZhong,Meng YanZhi,Chen Yang,Wen ZhangZheng,&Lu GuoLiang.(2013).The nature of [S III]lambda lambda 9096, 9532 emitters at z=1.34 and 1.23.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,56(11),2226-2235.
MLA	An FangXia,et al."The nature of [S III]lambda lambda 9096, 9532 emitters at z=1.34 and 1.23".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 56.11(2013):2226-2235.