H alpha Emitting Galaxies at z similar to 0.6 in the Deep And Wide Narrow-band Survey
文献类型：期刊论文
| 作者 | Coughlin, Alicia13,14; Rhoads, James E.13,15; Malhotra, Sangeeta13,15; Probst, Ronald1; Swaters, Rob2,3; Tilvi, Vithal S.4,13; Zheng, Zhen-Ya5,13; Finkelstein, Steven6,7; Hibon, Pascale8; Mobasher, Bahram9 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2018-05-10 |
| 卷号 | 858期号:2 |
| ISSN号 | 0004-637X |
| 关键词 | Galaxies: Evolution Galaxies: Formation Galaxies: High-redshift Galaxies: Star Formation |
| DOI | 10.3847/1538-4357/aab620 |
| 英文摘要 | We present new measurements of the Ha luminosity function (LF) and star formation rate (SFR) volume density for galaxies at z similar to 0.62 in the COSMOS field. Our results are part of the Deep And Wide Narrow-band Survey (DAWN), a unique infrared imaging program with large areal coverage (similar to 1.1 deg(2) over five fields) and sensitivity (9.9 x 10(-18) erg cm(-2) s(-1) at 5 sigma). The present sample, based on a single DAWN field, contains 116 H alpha emission-line candidates at z similar to 0.62, 25% of which have spectroscopic confirmations. These candidates have been selected through the comparison of narrow and broad-band images in the infrared and through matching with existing catalogs in the COSMOS field. The dust-corrected LF is well described by a Schechter function with L-* = 10(42.6 +/- 0.92) erg s(-1), Phi(*) = 10(-3.32 +/- 0.93) Mpc(-3), L-*Phi(*) = 10(39.40 +/- 0.15) erg s(-1) Mpc(-3), and alpha = -1.75 +/- 0.09. From this LF, we calculate a SFR density of rho(SFR) = 10(-1.37 +/- 0.08) M-circle dot yr(-1) Mpc(-3). We expect an additional cosmic variance uncertainty of similar to 20%. Both the faint end slope and luminosity density that we derive are consistent with prior results at similar redshifts, with reduced uncertainties. We also present an analysis of these H alpha emitters' sizes, which shows a direct correlation between the galaxies' sizes and their H alpha emission. |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000431946700011 |
| 源URL | [http://119.78.226.72/handle/331011/32289]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Coughlin, Alicia |
| 作者单位 | 1.Natl Opt Astron Observ, 950 N Cherry Ave, Tucson, AZ 85719 USA 2.Univ Maryland, Dept Astron, College Pk, MD 20742 USA 3.Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA 4.Texas A&M Univ, Dept Phys, George P & Cynthia W Mitchell Inst Fundamental Ph, College Stn, TX 77843 USA 5.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, 80 Nandan Rd, Shanghai 200030, Shanghai, Peoples R China 6.Univ Texas Austin, Dept Astron, 1 Univ Stn C1400, Austin, TX 78712 USA 7.Univ Texas Austin, McDonald Observ, 1 Univ Stn C1400, Austin, TX 78712 USA 8.European Southern Observ, Alonso de Cordova 3107,Casilla 19001, Santiago, Chile 9.Univ Calif Riverside, Riverside, CA 92521 USA 10.Univ Maryland, Joint Space Sci Inst, College Pk, MD 20742 USA |
| 推荐引用方式 GB/T 7714 | Coughlin, Alicia,Rhoads, James E.,Malhotra, Sangeeta,et al. H alpha Emitting Galaxies at z similar to 0.6 in the Deep And Wide Narrow-band Survey[J]. ASTROPHYSICAL JOURNAL,2018,858(2). |
| APA | Coughlin, Alicia.,Rhoads, James E..,Malhotra, Sangeeta.,Probst, Ronald.,Swaters, Rob.,...&Zabl, Johannes.(2018).H alpha Emitting Galaxies at z similar to 0.6 in the Deep And Wide Narrow-band Survey.ASTROPHYSICAL JOURNAL,858(2). |
| MLA | Coughlin, Alicia,et al."H alpha Emitting Galaxies at z similar to 0.6 in the Deep And Wide Narrow-band Survey".ASTROPHYSICAL JOURNAL 858.2(2018). |
入库方式： OAI收割
来源：上海天文台
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