THE HERSCHEL COMPREHENSIVE (U)LIRG EMISSION SURVEY (HERCULES): CO LADDERS, FINE STRUCTURE LINES, AND NEUTRAL GAS COOLING
文献类型：期刊论文
| 作者 | Rosenberg, M. J. F.1; van der Werf, P. P.1; Aalto, S.2; Armus, L.3; Charmandaris, V.4,5,6; Diaz-Santos, T.3; Evans, A. S.7,8; Fischer, J.9; Gao, Y.10 ; Gonzalez-Alfonso, E.11
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2015-03-10 |
| 卷号 | 801期号:2页码:72 |
| 关键词 | galaxies: individual (ULIRGs) galaxies: ISM molecular data photon-dominated region (PDR) submillimeter: ISM |
| 英文摘要 | (Ultra) luminous infrared galaxies ((U)LIRGs) are objects characterized by their extreme infrared (8-1000 mu m) luminosities (L-LIRG > 10(11) L-circle dot and L-ULIRG > 10(12) L-circle dot). The Herschel Comprehensive ULIRG Emission Survey (PI: van derWerf) presents a representative flux-limited sample of 29 (U)LIRGs that spans the full luminosity range of these objects (10(11)L(circle dot) <= L-IR <= 10(13)L(circle dot)). With the Herschel Space Observatory, we observe [CII] 157 mu m, [O I] 63 mu m, and [O I] 145 mu m line emission with Photodetector Array Camera and Spectrometer, CO J = 4-3 through J = 13-12, [C I] 370 mu m, and [C I] 609 mu m with SPIRE, and low-J CO transitions with ground-based telescopes. The CO ladders of the sample are separated into three classes based on their excitation level. In 13 of the galaxies, the [O I] 63 mu m emission line is self absorbed. Comparing the CO excitation to the InfraRed Astronomical Satellite 60/100 mu m ratio and to far infrared luminosity, we find that the CO excitation is more correlated to the far infrared colors. We present cooling budgets for the galaxies and find fine-structure line flux deficits in the [C II], [Si II], [O I], and [C I] lines in the objects with the highest far IR fluxes, but do not observe this for CO 4 <= J(upp) <= 13. In order to study the heating of the molecular gas, we present a combination of three diagnostic quantities to help determine the dominant heating source. Using the CO excitation, the CO J = 1-0 linewidth, and the active galactic nucleus (AGN) contribution, we conclude that galaxies with large CO linewidths always have high-excitation CO ladders, and often low AGN contributions, suggesting that mechanical heating is important. |
| 学科主题 | 天文和天体物理 |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ULTRALUMINOUS INFRARED GALAXIES ; FOURIER-TRANSFORM SPECTROMETER ; SPACE-OBSERVATORY MEASUREMENTS ; ACTIVE GALACTIC NUCLEI ; DENSE MOLECULAR GAS ; STAR-FORMATION ; ARP 220 ; PHYSICAL CONDITIONS ; MARKARIAN 231 ; WATER-VAPOR |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000350965500001 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/14850]  |
| 专题 | 紫金山天文台_星系中的恒星形成研究团组 |
| 作者单位 | 1.Leiden Univ, Leiden Observ, NL-2300 RA Leiden, Netherlands 2.Chalmers, Dept Earth & Space Sci, Onsala Observ, SE-43994 Onsala, Sweden 3.CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA 4.Natl Observ Athens, Inst Astron Astrophys Space Applicat & Remote Sen, Athens 15236, Greece 5.Univ Crete, Dept Phys, Iraklion 71003, Greece 6.Observ Paris, LERMA, F-75014 Paris, France 7.Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA 8.Natl Radio Astron Observ, Charlottesville, VA 22903 USA 9.Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA 10.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Rosenberg, M. J. F.,van der Werf, P. P.,Aalto, S.,et al. THE HERSCHEL COMPREHENSIVE (U)LIRG EMISSION SURVEY (HERCULES): CO LADDERS, FINE STRUCTURE LINES, AND NEUTRAL GAS COOLING[J]. ASTROPHYSICAL JOURNAL,2015,801(2):72. |
| APA | Rosenberg, M. J. F..,van der Werf, P. P..,Aalto, S..,Armus, L..,Charmandaris, V..,...&Xilouris, E. M..(2015).THE HERSCHEL COMPREHENSIVE (U)LIRG EMISSION SURVEY (HERCULES): CO LADDERS, FINE STRUCTURE LINES, AND NEUTRAL GAS COOLING.ASTROPHYSICAL JOURNAL,801(2),72. |
| MLA | Rosenberg, M. J. F.,et al."THE HERSCHEL COMPREHENSIVE (U)LIRG EMISSION SURVEY (HERCULES): CO LADDERS, FINE STRUCTURE LINES, AND NEUTRAL GAS COOLING".ASTROPHYSICAL JOURNAL 801.2(2015):72. |
入库方式： OAI收割
来源：紫金山天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。