A Herschel Space Observatory Spectral Line Survey of Local Luminous Infrared Galaxies from 194 to 671 Microns

	A Herschel Space Observatory Spectral Line Survey of Local Luminous Infrared Galaxies from 194 to 671 Microns
	Lu, Nanyao 1,2,3; Zhao, Yinghe 3,4,5,6; Diaz-Santos, Tanio 7; Kevin Xu, C.1,2,3; Gao, Yu6 ; Armus, Lee 8; Isaak, Kate G.9; Mazzarella, Joseph M.3; van der Werf, Paul P.10; Appleton, Philip N.3
刊名	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2017-05-01
卷号	230 期号:1
关键词	galaxies: active galaxies: ISM galaxies: star formation infrared: galaxies ISM: molecules submillimeter: galaxies
英文摘要	We describe a Herschel Space Observatory 194-671 mu m spectroscopic survey of a sample of 121 local luminous infrared galaxies and report the fluxes of the CO J to J-1 rotational transitions for 4 <= J <= 13, the [N II] 205 mu m line, the [C I] lines at 609 and 370 mu m, as well as additional and usually fainter lines. The CO spectral line energy distributions (SLEDs) presented here are consistent with our earlier work, which was based on a smaller sample, that calls for two distinct molecular gas components in general: (i) a cold component, which emits CO lines primarily at J less than or similar to 4 and likely represents the same gas phase traced by CO (1-0), and (ii) a warm component, which dominates over the mid-J regime (4 < J less than or similar to 10) and is intimately related to current star formation. We present evidence that the CO line emission associated with an active galactic nucleus is significant only at J > 10. The flux ratios of the two [C I] lines imply modest excitation temperatures of 15-30 K; the [C I] 370 mu m line scales more linearly in flux with CO (4-3) than with CO (7-6). These findings suggest that the [C I] emission is predominantly associated with the gas component defined in (i) above. Our analysis of the stacked spectra in different far-infrared (FIR) color bins reveals an evolution of the SLED of the rotational transitions of H2O vapor as a function of the FIR color in a direction consistent with infrared photon pumping.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	FOURIER-TRANSFORM SPECTROMETER ; ACTIVE GALACTIC NUCLEUS ; SKY LIRG SURVEY ; EXTREME STAR-FORMATION ; HIGH-REDSHIFT GALAXIES ; WARM MOLECULAR GAS ; HIGH-J CO ; ATOMIC CARBON ; NGC 6240 ; GOALS SAMPLE
收录类别	SCI
语种	英语
WOS记录号	WOS:000400578000001
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/8842]
专题	国家天文台_太阳物理研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.CAS, South Amer Ctr Astron, Camino El Observ 1515, Santiago, Chile 3.CALTECH, Infrared Proc & Anal Ctr, MS 100-22, Pasadena, CA 91125 USA 4.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China 5.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Peoples R China 6.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 7.Univ Diego Portales, Fac Ingn, Nucleo Astron, Av Ejercito Libertador 441, Santiago, Chile 8.CALTECH, Spitzer Sci Ctr, MS 220-6, Pasadena, CA 91125 USA 9.ESA ESTEC SCI S, European Space Res & Technol Ctr, Sci Support Off, Keplerlaan 1, NL-2201 AZ Noordwijk, Netherlands 10.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands
推荐引用方式 GB/T 7714	Lu, Nanyao,Zhao, Yinghe,Diaz-Santos, Tanio,et al. A Herschel Space Observatory Spectral Line Survey of Local Luminous Infrared Galaxies from 194 to 671 Microns[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2017,230(1).
APA	Lu, Nanyao.,Zhao, Yinghe.,Diaz-Santos, Tanio.,Kevin Xu, C..,Gao, Yu.,...&Surace, Jason A..(2017).A Herschel Space Observatory Spectral Line Survey of Local Luminous Infrared Galaxies from 194 to 671 Microns.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,230(1).
MLA	Lu, Nanyao,et al."A Herschel Space Observatory Spectral Line Survey of Local Luminous Infrared Galaxies from 194 to 671 Microns".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 230.1(2017).