NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-20 T02:40:30 PDT
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For refcode 2018ApJ...861...94H:
Retrieve 52 NED objects in this reference.
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Copyright by American Astronomical Society. Reproduced by permission
2018ApJ...861...94H SHINING, A Survey of Far-infrared Lines in Nearby Galaxies. I. Survey Description, Observational Trends, and Line Diagnostics Herrera-Camus, R.; Sturm, E.; Gracia-Carpio, J.; Lutz, D.; Contursi, A.; Veilleux, S.; Fischer, J.; Gonzalez-Alfonso, E.; Poglitsch, A.; Tacconi, L.; Genzel, R.; Maiolino, R.; Sternberg, A.; Davies, R.; Verma, A. Abstract. We use the Herschel/PACS spectrometer to study the global and spatially resolved far-infrared (FIR) fine-structure line emission in a sample of 52 galaxies that constitute the SHINING survey. These galaxies include star-forming, active-galactic nuclei (AGNs), and luminous infrared galaxies (LIRGs). We find an increasing number of galaxies (and kiloparsec-size regions within galaxies) with low line-to-FIR continuum ratios as a function of increasing FIR luminosity (L_FIR_), dust infrared color, L_FIR_ to molecular gas mass ratio (L_FIR_/M_mol_), and FIR surface brightness (Sigma_FIR_). The correlations between the [C II]/FIR or [O I]/FIR ratios with Sigma_FIR_ are remarkably tight (~0.3 dex scatter over almost four orders of magnitude in Sigma_FIR_). We observe that galaxies with {L}_FIR_}/{M}_mol_}>~ 80 {L}_o_ {M}_o_^-1^ and Sigma_FIR_ >~ 10^11^ L_sun_ kpc^-2^ tend to have weak fine-structure line-to-FIR continuum ratios, and that LIRGs with infrared sizes >~1 kpc have line-to-FIR ratios comparable to those observed in typical star-forming galaxies. We analyze the physical mechanisms driving these trends in Paper II. The combined analysis of the [C II], [N II] 122 micron, and [O III] 88 micron lines reveals that the fraction of the [C II] line emission that arises from neutral gas increases from 60% to 90% in the most active star-forming regions and that the emission originating in the ionized gas is associated with low-ionization, diffuse gas rather than with dense gas in H II regions. Finally, we report the global and spatially resolved line fluxes of the SHINING galaxies to enable the comparison and planning of future local and high-z studies. Key words: galaxies: active, galaxies: general, galaxies: ISM, galaxies: Seyfert, galaxies: star formation, galaxies: starburst
Retrieve 52 NED objects in this reference.
Please click here for ADS abstract

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