- document
-
Smith, J. D T (author), Croxall, Kevin (author), Draine, Bruce (author), Looze, Ilse De (author), Sandstrom, Karin (author), Armus, Lee (author), Beirão, Pedro (author), Bolatto, Alberto (author), Boquien, Mederic (author), Brandl, B.R. (author), Crocker, Alison (author), Dale, Daniel A. (author), Galametz, Maud (author), Groves, Brent (author), Helou, George (author), Herrera-Camus, Rodrigo (author), Hunt, Leslie (author), Kennicutt, Robert (author), Walter, Fabian (author), Wolfire, Mark (author)We present [C ii] 158 μm measurements from over 15,000 resolved regions within 54 nearby galaxies of the Kingfish program to investigate the so-called [C ii] "line-cooling deficit" long known to occur in galaxies with different luminosities. The [C ii]/TIR ratio ranges from above 1% to below 0.1% in the sample, with a mean value of 0.48 ± 0...journal article 2017
- document
-
Herrera-Camus, Rodrigo (author), Bolatto, Alberto (author), Smith, J. D T (author), Draine, Bruce (author), Pellegrini, E. (author), Wolfire, Mark (author), Croxall, Kevin (author), Looze, Ilse De (author), Calzetti, D. (author), Kennicutt, Robert (author), Crocker, A. (author), Armus, Lee (author), Van Der Werf, P. (author), Sandstrom, Karin (author), Galametz, Maud (author), Brandl, B.R. (author), Groves, Brent (author), Rigopoulou, D. (author), Walter, Fabian (author), Leroy, A. (author), Boquien, Mederic (author), Tabatabaei, F. S. (author), Beirão, Pedro (author)The [NII] 122 and 205 um transitions are powerful tracers of the ionized gas in the ISM: (1) the [NII] 122/205 line ratio can be used to measure the electron density of the low-excitation, ionized gas, and (2) the intensity of these lines is directly related to the flux of ionizing photons, probing the most recent star formation activity. The...journal article 2016
- document
-
Abdullah, A. (author), Brandl, B.R. (author), Groves, Brent (author), Wolfire, Mark (author), Calzetti, D. (author), Croxall, Kevin (author), Looze, Ilse De (author), Kennicutt, R. C. (author), Sandstrom, K. M. (author), Armus, Lee (author), Dale, Daniel A. (author), Galametz, Maud (author), Herrera-Camus, Rodrigo (author), Hunt, L. K. (author), Smith, J. D T (author), Tielens, A. G.G.M. (author)With its relatively low ionization potential, C<sup>+</sup> can be found throughout the interstellar medium (ISM) and provides one of the main cooling channels of the ISM via the [C ii] 157 μm emission. While the strength of the [C ii] line correlates with the star formation rate, the contributions of the various gas phases to the [C ii]...journal article 2017
- document
-
Croxall, K. V. (author), Smith, J. D T (author), Pellegrini, E. (author), Groves, Brent (author), Bolatto, Alberto (author), Herrera-Camus, Rodrigo (author), Sandstrom, K. M. (author), Draine, Bruce (author), Wolfire, M. G. (author), Armus, Lee (author), Boquien, Mederic (author), Brandl, B.R. (author), Dale, Daniel A. (author), Galametz, Maud (author), Hunt, L. K. (author), Kennicutt, R. C. (author), Kreckel, K. (author), Rigopoulou, D. (author), van der werf, p (author), Wilson, C (author)The [C ii] 158 μm fine-structure line is the brightest emission line observed in local star-forming galaxies. As a major coolant of the gas-phase interstellar medium, [C ii] balances the heating, including that due to far-ultraviolet photons, which heat the gas via the photoelectric effect. However, the origin of [C ii] emission remains...journal article 2017