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Full-Text Articles in Physical Sciences and Mathematics
Cool And Warm Dust Emission From M33 (Herm33es), E. M. Xilouris, F. S. Tabatabaei, M. Boquien, C. Kramer, C. Buchbender, F. Bertoldi, S. Anderl, J. Braine, S. Verley, M. Relaño, G. Quintana-Lacaci, S. Akras, R. Beck, Daniela Calzetti, F. Combes, M. Gonzalez, P. Gratier, C. Henkel, F. Israel, B. Koribalski, S. Lord, B. Mookerjea, E. Rosolowsky, G. Stacey, R. P. J. Tilanus, F. Van Der Tak, P. Van Der Werf
Cool And Warm Dust Emission From M33 (Herm33es), E. M. Xilouris, F. S. Tabatabaei, M. Boquien, C. Kramer, C. Buchbender, F. Bertoldi, S. Anderl, J. Braine, S. Verley, M. Relaño, G. Quintana-Lacaci, S. Akras, R. Beck, Daniela Calzetti, F. Combes, M. Gonzalez, P. Gratier, C. Henkel, F. Israel, B. Koribalski, S. Lord, B. Mookerjea, E. Rosolowsky, G. Stacey, R. P. J. Tilanus, F. Van Der Tak, P. Van Der Werf
Daniela Calzetti
We study the far-infrared emission from the nearby spiral galaxy M33 in order to investigate the dust physical properties such as the temperature and the luminosity density across the galaxy. Taking advantage of the unique wavelength coverage (100, 160, 250, 350 and 500 micron) of the Herschel Space Observatory and complementing our dataset with Spitzer-IRAC 5.8 and 8 micron and Spitzer-MIPS 24 and 70 micron data, we construct temperature and luminosity density maps by fitting two modified blackbodies of a fixed emissivity index of 1.5. We find that the 'cool' dust grains are heated at temperatures between 11 and 28 …
Dust And Gas Power-Spectrum In M33 (Herm33es), F. Combes, M. Boquien, C. Kramer, E. M. Xilouris, F. Bertoldi, J. Braine, C. Buchbender, Daniela Calzetti, P. Gratier, F. Israel, B. Koribalski, S. Lord, G. Quintana-Lacaci, M. Relaño, M. Röllig, G. Stacey, F. S. Tabatabaei, R. P. J. Tilanus, F. Van Der Tak, P. Van Der Werf, S. Verley
Dust And Gas Power-Spectrum In M33 (Herm33es), F. Combes, M. Boquien, C. Kramer, E. M. Xilouris, F. Bertoldi, J. Braine, C. Buchbender, Daniela Calzetti, P. Gratier, F. Israel, B. Koribalski, S. Lord, G. Quintana-Lacaci, M. Relaño, M. Röllig, G. Stacey, F. S. Tabatabaei, R. P. J. Tilanus, F. Van Der Tak, P. Van Der Werf, S. Verley
Daniela Calzetti
Power spectra of de-projected images of late-type galaxies in gas and/or dust emission are very useful diagnostics of the dynamics and stability of their interstellar medium. Previous studies have shown that the power spectra can be approximated as two power-laws, a shallow one at large scales (larger than 500 pc) and a steeper one at small scales, with the break between the two corresponding to the line-of-sight thickness of the galaxy disk. We present a thorough analysis of the power spectra of the dust and gas emission at several wavelengths in the nearby galaxy M33. In particular, we use the …