By Alessandro Boselli
Chapter 1 advent (pages 1–13):
Chapter 2 X?Ray (pages 17–23):
Chapter three UV?Optical?NIR (pages 25–40):
Chapter four The Infrared (pages 41–49):
Chapter five Millimeter and Centimeter Radio (pages 51–57):
Chapter 6 houses of the new X?Ray Emitting fuel (pages 61–62):
Chapter 7 dirt homes (pages 63–69):
Chapter eight Radio houses (pages 71–75):
Chapter nine The Spectral strength Distribution (pages 77–90):
Chapter 10 Spectral positive factors (pages 91–106):
Chapter eleven gasoline houses (pages 107–123):
Chapter 12 airborne dirt and dust Extinction (pages 125–142):
Chapter thirteen superstar Formation Tracers (pages 143–159):
Chapter 14 mild Profiles and Structural Parameters (pages 161–170):
Chapter 15 Stellar and Dynamical lots (pages 171–191):
Chapter sixteen Statistical instruments (pages 195–213):
Chapter 17 Scaling family (pages 215–233):
Chapter 18 topic Cycle in Galaxies (pages 235–243):
Chapter 19 The function of our surroundings on Galaxy Evolution (pages 245–254):
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Additional info for A Panchromatic View of Galaxies
Alternative techniques for determining the density and temperature of the gas within HII regions using UV, infrared, optical, and radio data can be found in . 3 Absorption Lines Stellar spectra are characterized by several absorbtion features whose intensity and shape depends on the physical conditions (temperature, density, velocity, magnetic ﬁeld, and element abundance) of the stellar atmosphere. These parameters change according to the spectral type of the emitting star. For a simple description of the classiﬁcation of stellar spectra the reader should see .
8 The expected variations of the [OII] (solid line) and [SII] (dashed line) intensity ratio as a function of the electron density n e calculated for Te D 10 000 K, from . 9 The expected variations of different line intensity ratios as a function of the electron temperature calculated for an electron density of n e D 1 cm 3 , from . In external galaxies, stars are resolved only within the very local universe. Spectra of galaxies are thus generally used to study their underlying stellar population.
250, 350, 500 μm 53 54 5 Millimeter and Centimeter Radio for SPIRE on Herschel). 8) Here, the Rayleigh–Jeans spectrum is modiﬁed by the grain emissivity with the same ν β factor given in Eq. 7). 2. 2 Emission Lines The radio domain includes several of the most important lines necessary for the study of galaxy evolution. 6 mm is used to determine the molecular hydrogen content. 25 , the higher level CO transition lines such as 12 CO(3 2) fall into the millimeter bands for high-redshift objects, and the 12 CO(1 0) line becomes observable at high frequencies with centimeter radio telescopes such as the VLA.