Astrochemistry and star formation in nearby galaxies: from galaxy disks to hot nuclei

Aalto, S.

doi:10.1051/eas/1575013

“…It is important to be aware, however, that to safely apply chemistry as a diagnostic tool usually requires a combination of lines to address the dichotomy between PDR, XDRs, CRDRs and the chemistry of shocks and mechanical heating (e.g. Kazandjian et al 2012;Aalto 2015;Viti et al 2014;Viti 2016;Harada et al 2018).…”

Section: Importance Of Shocks X-rays and Cosmic Raysmentioning

confidence: 99%

“…The vast majority of studies cannot really constrain α CO ; hence, a fixed α CO is generally assumed. In Aalto (2015), the impact of self-gravitating versus non-self gravitating dense gas on the mass estimate is discussed.…”

Section: Molecular Gas Componentmentioning

confidence: 99%

Cool outflows in galaxies and their implications

Veilleux

¹

,

Maiolino

²

,

Bolatto

³

et al. 2020

Astron Astrophys Rev

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Neutral-atomic and molecular outflows are a common occurrence in galaxies, near and far. They operate over the full extent of their galaxy hosts, from the innermost regions of galactic nuclei to the outermost reaches of galaxy halos. They carry a substantial amount of material that would otherwise have been used to form new stars. These cool outflows may have a profound impact on the evolution of their host galaxies and environments. This article provides an overview of the basic physics of cool outflows, a comprehensive assessment of the observational techniques and diagnostic tools used to characterize them, a detailed description of the best-studied cases, and a more general discussion of the statistical properties of these outflows in the local and distant universe. The remaining outstanding issues that have not yet been resolved are summarized at the end of the review to inspire new research directions.

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“…It is important to be aware, however, that to safely apply chemistry as a diagnostic tool usually requires a combination of lines to address the dichotomy between PDR, XDRs, CRDRs -and the chemistry of shocks and mechanical heating (e.g. Kazandjian et al 2012;Aalto 2015;Viti et al 2014;Viti 2016;Harada et al 2018).…”

Section: Importance Of Shocks X-rays and Cosmic Raysmentioning

confidence: 99%

“…In Aalto (2015), the impact of self-gravitating versus non-self gravitating dense gas on the mass estimate is discussed.…”

Section: Molecular Gas Componentmentioning

confidence: 99%

Cool Outflows in Galaxies and their Implications

Veilleux,

Maiolino,

Bolatto

et al. 2020

Preprint

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Neutral-atomic and molecular outflows are a common occurrence in galaxies, near and far. They operate over the full extent of their galaxy hosts, from the innermost regions of galactic nuclei to the outermost reaches of galaxy halos. They carry a substantial amount of material that would otherwise have been used to form new stars. These cool outflows may have a profound impact on the evolution of their host galaxies and environments. This article provides an overview of the basic physics of cool outflows, a comprehensive assessment of the observational techniques and diagnostic tools used to characterize them, a detailed description of the best-studied cases, and a more general discussion of the statistical properties of these outflows in the local and distant universe. The remaining outstanding issues that have not yet been resolved are summarized at the end of the review to inspire new research directions.

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“…There are a number of standard scenarios often referred to when discussing extragalactic astrochemistry (e.g., Aalto 2013Aalto , 2015:…”

Section: High-density Tracers and Astrochemistrymentioning

confidence: 99%

Star formation and nuclear activity in luminous infrared galaxies: An infrared through radio review

Perez-Torres,

Mattila,

Alonso-Herrero

et al. 2020

Preprint

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Nearby galaxies offer unique laboratories allowing multi-wavelength spatially resolved studies of the interstellar medium, star formation and nuclear activity across a broad range of physical conditions. In particular, detailed studies of individual local luminous infrared galaxies (LIRGs) are crucial for gaining a better understanding of these processes and for developing and testing models that are used to explain statistical studies of large populations of such galaxies at high redshift for which it is currently impossible to reach a sufficient physical resolution. Here, we provide an overview of the impact of spatially resolved infrared, sub-millimetre and radio observations in the study of the interstellar medium, star formation and active galactic nuclei as well as their interplay in local LIRGs. We also present an overview of the modelling of their spectral energy distributions using state-of-the-art radiative transfer codes. These contribute necessary and powerful 'workhorse' tools for the study of LIRGs (and their more luminous counterparts) at higher redshifts which are unresolved in observations. We describe how spatially-resolved time domain observations have recently opened a new window to study the nuclear activity in LIRGs. We describe in detail the observational characteristics of Arp 299 which is one of the best studied local LIRGs and exemplifies the power of the combination of high-resolution observations at infrared to radio wavelengths together with radiative transfer modelling used to explain the spectral energy distributions of its different components. We summarise the previous achievements obtained using high-spatial

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Astrochemistry and star formation in nearby galaxies: from galaxy disks to hot nuclei

Cited by 4 publications

References 73 publications

Cool outflows in galaxies and their implications

Cool outflows in galaxies and their implications

Cool Outflows in Galaxies and their Implications

Star formation and nuclear activity in luminous infrared galaxies: An infrared through radio review

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