The Star Formation Efficiency in Nearby Galaxies: Measuring Where Gas Forms Stars Effectively
Citations
2,525 citations
Cites background from "The Star Formation Efficiency in Ne..."
...Recent analyses have become available (Kennicutt et al. 2007; Bigiel et al. 2008, 2010, 2011; Leroy et al. 2008; Blanc et al. 2009; Eales et al. 2010; Verley et al. 2010; Liu et al. 2011; Rahman et al. 2011, 2012; Schruba et al. 2011), and several other major studies are ongoing....
[...]
...…instabilities in the disk (e.g., Q instabilities), rather than with atomic or molecular phase transitions (e.g., Kennicutt 1989;Martin & Kennicutt 2001), but recent observations and theoretical analyses have raised questions about this interpretation (e.g., Schaye 2004; Leroy et al. 2008)....
[...]
...…of the star formation law derived in this way have been carried out by numerous authors (e.g., Kennicutt 1989; Martin & Kennicutt 2001; Wong & Blitz 2002; Boissier et al. 2003; Heyer et al. 2004; Komugi et al. 2005; Schuster et al. 2007; Leroy et al. 2008; Schruba et al. 2011; Gratier et al. 2010)....
[...]
...A review of many of the theoretical ideas can be found in McKee & Ostriker (2007), and an informative summary of the main models in the literature up to 2008 can be found in Leroy et al. (2008)....
[...]
...…speaking this scaling relation only applies to the phase balance of cold gas rather than the SFR, but it can be recast into a predicted star formation law if assumptions are made about the scaling between the SFR and the molecular gas components (e.g., Blitz & Rosolowsky 2006; Leroy et al. 2008)....
[...]
2,004 citations
1,354 citations
1,041 citations
Cites background from "The Star Formation Efficiency in Ne..."
...The molecular gas phase is thought to immediately preceed star formation (e.g. Leroy et al. 2008, Schruba et al. 2011) and this phase is thus most relevant to study a galaxy’s potential to form new stars....
[...]
997 citations
Cites background or result from "The Star Formation Efficiency in Ne..."
...…recent results of Daddi et al. 2009ab and Frayer et al. 2008), quasars (QSOs; Riechers et al. 2006 Solomon & van den Bout 2005), local ULIRGs (Solomon et al. 1997) and local spirals taken from the HERACLES survey (Leroy et al. 2008; 2009) and from the Virgo Cluster survey of Wilson et al. (2009)....
[...]
...However, we expect the vast majority of the hydrogen to be molecular given that the high observed densities and expected pressures in the interstellar medium of these galaxies (see, e.g., Blitz & Rosolowsky 2006; Leroy et al. 2008; Obreschkow & Rawlings 2009)....
[...]
...This is in agreement with what is found for our sources (see Section 2) as well as local disks (Leroy et al. 2008)....
[...]
...For comparison, the total gas fractions (including HI, H2 and helium) in local spiral galaxies with the same mass is about 20% (Leroy et al. 2008), and about 7% if including only H2 and helium (i.e., restricting to the stellar disk)....
[...]
References
15,988 citations
14,295 citations
11,704 citations
8,607 citations
8,218 citations