scholarly journals Luminous Infrared Galaxies. III. Multiple Merger, Extended Massive Star Formation, Galactic Wind, and Nuclear Inflow in NGC 3256

2000 ◽  
Vol 120 (2) ◽  
pp. 645-669 ◽  
Author(s):  
S. Lípari ◽  
R. Díaz ◽  
Y. Taniguchi ◽  
R. Terlevich ◽  
H. Dottori ◽  
...  
Keyword(s):  
Star Formation ◽  
Massive Star ◽  
Infrared Galaxies ◽  
Massive Star Formation ◽  
Galactic Wind ◽  
Luminous Infrared Galaxies

Massive star formation in local luminous infrared galaxies

2009 ◽  
Vol 324 (2-4) ◽  
pp. 333-336
Author(s):  
Almudena Alonso-Herrero ◽  
Tanio Díaz-Santos ◽  
Macarena García-Marín ◽  
Luis Colina ◽  
Santiago Arribas ◽  
...  
Keyword(s):  
Star Formation ◽  
Massive Star ◽  
Infrared Galaxies ◽  
Massive Star Formation ◽  
Luminous Infrared Galaxies

scholarly journals A Spitzer Search for the Missing Supernovae in the Galactic Nuclei of ULIRGS

2015 ◽  
Vol 11 (A29B) ◽  
pp. 238-238
Author(s):  
Ori D. Fox ◽  
Chad Casper
Keyword(s):  
Star Formation ◽  
Massive Star ◽  
Near Infrared ◽  
Massive Star Formation ◽  
Star Forming ◽  
Luminous Infrared Galaxies ◽  
Ongoing Work ◽  
Infrared Surveys ◽  
Formation And Evolution ◽  
Nuclear Regions

AbstractSupernova (SN) rates serve as an important probe of star formation models and initial mass functions, particularly at high redshifts due to the SN intrinsic luminosity. Ground-based optical surveys, however, typically discover nearly ten times fewer SNe than predicted, challenging our understanding of massive star formation and evolution. These results are generally attributed to the high dust extinction associated with the nuclei of star forming galaxies, such as Ultra Luminous InfraRed Galaxies (ULIRGs). Near-infrared surveys have been unsuccessful due to extinction values exceeding AV > 25 mag, and even on an 8-m AO system, subtraction algorithms used to find the SNe inevitably leave large residuals associated with the inner 2” of the galactic nucleus, which is where a majority of the SNe occur. A successful survey must be conducted at longer wavelengths and with a space-based telescope, which has stable seeing that reduces the necessity for any subtraction algorithms and, therefore, residuals. Here we present ongoing work from our 300 hour Spitzer 3.6 micron survey for dust-extinguished SNe in the nuclear regions of ULIRGs within 200 Mpc. The direct product of this study will be an improved understanding of the connection between the far-IR luminosity of ULIRGs and massive star formation.

scholarly journals Molecules as tracers of galaxy evolution

2012 ◽  
Vol 8 (S292) ◽  
pp. 199-208 ◽  
Author(s):  
Susanne Aalto
Keyword(s):  
Black Holes ◽  
Star Formation ◽  
High Resolution ◽  
Galaxy Evolution ◽  
Large Scale ◽  
Short Review ◽  
Stimulated Emission ◽  
Molecular Gas ◽  
Infrared Galaxies ◽  
Luminous Infrared Galaxies

AbstractStudying the molecular phase of the interstellar medium in galaxies is fundamental for the understanding of the onset and evolution of star formation and the growth of supermassive black holes. We can use molecules as observational tools exploiting them as tracers of chemical, physical and dynamical conditions. In this short review, key molecules (e.g. HCN, HCO+, HNC, HC3N, CN, H3O+) in identifying the nature of buried activity and its evolution are discussed including some standard astrochemical scenarios. Furthermore, we can use IR excited molecular emission to probe the very inner regions of luminous infrared galaxies (LIRGs) allowing us to get past the optically thick dust barrier of the compact obscured nuclei, e.g. in the dusty LIRG NGC4418. High resolution studies are often necessary to separate effects of excitation and radiative transport from those of chemistry - one example is absorption and effects of stimulated emission in the ULIRG Arp220. Finally, molecular gas in large scale galactic outflows is briefly discussed.

scholarly journals THE INFLOW SIGNATURE TOWARD DIFFERENT EVOLUTIONARY PHASES OF MASSIVE STAR FORMATION

2016 ◽  
Vol 225 (2) ◽  
pp. 21 ◽  
Author(s):  
Mihwa Jin ◽  
Jeong-Eun Lee ◽  
Kee-Tae Kim ◽  
Neal J. Evans II
Keyword(s):  
Star Formation ◽  
Massive Star ◽  
Massive Star Formation

scholarly journals Uncovering the earliest stages of massive star formation

2005 ◽  
Vol 1 (S227) ◽  
pp. 157-162 ◽  
Author(s):  
M. G. Burton ◽  
T. Hill ◽  
S. N. Longmore ◽  
C. R. Purcell ◽  
A. J. Walsh
Keyword(s):  
Star Formation ◽  
Massive Star ◽  
Massive Star Formation
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