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Star and dust formation activities in aztec-3: a starburst galaxy at z=5.3
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Dwek, Eliahu |
| Copyright Year | 2011 |
| Description | Analyses of of high-redshift ultraluminous infrared (IR) galaxies traditionally use the observed optical to submillimeter spectral energy distribution (SED) and estimates of the dynamical mass as observational constraints to derive the star formation rate (SFR), the stellar mass, and age of these objects. In this lecture we add this constraint to the analysis of AzTEC-3, a starburst galaxy at z=5.3. We construct different stellar and chemical evolutionary scenarios, constrained to produce the inferred dust mass and observed luminosity before the associated stellar mass exceeds the observational limit. A robust result of our models is that all scenarios require most of the radiating dust mass to have been accreted in molecular clouds. Our new procedure highlights the importance of a multiwavelength approach, and of the use of dust evolution models in constraining the age and the star formation activity and history in galaxies. |
| File Size | 30976 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20120001867 |
| Archival Resource Key | ark:/13960/t4xh4kt6n |
| Language | English |
| Publisher Date | 2011-10-27 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Red Shift Dust Star Formation Starburst Galaxies Stars Spectral Energy Distribution Luminosity Mass Distribution Submillimeter Waves Infrared Radiation Estimates Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
