1. Главная
  2. Ресурсы
  3. Библиотечный поиск
Near‐Infrared andStar‐formingProperties of LocalLuminous InfraredGalaxies A. Alonso‐HerreroG. H. RiekeMarcia Rieke2006 год

Near‐Infrared and Star‐forming Properties of Local Luminous Infrared Galaxies
статья из журнала

Полный текстСтраница публикацииПубликация в OpenAlex
Аннотация: We use HST NICMOS continuum and Pa-alpha observations to study the near-infrared and star-formation properties of a representative sample of 30 local (d ~ 35-75Mpc) luminous infrared galaxies (LIRGs, infrared 8-1000um luminosities of L_IR=11-11.9[Lsun]). The data provide spatial resolutions of 25-50pc and cover the central ~3.3-7.1kpc regions of these galaxies. About half of the LIRGs show compact (~1-2kpc) Pa-alpha emission with a high surface brightness in the form of nuclear emission, rings, and mini-spirals. The rest of the sample show Pa-alpha emission along the disk and the spiral arms extending over scales of 3-7kpc and larger. About half of the sample contains HII regions with H-alpha luminosities significantly higher than those observed in normal galaxies. There is a linear empirical relationship between the mid-IR 24um and hydrogen recombination (extinction-corrected Pa-alpha) luminosity for these LIRGs, and the HII regions in the central part of M51. This relation holds over more than four decades in luminosity suggesting that the mid-IR emission is a good tracer of the star formation rate (SFR). Analogous to the widely used relation between the SFR and total IR luminosity of Kennicutt (1998), we derive an empirical calibration of the SFR in terms of the monochromatic 24um luminosity that can be used for luminous, dusty galaxies.
Год издания: 2006
Авторы: A. Alonso‐Herrero, G. H. Rieke, Marcia Rieke, L. Colina, Pablo G. Pérez‐González, S. D. Ryder
Издательство: IOP Publishing
Источник: The Astrophysical Journal
Ключевые слова: Galaxies: Formation, Evolution, Phenomena, Astrophysics and Star Formation Studies, Astronomy and Astrophysical Research
Другие ссылки: The Astrophysical Journal (HTML)
LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (PDF)
LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (HTML)
DIGITAL.CSIC (Spanish National Research Council (CSIC)) (PDF)
DIGITAL.CSIC (Spanish National Research Council (CSIC)) (HTML)
DataCite API (HTML)