An empirical calibration of star formation rate estimators
نویسندگان
چکیده
منابع مشابه
Star Formation and System Calibration
Large scale star formation and chemical evolution are studied in the Bar of the LMC. For our programme, we use the HST Wide Field Planetary Camera and uvby photometry. This calls for careful calibration of the HST WFPC2 uvby system. Such calibration is derived through observations of cluster fields with both large ground based telescopes, including generous amounts of standard stars, and with t...
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Using integrated optical spectrophotometry for 412 star-forming galaxies at z ∼ 0, and fiber-aperture spectrophotometry for 120, 846 SDSS galaxies at z ∼ 0.1, we investigate the Hα λ6563, Hβ λ4861, [O ii] λ3727, and [O iii] λ5007 nebular emission lines and the U -band luminosity as quantitative star-formation rate (SFR) indicators. We demonstrate that the extinction-corrected Hα λ6563 luminosit...
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Context. Over the past few years several studies have provided estimates of the SFR (star-formation rate) or the total infrared luminosity from just one infrared band. However these relations are generally derived for entire galaxies, which are known to contain a large scale diffuse emission that is not necessarily related to the latest star-formation episode. Aims. We provide new relations to ...
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Infrared (IR) luminosity of galaxies originating from dust thermal emission can be used as an indicator of the star formation rate (SFR). Inoue et al. (2000, IHK) have derived a formula for the conversion from dust IR luminosity to SFR by using the following three quantities: the fraction of Lyman continuum luminosity absorbed by gas (f), the fraction of UV luminosity absorbed by dust (ǫ), and ...
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Since the breakdown of the Bretton Woods System, exchange arrangements of countries have become flexible. Several attempts have been made to determine whether the theories of optimum currency areas adequately explain the choice of an exchange rate system. In this paper, the optimum currency area is retested. Using cross-section data, a regression analysis of the choice of an exchange rate syste...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2002
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-8711.2002.05285.x