Journal ArticleDOI
Reddenings derived from H I and galaxy counts : accuracy and maps.
D. Burstein,C. Heiles +1 more
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This article is published in The Astronomical Journal.The article was published on 1982-08-01. It has received 1025 citations till now. The article focuses on the topics: Disc galaxy & Interacting galaxy.read more
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Radio galaxies at z 2.5: Results from Keck spectropolarimetry
Joel Vernet,R. A. E. Fosbury,M. Villar-Martín,Marshall H. Cohen,Andrea Cimatti,S. di Serego Alighieri,Robert W. Goodrich +6 more
TL;DR: In this article, the authors exploit the opportunity to eliminate the quasar glare by performing sensitive spectropolarimetry with the Keck II telescope of a sample of radio galaxies with redshifts around 2.5.
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The nuclear reddening curve for active galactic nuclei and the shape of the infrared to X-ray spectral energy distribution
TL;DR: In this paper, extinction curves derived from broad emission lines and continua of samples of 72 radio-loud and 1018 radio-quiet active galactic nuclei (AGNs) were derived.
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Heavy elements in Galactic and Magellanic Cloud H ii regions: recombination‐line versus forbidden‐line abundances
TL;DR: In this article, the authors obtained deep optical, long-slit spectrophotometry of the Galactic HII regions M 17, NGC 3576 and of the Magellanic Cloud H II regions 30 Doradus, LMC N11B and SMC N66, recording the optical recombination lines of CII, NII and OII.
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Estimation of Stellar Metal Abundance. II. A Recalibration of the Ca II K Technique, and the Autocorrelation Function Method
Timothy C. Beers,Timothy C. Beers,Silvia Rossi,Silvia Rossi,Silvia Rossi,John E. Norris,Sean G. Ryan,Thomas Shefler,Thomas Shefler,Thomas Shefler +9 more
TL;DR: In this paper, a method for the estimation of stellar metal abundance, parameterized as [Fe/H], based on medium-resolution (1-2 A) optical spectra (the majority of which cover the wavelength range 3700-4500 A).
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Streaming motions of galaxy clusters within 12 000 km s−1– V. The peculiar velocity field
TL;DR: In this article, the authors analyzed the peculiar velocity field traced by 56 clusters within 120 h − 1 Mpc in the Streaming Motions of Abell Clusters (SMAC) sample.