Dynamic parallaxes of extra-galactic nebulae.
نویسندگان
چکیده
منابع مشابه
Accurate Extra-Galactic Distances and Dark Energy: Anchoring the Distance Scale with Rotational Parallaxes
We investigate how the current and future uncertainty on the Hubble constant affects the uncertainty in the Equation of State (EOS) of Dark Energy (DE). We start with the approximate linear relations between the cosmological parameters as presented by (Spergel et al. 2006), and use the standard error-propagation relations to estimate the effects of improving the Cosmic Microwave Background (CMB...
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In order to understand the nature of the lenses that generate microlensing events, one would like to measure their mass, distance, and velocity. Unfortunately, current microlensing experiments measure only one parameter of the events, the characteristic timescale, which is a combination of the underlying physical parameters. Other methods are required to extract additional information. Parallax...
متن کاملRepublication of: A homogeneous universe of constant mass and increasing radius accounting for the radial velocity of extra-galactic nebulae
Original paper: Georges Lemaître, Un univers homogène de masse constante et de rayon croissant, rendant compte de la vitesse radiale des nébuleuses extra-galactiques, Annales de la Société Scientifique de Bruxelles 47A, pp. 49–59 (1927). Translated from French by Jean-Pierre Luminet, Laboratoire Univers et Théories, Observatoire de Paris-CNRS, Université Paris Diderot, France, e-mail: jean-pier...
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 1954
ISSN: 0004-6256
DOI: 10.1086/107043