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- Center for Astrophysics Harvard & SmithsonianUS68 papers
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4 papers · 1 filter
A study of bright Southern Long Period Variables
T. Lebzelter, K. H. Hinkle, P. R. Wood +2
In this paper we present radial velocity curves of AGB variables that exhibit various kinds of anomalies: Semiregular variables (SRVs) with typical mira periods, SRVs exceeding the…
A Neptune-Mass Planet Orbiting the Nearby M Dwarf GJ 436
Paul Butler, Steven S. Vogt, Geoffrey W. Marcy +5
We report precise Doppler measurements of GJ 436 (M2.5V) obtained at Keck Observatory. The velocities reveal a planetary companion with orbital period of 2.644 d, eccentricity of 0…
SB9: The Ninth Catalogue of Spectroscopic Binary Orbits
D. Pourbaix, A. A. Tokovinin, A. H. Batten +6
The Ninth Catalogue of Spectroscopic Binary Orbits (http://sb9.astro.ulb.ac.be) continues the series of compilations of spectroscopic orbits carried out over the past 35 years by B…
Vertically Iterated Classical Enrichment
Stefan Forcey
We propose a recursive definition of V-n-categories and their morphisms. We show that for V k-fold monoidal the structure of a (k-n)-fold monoidal strict (n+1)-category is possesse…