Grundriß der Astronomie : in Form eines Cursus und nach leicht faßlichen Begriffen : mit 3 Kupfertafeln

entworfen vom Dr. Ferdinand v. Sommer

Anleitung zum Verständnisse des Kalenders zugleich als Einleitung in das Studium der Astronomie

von Joseph Brem

What the awkward relatives tell us about planetary nebulae hosting binary systems

Relatives to Planetary Nebulae, such as barium stars or symbiotic systems, can shed light on the connection between Planetary Nebulae and binarity. Because of the observational selection effects against direct spectroscopic detection of binary PNe cores with orbital periods longer than a few dozen days, at present these "awkward relatives" are a critical source of our knowledge about the binary PNe population at longer periods. Below a few examples are discussed, posing constraints on the attempts to model nebula, ejection process in a binary. © 2006 International Astronomical Union.

A new method based on Markov chains for deriving SB2 orbits directly from their spectra

info:eu-repo/semantics/published

New SB2 orbital elements for accurate masses with Gaia: HD 9312, HD 9313 and HD 183255

info:eu-repo/semantics/published

New SB2 binaries for accurate stellar masses with Gaia

info:eu-repo/semantics/published

Improved SB2 orbits for HIP 12081 and HIP 87895

info:eu-repo/semantics/published

Comparison of the experimental, semi-experimental and ab initio equilibrium structures of acetylene: Influence of relativisitic effects and of the diagonal Born-Oppenheimer corrections

The equilibrium structure of acetylene (also named ethyne) has been reinvestigated to resolve the small discrepancies noted between different determinations. The size of the system as well as the large amount of available experimental data provides the quite unique opportunity to check the magnitude and relevance of various contributions to equilibrium structure as well as to verify the accuracy of experimental results. With respect to pure theoretical investigation, quantum-chemical calculations at the coupled-cluster level have been employed together with extrapolation to the basis set limit, consideration of higher excitations in the cluster operator, inclusion of core correlation effects as well as relativistic and diagonal Born-Oppenheimer corrections. In particular, it is found that the extrapolation to the complete basis set limit, the inclusion of higher excitations in the electronic-correlation treatment and the relativistic corrections are of the same order of magnitude. It also appears that a basis set as large as a core-valence quintuple-zeta set is required for accurately accounting for the inner-shell correlation contribution. From a pure experimental point of view, the equilibrium structure has been determined using very accurate rotational constants recently obtained by a global analysis (that is to say that all non-negligible interactions are explicitely included in the Hamiltonian matrix) of rovibrational spectra. Finally, a semi-experimental equilibrium structure (where the equilibrium rotational constants are obtained from the experimental ground state rotational constants and computed rovibrational corrections) has been obtained from the available experimental ground-state rotational constants for ten isotopic species corrected for computed vibrational corrections. Such a determination led to the revision of the ground-state rotational constants of two isotopologues, thus showing that structural determination is a good method to identify errors in experimental rotational constants. The three structures are found in a very good agreement, and our recommended values are rCC 120.2958(7) pm and rCH 106.164(1) pm. © 2011 American Institute of Physics.

The telescope array experiment: Status and prospects

The Telescope Array is a detector of extensive air shower produced by ultra High energy cosmic ray. This detector is located on Utah, USA. The construction have been completed and the full operation has been running from March 2008. In this talk, the status of observation and our prospects are described. © 2010 American Institute of Physics.

Erratum: Fundamental amplitude noise limitations to supercontinuum spectra generated in a microstructured fiber (Appl. Phys. B (2003) 77 (269-277))

SCOPUS: er.j

Almanach // pour 30. ans // Dedié à la Reine. // Par son très humble très soumis et fidel sujet Leguin [sic] : [estampe]

Destinataire de l'envoi : Marie-Antoinette (reine de France ; 1755-1793)

Grammaire attribuée à Bède ou à Alcuin (2 et 29). Profession de foi (21).

Catalogue de l'abbaye de Corbie (éd. d'E. Coyecque, Cat des mss des bibliothèques de France, XIX, p.XI-XLVIII) 1621: n°434 ? Ex-libris : f.1 : « Sti Germani a Pratis »

Liber Themestii de dialecticis locis.

Catalogue de l'abbaye de Corbie (éd. d'E. Coyecque, Cat des mss des bibliothèques de France, XIX, p.XI-XLVIII) XIIe s.: n°289 Ex-libris : f.1 : « ex Libris Corbeiensis Monasterii » ; — « Sti Germani a Pratis »

Latin 14704

Contient : I Roberti Linchoniensis commentum supra librum posteriorum, et super librum de bona fortuna (29) ; Bartholomei de Brugis scripta supra librum yconomicorum Aristotelis (61) ; Auctoritates ex diversis libris philosophie naturalis Aristotelis (75) ; Compendiosa extractio, omnium propositionum notabilium librorum ethicorum, etc. (101) ; E commento Alberti in libros metheororum (123) ; Summa dictaminis composita per Laurentium de civitate Rome (135) ; Proverbia sive notabilia juris canonici et civilis (142v) ; II Traité d'astronomie composé à Marseille en 1111 (144) ; Major introductorius Abumasar astrologi (170) ; Liber nativitatum (234) ; Liber Alfargani de differentia circulorum (248)