Solar magnetic carpet I: simulation of synthetic magnetograms

This paper describes a new 2D model for the photospheric evolution of the magnetic carpet. It is the first in a series of papers working towards constructing a realistic 3D non-potential model for the interaction of small-scale solar magnetic fields. In the model, the basic evolution of the magnetic elements is governed by a supergranular flow profile. In addition, magnetic elements may evolve through the processes of emergence, cancellation, coalescence and fragmentation. Model parameters for the emergence of bipoles are based upon the results of observational studies. Using this model, several simulations are considered, where the range of flux with which bipoles may emerge is varied. In all cases the model quickly reaches a steady state where the rates of emergence and cancellation balance. Analysis of the resulting magnetic field shows that we reproduce observed quantities such as the flux distribution, mean field, cancellation rates, photospheric recycle time and a magnetic network. As expected, the simulation matches observations more closely when a larger, and consequently more realistic, range of emerging flux values is allowed (4×1016 - 1019 Mx). The model best reproduces the current observed properties of the magnetic carpet when we take the minimum absolute flux for emerging bipoles to be 4×1016 Mx. In future, this 2D model will be used as an evolving photospheric boundary condition for 3D non-potential modeling.

Spectroscopic constants and term values for the X2πi state of OH (v = 0-10)

info:eu-repo/semantics/published

"The Emperor of the Moon" (1687) d'Aphra Behn : contribution dramatique au débat scientifique et littéraire sur la pluralité des mondes

International audience

Graenum Berger papers, undated, (1825)-2002

Contains correspondence, minutes, reports, clippings, manuscripts, research materials, journal articles, photographs and publications; primarily relating to Berger's involvement with Ethiopian Jewry and his efforts to bring about their rescue through the organization he formed, the American Association for Ethiopian Jews. Also contains material from Berger's other interests- his writings, travels through the world and to Israel and Ethiopia, community affiliations, research in Black American Jews, profession as a Jewish social work executive, his commitment to Jewish causes and to Israel. There are also many personal and biographical materials from the numerous long-term friendships and associations he established.

Letter written by Napoleon Buonaparte (Bonaparte) to Guillaume Thomas Francois Raynal, June 24, 1790

Translation: Sir, It will probably be difficult for you to remember among the many strangers who annoy you with their admiration of a person to whom you kindly made civilities last year1 during a pleasant conversation about Corsica. I would be grateful if you could take a look at this sketch of his history.2 I present here the first of two letters. If you agree to them, I will send you the end. My brother, whom I recommend not to forget his deputies' commission to escort Paoli to his country,3 and to come and receive a lesson in virtue and humanity, will give them to you. I respectfully your most humble and obedient servant.4 Buonaparte, artillery officer Ajaccio, [Corsica] June 24 the first year of freedom [1790]5 1 Relations between Napoleon and Raynal have begun in 1789, which seems to confirm a confidence to Las Cases ( Memorial of St. Helena , La Pléiade , vol. I, p. 83) . 2 Latest version of history project of Corsica : Letters on Corsica to Abbe Raynal . 3 Joseph is part of a delegation sent by the city of Ajaccio to host Paoli 's return from exile in London . In doing so he has to go through Marseille where Raynal resides. 4 Shipping autograph, National Archives , 400 AP Biography 1. In the first years of Napoleon Bonaparte (1840) , Coston gives a rough version of this letter that it dates from 1786 , which is impossible because Raynal did not return to France that ' in 1787. Published for the first time in the Memories of Lord Holland (1851) , shipping is now kept in the national Archives Napoleons funds . 5 The letter is dated "June 24, the first year of freedom" (the word "freedom" is underlined twice). Given the dates of stay in Corsica Napoleon, it seems that is present in Ajaccio the month of June in 1790.

Letter by Napoleon Buonaparte (Bonaparte) to Guillaume Thomas Francois Raynal, 24 June 1790

A letter written by Napoleon Buonaparte (Bonaparte) to Guillaume Thomas Francois Raynal, dated at Ajaccio [Corsica] June 24 the first year of freedom [1790]. The letter is written in French. A transcription and a translation of the letter are also available.

Ueber den Begriff des wahrhaften Krieges in Bezug auf den Krieg im Jahre 1813. Ein Entwurf für den Vortrag, mit einer Rede verwandten Inhalts herausgegeben.

Mode of access: Internet.

Mémoires de Madame la duchesse dÁbrantés, ou Souvenirs historiques sur Napoléon, la révolution, le directoire, le consulat, lémpire et la restauration.

Mode of access: Internet.

Mémoires de Madame la duchesse dÁbrantés, ou Souvenirs historiques sur Napoléon, la révolution, le directoire, le consulat, lémpire et la restauration.

Mode of access: Internet.

Bulletin de la société archéologique, historique et artistique le Vieux Papier : pour l'étude de la vie et des moeurs d'autrefois.

Some issues include list of members.

L'expédition d'Egypte /

On added t.p.: Septième série.--Format in-80 cavalier ill.

Mémoire de Marie Caroline, reine de Naples, intitulé De la révolution de royaume de Sicile ... par un témoin oculaire ...

Includes bibliographical references (pages xxiii-xxv) and index.