Search results for "STELLA"
showing 10 items of 1995 documents
Spectral classification & physical parameters of the IPHAS CBe stars in the BCD system.
2017
The INT Photometric Hα Survey (IPHAS) has detected tens of thousands of emission line objects in the Northern Galactic Plane. Spectroscopic follow-up has shown that the vast majority of them are Classical Be (CBe) stars, rapidly rotat- ing main sequence B type stars which develop an outflowing circumstellar disk by mechanisms not yet completely understood. In this work we present a study of the full catalogue of the CBe stars discovered by IPHAS. We have analyzed 805 low resolution spectra of 732 IPHAS CBe stars. With a semi-automatic proce- dure, which we evaluate at the first part of this work, we obtained the relevant physical parameters, including the effective temperature, surface grav…
La pensión de Grabado de la Diputación de Valencia, 1951: Vicente Castellano
2016
Reconstrucción de la pronunciación castellana medieval : la voz de los poetas
2013
Es bien sabido que la lengua hablada es anterior al proceso de escritura, en tanto que este, entendido como un sistema fonográfico, supone la existencia de cierto grado de conciencia fonológica, por lo que se hace necesario recurrir a una serie de instrumentos que permita la correcta interpretación de las grafías en su contexto fónico más adecuado, es decir, la relación que media entre los signos escritos y las unidades de lengua, ya que la arbitrariedad y la motivación son características que afectan tanto a los sistemas logográficos como fonográficos. Esta es la razón que justifica el establecimiento previo de los rasgos fonético-fonológicos de una lengua para, de esta manera, aclarar el …
Quasi-periodic dipping in the ultraluminous X-ray source, NGC 247 ULX-1
2021
Most ultraluminous X-ray sources (ULXs) are believed to be stellar mass black holes or neutron stars accreting beyond the Eddington limit. Determining the nature of the compact object and the accretion mode from broadband spectroscopy is currently a challenge, but the observed timing properties provide insight into the compact object and details of the geometry and accretion processes. Here we report a timing analysis for an 800 ks XMM-Newton campaign on the supersoft ultraluminous X-ray source, NGC 247 ULX-1. Deep and frequent dips occur in the X-ray light curve, with the amplitude increasing with increasing energy band. Power spectra and coherence analysis reveals the dipping preferential…
The General Antiparticle Spectrometer (GAPS) - Hunt for dark matter using low energy antideuterons
2011
The GAPS experiment is foreseen to carry out a dark matter search using a novel detection approach to detect low-energy cosmic-ray antideuterons. The theoretically predicted antideuteron flux resulting from secondary interactions of primary cosmic rays with the interstellar medium is very low. So far not a single cosmic antideuteron has been detected by any experiment, but well-motivated theories beyond the standard model of particle physics, e.g., supersymmetry or universal extra dimensions, contain viable dark matter candidates, which could led to a significant enhancement of the antideuteron flux due to self-annihilation of the dark matter particles. This flux contribution is believed to…
L’inserimento dei laureati nel mondo del lavoro: alcuni risultati dell’indagine STELLA
2007
Nel presente articolo si analizzano i dati STELLA relativi alla II indagine occupazionale, confrontandoli con i risultati per il solo ateneo di Palermo.
Ieremias retratado : Oracion funebre en las memorables honras que hizo el ... Convento de San Sebastian de Xativa, del Orden de ... S. Agustin, al fe…
Port. amb orla tip Fris, caplletra ornada, filet, asteriscos Text a 1 col. - Postil·les. - Reclams Sign.: [ ]1, [2 calderons]4, A-C4, D2
Light Curves of Radio Supernovae
2007
We present the results from the on-going radio monitoring of recent type II supernovae (SNe), including SNe 2004et, 2004dj, 2002hh, 2001em, and 2001gd. Using the Very Large Array to monitor these supernovae, we present their radio light-curves. From these data we are able to discuss parameterizations and modeling and make predictions of the nature of the progenitors based on previous research. Derived mass loss rates assume wind-established circumstellar medium, shock velocity ~10,000 km/s, wind velocity ~10 km/s, and CSM Temperature ~10,000 K.
Oracion funebre en las solemnisssimas exequias que en el ... Convento de las Religiosas Agustinas Descalzas de Santa Ursula de la ciudad de Valencia …
Retrat calc. de Vicenta del Corazón de Jesús en f. de làm.: "Jm. Giner fecit" Fris, caplletres ornades, filets Text a 1 col. - Reclams Sign.: *4, **4, A-E4
Verdadero retrato de la gloriosa Virge, y Martir Santa Vicenta Romana, venerada en la Villa de Cantavieja la que por amar firme, y constante la Fè de…
Grav. xil. enmarcat de "Santa Vicenta virgen y martir" Text a dues col Reclam