A Catalog of Point Sources Towards NGC 1333

I present a catalog of point source objects towards NGC 1333, resolving a wide variety of confusion about source names (and occasionally positions) in the literature. I incorporate data from optical to radio wavelengths, but focus most of the effort on being complete and accurate from J (1.25 um) to 24 um. The catalog encompasses 52 deg<RA<52.5 deg and 31 deg<Dec<31.6 deg. Cross-identifications include those from more than 25 papers and catalogs from 1994-2014, primarily those in wide use as origins of nomenclature. Gaps in our knowledge are identified, with the most important being a lack of spectroscopy for spectral types or even confirmation of youth and/or cluster membership. I fit a slope to the spectral energy distribution (SED) between 2 and 24 um for the members (and candidate members) to obtain an SED classification, and compare the resulting classes to those for the same sources in the literature, and for an SED fit between 2 and 8 um. While there are certainly differences, for the majority of the sources, there is good agreement.Comment: 34 pages, 7 figures. Accepted to AJ. Table 2 and 3 will be published in the journal, and are currently available upon request to the autho

An X-ray and Infrared Survey of the Lynds 1228 Cloud Core

The nearby Lynds 1228 (L1228) dark cloud at a distance of ~200 pc is known to harbor several young stars including the driving sources of the giant HH 199 and HH 200 Herbig-Haro outflows. L1228 has been previously studied at optical, infrared, and radio wavelengths but not in X-rays. We present results of a sensitive 37 ks Chandra ACIS-I X-ray observation of the L1228 core region. Chandra detected 60 X-ray sources, most of which are faint (<40 counts) and non-variable. Infrared counterparts were identified for 53 of the 60 X-ray sources using archival data from 2MASS, Spitzer, and WISE. Object classes were assigned using mid-IR colors for those objects with complete photometry, most of which were found to have colors consistent with extragalactic background sources. Seven young stellar object (YSO) candidates were identified including the class I protostar HH 200-IRS which was detected as a faint hard X-ray source. No X-ray emission was detected from the luminous protostar HH 199-IRS. We summarize the X-ray and infrared properties of the detected sources and provide IR spectral energy distribution modeling of high-interest objects including the protostars driving the HH outflows.Comment: 38 pages, 7 tables, 8 figures; to appear in A

The NASA/IPAC Teacher Archive Research Program (NITARP)

NITARP, the NASA/IPAC Teacher Archive Research Program, partners small groups of largely high school educators with research astronomers for a year-long research project. This paper presents a summary of how NITARP works. Because NITARP has been running since 2009, and its predecessor ran from 2005-2008, there have been many lessons learned over the last 13 years, some of which are also discussed here. The most important of these include the following. Scientists must see their work with the educators on their team as a partnership of equals. Educators must be reminded often that they will not have command of all the information needed during their NITARP year, and that it is ok to ask lots of questions. NITARP teams need to be about 5 people: a mentor astronomer, a mentor teacher (who has been through the program before), and 3 new educators; larger or smaller teams just don’t work as well. Teams need to communicate regularly and frequently through their year

Comparació dels sistemes de dispensació de medicaments veterinaris francès i espanyol

Treball presentat a l'assignatura de Deontologia i Veterinària Legal (21223

Els "Palatia" Septimans : indicis de l'organització terriorial andalusina al nord dels Pirineus

La presència de l'estat andalusí en terres septimanes ha estat, salvant comptades ocasions, tradicionalment negligida per la historiografia. En aquest text, tot aplicant una línia de recerca contrastada a Catalunya Vella que identifica els topònims derivats de palatium amb una primerenca xarxa d'establiments creats a partir de la conquesta islàmica, pretenem donar una primera visió de quin fou l'abast de l'organització territorial d'aquest estat al nord dels Pirineus. L'estudi de les fonts documentals i de la toponímia conservada ens permet veure com aquests topònims mostren unes pautes de dispersió coherents, alhora que es concentren sense excepcions a la meitat meridional de la SeptimàniaPresence of Andalusian State in Septimania has been traditionally neglected, with few exceptions, by historiography. In this text, we try to offer a view of the territorial organisation of the Andalusian State at the north of the Pyrenees by means of a line of research, contrasted in Catalunya Vella, that identifies the toponyms derived from palatium with a primitive network of settlements built during the Islamic conquest. The study of documentary and toponymic sources reveals that these toponyms show the guidelines of a logical spread, always concentrated in southern Septimani

The Distance to NGC 2264

We determine the distance to the open cluster NGC 2264 using a statistical analysis of cluster member inclinations. We derive distance-dependent values of sin i (where i is the inclination angle) for 97 stars in NGC 2264 from the rotation periods, luminosities, effective temperatures, and projected equatorial rotation velocities, v sin i, measured for these stars. We have measured 96 of the v sin i values in our sample by analyzing high-resolution spectra with a cross-correlation technique. We model the observed distribution of sin i for the cluster by assuming that member stars have random axial orientations and by adopting prescriptions for the measurement errors in our sample. By adjusting the distance assumed in the observed sin i distribution until it matches the modeled distribution, we obtain a best-fit distance for the cluster. We find the data to be consistent with a distance to NGC 2264 of 913 pc. Quantitative tests of our analysis reveals uncertainties of 40 and 110 pc due to sampling and systematic effects, respectively. This distance estimate suggests a revised age for the cluster of 1.5 Myrs, although more detailed investigations of the full cluster membership are required to draw strong conclusions.Comment: 12 pages, 11 figure

Els Inicis de l'edat mitjana (segles VIII-IX) al Penedès i el Baix Llobregat: una aproximació arqueològica

Com en períodes anteriors, l'estudi de l'alta edat mitjana a Catalunya, especialment durant els segles anteriors a la profusió de documents vinculats a l'època carolíngia i comtal, permet poques aproximacions plantejades des de fora de la pràctica arqueològica. Així succeeix als territoris situats immediatament a ponent del Llobregat, els quals majoritàriament no passaran a incorporar-se a l'òrbita comtal fins a inicis del segle X. Aquest text pretén contribuir, a partir de dades ja conegudes i mitjançant la comparació amb paral·lels propers, a precisar el context cronològic de certs elements i estructures vinculats al registre arqueològic i que pensem que poden ubicar-se entre els segles VIII i IX. Així mateix, es vol fer una revisió de determinades construccions arquitectòniques, com són temples i fortificacions, per als quals es proposen algunes hipòtesis fundacionals.As in former periods, the study of the early middle ages in Catalonia allows few approaches brought up out of the archaeological practice, specially during the centuries before the profusion of documents linked to the Carolingian and county periods. This happens in the territories located westward of Llobregat river, which mostly will not join the county field until the beginning of the 10th century. Taking the already known data as a starting point and by means of a comparison with near parallel cases, this text intends to contribute to the determination of the chronological context of certain elements and structures linked to the archaeological record, which can be dated between the 8th and 9th centuries. Likewise, this text pretends a revision of some architectural constructions, such as temples and fortifications for which some foundational hypotheses are proposed

Ressenyes

Index de les obres ressenyades: J. LÓPEZ QUIROGA ; A. M. MARTÍNEZ TEJERA ; J. MORÍN DE PABLOS, (eds.) Gallia e Hispania en el contexto de la presencia «germánica» (ss. V-VII): Balance y perspectiva