32 research outputs found
Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe
We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratios in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially resolved spectroscopy for thousands of nearby galaxies (median ). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGNs and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5 m Sloan Foundation Telescope at the Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5 m du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in 2016 July
Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe
We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratios in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially resolved spectroscopy for thousands of nearby galaxies (median ). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGNs and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5 m Sloan Foundation Telescope at the Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5 m du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in 2016 July
The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the Extended Baryon Oscillation Spectroscopic Survey and from the Second Phase of the Apache Point Observatory Galactic Evolution Experiment
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since 2014 July. This paper describes the second data release from this phase, and the 14th from SDSS overall (making this Data Release Fourteen or DR14). This release makes the data taken by SDSS-IV in its first two years of operation (2014–2016 July) public. Like all previous SDSS releases, DR14 is cumulative, including the most recent reductions and calibrations of all data taken by SDSS since the first phase began operations in 2000. New in DR14 is the first public release of data from the extended Baryon Oscillation Spectroscopic Survey; the first data from the second phase of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2), including stellar parameter estimates from an innovative data-driven machine-learning algorithm known as "The Cannon"; and almost twice as many data cubes from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous release (N = 2812 in total). This paper describes the location and format of the publicly available data from the SDSS-IV surveys. We provide references to the important technical papers describing how these data have been taken (both targeting and observation details) and processed for scientific use. The SDSS web site (www.sdss.org) has been updated for this release and provides links to data downloads, as well as tutorials and examples of data use. SDSS-IV is planning to continue to collect astronomical data until 2020 and will be followed by SDSS-V
Badajoz. Fortificaciones (1740). 1:720
Manuscrito a plumilla en tintas negra y roja y coloreado a la acuarela en varios coloresRelación de los dueños de las tierras, indicada mediante clave alfabética, así como de las fanegas de trigo que producen y su precioNota relativa sobre las tierras que comprende el fuerte proyectadoInserta: Developamiento o elevacion para la inteligencia de los Niveles y pendientes del parapeto del Camino cubierto del fuerte proyectado sobre la altura de Pardaleras extramuros de esta Plaza de Badaxoz. - Escala [ca. 1:240], 30 tus. [= 24,7 cm]Entelado en 2 cuarterone
CARTAGENA (Colombia). Fortificaciones (1750?). 1:800
Fecha de ejecución tomada de la: "Cartografía y Relaciones Históricas de Ultramar". Tomo V. Colombia, Panamá, Venezuela. 1980Manuscrito a plumilla en tinta negra y coloreado a la acuarela en carmín y amarill
Badajoz. Fortificaciones (1741). 1:1.800
Presenta el plano de la plaza y sus defensasManuscrito firmado, rubricado y fechado en Badajoz. A plumilla en tintas negra y roja y coloreado a la acuarela en varios coloresRelación de las principales fortificaciones y canteras de la ciudad, indicada mediante clave alfabéticaIndica vegetación, cultivos y el curso del arroyo Rivilla con flechaEntelado en 3 cuarterone
BOCA CHICA (Colombia) (Canal). Fortificaciones (1742?). 1:7000
Presenta el canal de Bocachica, entrada de la bahía de Cartagena de IndiasMención de responsabilidad tomada del: "Catálogo de mapas y planos. Colombia", del Servicio Geográfico del Ejército. 1973Relieve representado por sombreadoManuscrito a plumilla en tinta negra y coloreado a la acuarela en verdeRelación de las fortificaciones, caminos y líneas de derrota de entrada al puerto, indicados por clave numéricaSeñala las posiciones de las baterías y el campamento inglés en el ataque realizado en 174
Polypharmacy among community-dwelling elderly in Singapore: Prevalence, risk factors and association with medication non-adherence
10.1177/2010105819868485Proceedings of Singapore Healthcare201010581986848-20101058198684