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The collapse of Io's primary atmosphere in Jupiter eclipse

Titulo: 
The collapse of Io's primary atmosphere in Jupiter eclipse
Autores: 
Tsang, C.C.C., Spencer, J.R., Lellouch, E., Lopez-Valverde, M.A., Richter, M.J.
Resumen: 
Volcanic outgassing due to tidal heating is the ultimate source of a tenuous SO2 atmosphere around Jupiter's moon Io. The question of whether SO2 frost on the surface plays a part, and to what degree, in maintaining Io's atmosphere with the constant volcanic outgassing is still debated. It is believed that for a sublimation-supported atmosphere, the primary atmosphere should collapse during eclipses by Jupiter, as the SO2 vapor pressure is strongly coupled to the temperature of the ice on the surface. No direct observations of Io's atmosphere in eclipse have previously been possible, due to the simultaneous need for high spectral and time sensitivity, as well as a high signal-to-noise ratio. Here we present the first ever high-resolution spectra at 19 µm of Io's SO2 atmosphere in Jupiter eclipse from the Gemini telescope. The strongest atmospheric band depth is seen to dramatically decay from 2.5 ± (0.08)% before the eclipse to 0.18 ± (0.16)% after 40 min in eclipse. Further modeling indicates that the atmosphere has collapsed shortly after eclipse ingress, implying that the atmosphere of Io has a strong sublimation-controlled component. The atmospheric column density—from pre-eclipse to in-eclipse—drops by a factor of 5 ± 2. ©2016. American Geophysical Union. All Rights Reserved.
Autor principal: 
Tsang, C.C.C.
Autor/es del IAA: 
Lopez-Valverde, M.A.
DOI: 
10.1002/2016JE005025
Revista: 
Journal of Geophysical Research E: Planets
Fecha de publicación: 
2016/08/01
Volumen: 
120
Issue: 
8
Páginas: 
1400-1410
Tipo de documento: 
article
Palabras clave: 
atmosphere; ice sublimation; Io; volcanoes

Pipe3D, a pipeline to analyze integral field spectroscopy data: I. New fitting philosophy of FIT3D

Titulo: 
Pipe3D, a pipeline to analyze integral field spectroscopy data: I. New fitting philosophy of FIT3D
Autores: 
Sánchez, S.F., Perez, E., Sánchez-Blazquez, P., González, J.J., Rosález-Ortega, F.F., Cano-Díaz, M., Lápez-Cobá, C., Marino, R.A., De Paz, A.G., Mollá, M., Lápez-Sánchez, A.R., Ascasibar, Y., Barrera-Ballesteros, J.
Resumen: 
We present an improved version of FIT3D, a fitting tool for the analysis of the spectroscopic properties of the stellar populations and the ionized gas derived from moderate resolution spectra of galaxies. This tool was developed to analyze integral field spectroscopy data and it is the basis of Pipe3D, a pipeline used in the analysis of CALIFA, MaNGA, and SAMI data. We describe the philosophy and each step of the fitting procedure. We present an extensive set of simulations in order to estimate the precision and accuracy of the derived parameters for the stellar populations and the ionized gas. We report on the results of those simulations. Finally, we compare the results of the analysis using FIT3D with those provided by other widely used packages, and we find that the parameters derived by FIT3D are fully compatible with those derived using these other tools. © Copyright 2016: Instituto de Astronoḿa, Universidad Nacional Autónoma de México.
Autor principal: 
Sánchez, S.F.
Autor/es del IAA: 
Pérez, E.
Revista: 
Revista Mexicana de Astronomia y Astrofisica
Fecha de publicación: 
2016/04
Volumen: 
52
Issue: 
2
Páginas: 
21-53
Tipo de documento: 
article

Pipe3D, a pipeline to analyze integral field spectroscopy data: II. Analysis sequence and CALIFA dataproducts

Titulo: 
Pipe3D, a pipeline to analyze integral field spectroscopy data: II. Analysis sequence and CALIFA dataproducts
Autores: 
Sánchez, S.F., Pérez, E., Sánchez-Blázquez, P., García-Benito, R., Ibarra-Mede, H.J., González, J.J., Rosales-Ortega, F.F., Sánchez-Menguiano, L., Ascasibar, Y., Bitsakis, T., Law, D., Cano-Díaz, M., López-Coba, C., Marino, R.A., De Paz, A.G., López-Sánchez, A.R., Barrera-Ballesteros, J., Galbany, L., Mast, D., Abril-Melgarejo, V., Roman-Lopes, A.
Resumen: 
We present Pipe3D, an analysis pipeline based on the FIT3D fitting tool, developed to explore the properties of the stellar populations and ionized gas of integral field spectroscopy (IFS) data. Pipe3D was created to provide coherent, simple to distribute, and comparable dataproducts, independently of the origin of the data, focused on the data of the most recent IFU surveys (e.g., CALIFA, MaNGA, and SAMI), and the last generation IFS instruments (e.g., MUSE). In this article we describe the different steps involved in the analysis of the data, illustrating them by showing the dataproducts derived for NGC 2916, observed by CALIFA and P-MaNGA. As a practical example of the pipeline we present the complete set of dataproducts derived for the 200 datacubes that comprises the V500 setup of the CALIFA Data Release 2(DR2), making them freely available through the network. Finally, we explore the hypothesis that the properties of the stellar populations and ionized gas of galaxies at the effective radius are representative of the overall average ones, finding that this is indeed the case. © Copyright 2016: Instituto de Astronoḿa, Universidad Nacional Autónoma de México.
Autor principal: 
Sánchez, S.F.
Autor/es del IAA: 
Pérez, E.;García-Benito, R.;Sánchez-Menguiano, L.
Revista: 
Revista Mexicana de Astronomia y Astrofisica
Fecha de publicación: 
2016/04
Volumen: 
52
Issue: 
1
Páginas: 
171-220
Tipo de documento: 
article
Palabras clave: 
Galaxies: structure; Methods: data analysis; Surveys; Techniques: spectroscopic

The Detection and Attribution Model Intercomparison Project (DAMIP v1.0) contribution to CMIP6

Titulo: 
The Detection and Attribution Model Intercomparison Project (DAMIP v1.0) contribution to CMIP6
Autores: 
Gillett, N.P., Shiogama, H., Funke, B., Hegerl, G., Knutti, R., Matthes, K., Santer, B.D., Stone, D., Tebaldi, C.
Resumen: 
Detection and attribution (D and A) simulations were important components of CMIP5 and underpinned the climate change detection and attribution assessments of the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. The primary goals of the Detection and Attribution Model Intercomparison Project (DAMIP) are to facilitate improved estimation of the contributions of anthropogenic and natural forcing changes to observed global warming as well as to observed global and regional changes in other climate variables; to contribute to the estimation of how historical emissions have altered and are altering contemporary climate risk; and to facilitate improved observationally constrained projections of future climate change. D and A studies typically require unforced control simulations and historical simulations including all major anthropogenic and natural forcings. Such simulations will be carried out as part of the DECK and the CMIP6 historical simulation. In addition D and A studies require simulations covering the historical period driven by individual forcings or subsets of forcings only: such simulations are proposed here. Key novel features of the experimental design presented here include firstly new historical simulations with aerosols-only, stratospheric-ozone-only, CO2-only, solar-only, and volcanic-only forcing, facilitating an improved estimation of the climate response to individual forcing, secondly future single forcing experiments, allowing observationally constrained projections of future climate change, and thirdly an experimental design which allows models with and without coupled atmospheric chemistry to be compared on an equal footing. © 2016 The Author(s).
Autor principal: 
Gillett, N.P.
Autor/es del IAA: 
Funke, B.
DOI: 
10.5194/gmd-9-3685-2016
Revista: 
Geoscientific Model Development
Fecha de publicación: 
2016/10/18
Volumen: 
9
Issue: 
10
Páginas: 
3685-3697
Tipo de documento: 
article
Número de artículo: 
3685

Jornada Informativa “Espacio Horizonte 2020”

Title: 
"Horizon 2020 Space" Information Day
Resumen: 
El objetivo de esta jornada reside en presentar la convocatoria 2017 de financiación de proyectos de I+D+i para el sector Espacio

El próximo viernes 4 de noviembre tendrá lugar, en el Instituto de Astrofísica de Andalucía, la Jornada Informativa  “Espacio Horizonte 2020”.

Abstract: 
The objective of this conference lies in presenting the 2017 call for funding of R + D + i for the space sector
Image: 

Confirman que las novas, un tipo de fenómenos explosivos en las estrellas, son la fuente principal de litio del universo

Resumen: 
Se han detectado grandes cantidades de berilio-7, un elemento que se transforma en litio, en la nova Sagittarii 2015 N.2

Image: 

Study confirms that novae, a type of explosive phenomenon in stars, are main source of lithium in the universe

Resumen: 
Large amounts of beryllium-7, an element that decays into lithium, have been found inside nova Sagittarii 2015 N.2

Lithium, the lightest solid element in existence, plays an important role in our lives, both at the biological and the technological level. Like the majority of chemical elements, its origins stem back to astrophysical phenomena, but its point of genesis was so far unclear. Recently, a group of researchers detected enormous quantities of beryllium-7 –an unstable element which decays into lithium in 53.2 days– inside  nova Sagittarii 2015 N.2, which suggests that novae are the main source of lithium in the galaxy.

Image: 

La misión ExoMars entra en órbita en torno a Marte

Resumen: 
El satélite para el estudio de Gases Traza (TGO) ha llevado a cabo satisfactoriamente el encendido del motor necesario para ser capturado por la gravedad marciana

La misión ExoMars, en la que participa el Instituto de Astrofísica de Andalucía (IAA-CSIC), ya se encuentra en órbita en torno a Marte. El encendido de inserción orbital del satélite para el estudio de Gases Traza (TGO) se produjo entre las 13:05 y las 15:24 GMT del 19 de octubre, y los equipos de la ESA continúan monitorizando el buen estado de este orbitador, el segundo tras Mars Express, que lleva trece años en funcionamiento.

Image: 

La 2 estrena el documental sobre UPWARDS, un proyecto para el estudio de Marte encabezado por el Instituto de Astrofísica de Andalucía

Title: 
Release of the documentary about UPWARDS, a project to study Mars led by the Institute of Astrophysics of Andalusia
Resumen: 
La emisión, que tendrá lugar hoy miércoles 19 de octubre a las 18h, coincide con la entrada en órbita en torno a Marte del módulo TGO y el "amartizaje" del módulo Schiaparelli, ambos de la misión ExoMars (ESA)

El proyecto UPWARDS, coordinado por el Instituto de Astrofísica de Andalucía (IAA-CSIC), cuenta con la participación de siete instituciones científicas europeas que desarrollarán nuevas técnicas de análisis para explotar la misión Mars Express y la futura ExoMars. Entre las actividades para dar a conocer el proyecto se encuentra el documental "Redescubriendo Marte: proyecto UPWARDS", que se emite hoy a las 18h en La 2 de Televisión Española.

Abstract: 
The documentary will be broadcasted today, coinciding with the arrival of the ExoMars mission (ESA) to Mars
Image: 

Instrumentación futura y proyectos legado del Observatorio de Calar Alto

Title: 
New Instrumentation and Legacy Projects for Calar Alto
Resumen: 
Esta semana se celebra en el IAA una reunión en la que se abrirá el debate sobre los futuros proyectos del Observatorio de Calar Alto

El Observatorio de Calar Alto constitute una referencia astronómica para la comunidad científica internacional gracias a la calidad de sus telescopios e instrumentación astronómica.

Abstract: 
A workshop to propose and debate the future projects and instruments of Calar Alto Observatory
Image: 

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