1,496,188 research outputs found
Serendipitous Science from the K2 Mission
The K2 mission is a repurposed use of the Kepler spacecraft to perform
high-precision photometry of selected fields in the ecliptic. We have developed
an aperture photometry pipeline for K2 data which performs dynamic automated
aperture mask selection, background estimation and subtraction, and positional
decorrelation to minimize the effects of spacecraft pointing jitter. We also
identify secondary targets in the K2 "postage stamps" and produce light curves
for those targets as well. Pipeline results will be made available to the
community. Here we describe our pipeline and the photometric precision we are
capable of achieving with K2, and illustrate its utility with asteroseismic
results from the serendipitous secondary targets.Comment: 6 pages, 9 figures To appear in IAU Focus Meeting 17, "Advances in
Stellar Physics from Asteroseismology", ed. Piero Benvenut
The Spitzer Warm Mission Science Prospects
After exhaustion of its cryogen, the Spitzer Space telescope will still have a fully functioning two-channel mid-IR camera that will have sensitivities better than any other ground or space-based telescopes until the launch of JWST. This document provides a description of the expected capabilities of Spitzer during its warm mission phase, and provides brief descriptions of several possible very large science programs that could be conducted. This information is intended to serve as input to a wide ranging discussion of the warm mission science, leading up to the Warm Mission Workshop in June 2007
Spitzer Warm Mission Workshop Introduction
The Spitzer Warm Mission Workshop was held June 4–5, 2007, to explore the science drivers for the warm Spitzer mission and help the Spitzer Science Center develop a new science operations philosophy. We must continue to maximize the science return with the reduced resources available, both using (a) the shortest two IRAC channels, and (b) archival research with the rich Spitzer archive. This paper summarizes the overview slides presented to the workshop participant
Design of the Spitzer Space Telescope Heritage Archive
It is predicted that Spitzer Space Telescope’s cryogen will run out in April 2009, and the final reprocessing for the cryogenic mission is scheduled to end in April 2011, at which time the Spitzer archive will be transferred to the NASA/IPAC Infrared Science Archive (IRSA) for long-term curation. The Spitzer Science Center (SSC) and IRSA are collaborating to design and deploy the Spitzer Heritage Archive (SHA), which will supersede the current Spitzer archive. It will initially contain the raw and final reprocessed cryogenic science products, and will eventually incorporate the final products from the Warm mission. The SHA will be accompanied by tools deemed necessary to extract the full science content of the archive and by comprehensive documentation
Overview of EXIST mission science and implementation
The Energetic X-ray Imaging Survey Telescope (EXIST) is designed to i) use
the birth of stellar mass black holes, as revealed by cosmic Gamma-Ray Bursts
(GRBs), as probes of the very first stars and galaxies to exist in the
Universe. Both their extreme luminosity (~104 times larger than the most
luminous quasars) and their hard X-ray detectability over the full sky with
wide-field imaging make them ideal "back-lights" to measure cosmic structure
with X-ray, optical and near-IR (nIR) spectra over many sight lines to high
redshift. The full-sky imaging detection and rapid followup narrow-field
imaging and spectroscopy allow two additional primary science objectives: ii)
novel surveys of supermassive black holes (SMBHs) accreting as very luminous
but rare quasars, which can trace the birth and growth of the first SMBHs as
well as quiescent SMBHs (non-accreting) which reveal their presence by X-ray
flares from the tidal disruption of passing field stars; and iii) a
multiwavelength Time Domain Astrophysics (TDA) survey to measure the temporal
variability and physics of a wide range of objects, from birth to death of
stars and from the thermal to non-thermal Universe. These science objectives
are achieved with the telescopes and mission as proposed for EXIST described
here.Comment: 19 pages, 13 figures, 6 tables. Invited talk at SPIE Conference
"Astronomical Telescopes and Instrumentation 2010"; to appear in Proceedings
SPIE (2010
Exploring the Edge of Our Solar System: IBEX Mission (Poster)
This poster outlines the major mission highlights of the Interstellar Boundary Explorer (IBEX) mission, a Small Explorer Earth-orbiting spacecraft that is designed to map the distant boundary between the solar wind from our Sun and the interstellar medium. This poster supports a full-length planetarium show about the IBEX mission and the boundary of the Solar System. Each short activity/product helps to build awareness and engagement in the science and engineering aspects of the mission that are reinforced as visitors choose to participate in more activities, including viewing the show and mission website.
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