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Disentangling planetary and stellar activity features in the CoRoT-2 light curve
Deleuil, M.; Meunier, N.; Lanza, A. F. +7 more
Aims: Stellar activity is an important source of systematic errors and uncertainties in the characterization of exoplanets. Most of the techniques used to correct for this activity focus on an ad hoc data reduction.
Methods: We have developed a software for the combined fit of transits and stellar activity features in high-precision long…
A NuSTAR Observation of the Gamma-ray-emitting X-ray Binary and Transitional Millisecond Pulsar Candidate 1RXS J154439.4-112820
Bogdanov, Slavko
I present a 40 ks Nuclear Spectroscopic Telescope Array observation of the recently identified low-luminosity X-ray binary and transitional millisecond pulsar (tMSP) candidate 1RXS J154439.4-112820, which is associated with the high-energy γ-ray source 3FGL J1544.6-1125. The system is detected up to ∼30 keV with an extension of the same power-law …
The daily processing of asteroid observations by Gaia
Muinonen, Karri; Fedorets, Grigori; Pentikäinen, Hanna +15 more
The Gaia mission started its regular observing program in the summer of 2014, and since then it is regularly obtaining observations of asteroids. This paper draws the outline of the data processing for Solar System objects, and in particular on the daily ;short-term; processing, from the on-board data acquisition to the ground-based processing. We…
Pixel Color Magnitude Diagrams for Semi-resolved Stellar Populations: The Star Formation History of Regions within the Disk and Bulge of M31
van Dokkum, Pieter G.; Conroy, Charlie
The analysis of stellar populations has, by and large, been developed for two limiting cases: spatially resolved stellar populations in the color-magnitude diagram, and integrated light observations of distant systems. In between these two extremes lies the semi-resolved regime, which encompasses a rich and relatively unexplored realm of observati…
Moreton and EUV Waves Associated with an X1.0 Flare and CME Ejection
Long, David M.; Mandrini, Cristina H.; Cremades, Hebe +3 more
A Moreton wave was detected in active region (AR) 12017 on 29 March 2014 with very high cadence with the H-Alpha Solar Telescope for Argentina (HASTA) in association with an X1.0 flare (SOL2014-03-29T17:48). Several other phenomena took place in connection with this event, such as low-coronal waves and a coronal mass ejection (CME). We analyze the…
The Inner Structure of the TW Hya Disk as Revealed in Scattered Light
Debes, John H.; Schneider, Glenn; Jang-Condell, Hannah
We observe a significant change in the TW Hya disk interior to 40 au via archival unpolarized multi-wavelength Hubble Space Telescope/STIS and NICMOS images with an inner working angle of 0.″4 (22 au). Our images show the outer edge of a clearing at every wavelength with similar behavior, demonstrating that the feature is structural, rather than d…
Push it to the limit: Local Group constraints on high-redshift stellar mass functions for M⋆ ≥ 105 M⊙
Weisz, Daniel R.; Bullock, James S.; Boylan-Kolchin, Michael +1 more
We constrain the evolution of the galaxy stellar mass function from 2 < z < 5 for galaxies with stellar masses as low as 105 M⊙ by combining star formation histories of Milky Way satellite galaxies derived from deep Hubble Space Telescope observations with merger trees from the ELVIS suite of N-body simulations. This ap…
Using XMM-Newton to study the energy-dependent variability of H 1743-322 during its 2014 outburst
Stiele, H.; Yu, W.
Black hole transients evolve during bright outbursts, showing distinct changes in their spectral and variability properties. These changes are interpreted as evidence for changes in the accretion flow and in the X-ray-emitting regions. We obtained an anticipated XMM-Newton Target of Opportunity observation of H 1743-322 during its outburst in 2014…
Orion's Veil. IV. H2 Excitation and Geometry
Abel, N. P.; O'Dell, C. R.; Ferland, G. J. +1 more
The foreground Veil of material that lies in front of the Orion Nebula is the best studied sample of the interstellar medium because we know where it is located, how it is illuminated, and the balance of thermal and magnetic energy. In this work, we present high-resolution STIS observations toward the Trapezium, with the goal of better understandi…
Automated localisation of Mars rovers using co-registered HiRISE-CTX-HRSC orthorectified images and wide baseline Navcam orthorectified mosaics
Tao, Yu; Muller, Jan-Peter; Poole, William
We present a wide range of research results in the area of orbit-to-orbit and orbit-to-ground data fusion, achieved within the EU-FP7 PRoVisG project and EU-FP7 PRoViDE project. We focus on examples from three Mars rover missions, i.e. MER-A/B and MSL, to provide examples of a new fully automated offline method for rover localisation. We start by …