{ "articles": [ { "in_graph": false, "uuid": 6233624349245440, "title": "Satellites Show the Lack of Power In Puerto Rico as a Catastrophe Unfolds.", "url": "http://blogs.agu.org/wildwildscience/2017/09/26/satellites-show-lack-power-puerto-rico-catastrophe-unfolds/", "abstract": "The images and pleas for help coming from Puerto Rico are heartbreaking and increasingly alarming. Media reports this evening are saying that 80% of the island's crops have been destroyed. Only those with generators have power and mobile signals are sparse and intermittent. Up to 60% of people have no reliable access to clean water, and frankly, I can see no signs that much is being done about it! I ...", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://blogs.agu.org/wildwildscience/2017/09/26/satellites-show-lack-power-puerto-rico-catastrophe-unfolds/", "stored": "2017-09-26T04:09:01", "published": "2017-09-26T02:56:09", "type_of": "feed" }, { "in_graph": false, "uuid": 4858227644694528, "title": "PIA21964: NASA Damage Map Aids FEMA's Hurricane Maria Rescue Operation in Puerto Rico", "url": "http://photojournal.jpl.nasa.gov/catalog/PIA21964", "abstract": "Target: EarthMission: ARIA Image Credit: NASA/JPL-Caltech/ESA/Copernicus/Google", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://photojournal.jpl.nasa.gov/catalog/PIA21964", "stored": "2017-09-26T10:49:02", "published": "2017-09-26T00:32:22", "type_of": "feed" }, { "in_graph": false, "uuid": 6485896232697856, "title": "Vice President Pence Visits NASA's Marshall Space Flight Center", "url": "http://www.nasa.gov/press-release/vice-president-pence-visits-nasa-s-marshall-space-flight-center", "abstract": "Vice President Mike Pence offered his thanks Monday to employees working on NASA's human spaceflight programs during a tour of the agency's Marshall Space Flight Center in Huntsville, Alabama.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://www.nasa.gov/press-release/vice-president-pence-visits-nasa-s-marshall-space-flight-center", "stored": "2017-09-26T07:49:01", "published": "2017-09-26T00:02:00", "type_of": "feed" }, { "in_graph": false, "uuid": 6240437509554176, "title": "Long March 5 failure to postpone China's lunar exploration program", "url": "http://spacenews.com/long-march-5-failure-to-postpone-chinas-lunar-exploration-program/", "abstract": "The head of China's space program confirmed Sept. 25 that the July failure of the country's largest launch vehicle will lead to delays to upcoming lunar missions, including one to return samples.SpaceNews.com", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://spacenews.com/long-march-5-failure-to-postpone-chinas-lunar-exploration-program/", "stored": "2017-09-26T01:49:02", "published": "2017-09-25T21:07:42", "type_of": "feed" }, { "in_graph": false, "uuid": 6385630019846144, "title": "It takes 30 seconds for your fingerprint to grip your smartphone", "url": "https://www.newscientist.com/article/2148488/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&campaign_id=RSS%7CNSNS-", "abstract": "Fingerprints have to soften a bit before they can fully make contact with glass surfaces, which could foil plans for next-generation touchscreens", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=https://www.newscientist.com/article/2148488/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&campaign_id=RSS%7CNSNS-", "stored": "2017-09-25T23:49:01", "published": "2017-09-25T20:00:00", "type_of": "feed" }, { "in_graph": false, "uuid": 5973495359995904, "title": "Australia To Create Its Own Space Agency", "url": "https://www.universetoday.com/137297/australia-create-space-agency/", "abstract": "This year's International Astronautical Congress is being held in Adelaide, Australia and the opening ceremonies of this meeting of 'all things space' included a special announcement. The Australian government announced that it will establish a new national space agency, with the hopes of growing Australia's already vibrant space industry. Michaelia Cash, Australian's acting Minister of [...]The post Australia To Create Its Own Space Agency appeared first on Universe Today.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=https://www.universetoday.com/137297/australia-create-space-agency/", "stored": "2017-09-25T20:49:01", "published": "2017-09-25T19:25:11", "type_of": "feed" }, { "in_graph": false, "uuid": 5976462377091072, "title": "Rare Element Could Point the Way to Past Life on Mars", "url": "https://www.universetoday.com/137277/rare-element-point-way-past-life-mars/", "abstract": "A new study by an international team of scientists indicates how future missions to Mars should look for a rare element which could indicate that life once existed thereThe post Rare Element Could Point the Way to Past Life on Mars appeared first on Universe Today.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=https://www.universetoday.com/137277/rare-element-point-way-past-life-mars/", "stored": "2017-09-25T20:49:01", "published": "2017-09-25T18:56:40", "type_of": "feed" }, { "in_graph": false, "uuid": 6245178683686912, "title": "Review: 'Discovery' is a bold, new addition to the Star Trek franchise", "url": "http://www.planetary.org/blogs/jason-davis/2017/20170925-star-trek-discovery-review.html", "abstract": "In a review of Star Trek: Discovery, Jason Davis says he expected Discovery to be a cross between Enterprise and the new reboot movies. Instead, the show turned out to be something else entirely.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://www.planetary.org/blogs/jason-davis/2017/20170925-star-trek-discovery-review.html", "stored": "2017-09-25T21:49:00", "published": "2017-09-25T18:15:21", "type_of": "feed" }, { "in_graph": false, "uuid": 5193941079031808, "title": "NASA Armstrong Hosted Educator Professional Development Workshop", "url": "http://www.nasa.gov/centers/armstrong/features/murep_workshop.html", "abstract": "Future educators launched model rockets, built replica satellites and toured NASA facilities at an educator professional development workshop held July 17 through July 21 by NASA Armstrong Flight Research Center's Education Office in California.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://www.nasa.gov/centers/armstrong/features/murep_workshop.html", "stored": "2017-09-26T11:29:00", "published": "2017-09-25T17:50:00", "type_of": "feed" }, { "in_graph": false, "uuid": 5737789366730752, "title": "Astronauts Research Adapting to Space and Plan for Spacewalks", "url": "https://blogs.nasa.gov/spacestation/2017/09/25/astronauts-research-adapting-to-space-and-plan-for-spacewalks/", "abstract": "The Expedition 53 crew members continued testing a new exercise device today while also exploring how their bodies are adapting to living in space. The station residents are also gearing up for three spacewalks planned in October. Commander Randy Bresnik joined Paolo Nespoli for a workout session on the new Miniature Exercise Device-2 (MED-2). The duo tested the MED-2 for its ability to provide motion and resistance during crew workouts. The device is significantly smaller than previous space exercise systems potentially providing more room on future spacecraft. Flight Engineer Mark Vande Hei installed new lights on his crew quarters to test their ability to improve circadian rhythms, sleep, and cognitive performance. NASA astronaut Joe Acaba collected and stowed his blood and urine samples for a pair of experiments observing the physiological changes taking place in space. Bresnik and Vande Hei are moving ahead with preparations for the first of three spacewalks set to begin Oct. 5. The spacewalkers inspected the tethers that will keep them attached to the station and began setting up their tools. The duo will remove and replace a leading end effector on the tip of the Canadarm2 during the first spacewalk scheduled to last about 6.5 hours.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=https://blogs.nasa.gov/spacestation/2017/09/25/astronauts-research-adapting-to-space-and-plan-for-spacewalks/", "stored": "2017-09-26T08:29:01", "published": "2017-09-25T17:28:58", "type_of": "feed" }, { "in_graph": false, "uuid": 6276233109176320, "title": "The Mars 2020 Rover features new spectral abilities with its new SuperCam", "url": "https://phys.org/news/2017-09-mars-rover-features-spectral-abilities.html", "abstract": "As the NASA Curiosity rover roams the surface of Mars, its ChemCam captures the chemical makeup of its surroundings with a specially designed laser system. It is the most powerful laser to operate on the surface of another planet. The burst of infrared light it fires lasts only a few billionths of seconds, but it is powerful enough to vaporize the spot it hits at more than 8,000degC. Even from a distance, the ChemCam can examines rocks and soil using a process called Laser Induced Breakdown Spectroscopy (LIBS), where laser bursts atomize and excite components and spectral images capture their chemical signatures.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=https://phys.org/news/2017-09-mars-rover-features-spectral-abilities.html", "stored": "2017-09-25T22:29:02", "published": "2017-09-25T17:20:51", "type_of": "feed" }, { "in_graph": false, "uuid": 5150333202333696, "title": "Molecular abundances and C/O ratios in chemically evolving planet-forming disk midplanes. (arXiv:1709.07863v1 [astro-ph.EP])", "url": "http://arxiv.org/abs/1709.07863", "abstract": "(Abridged) Exoplanet atmospheres are thought be built up from accretion ofgas as well as pebbles and planetesimals in the midplanes of planet-formingdisks. The chemical composition of this material is usually assumed to beunchanged during the disk lifetime. However, chemistry can alter the relativeabundances of molecules in this planet-building material. To assess the impactof disk chemistry during the era of planet formation, an extensive kineticchemistry gas-grain reaction network is utilised to evolve the abundances ofchemical species over time. Given a high level of ionisation, chemicalevolution in protoplanetary disk midplanes becomes significant after a fewtimes $10^{5}$ yrs, and is still ongoing by 7 Myr between the H$_{2}$O and theO$_{2}$ icelines. Importantly, the changes in the abundances of the majorelemental carbon and oxygen-bearing molecules imply that the traditional\"stepfunction\" for the C/O ratios in gas and ice in the disk midplane (asdefined by sharp changes at icelines of H$_{2}$O, CO$_{2}$ and CO) evolves overtime, and cannot be assumed fixed. In addition, at lower temperatures (< 29 K),gaseous CO colliding with the grains gets converted into CO$_{2}$ and othermore complex ices, lowering the CO gas abundance between the O$_{2}$ and COthermal icelines. This effect can mimic a CO iceline at a higher temperaturethan suggested by its binding energy. Chemistry in the disk midplane isionisation-driven, and evolves over time. In order to reliably predict theatmospheric compositions of forming planets, as well as to relate observedatmospheric C/O ratios of exoplanets to where and how the atmospheres haveformed in a disk midplane, chemical evolution needs to be considered andimplemented into planet formation models.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://arxiv.org/abs/1709.07863", "stored": "2017-09-25T17:09:13", "published": "2017-09-25T17:09:13", "type_of": "feed" }, { "in_graph": false, "uuid": 5200478354800640, "title": "Detectability of 21$\\,$cm-signal during the Epoch of Reionization with 21$\\,$cm-LAE cross-correlation. II. Foreground contamination. (arXiv:1709.04168v2 [astro-ph.CO] UPDATED)", "url": "http://arxiv.org/abs/1709.04168", "abstract": "Cross-correlation between the redshifted 21$\\,$cm signal and Lyman-alphaemitting galaxies (LAEs) is powerful tool to probe the Epoch of Reionization(EoR). Although the cross-power spectrum (PS) has an advantage of notcorrelating with foregrounds much brighter than the 21$\\,$cm signal, thegalactic and extra-galactic foregrounds prevent detection since they contributeto the variance of the cross PS. Therefore, strategies for mitigatingforegrounds are required. In this work, we study the impact of foregroundavoidance on the measurement of the 21$\\,$cm-LAE cross-correlation. We thensimulate the 21$\\,$cm observation as observed by the Murchison Widefield Array(MWA). The point source foreground is modelled from the GaLactic andExtragalactic All-sky Murchison Widefield Array (GLEAM) survey catalogue, andthe diffuse foreground is evaluated using a parametric model. For LAEobservations, we assume a large survey of the Subaru Hyper Supreme-Cam (HSC),with spectroscopic observations of the Prime Focus Spectrograph (PFS). Topredict the 21$\\,$cm signal, we employ a numerical simulation combining postprocessed radiative transfer and radiation hydrodynamics. Using these models,the signal-to-noise ratio of 2D PS shows the foreground contamination dominatesthe error of cross-PS at large scales even in the so-called `EoR window'. Wefind that at least 95% of the point source foreground and 80% of the galacticdiffuse foreground must be removed to measure the EoR signal at large scales$k<0.2 \\rm h\\,Mpc^{-1}$. Additionally, a sensitivity 16 times larger than thatof the MWA operating with 128 tiles and 90% of the point source foregroundremoval are required for a detection at small scales.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://arxiv.org/abs/1709.04168", "stored": "2017-09-25T17:09:13", "published": "2017-09-25T17:09:13", "type_of": "feed" }, { "in_graph": false, "uuid": 5259730113003520, "title": "Caustic Skeleton & Cosmic Web. (arXiv:1703.09598v2 [astro-ph.CO] UPDATED)", "url": "http://arxiv.org/abs/1703.09598", "abstract": "We present a general formalism for identifying the caustic structure of anevolving mass distribution in an arbitrary dimensional space. For the class ofHamiltonian fluids the identification corresponds to the classification ofsingularities in Lagrangian catastrophe theory. Based on this we develop atheoretical framework for the formation of the cosmic web, and specificallythose aspects that characterize its unique nature: its complex topologicalconnectivity and multiscale spinal structure of sheetlike membranes, elongatedfilaments and compact cluster nodes. The present work represents an extensionof the work by Arnol'd et al., who classified the caustics for the 1- and2-dimensional Zel'dovich approximation. His seminal work established the roleof emerging singularities in the formation of nonlinear structures in theuniverse. At the transition from the linear to nonlinear structure evolution,the first complex features emerge at locations where different fluid elementscross to establish multistream regions. The classification and characterizationof these mass element foldings can be encapsulated in caustic conditions on theeigenvalue and eigenvector fields of the deformation tensor field. We introducean alternative and transparent proof for Lagrangian catastrophe theory, andderive the caustic conditions for general Lagrangian fluids, with arbitrarydynamics, including dissipative terms and vorticity. The new proof allows us todescribe the full 3-dimensional complexity of the gravitationally evolvingcosmic matter field. One of our key findings is the significance of theeigenvector field of the deformation field for outlining the spatial structureof the caustic skeleton. We consider the caustic conditions for the3-dimensional Zel'dovich approximation, extending earlier work on those for 1-and 2-dimensional fluids towards the full spatial richness of the cosmic web.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://arxiv.org/abs/1703.09598", "stored": "2017-09-25T17:09:13", "published": "2017-09-25T17:09:13", "type_of": "feed" }, { "in_graph": false, "uuid": 5428476089729024, "title": "$\\mathcal O(10) M_\\odot$ primordial black holes and string axion dark matter. (arXiv:1709.07865v1 [astro-ph.CO])", "url": "http://arxiv.org/abs/1709.07865", "abstract": "LIGO-Virgo collaboration has found black holes as heavy as $M \\sim 30M_\\odot$through the detections of the gravitational waves emitted during their mergers.Primordial black holes (PBHs) produced by inflation could be an origin of suchevents. While it is tempting to presume that these PBHs constitute all DarkMatter (DM), there exists a number of constraints for PBHs with $\\mathcal{O}(10) M_\\odot$ which contradict with the idea of PBHs as all DM. Also, it isknown that weakly interacting massive particle (WIMP) that is a common DMcandidate is almost impossible to coexist with PBHs. These observationsmotivate us to pursue another candidate of DM. In this paper, we assume thatthe string axion solving the strong CP problem makes up all DM, and discuss thecoexistence of string axion DM and inflationary PBHs for LIGO events.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://arxiv.org/abs/1709.07865", "stored": "2017-09-25T17:09:13", "published": "2017-09-25T17:09:13", "type_of": "feed" }, { "in_graph": false, "uuid": 5674078694277120, "title": "Cosmic Mass Spectrometer. (arXiv:1707.05408v2 [astro-ph.HE] UPDATED)", "url": "http://arxiv.org/abs/1707.05408", "abstract": "We argue that if ultrahigh-energy (E > 10^10 GeV) cosmic rays are heavynuclei (as indicated by existing data), then the pointing of cosmic rays totheir nearest extragalactic sources at highest energies is expected. This isbecause the bending of the cosmic ray decreases as 1/E, so that pointing tonearby sources becomes possible at highest energies. In addition, for a nucleusof charge Ze and baryon number A, the maximum energy of acceleration capabilityof the sources grows linearly in Z, while the energy loss per distance traveleddecreases with increasing A. Each of these two points tend to favor heavynuclei at the highest energies. The traditional bi-dimensional analyses, whichsimultaneously reproduce Auger data on the spectrum and nuclear composition,may not be capable of incorporating the relative importance of these phenomena.In this paper we propose a multi-dimensional reconstruction of the individualemission spectra (in E, direction, and cross-correlation with nearby putativesources) to study the hypothesis that primaries are heavy nuclei subject to GZKphoto-disintegration, and to determine the nature of the extragalactic sources.More specifically, we propose to combine information on nuclear composition andarrival direction to associate a potential clustering of events with a3-dimensional position in the sky. Actually, both the source distance andmaximum emission energy can be obtained through a multi-parameter likelihoodanalysis to accommodate the observed nuclear composition of each individualevent in the cluster. We show that one can track the level of GZK interactionson an statistical basis by comparing the maximum energy at the source of eachcluster. We also show that metal-rich starburst galaxies are highly-plausiblecandidate sources, and we use them as an explicit example of our proposedmulti-dimensional analysis.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://arxiv.org/abs/1707.05408", "stored": "2017-09-25T17:09:13", "published": "2017-09-25T17:09:13", "type_of": "feed" }, { "in_graph": false, "uuid": 6254970336706560, "title": "Perspectives of direct Detection of supersymmetric Dark Matter in the NMSSM. (arXiv:1703.01255v2 [hep-ph] UPDATED)", "url": "http://arxiv.org/abs/1703.01255", "abstract": "In the Next-to-Minimal-Supersymmetric-Standard-Model (NMSSM) the lightestsupersymmetric particle (LSP) is a candidate for the dark matter (DM) in theuniverse. It is a mixture from the various gauginos and Higgsinos and can bebino-, Higgsino- or singlino-dominated. Singlino-dominated LSPs can have verylow cross sections below the neutrino background from coherent neutrinoscattering which is limiting the sensitivity of future direct DM searchexperiments. However, previous studies suggested that the combination of both,the spin-dependent (SD) and spin-independent (SI) searches are sensitive incomplementary regions of parameter space, so considering both searches willallow to explore practically the whole parameter space of the NMSSM. In thisletter, the different scenarios are investigated with a new scanning technique,which reveals that significant regions of the NMSSM parameter space cannot beexplored, even if one considers both, SI and SD, searches.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://arxiv.org/abs/1703.01255", "stored": "2017-09-25T17:09:13", "published": "2017-09-25T17:09:13", "type_of": "feed" }, { "in_graph": false, "uuid": 5089315675701248, "title": "Spin Precession Experiments for Light Axionic Dark Matter. (arXiv:1709.07852v1 [hep-ph])", "url": "http://arxiv.org/abs/1709.07852", "abstract": "Axion-like particles are promising candidates to make up the dark matter ofthe universe, but it is challenging to design experiments that can detect themover their entire allowed mass range. Dark matter in general, and in particularaxion-like particles and hidden photons, can be as light as roughly $10^{-22}\\;\\rm{eV}$ ($\\sim 10^{-8} \\;\\rm{Hz}$), with astrophysical anomalies providingmotivation for the lightest masses (\"fuzzy dark matter\"). We proposeexperimental techniques for direct detection of axion-like dark matter in themass range from roughly $10^{-13} \\;\\rm{eV}$ ($\\sim 10^2 \\;\\rm{Hz}$) down tothe lowest possible masses. In this range, these axion-like particles act as atime-oscillating magnetic field coupling only to spin, inducing effects such asa time-oscillating torque and periodic variations in the spin-precessionfrequency with the frequency and direction set by fundamental physics. We showhow these signals can be measured using existing experimental technology,including torsion pendulums, atomic magnetometers, and atom interferometry.These experiments demonstrate a strong discovery capability, with futureiterations of these experiments capable of pushing several orders of magnitudepast current astrophysical bounds.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://arxiv.org/abs/1709.07852", "stored": "2017-09-25T17:09:12", "published": "2017-09-25T17:09:12", "type_of": "feed" }, { "in_graph": false, "uuid": 5107724442402816, "title": "VERITAS contributions to the 35th International Cosmic Ray Conference. (arXiv:1709.07843v1 [astro-ph.HE])", "url": "http://arxiv.org/abs/1709.07843", "abstract": "Compilation of papers presented by the VERITAS Collaboration at the 35thInternational Cosmic Ray Conference (ICRC), held July 12 through July 20, 2017in Busan, South Korea.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://arxiv.org/abs/1709.07843", "stored": "2017-09-25T17:09:12", "published": "2017-09-25T17:09:12", "type_of": "feed" }, { "in_graph": false, "uuid": 5658039944216576, "title": "Relativistic asymmetries in the galaxy cross-correlation function. (arXiv:1709.07854v1 [astro-ph.CO])", "url": "http://arxiv.org/abs/1709.07854", "abstract": "We study the asymmetry in the two-point cross-correlation function of twopopulations of galaxies focusing in particular on the relativistic effects thatinclude the gravitational redshift. We derive the cross-correlation function onsmall and large scales using two different approaches: General Relativistic andNewtonian perturbation theory. Following recent work by Bonvin et al.,Gaztanaga et al. and Croft, we calculate the dipole and the shell estimatorwith the two procedures and we compare our results. We find that while GeneralRelativistic Perturbation Theory (GRPT) is able to make predictions ofrelativistic effects on very large, obviously linear scales (r > 50 Mpc/h), thepresence of non-linearities physically occurring on much smaller scales (downto those describing galactic potential wells) can strongly affect the asymmetryestimators. These can lead to cancellations of the relativistic terms, and signchanges in the estimators on scales up to r ~ 50 Mpc/h. On the other hand, withan appropriate non-linear gravitational potential, the results obtained usingNewtonian theory can successfully describe the asymmetry on smaller, non-linearscales (r < 20 Mpc/h) where gravitational redshift is the dominant term. Onlarger scales the asymmetry is much smaller in magnitude, and measurement isnot within reach of current observations. This is in agreement with theobservational results obtained by Gaztnaga et al. and the first detection ofrelativistic effects (on (r < 20 Mpc/h) scales) by Alam et al.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://arxiv.org/abs/1709.07854", "stored": "2017-09-25T17:09:12", "published": "2017-09-25T17:09:12", "type_of": "feed" }, { "in_graph": false, "uuid": 5733047253073920, "title": "Relativistic distortions in the large-scale clustering of SDSS-III BOSS CMASS galaxies. (arXiv:1709.07855v1 [astro-ph.CO])", "url": "http://arxiv.org/abs/1709.07855", "abstract": "General relativistic effects have long been predicted to subtly influence theobserved large-scale structure of the universe. The current generation ofgalaxy redshift surveys have reached a size where detection of such effects isbecoming feasible. In this paper, we report the first detection of the redshiftasymmetry from the cross-correlation function of two galaxy populations whichis consistent with relativistic effects. The dataset is taken from the SloanDigital Sky Survey DR12 CMASS galaxy sample, and we detect the asymmetry at the$2.7\\sigma$ level by applying a shell-averaged estimator to thecross-correlation function. Our measurement dominates at scales around $10$h$^{-1}$Mpc, larger than those over which the gravitational redshift profilehas been recently measured in galaxy clusters, but smaller than scales forwhich linear perturbation theory is likely to be accurate. The detectionsignificance varies by 0.5$\\sigma$ with the details of our measurement andtests for systematic effects. We have also devised two null tests to check forvarious survey systematics and show that both results are consistent with thenull hypothesis. We measure the dipole moment of the cross-correlationfunction, and from this the asymmetry is also detected, at the $2.8 \\sigma$level. The amplitude and scale-dependence of the clustering asymmetries areapproximately consistent with the expectations of General Relativity and abiased galaxy population, within large uncertainties. We explore theoreticalpredictions using numerical simulations in a companion paper.", "keywords_url": "http://semantics.projectchronos.eu/keywords/filterby?url=http://arxiv.org/abs/1709.07855", "stored": "2017-09-25T17:09:12", "published": "2017-09-25T17:09:12", "type_of": "feed" }, { "in_graph": false, "uuid": 6201490746114048, "title": "Higgs inflation with loop corrections in the Palatini formulation. (arXiv:1709.07853v1 [astro-ph.CO])", "url": "http://arxiv.org/abs/1709.07853", "abstract": "We compare Higgs inflation in the metric and Palatini formulations of generalrelativity, with loop corrections are treated in a simple approximation. Weconsider Higgs inflation on the plateau, at a critical point, at a hilltop andin a false vacuum. In the last case there are only minor differences. Otherwisewe find that in the Palatini formulation the tensor-to-scalar ratio isconsistently suppressed, spanning the range \$1\\times10^{-13}