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Cosmological Constraints from Galaxy Clusters in the 2500 Square-degree SPT-SZ Survey
Gladders, M. D.; Schrabback, T.; Rest, A. +74 more
We present cosmological parameter constraints obtained from galaxy clusters identified by their Sunyaev-Zel’dovich effect signature in the 2500 square-degree South Pole Telescope Sunyaev Zel’dovich (SPT-SZ) survey. We consider the 377 cluster candidates identified at z\gt 0.25 with a detection significance greater than five, corresponding to the 9…
The Third Fermi GBM Gamma-Ray Burst Catalog: The First Six Years
Collazzi, Andrew C.; Preece, Robert D.; Kouveliotou, Chryssa +30 more
Since its launch in 2008, the Fermi Gamma-ray Burst Monitor (GBM) has triggered and located on average approximately two γ-ray bursts (GRBs) every three days. Here, we present the third of a series of catalogs of GRBs detected by GBM, extending the second catalog by two more years through the middle of 2014 July. The resulting list includes 1405 t…
Planck 2015 results. XXVI. The Second Planck Catalogue of Compact Sources
Böhringer, H.; Kneissl, R.; Miville-Deschênes, M. -A. +240 more
The Second Planck Catalogue of Compact Sources is a list of discrete objects detected in single-frequency maps from the full duration of the Planck mission and supersedes previous versions. It consists of compact sources, both Galactic and extragalactic, detected over the entire sky. Compact sources detected in the lower frequency channels are ass…
Circumstellar debris and pollution at white dwarf stars
Farihi, J.
Circumstellar disks of planetary debris are now known or suspected to closely orbit hundreds of white dwarf stars. To date, both data and theory support disks that are entirely contained within the preceding giant stellar radii, and hence must have been produced during the white dwarf phase. This picture is strengthened by the signature of materia…
Where Stars Form: Inside-out Growth and Coherent Star Formation from HST Hα Maps of 3200 Galaxies across the Main Sequence at 0.7 < z < 1.5
van den Bosch, Frank C.; van Dokkum, Pieter G.; Franx, Marijn +18 more
We present Hα maps at 1 kpc spatial resolution for star-forming galaxies at z ∼ 1, made possible by the Wide Field Camera 3 grism on Hubble Space Telescope (HST). Employing this capability over all five 3D-HST/CANDELS fields provides a sample of 3200 galaxies enabling a division into subsamples based on stellar mass and star formation rate (SFR). …
The Optical-infrared Extinction Curve and Its Variation in the Milky Way
Peek, J. E. G.; Rix, H. -W.; Chambers, K. C. +19 more
The dust extinction curve is a critical component of many observational programs and an important diagnostic of the physics of the interstellar medium. Here we present new measurements of the dust extinction curve and its variation toward tens of thousands of stars, a hundred-fold larger sample than in existing detailed studies. We use data from t…
The MUSCLES Treasury Survey. II. Intrinsic LYα and Extreme Ultraviolet Spectra of K and M Dwarfs with Exoplanets*
Loyd, R. O. Parke; Redfield, Seth; Brown, Alexander +9 more
The ultraviolet (UV) spectral energy distributions (SEDs) of low-mass (K- and M-type) stars play a critical role in the heating and chemistry of exoplanet atmospheres, but are not observationally well-constrained. Direct observations of the intrinsic flux of the Lyα line (the dominant source of UV photons from low-mass stars) are challenging, as i…
The DRAGON simulations: globular cluster evolution with a million stars
Wang, Long; Berczik, Peter; Naab, Thorsten +6 more
Introducing the DRAGON simulation project, we present direct N-body simulations of four massive globular clusters (GCs) with 106 stars and 5 per cent primordial binaries at a high level of accuracy and realism. The GC evolution is computed with NBODY6++GPU and follows the dynamical and stellar evolution of individual stars and binaries,…
The z = 9-10 galaxy population in the Hubble Frontier Fields and CLASH surveys: the z = 9 luminosity function and further evidence for a smooth decline in ultraviolet luminosity density at z≥ 8
McLure, R. J.; Dunlop, J. S.; McLeod, D. J.
We present the results of a search for z = 9-10 galaxies within the first eight pointings of the Hubble Frontier Fields (HFF) survey and 20 cluster fields from the Cluster Lensing And Supernova survey with Hubble (CLASH) survey. Combined with our previous analysis of the Hubble Ultra Deep Field, we have now completed a search for z = 9-10 galaxies…
Quantifying Discordance in the 2015 Planck CMB Spectrum
Huang, Y.; Halpern, M.; Weiland, J. L. +4 more
We examine the internal consistency of the Planck 2015 cosmic microwave background (CMB) temperature anisotropy power spectrum. We show that tension exists between cosmological constant cold dark matter ({{Λ }}{CDM}) model parameters inferred from multipoles {\ell }\lt 1000 (roughly those accessible to Wilkinson Microwave Anisotropy Probe), and fr…