output
19912026
Showing 2012Show all

501 papers · 1 filter

astro-ph.EP2012★ 137 cited

Characterizing the Cool KOIs IV: Kepler-32 as a prototype for the formation of compact planetary systems throughout the Galaxy

Jonathan J. Swift, John Asher Johnson, Timothy D. Morton +4

The Kepler space telescope has opened new vistas in exoplanet discovery space by revealing populations of Earth-sized planets that provide a new context for understanding planet fo…

astro-ph.HE2012★ 46 cited

PSR J0357+3205: the tail of the turtle

Martino Marelli, Andrea De Luca, David Salvetti +6

Using a new XMM-Newton observation, we have characterized the X-ray properties of the middle-aged radio-quiet gamma-ray pulsar J0357+3205 (named Morla) and its tail. The X-ray emis…

astro-ph.HE2012★ 28 cited

PSR J0357+3205: a fast moving pulsar with a very unusual X-ray trail

A. De Luca, R. P. Mignani, M. Marelli +6

The middle-aged PSR J0357+3205 is a nearby, radio-quiet, bright gamma-ray pulsar discovered by the Fermi mission. Our previous Chandra observation revealed a huge, very peculiar st…

hep-ex2012★ 36 cited

Multi-channel search for squarks and gluinos in sqrt(s)=7 TeV pp collisions with the ATLAS detector

ATLAS Collaboration

A search for supersymmetric particles in final states with zero, one, and two leptons, with and without jets identified as originating from b-quarks, in 4.7 fb-1 of sqrt(s)=7 TeV p…

astro-ph.HE2012★ 44 cited

Discovery of TeV Gamma-ray Emission from CTA 1 by VERITAS

E. Aliu, S. Archambault, T. Arlen +88

We report the discovery of TeV gamma-ray emission coincident with the shell-type radio supernova remnant (SNR) CTA 1 using the VERITAS gamma-ray observatory. The source, VER J0006+…

astro-ph.SR2012★ 26 cited

Low Mach Number Modeling of Convection in Helium Shells on Sub-Chandrasekhar White Dwarfs. I. Methodology

M. Zingale, A. Nonaka, A. S. Almgren +3

We assess the robustness of a low Mach number hydrodynamics algorithm for modeling helium shell convection on the surface of a white dwarf in the context of the sub-Chandrasekhar m…

astro-ph.EP2012★ 73 cited

Signals embedded in the radial velocity noise. Periodic variations in the tau Ceti velocities

Mikko Tuomi, Hugh R. A. Jones, James S. Jenkins +12

The abilities of radial velocity exoplanet surveys to detect the lowest-mass extra-solar planets are currently limited by a combination of instrument precision, lack of data, and "…

astro-ph.EP2012★ 64 cited

A lower radius and mass for the transiting extrasolar planet HAT-P-8b

L. Mancini, J. Southworth, S. Ciceri +10

Context. The extrasolar planet HAT-P-8 b was thought to be one of the more inflated transiting hot Jupiters. Aims. By using new and existing photometric data, we computed precise e…

astro-ph.CO2012★ 58 cited

Testing Diagnostics of Nuclear Activity and Star Formation in Galaxies at z>1

Jonathan R. Trump, Nicholas P. Konidaris, Guillermo Barro +9

We present some of the first science data with the new Keck/MOSFIRE instrument to test the effectiveness of different AGN/SF diagnostics at z~1.5. MOSFIRE spectra were obtained in…

math.DS2012★ 7 cited

Keplerian Dynamics on the Heisenberg Group and Elsewhere

Richard Montgomery, Corey Shanbrom

Posing Kepler's problem of motion around a fixed "sun" requires the geometric mechanician to choose a metric and a Laplacian. The metric provides the kinetic energy. The fundamenta…

astro-ph.EP2012★ 119 cited

On The Relative Sizes of Planets Within Kepler Multiple Candidate Systems

David R. Ciardi, Daniel C. Fabrycky, Eric B. Ford +5

We present a study of the relative sizes of planets within the multiple candidate systems discovered with the mission. We have compared the size of each planet to the size…

astro-ph.SR2012★ 83 cited

A Comparison of Near-Infrared Photometry and Spectra for Y Dwarfs with a New Generation of Cool Cloudy Models

S. K. Leggett, Caroline V. Morley, M. S. Marley +3

We present YJHK photometry, or a subset, for the six Y dwarfs discovered in WISE data by Cushing et al.. The data were obtained using NIRI on the Gemini North telescope. We also pr…

math.DG2012★ 98 cited

A note on static spaces and related problems

Jie Qing, Wei Yuan

We solve the classifying problem raised by Fischer and Marsden for Bach flat static spaces. We also prove the conjecture about critical point equations proposed by Besse for Bach f…

astro-ph.CO2012★ 26 cited

Multi-Wavelength Study of a Complete IRAC 3.6micron-Selected Galaxy Sample: a Fair Census of Red and Blue Populations at Redshifts 0.4-1

J. -S. Huang, S. M. Faber, C. N. A. Willmer +14

We present a multi-wavelength study of a 3.6 m-selected galaxy sample in the Extended Groth strip. The sample is complete for galaxies with stellar mass \Msun and re…

astro-ph.HE2012★ 9 cited

Chandra Observations of the Collisional Ring Galaxy NGC 922

A. H. Prestwich, J. L. Galache. T. Linden, V. Kalogara +5

In this paper we report on Chandra observations of the starburst galaxy NGC 922. NGC 922 is a drop-through ring galaxy with an expanding ring of star formation, similar in many res…

astro-ph.HE2012★ 99 cited

Multiwavelength observations of GRB 110731A: GeV emission from onset to afterglow

LAT Collaboration, GBM Collaboration, Swift Collaboration +2

We report on the multiwavelength observations of the bright, long gamma-ray burst \GRB, by the \Fermi and \Swift observatories, and by the MOA and GROND optical telescopes. The ana…

astro-ph.CO2012★ 371 cited

The COS-Halos Survey: An Empirical Description of the Metal-Line Absorption in the Low-Redshift Circumgalactic Medium

Jessica Werk, J. Xavier Prochaska, Christopher Thom +4

We present the equivalent width and column density measurements for low and intermediate ionization states of the circumgalactic medium (CGM) surrounding 44 low-z, L ~ L* galaxies…

astro-ph.CO2012★ 39 cited

A Census of Broad-Line Active Galactic Nuclei in Nearby Galaxies: Coeval Star Formation and Rapid Black Hole Growth

Jonathan R. Trump, Alexander D. Hsu, Jerome J. Fang +3

We present the first quantified, statistical map of broad-line active galactic nucleus (AGN) frequency with host galaxy color and stellar mass in nearby (0.01 < z < 0.11) galaxies.…

astro-ph.EP2012★ 40 cited

MOST Space Telescope Photometry of the 2010 January Transit of Extrasolar Planet HD80606b

Jessica E. Roberts, Jason W. Barnes, Jason F. Rowe +1

We present observations of the full January 2010 transit of HD80606b from the Canadian microsatellite, Microvariability and Oscillations of Stars (MOST). By employing a space-based…

hep-ph2012★ 20 cited

Higgs Production in Neutralino Decays in the MSSM - The LHC and a Future e+e- Collider

Alexandre Arbey, Marco Battaglia, Farvah Mahmoudi

The search for the production of weakly-interacting SUSY particles at the LHC is crucial for testing supersymmetry in relation to dark matter. Decays of neutralinos into Higgs boso…

astro-ph.CO2012★ 6 cited

Testing the dark matter origin of the WMAP-Planck Haze with radio observations of Spiral Galaxies

Eric Carlson, Dan Hooper, Tim Linden +1

If the Galactic WMAP radio haze, as recently confirmed by Planck, is produced by dark matter annihilation or decay, similar diffuse radio halos should exist around other galaxies w…

hep-ex2012★ 21 cited

A search for prompt lepton-jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

ATLAS Collaboration

We present a search for a light (mass < 2 GeV) boson predicted by Hidden Valley supersymmetric models that decays into a final state consisting of collimated muons or electrons, de…

hep-ex2012★ 557 cited

Observation of Associated Near-side and Away-side Long-range Correlations in sqrt(s_NN)=5.02 TeV Proton-lead Collisions with the ATLAS Detector

ATLAS Collaboration

Two-particle correlations in relative azimuthal angle (Delta-phi) and pseudorapidity (Delta-eta) are measured in sqrt(s_NN) = 5.02 TeV p+Pb collisions using the ATLAS detector at t…

hep-ph2012★ 55 cited

Supersymmetry confronts Bs -> mu+mu-: Present and future status

A. Arbey, M. Battaglia, F. Mahmoudi +1

The purely leptonic rare decay Bs -> mu+mu- is very sensitive to supersymmetric contributions which are free from the helicity suppression of its Standard Model diagrams. The recen…