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19922026
most citedThe Sloan Digital Sky Survey: Technical Summary

10.4k citations

Showing 2014Show all

144 papers · 1 filter

astro-ph.SR2014★ 3 cited

The Clusters AgeS Experiment (CASE). Variable stars in the field of the globular cluster NGC 6362

J. Kaluzny, I. B. Thompson, M. Rozyczka +2

The field of the globular cluster NGC 6362 was monitored between 1995 and 2009 in a search for variable stars. BV light curves were obtained for 69 periodic variables including 34…

astro-ph.SR2014★ 55 cited

AGB Sodium Abundances in the Globular Cluster 47 Tucanae (NGC 104)

Christian I. Johnson, Iain McDonald, Catherine A. Pilachowski +8

A recent analysis comparing the [Na/Fe] distributions of red giant branch (RGB) and asymptotic giant branch (AGB) stars in the Galactic globular cluster NGC 6752 found that the rat…

astro-ph.SR2014★ 71 cited

WISEP J004701.06+680352.1: An intermediate surface gravity, dusty brown dwarf in the AB Dor Moving Group

John E. Gizis, Katelyn N. Allers, Michael C. Liu +4

We present spectroscopy, astrometry, and photometry of the brown dwarf WISEP J004701.06+680352.1 (W0047+68), an unusually red field L dwarf at a distance of parsecs.…

astro-ph.GA2014★ 1.7k cited

Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory

Kevin Bundy, Matthew A. Bershady, David R. Law +65

We present an overview of a new integral field spectroscopic survey called MaNGA (Mapping Nearby Galaxies at Apache Point Observatory), one of three core programs in the fourth-gen…

astro-ph.HE2014★ 147 cited

Correlation between the photon index and X-ray luminosity of black hole X-ray binaries and active galactic nuclei: observations and interpretation

Qi-Xiang Yang, Fu-Guo Xie, Feng Yuan +4

We investigate the observed correlation between the 2--10 keV X-ray luminosity (in unit of the Eddington luminosity; ) and the photon index () of the X-r…

astro-ph.EP2014★ 38 cited

Exo-zodi modelling for the Large Binocular Telescope Interferometer

Grant M. Kennedy, Mark C. Wyatt, Vanessa Bailey +18

Habitable zone dust levels are a key unknown that must be understood to ensure the success of future space missions to image Earth analogues around nearby stars. Current detection…

astro-ph.HE2014★ 280 cited

A real-time fast radio burst: polarization detection and multiwavelength follow-up

E. Petroff, M. Bailes, E. D. Barr +32

Fast radio bursts (FRBs) are one of the most tantalizing mysteries of the radio sky; their progenitors and origins remain unknown and until now no rapid multiwavelength follow-up o…

astro-ph.IM2014★ 52 cited

Photometric brown-dwarf classification. I. A method to identify and accurately classify large samples of brown dwarfs without spectroscopy

Nathalie Skrzypek, Stephen J. Warren, Jacqueline K. Faherty +3

Aims. We present a method, named photo-type, to identify and accurately classify L and T dwarfs onto the standard spectral classification system using photometry alone. This enable…

astro-ph.GA2014★ 58 cited

The Detailed Chemical Properties of M31 Star Clusters I. Fe, Alpha and Light Elements

J. E. Colucci, R. A. Bernstein, J. Cohen

We present ages, [Fe/H] and abundances of the alpha elements Ca I, Si I, Ti I, Ti II, and light elements Mg I, Na I, and Al I for 31 globular clusters in M31, which were obtained f…

astro-ph.HE2014★ 63 cited

Constraints on the origin of the first light from SN2014J

A. Goobar, M. Kromer, R. Siverd +6

We study the very early lightcurve of supernova 2014J (SN 2014J) using the high-cadence broad-band imaging data obtained by the Kilodegree Extremely Little Telescope (KELT), which…

cond-mat.supr-con2014★ 72 cited

Superconductivity in Strong Spin Orbital Coupling Compound Sb2Se3

P. P. Kong, F. Sun, L. Y. Xing +15

Recently, A2B3 type strong spin orbital coupling compounds such as Bi2Te3, Bi2Se3 and Sb2Te3 were theoretically predicated to be topological insulators and demonstrated through exp…

astro-ph.GA2014★ 39 cited

Matching the Evolution of the Stellar Mass Function Using Log-normal Star Formation Histories

Louis E. Abramson, Michael D. Gladders, Alan Dressler +3

We show that a model consisting of individual, log-normal star formation histories for a volume-limited sample of galaxies reproduces the evolution of the total and qui…

astro-ph.SR2014★ 41 cited

Rotation, spectral variability, magnetic geometry and magnetosphere of the Of?p star CPD -28 2561

G. A. Wade, R. H. Barbá, J. Grunhut +14

We report magnetic and spectroscopic observations and modeling of the Of?p star CPD -28 2561. Using more than 75 new spectra, we have measured the equivalent width variations and e…

astro-ph.GA2014★ 146 cited

IZI: Inferring the Gas Phase Metallicity (Z) and Ionization Parameter (q) of Ionized Nebulae using Bayesian Statistics

Guillermo A. Blanc, Lisa Kewley, Frédéric P. A. Vogt +1

We present a new method for inferring the metallicity (Z) and ionization parameter (q) of HII regions and star-forming galaxies using strong nebular emission lines (SEL). We use Ba…

physics.flu-dyn2014★ 38 cited

Scaling Laws for Convection with Temperature-dependent Viscosity and Grain-damage

Bradford J. Foley, David Bercovici

Numerical experiments of convection with grain-damage are used to develop scaling laws for convective heat flow, mantle velocity, and plate velocity across the stagnant lid and pla…

astro-ph.GA2014★ 229 cited

Legacy ExtraGalactic UV Survey (LEGUS) with The Hubble Space Telescope. I. Survey Description

D. Calzetti, J. C. Lee, E. Sabbi +46

The Legacy ExtraGalactic UV Survey (LEGUS) is a Cycle 21 Treasury program on the Hubble Space Telescope, aimed at the investigation of star formation and its relation with galactic…

cond-mat.supr-con2014★ 73 cited

Pressure-induced Superconductivity in CaC2

Yan-Ling Li, Wei Luo, Zhi Zeng +3

Carbon can exist as isolated dumbbell, one-dimensional (1D) chain, 2D plane, and 3D network in carbon solids or carbon-based compounds, which attributes to its rich chemical bindin…

astro-ph.SR2014★ 10 cited

Properties of the solar neighbor WISE J072003.20-084651.2

V. D. Ivanov, P. Vaisanen, A. Y. Kniazev +14

The severe crowding towards the Galactic plane suggests that the census of nearby stars in that direction may be incomplete. Recently, Scholz reported a new M9 object at an estimat…

astro-ph.EP2014★ 46 cited

Volatile-Rich Circumstellar Gas in the Unusual 49 Ceti Debris Disk

Aki Roberge, Barry Y. Welsh, Inga Kamp +2

We present Hubble Space Telescope STIS far-UV spectra of the edge-on disk around 49 Ceti, one of the very few debris disks showing sub-mm CO emission. Many atomic absorption lines…

astro-ph.GA2014★ 59 cited

Discovery of a stellar tidal stream around the Whale galaxy, NGC 4631

David Martinez-Delgado, Elena D'Onghia, Taylor S. Chonis +5

We report the discovery of a giant stellar tidal stream in the halo of NGC 4631, a nearby edge-on spiral galaxy interacting with the spiral NGC 4656, in deep images taken with a 40…

astro-ph.GA2014★ 32 cited

The Next Generation Virgo Cluster Survey. XV. The photometric redshift estimation for background sources

A. Raichoor, S. Mei, T. Erben +28

The Next Generation Virgo Cluster Survey is an optical imaging survey covering 104 deg^2 centered on the Virgo cluster. Currently, the complete survey area has been observed in the…

astro-ph.GA2014★ 83 cited

Stellar Kinematics and Structural Properties of Virgo Cluster Dwarf Early-Type Galaxies from the SMAKCED Project III. Rotation versus Pressure Support

E. Toloba, P. Guhathakurta, A. Boselli +17

We analyze the stellar kinematics of 39 dwarf early-type galaxies (dEs) in the Virgo cluster. Based on the specific stellar angular momentum lambda_e and the ellipticity, we find 1…

astro-ph.GA2014★ 72 cited

Stellar Kinematics and Structural Properties of Virgo Cluster Dwarf Early-Type Galaxies from the SMAKCED Project II. The Survey and a Systematic Analysis of Kinematic Anomalies and Asymmetries

E. Toloba, P. Guhathakurta, R. Peletier +15

We present spatially resolved kinematics and global stellar populations and mass-to-light ratios for a sample of 39 dwarf early-type (dE) galaxies in the Virgo cluster studied as p…

astro-ph.SR2014★ 75 cited

The Luminosities of the Coldest Brown Dwarfs

C. G. Tinney, Jacqueline K. Faherty, J. Davy Kirkpatrick +3

In recent years brown dwarfs have been extended to a new Y-dwarf class with effective temperatures colder than 500K and masses in the range 5-30 Jupiter masses. They fill a crucial…