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19952026
most citedThe Demography of Massive Dark Objects in Galaxy Centres

4k citations

Showing 2016Show all

28 papers · 1 filter

astro-ph.GA2016★ 73 cited

Ultra-diffuse and Ultra-compact Galaxies in the Frontier Fields Cluster Abell 2744

Steven Janssens, Roberto Abraham, Jean Brodie +3

We report the discovery of a large population of Ultra-diffuse Galaxies (UDGs) in the massive galaxy cluster Abell 2744 (z=0.308) as observed by the Hubble Frontier Fields program.…

astro-ph.GA2016★ 41 cited

The HDUV Survey: Six Lyman Continuum Emitter Candidates at z~2 Revealed by HST UV Imaging

R. P. Naidu, P. A. Oesch, N. Reddy +14

We present six galaxies at z~2 that show evidence of Lyman continuum (LyC) emission based on the newly acquired UV imaging of the Hubble Deep UV legacy survey (HDUV) conducted with…

astro-ph.GA2016★ 176 cited

The Stellar Initial Mass Function in Early-Type Galaxies from Absorption Line Spectroscopy. III. Radial Gradients

Pieter van Dokkum, Charlie Conroy, Alexa Villaume +2

There is good evidence that the centers of massive early-type galaxies have a bottom-heavy stellar initial mass function (IMF) compared to the IMF of the Milky Way. Here we study t…

astro-ph.GA2016★ 91 cited

The Nature of Massive Transition Galaxies in CANDELS, GAMA, and Cosmological Simulations

Viraj Pandya, Ryan Brennan, Rachel S. Somerville +25

We explore observational and theoretical constraints on how galaxies might transition between the "star-forming main sequence" (SFMS) and varying "degrees of quiescence" out to $z=…

astro-ph.GA2016★ 509 cited

The Thirteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey MApping Nearby Galaxies at Apache Point Observatory

SDSS Collaboration, Franco D. Albareti, Carlos Allende Prieto +335

The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in July 2014. It pursues three core programs: APOGEE-2, MaNGA, and eBOSS. In addition, eBOSS cont…

astro-ph.EP2016★ 52 cited

A Goldilocks principle for modeling radial velocity noise

Fabo Feng, M. Tuomi, H. R. A. Jones +2

The doppler measurements of stars are diluted and distorted by stellar activity noise. Different choices of noise models and statistical methods have led to much controversy in the…

astro-ph.GA2016★ 105 cited

Mass assembly and morphological transformations since from CANDELS

M. Huertas-Company, M. Bernardi, P. G. Pérez-González +14

[abridged] We quantify the evolution of the stellar mass functions of star-forming and quiescent galaxies as a function of morphology from to the present. Our sample cons…

astro-ph.GA2016★ 61 cited

Kinematic Downsizing at z~2

Raymond C. Simons, Susan A. Kassin, Jonathan R. Trump +8

We present results from a survey of the internal kinematics of 49 star-forming galaxies at z2 in the CANDELS fields with the Keck/MOSFIRE spectrograph (SIGMA, Survey in t…

astro-ph.EP2016★ 52 cited

Free-floating planets from core accretion theory: microlensing predictions

Sizheng Ma, Shude Mao, Shigeru Ida +2

We calculate the microlensing event rate and typical time-scales for the free-floating planet (FFP) population that is predicted by the core accretion theory of planet formation. T…

astro-ph.GA2016★ 58 cited

The SLUGGS Survey: The mass distribution in early-type galaxies within five effective radii and beyond

Adebusola B. Alabi, Duncan A. Forbes, Aaron J. Romanowsky +11

We study mass distributions within and beyond 5~effective radii () in 23 early-type galaxies from the SLUGGS survey, using their globular cluster (GC) kinematic data. Th…

astro-ph.GA2016★ 17 cited

New Surface Brightness Fluctuations Spectroscopic Technique: NGC4449 and its Stellar Tidal Stream

Elisa Toloba, Puragra Guhathakurta, Aaron Romanowsky +5

We present a new spectroscopic technique based in part on targeting the upward fluctuations of the surface brightness for studying the internal stellar kinematics and metallicities…

astro-ph.GA2016★ 8 cited

Globular Cluster Scale Sizes in Giant Galaxies: Orbital Anisotropy and Tidally Under-filling Clusters in M87, NGC 1399, and NGC 5128

Jeremy J. Webb, Alison Sills, William E. Harris +4

We investigate the shallow increase in globular cluster half-light radii with projected galactocentric distance observed in the giant galaxies M87, NGC 1399, and NGC 5128.…

astro-ph.SR2016★ 20 cited

Time-Varying Sodium Absorption in the Type Ia Supernova 2013gh

R. Ferretti, R. Amanullah, A. Goobar +18

Temporal variability of narrow absorption lines in high-resolution spectra of Type Ia supernovae (SNe Ia) is studied to search for circumstellar matter. Time series which resolve t…

astro-ph.GA2016★ 39 cited

The UV-optical Color Gradients in Star-Forming Galaxies at 0.5<z<1.5: Origins and Link to Galaxy Assembly

F. S. Liu, Dongfei Jiang, Yicheng Guo +10

The rest-frame UV-optical (i.e., NUV-B) color index is sensitive to the low-level recent star formation and dust extinction, but it is insensitive to the metallicity. In this Lette…

astro-ph.GA2016★ 78 cited

The Next Generation Virgo Cluster Survey (NGVS). XIII. The Luminosity and Mass Function of Galaxies in the Core of the Virgo Cluster and the Contribution from Disrupted Satellites

Laura Ferrarese, Patrick Cote, Ruben Sanchez-Janssen +21

We present measurements of the galaxy luminosity and stellar mass function in a 3.71 deg (0.3 Mpc) area in the core of the Virgo cluster, based on data from the Nex…

astro-ph.CO2016★ 62 cited

The Stacked Lyman-Alpha Emission Profile from the Circum-Galactic Medium of z~2 Quasars

Fabrizio Arrigoni Battaia, Joseph F. Hennawi, Sebastiano Cantalupo +1

In the context of the FLASHLIGHT survey, we obtained deep narrow band images of 15 quasars with GMOS on Gemini-South in an effort to measure Ly emission from circum- an…

astro-ph.CO2016★ 21 cited

On the connection between the metal-enriched intergalactic medium and galaxies: an OVI-galaxy cross-correlation study at

Charles W. Finn, Simon L. Morris, Nicolas Tejos +10

We present new results on the auto- and cross-correlation functions of galaxies and OVI absorbers in a comoving volume at . We use a sample of 51,29…

astro-ph.GA2016★ 57 cited

Star Clusters in M31: VII. Global Kinematics and Metallicity Subpopulations of the Globular Clusters

Nelson Caldwell, Aaron J. Romanowsky

We carry out a joint spatial-kinematical-metallicity analysis of globular clusters (GCs) around the Andromeda Galaxy (M31), using a homogeneous, high-quality spectroscopic dataset.…

astro-ph.GA2016

Recent Results from SPLASH: Chemical Abundances and Kinematics of Andromeda's Stellar Halo

Karoline M. Gilbert, Rachael L. Beaton, Claire Dorman +1

Large scale surveys of Andromeda's resolved stellar populations have revolutionized our view of this galaxy over the past decade. The combination of large-scale, contiguous photome…

astro-ph.GA2016★ 7 cited

Characterizing the SHARDS of Disrupted Milky Way Satellites with LAMOST

Jeffrey L. Carlin, Chao Liu, Heidi Jo Newberg +7

We derive the fraction of substructure in the Galactic halo using a sample of over 10,000 spectroscopically-confirmed halo giant stars from the LAMOST spectroscopic survey. By obse…

astro-ph.HE2016★ 23 cited

Discovery of the Candidate Off-nuclear Ultrasoft Hyper-luminous X-ray Source 3XMM J141711.1+522541

Dacheng Lin, Eleazar R. Carrasco, Natalie A. Webb +8

We report the discovery of an off-nuclear ultrasoft hyper-luminous X-ray source candidate 3XMM J141711.1+522541 in the inactive S0 galaxy SDSS J141711.07+522540.8 (z=0.41827, d_L=2…

astro-ph.GA2016★ 188 cited

An overmassive Dark Halo around an Ultra-diffuse Galaxy in the Virgo Cluster

Michael A. Beasley, Aaron J. Romanowsky, Vincenzo Pota +4

Ultra diffuse galaxies (UDGs) have the sizes of giant galaxies but the luminosities of dwarfs. A key to understanding their origins comes from their total masses, but their low sur…

astro-ph.GA2016★ 77 cited

Evolution of Intrinsic Scatter in the SFR-Stellar Mass Correlation at 0.5<z<3

Peter Kurczynski, Eric Gawiser, Viviana Acquaviva +16

We present estimates of intrinsic scatter in the Star Formation Rate (SFR) - Stellar Mass (M*) correlation in the redshift range 0.5 < z < 3.0 and in the mass range 10^7 < M* < 10^…

astro-ph.GA2016★ 28 cited

The SLUGGS survey: Exploring the globular cluster systems of the Leo II group and their global relationships

Sreeja S. Kartha, Duncan A. Forbes, Adebusola B. Alabi +6

We present an investigation of the globular cluster (GC) systems of NGC 3607 and NGC 3608 as part of the ongoing SLUGGS survey. We use wide-field imaging data from the Subaru teles…