4.3k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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19 papers · 2 filters
MUSE-ings on AM1354-250: Collisions, Shocks and Rings
Blair C. Conn, L. M. R. Fogarty, Rory Smith +1
We present MUSE observations of AM1354-250, confirming its status as a collisional ring galaxy which has recently undergone an interaction, creating its distinctive shape. We analy…
Origin of the Metallicity Distribution in the Thick Disc
Maider S. Miranda, Kate Pilkington, Brad K. Gibson +9
Aims. Using a suite of cosmological chemodynamical disc galaxy simulations, we assess how (a) radial metallicity gradients evolve with scaleheight; (b) the vertical metallicity gra…
A Formation Scenario for the Disk of Satellites: Accretion of Satellites during Mergers
Rory Smith, Pierre-Alain Duc, Frederic Bournaud +1
The Disk of Satellites (DoS) observed in the Andromeda galaxy is a thin and extended group of satellites, nearly perpendicular to the disk plane, that share a common direction of r…
Demonstration of KVN phase referencing capability
Evangelia Tremou, Taehyun Jung, Aeree Chung +1
We present the results of Very Long Baseline Interferometry (VLBI) observations using the phase reference technique to detect weak Active Galactic Nuclei (AGN) cores in the Virgo c…
Weighing the Galactic disk using the Jeans equation: lessons from simulations
G. N. Candlish, R. Smith, C. Moni Bidin +1
Using three-dimensional stellar kinematic data from simulated galaxies, we examine the efficacy of a Jeans equation analysis in reconstructing the total disk surface density, inclu…
The Prevalence of Gas Outflows in Type 2 AGNs
Jong-Hak Woo, Hyun-Jin Bae, Donghoon Son +1
To constrain the nature and fraction of the ionized gas outflows in AGNs, we perform a detailed analysis on gas kinematics as manifested by the velocity dispersion and shift of the…
Early Science with the Large Millimeter Telescope: COOL BUDHIES I - a pilot study of molecular and atomic gas at z~0.2
Ryan Cybulski, Min S. Yun, Neal Erickson +20
An understanding of the mass build-up in galaxies over time necessitates tracing the evolution of cold gas (molecular and atomic) in galaxies. To that end, we have conducted a pilo…
On the Use of the Number Count of Blue Horizontal--Branch Stars to Infer the Dominant Building Blocks of the Milky Way Halo
Chul Chung, Young-Wook Lee, Mario Pasquato
The formation of the Milky Way stellar halo is thought to be the result of merging and accretion of building blocks such as dwarf galaxies and massive globular clusters. Recently,…
Formation of globular clusters in atomic-cooling halos via rapid gas condensation and fragmentation during the epoch of reionization
Taysun Kimm, Renyue Cen, Joakim Rosdahl +1
We investigate the formation of metal-poor globular clusters (GCs) at the center of two dark matter halos with at using cosmological r…
The search for active black holes in nearby low-mass galaxies using optical and mid-IR data
Lia F. Sartori, Kevin Schawinski, Ezequiel Treister +4
We investigated AGN activity in low-mass galaxies, an important regime that can shed light onto BH formation and evolution, and their interaction with their host galaxies. We ident…
The Sensitivity of Harassment to Orbit: Mass Loss from Early-Type Dwarfs in Galaxy Clusters
Rory Smith, Ruben Sanchez-Janssen, Michael A. Beasley +11
We conduct a comprehensive numerical study of the orbital dependence of harassment on early-type dwarfs consisting of 168 different orbits within a realistic, Virgo-like cluster, v…
The Milky Way without X: An alternative interpretation of the double red clump in the Galactic bulge
Young-Wook Lee, Seok-Joo Joo, Chul Chung
The presence of two red clumps (RCs) in high latitude fields of the Milky Way bulge is interpreted as evidence for an X-shaped structure originated from the bar instability. Here w…
Outflows in Sodium Excess Objects
Jongwon Park, Hyunjin Jeong, Sukyoung K. Yi
van Dokkum and Conroy revisited the unexpectedly strong Na I lines at 8200 A found in some giant elliptical galaxies and interpreted it as evidence for unusually bottom-heavy initi…
A low-luminosity type-1 QSO sample; III. Optical spectroscopic properties and activity classification
E. Tremou, M. Garcia-Marin, J. Zuther +4
We report on the optical spectroscopic analysis of a sample of 99 low-luminosity quasi-stellar objects (LLQSOs) at base the Hamburg/ESO QSO survey (HES). The LLQSOs pr…
Measuring Infrared Surface Brightness Fluctuation Distances with HST WFC3: Calibration and Advice
Joseph B. Jensen, John P. Blakeslee, Zachary Gibson +5
We present new calibrations of the near-infrared surface brightness fluctuation (SBF) distance method for the F110W (J) and F160W (H) bandpasses of the Wide Field Camera 3 Infrared…
A New Catalogue of Type 1 AGN and its Implication on the AGN Unified Model
Kyuseok Oh, Sukyoung K. Yi, Kevin Schawinski +2
We have newly identified a substantial number of type 1 active galactic nuclei (AGN) featuring weak broad-line regions (BLRs) at z < 0.2 from detailed analysis of galaxy spectra in…
The difficult early stages of embedded star clusters and the importance of the pre-gas expulsion virial ratio
J. P. Farias, R. Smith, M. Fellhauer +4
We examine the effects of gas-expulsion on initially substructured distributions of stars. We perform N-body simulations of the evolution of these distributions in a static backgro…
Caught in the act: gas and stellar velocity dispersions in a fast quenching compact star-forming galaxy at z~1.7
G. Barro, S. M. Faber, A. Dekel +20
We present Keck-I MOSFIRE spectroscopy in the Y and H bands of GDN-8231, a massive, compact, star-forming galaxy (SFG) at a redshift . Its spectrum reveals both H and…
The Lick AGN Monitoring Project 2011: Spectroscopic Campaign and Emission-Line Light Curves
A. J. Barth, V. N. Bennert, G. Canalizo +27
In the Spring of 2011 we carried out a 2.5 month reverberation mapping campaign using the 3 m Shane telescope at Lick Observatory, monitoring 15 low-redshift Seyfert 1 galaxies. Th…