4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of California, Santa CruzUS948 papers
- Space Telescope Science InstituteUS207 papers
- Center for Astrophysics Harvard & SmithsonianUS153 papers
- Max Planck Institute for AstronomyDE138 papers
- University of ArizonaUS127 papers
- University of California, BerkeleyUS127 papers
- California Institute of TechnologyUS126 papers
- Carnegie ObservatoriesUS120 papers
- Carnegie Institution for ScienceUS113 papers
- Swinburne University of TechnologyAU107 papers
- European Southern ObservatoryCL103 papers
- Yale UniversityUS94 papers
48 papers · 2 filters
Formation of ultra-diffuse galaxies in the field and in galaxy groups
Fangzhou Jiang, Avishai Dekel, Jonathan Freundlich +4
We study ultra-diffuse galaxies (UDGs) in zoom in cosmological simulations, seeking the origin of UDGs in the field versus galaxy groups. We find that while field UDGs arise from d…
Weak Lensing Reveals a Tight Connection Between Dark Matter Halo Mass and the Distribution of Stellar Mass in Massive Galaxies
Song Huang, Alexie Leauthaud, Andrew Hearin +9
Using deep images from the Hyper Suprime-Cam (HSC) survey and taking advantage of its unprecedented weak lensing capabilities, we reveal a remarkably tight connection between the s…
The MAGNUM survey: different gas properties in the outflowing and disk components in nearby active galaxies with MUSE
M. Mingozzi, G. Cresci, G. Venturi +17
We investigated the interstellar medium properties of the disc and outflowing gas in the central regions of nine nearby Seyfert galaxies, all characterised by prominent outflows. T…
Constraining Sub-Parsec Binary Supermassive Black Holes in Quasars with Multi-Epoch Spectroscopy. III. Candidates from Continued Radial Velocity Tests
Hengxiao Guo, Xin Liu, Yue Shen +3
Quasars whose broad emission lines show temporal, bulk radial velocity (RV) shifts have been proposed as candidate sub-parsec (sub-pc), binary supermassive black holes (BSBHs). We…
Mirach's Goblin: Discovery of a dwarf spheroidal galaxy behind the Andromeda galaxy
David Martinez-Delgado, Eva K. Grebel, Behnam Javanmardi +9
It is of broad interest for galaxy formation theory to carry out a full inventory of the numbers and properties of dwarf galaxies in the Local Volume, both satellites and isolated…
Project AMIGA: Distance and Metallicity Gradients Along Andromeda's Giant Southern Stream from the Red Clump
Roger E. Cohen, Jason S. Kalirai, Karoline M. Gilbert +7
The Giant Southern Stream (GSS) of M31, a keystone signature of a major accretion event, yields crucial constraints on M31 formation and evolution models. Currently, our understand…
Revisiting the X-ray - Mass scaling relations of Early-type Galaxies with the Mass of their Globular Cluster Systems as a Proxy for the Total Galaxy Mass
Dong-Woo Kim, Nicholas James, Giuseppina Fabbiano +2
Using globular cluster (GC) kinematics and photometry data, we calibrate the scaling relation between the total galaxy mass (M_TOT including dark matter) and total globular cluster…
The WAGGS project - II. The reliability of the calcium triplet as a metallicity indicator in integrated stellar light
Christopher Usher, Thomas Beckwith, Sabine Bellstedt +12
Using data from the WiFeS Atlas of Galactic Globular cluster Spectra we study the behaviour of the calcium triplet (CaT), a popular metallicity indicator in extragalactic stellar p…
IQ-Collaboratory 1.1: the Star-Forming Sequence of Simulated Central Galaxies
ChangHoon Hahn, Tjitske K. Starkenburg, Ena Choi +12
A tightly correlated star formation rate-stellar mass relation of star forming galaxies, or star-forming sequence (SFS), is a key feature in galaxy property-space that is predicted…
Dissecting cold gas in a high-redshift galaxy using a lensed background quasar
J. -K. Krogager, P. Noterdaeme, J. M. O'Meara +9
We present a study of cold gas absorption from a damped Lyman- absorber (DLA) at redshift towards two lensed images of the quasar J144254.78+405535.5 at reds…
A direct test of density wave theory in a grand-design spiral galaxy
Thomas Peterken, Michael Merrifield, Alfonso Aragon-Salamanca +5
The exact nature of the arms of spiral galaxies is still an open question. It has been widely assumed that spiral arms in galaxies with two distinct symmetrical arms are the produc…
QSO MUSEUM I: A sample of 61 extended Ly-emission nebulae surrounding quasars
F. Arrigoni Battaia, J. F. Hennawi, J. X. Prochaska +4
Motivated by the recent discovery of rare Enormous Lyman-Alpha Nebulae (ELAN) around z~2 quasars, we have initiated a long-term observational campaign with the MUSE instrument to d…
The Distance of the Dark Matter Deficient Galaxy NGC1052-DF2
Pieter van Dokkum, Shany Danieli, Yotam Cohen +2
We recently inferred that the galaxy NGC1052-DF2 has little or no dark matter and a rich system of unusual globular clusters. We assumed that the galaxy is a satellite of the lumin…
The Evolution of the HeII-Ionizing Background at Redshifts 2.3<z<3.8 Inferred from a Statistical Sample of 24 HST/COS HeII Ly Absorption Spectra
Gábor Worseck, Frederick B. Davies, Joseph F. Hennawi +1
We present measurements of the large-scale (~40 comoving Mpc) effective optical depth of HeII Ly absorption, , at 2.54<z<3.86 toward 16 HeII-transparent quasars obs…
Angular Momentum and Galaxy Formation Revisited: Scaling Relations for Disks and Bulges
S. Michael Fall, Aaron J. Romanowsky
We show that the stellar specific angular momentum j_*, mass M_*, and bulge fraction beta_* of normal galaxies of all morphological types are consistent with a simple model based o…
A Deficit of Dark Matter from Jeans Modeling of the Ultra-diffuse Galaxy NGC 1052-DF2
Asher Wasserman, Aaron J. Romanowsky, Jean Brodie +5
The discovery of the ultra-diffuse galaxy NGC 1052-DF2 and its peculiar population of star clusters has raised new questions about the connections between galaxies and dark matter…
The Next Generation Virgo Cluster Survey (NGVS) XXXI. The kinematics of intra-cluster globular clusters in the core of the Virgo cluster
Alessia Longobardi, Eric W. Peng, Patrick Côté +21
Intra-cluster (IC) populations are expected to be a natural result of the hierarchical assembly of clusters, yet their low space densities make them difficult to detect and study.…
The Dragonfly Nearby Galaxies Survey. V. HST/ACS Observations of 23 Low Surface Brightness Objects in the Fields of NGC1052, NGC1084, M96, and NGC4258
Yotam Cohen, Pieter van Dokkum, Shany Danieli +8
We present HST/ACS imaging of twenty-three very low surface brightness (=25-27.5) galaxies detected in the fields of four nearby galaxy groups. These objects were selected…
Chromodynamical Analysis of Lenticular Galaxies using Globular Clusters and Planetary Nebulae
Emilio J. B. Zanatta, Arianna Cortesi, Ana L. Chies-Santos +7
Recovering the origins of lenticular galaxies can shed light on the understanding of galaxy formation and evolution, since they present properties that can be found in both ellipti…
A Revised Velocity for the Globular Cluster GC-98 in the Ultra Diffuse Galaxy NGC1052-DF2
Pieter van Dokkum, Yotam Cohen, Shany Danieli +9
We recently published velocity measurements of luminous globular clusters in the galaxy NGC1052-DF2, concluding that it lies far off the canonical stellar mass - halo mass relation…
The Globular Cluster Systems of Ultra-Diffuse Galaxies in the Coma Cluster
Sungsoon Lim, Eric W. Peng, Patrick Cote +4
Ultra-diffuse galaxies (UDGs) are unusual galaxies with low luminosities, similar to classical dwarf galaxies, but sizes up to larger than expected for their mass. Some U…
Evidence of Environmental Quenching at Redshift z ~ 2
Zhiyuan Ji, Mauro Giavalisco, Christina C. Williams +5
We report evidence of environmental quenching among galaxies at redshift ~ 2, namely the probability that a galaxy quenches its star formation activity is enhanced in the regions o…
The spectral and environment properties of quasar pairs
Elisabeta Lusso, Michele Fumagalli, Marc Rafelski +5
We present the first results from our survey of intervening and proximate Lyman limit systems (LLSs) at 2.0-2.5 using the Wide Field Camera 3 on-board the Hubble Space Tel…
Widespread star formation inside galactic outflows
R. Gallagher, R. Maiolino, F. Belfiore +3
Several models have predicted that stars could form inside galactic outflows and that this would be a new major mode of galaxy evolution. Observations of galactic outflows have rev…