University of California, Santa Cruz

output

19912026

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2017 · astro-ph.GAShow all

131 papers · 2 filters

astro-ph.GA2017★ 88 cited

Major Merging History in CANDELS. I. Evolution of the Incidence of Massive Galaxy-Galaxy Pairs from z=3 to z~0

Kameswara Bharadwaj Mantha, Daniel H. McIntosh, Ryan Brennan +37

The rate of major galaxy-galaxy merging is theoretically predicted to steadily increase with redshift during the peak epoch of massive galaxy development ( $1 \leq z \leq 3$ ). We us…

astro-ph.GA2017★ 82 cited

Escape of ionizing radiation from high redshift dwarf galaxies: role of AGN feedback

Maxime Trebitsch, Marta Volonteri, Yohan Dubois +1

While low mass, star forming galaxies are often considered as the primary driver of reionization, their actual contribution to the cosmic ultraviolet background is still uncertain,…

astro-ph.GA2017★ 31 cited

Stellar Stream and Halo Structure in the Andromeda Galaxy From a Subaru/Hyper Suprime-Cam Survey

Yutaka Komiyama, Masashi Chiba, Mikito Tanaka +13

We present wide and deep photometry of the northwest part of the halo of the Andromeda galaxy (M31) using Hyper Suprime-Cam on the Subaru Telescope. The survey covers 9.2 deg $^{2}$ …

astro-ph.GA2017★ 74 cited

Evidence for Merger-Driven Growth in Luminous, High-z, Obscured AGN in the CANDELS/COSMOS Field

J. L. Donley, J. Kartaltepe, D. Kocevski +27

While major mergers have long been proposed as a driver of both AGN activity and the M-sigma relation, studies of moderate to high redshift Seyfert-luminosity AGN hosts have found…

astro-ph.GA2017★ 114 cited

Clumpy Galaxies in CANDELS. II. Physical Properties of UV-bright Clumps at $0.5 \leq z < 3$

Yicheng Guo, Marc Rafelski, Eric F. Bell +20

Studying giant star-forming clumps in distant galaxies is important to understand galaxy formation and evolution. At present, however, observers and theorists have not reached a co…

astro-ph.GA2017★ 59 cited

Spatially resolved kinematics in the central 1 kpc of a compact star-forming galaxy at z=2.3 from ALMA CO observations

G. Barro, M. Kriek, P. G. Perez-Gonzalez +9

We present high spatial resolution (FWHM $\sim$ 0.14'') observations of the CO( $8 - 7$ ) line in GDS-14876, a compact star-forming galaxy at $z = 2.3$ with total stellar mass of $\log(M_{…

astro-ph.GA2017★ 18 cited

The SLUGGS Survey: The Inner Dark Matter Density Slope of the Massive Elliptical Galaxy NGC 1407

Asher Wasserman, Aaron J. Romanowsky, Jean Brodie +7

We investigate the dark matter density profile of the massive elliptical galaxy, NGC 1407, by constructing spherically symmetric Jeans models of its field star and globular cluster…

astro-ph.GA2017★ 67 cited

The extended Planetary Nebula Spectrograph (ePN.S) early-type galaxy survey. The kinematic diversity of stellar halos and the relation between halo transition scale and stellar mass

C. Pulsoni, O. Gerhard, M. Arnaboldi +14

In the hierarchical two-phase formation scenario, the extended halos of early type galaxies (ETGs) are expected to have different physical properties from those of the galaxies' ce…

astro-ph.GA2017★ 34 cited

On the CGM Fundamental Plane: The Halo Mass Dependency of Circumgalactic HI

Rongmon Bordoloi, J. Xavier Prochaska, Jason Tumlinson +3

We analyze the equivalent widths of HI Ly- $α$ ( $W_{L y α}$ ) absorption from the inner (R < 160 kpc) circumgalactic medium (CGM) of 85 galaxies at $z \sim 0$ with stellar masses $M *$ …

astro-ph.GA2017★ 17 cited

Tidal Stripping and Post-Merger Relaxation of Dark Matter Halos: Causes and Consequences of Mass Loss

Christoph T. Lee, Joel R. Primack, Peter Behroozi +3

We study the properties of distinct dark matter halos (i.e., those that are not subhalos) that have a final virial mass $M_{vir}$ at $z = 0$ less than their peak mass ($M_…

astro-ph.GA2017★ 16 cited

Quasar 2175 Å dust absorbers II: Correlation analysis and relationship with other absorption line systems

Jingzhe Ma, Jian Ge, J. Xavier Prochaska +6

We present the cold neutral content (H I and C I gas) of 13 quasar 2175 Å dust absorbers (2DAs) at $z$ = 1.6 - 2.5 to investigate the correlation between the presence of the UV…

astro-ph.GA2017★ 25 cited

The Stripe 82 Massive Galaxy Project III: A Lack of Growth Among Massive Galaxies

Kevin Bundy, Alexie Leauthaud, Shun Saito +3

The average stellar mass (Mstar) of high-mass galaxies (Mstar > 3e11 Msun) is expected to grow by ~30% since z~1, largely through ongoing mergers that are also invoked to explain t…

astro-ph.GA2017★ 8 cited

SDSS-IV MaNGA: Constraints on the Conditions for Star Formation in Galaxy Discs

David V. Stark, Kevin A. Bundy, Matthew E. Orr +12

Regions of disc galaxies with widespread star formation tend to be both gravitationally unstable and self-shielded against ionizing radiation, whereas extended outer discs with lit…

astro-ph.GA2017★ 35 cited

Global Properties of M31's Stellar Halo from the SPLASH Survey: III. Measuring the Stellar Velocity Dispersion Profile

Karoline M. Gilbert, Erik Tollerud, Rachael L. Beaton +7

We present the velocity dispersion of red giant branch (RGB) stars in M31's halo, derived by modeling the line of sight velocity distribution of over 5000 stars in 50 fields spread…

astro-ph.GA2017★ 81 cited

ALMA observations of molecular clouds in three group centered elliptical galaxies: NGC 5846, NGC 4636, and NGC 5044

Pasquale Temi, Alexandre Amblard, Myriam Gitti +4

We present new ALMA CO(2--1) observations of two well studied group-centered elliptical galaxies: NGC~4636 and NGC~5846. In addition, we include a revised analysis of Cycle 0 ALMA…

astro-ph.GA2017★ 75 cited

Cold Filamentary Accretion and the Formation of Metal Poor Globular Clusters and Halo Stars

Nir Mandelker, Pieter G. van Dokkum, Jean P. Brodie +2

We propose that cold filamentary accretion in massive galaxies at high redshift can lead to the formation of star-forming clumps in the halos of these galaxies without the presence…

astro-ph.GA2017★ 54 cited

The Stellar Populations of Two Ultra-Diffuse Galaxies from Optical and Near-infrared Photometry

Viraj Pandya, Aaron J. Romanowsky, Seppo Laine +11

We present observational constraints on the stellar populations of two ultra-diffuse galaxies (UDGs) using optical through near-infrared (NIR) spectral energy distribution (SED) fi…

astro-ph.GA2017★ 225 cited

The Sloan Digital Sky Survey Reverberation Mapping Project: H $α$ and H $β$ Reverberation Measurements From First-year Spectroscopy and Photometry

C. J. Grier, J. R. Trump, Yue Shen +39

We present reverberation mapping results from the first year of combined spectroscopic and photometric observations of the Sloan Digital Sky Survey Reverberation Mapping Project. W…

astro-ph.GA2017★ 36 cited

Very low-luminosity galaxies in the early universe have observed sizes similar to single star cluster complexes

R. J. Bouwens, G. D. Illingworth, P. A. Oesch +4

We compare the sizes and luminosities of 307 faint z=6-8 sources revealed by the Hubble Frontier Fields (HFF) program with sources in the nearby universe. Making use of the latest…

astro-ph.GA2017★ 33 cited

ALMA + VLT observations of a Damped Lyman-α absorbing galaxy: Massive, wide CO emission, gas-rich but with very low SFR

P. Møller, L. Christensen, M. A. Zwaan +7

We are undertaking an ALMA survey of molecular gas in galaxies selected for their strong HI absorption, so-called DLA/sub-DLA galaxies. Here we report CO(2-1) detection from a DLA…

astro-ph.GA2017★ 22 cited

The Astrophysical Consequences of Intervening Galaxy Gas on Fast Radio Bursts

J. Xavier Prochaska, Marcel Neeleman

We adopt and analyze results on the incidence and physical properties of damped Ly $α$ systems (DLAs) to predict the astrophysical impact of gas in galaxies on observations of Fast…

astro-ph.GA2017★ 29 cited

Initial Mass Function Variability (or not) Among \\ Low-Velocity Dispersion, Compact Stellar Systems

Alexa Villaume, Jean Brodie, Charlie Conroy +2

Analyses of strong gravitational lenses, galaxy-scale kinematics, and absorption line stellar population synthesis (SPS) have all concluded that the stellar initial mass function (…