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On the importance of using appropriate spectral models to derive physical properties of galaxies at 0.7<z<2.8
Camilla Pacifici, Elisabete da Cunha, Stéphane Charlot +14
Interpreting observations of distant galaxies in terms of constraints on physical parameters - such as stellar mass, star-formation rate (SFR) and dust optical depth - requires spe…
Multiple Images of a Highly Magnified Supernova Formed by an Early-Type Cluster Galaxy Lens
Patrick L. Kelly, Steven A. Rodney, Tommaso Treu +28
In 1964, Refsdal hypothesized that a supernova whose light traversed multiple paths around a strong gravitational lens could be used to measure the rate of cosmic expansion. We rep…
The Grism Lens-Amplified Survey from Space (GLASS). II. Gas-phase metallicity and radial gradients in an interacting system at z~2
Tucker Jones, Xin Wang, Kasper Schmidt +8
We present spatially resolved gas-phase metallicity for a system of three galaxies at z=1.85 detected in the Grism Lens-Amplified Survey from Space (GLASS). The combination of HST'…
Geometry of Star-Forming Galaxies from SDSS, 3D-HST and CANDELS
A. van der Wel, Yu-Yen Chang, E. F. Bell +18
We determine the intrinsic, 3-dimensional shape distribution of star-forming galaxies at 0<z<2.5, as inferred from their observed projected axis ratios. In the present-day universe…
A Massive Galaxy in its Core Formation Phase Three Billion Years After the Big Bang
Erica Nelson, Pieter van Dokkum, Marijn Franx +13
Most massive galaxies are thought to have formed their dense stellar cores at early cosmic epochs. However, cores in their formation phase have not yet been observed. Previous stud…
Discovery of a Strong Lensing Galaxy Embedded in a Cluster at z = 1.62
Kenneth C. Wong, Kim-Vy H. Tran, Sherry H. Suyu +9
We identify a strong lensing galaxy in the cluster IRC 0218 (also known as XMM-LSS J0218205102) that is spectroscopically confirmed to be at , making it the highest-reds…
Bulge Growth and Quenching since z = 2.5 in CANDELS/3D-HST
Philipp Lang, Stijn Wuyts, Rachel S. Somerville +20
Exploiting the deep high-resolution imaging of all 5 CANDELS fields, and accurate redshift information provided by 3D-HST, we investigate the relation between structure and stellar…
Through the looking GLASS: HST spectroscopy of faint galaxies lensed by the Frontier Fields cluster MACS0717.5+3745
K. B. Schmidt, T. Treu, G. B. Brammer +18
The Grism Lens-Amplified Survey from Space (GLASS) is a Hubble Space Telescope (HST) Large Program, which will obtain 140 orbits of grism spectroscopy of the core and infall region…
Observations of environmental quenching in groups in the 11 Gyr since z=2.5: different quenching for central and satellite galaxies
Tomer Tal, Avishai Dekel, Pascal Oesch +16
We present direct observational evidence for star formation quenching in galaxy groups in the redshift range 0<z<2.5. We utilize a large sample of nearly 6000 groups, selected by f…