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The Angular Momentum Distribution and Baryon Content of Star-forming Galaxies at z ∼ 1-3
Wuyts, E.; Lutz, D.; Wuyts, S. +25 more
We analyze the angular momenta of massive star-forming galaxies (SFGs) at the peak of the cosmic star formation epoch (z ∼ 0.8-2.6). Our sample of ∼360 log(M */M ⊙) ∼ 9.3-11.8 SFGs is mainly based on the KMOS3D and SINS/zC-SINF surveys of Hα kinematics, and collectively provides a representative subset of the massi…
The Carnegie-Chicago Hubble Program. I. An Independent Approach to the Extragalactic Distance Scale Using Only Population II Distance Indicators
Kollmeier, Juna A.; Madore, Barry F.; Freedman, Wendy L. +15 more
We present an overview of the Carnegie-Chicago Hubble Program, an ongoing program to obtain a 3% measurement of the Hubble constant (H 0) using alternative methods to the traditional Cepheid distance scale. We aim to establish a completely independent route to H 0 using RR Lyrae variables, the tip of the red giant branch (TRG…
The Redshift Distribution of Dusty Star-forming Galaxies from the SPT Survey
Menten, K. M.; Béthermin, M.; Murphy, E. J. +28 more
We use the Atacama Large Millimeter/submillimeter Array (ALMA) in Cycle 1 to determine spectroscopic redshifts of high-redshift dusty star-forming galaxies (DSFGs) selected by their 1.4 mm continuum emission in the South Pole Telescope (SPT) survey. We present ALMA 3 mm spectral scans between 84 and 114 GHz for 15 galaxies and targeted ALMA 1 mm o…
Modeling Dust Evolution in Galaxies with a Multiphase, Inhomogeneous ISM
Jenkins, Edward B.; Klessen, Ralf S.; Zhukovska, Svitlana +1 more
We develop a model of dust evolution in a multiphase, inhomogeneous interstellar medium (ISM) using hydrodynamical simulations of giant molecular clouds in a Milky Way-like spiral galaxy. We improve the treatment of dust growth by accretion in the ISM to investigate the role of the temperature-dependent sticking coefficient and ion-grain interacti…
New constraints on interacting dark energy from cosmic chronometers
Nunes, Rafael C.; Pan, Supriya; Saridakis, Emmanuel N.
We use the latest compilation of observational Hubble parameter measurements estimated with the differential evolution of cosmic chronometers, in combination with the local value of the Hubble constant recently measured with 2.4% precision, to constrain the cosmological scenario where dark energy interacts directly with the dark matter sector. To …
Direct Detection of Lyman Continuum Escape from Local Starburst Galaxies with the Cosmic Origins Spectrograph
Hernandez, Svea; Leitherer, Claus; Oey, M. S. +1 more
We report on the detection of Lyman continuum radiation in two nearby starburst galaxies. Tol 0440-381, Tol 1247-232, and Mrk 54 were observed with the Cosmic Origins Spectrograph on board the Hubble Space Telescope. The three galaxies have radial velocities of ∼13,000 km s-1, permitting a ∼35 Å window on the restframe Lyman continuum s…
The Offset and Host Light Distributions of Long Gamma-Ray Bursts: A New View From HST Observations of Swift Bursts
Fong, Wen-fai; Berger, Edo; Blanchard, Peter K.
We present the results of an extensive Hubble Space Telescope imaging study of 105, mostly Swift, long-duration gamma-ray bursts (LGRBs) spanning 0.03≲ z≲ 9.4, which were localized using relative astrometry from ground- and space-based afterglow observations. We measure the distribution of LGRB offsets from their host centers and their relation to…
The Evolution of Star Formation Histories of Quiescent Galaxies
Barro, Guillermo; Bell, Eric F.; Ferguson, Henry C. +22 more
Although there has been much progress in understanding how galaxies evolve, we still do not understand how and when they stop forming stars and become quiescent. We address this by applying our galaxy spectral energy distribution models, which incorporate physically motivated star formation histories (SFHs) from cosmological simulations, to a samp…
Sub-kiloparsec ALMA Imaging of Compact Star-forming Galaxies at z ~ 2.5: Revealing the Formation of Dense Galactic Cores in the Progenitors of Compact Quiescent Galaxies
Rujopakarn, W.; Faber, S. M.; Guo, Y. +10 more
We present spatially resolved Atacama Large Millimeter/submillimeter Array (ALMA) 870 µm dust continuum maps of six massive, compact, dusty star-forming galaxies at z ∼ 2.5. These galaxies are selected for their small rest-frame optical sizes ({r}{{e,F160W}}∼ 1.6 kpc) and high stellar mass densities that suggest that they are dire…
The population of X-ray supernova remnants in the Large Magellanic Cloud
Pietsch, W.; Haberl, F.; Greiner, J. +11 more
Aims: We present a comprehensive X-ray study of the population of supernova remnants (SNRs) in the Large Magellanic Cloud (LMC). Using primarily XMM-Newton observations, we conduct a systematic spectral analysis of LMC SNRs to gain new insight into their evolution and the interplay with their host galaxy.
Methods: We combined all the arc…