Search Publications
Missions
Journals
Publication Years
Evolution of Intrinsic Scatter in the SFR-Stellar Mass Correlation at 0.5 < z < 3
Bell, Eric F.; Ferguson, Henry C.; Grogin, Norman A. +16 more
We present estimates of intrinsic scatter in the star formation rate (SFR)-stellar mass (M*) correlation in the redshift range 0.5< z< 3.0 and in the mass range {10}7< {M}*< {10}11M⊙. We utilize photometry in the Hubble Ultradeep Field (HUDF12) and Ultraviolet Ultra Deep Field (UVU…
The Properties of the Circumgalactic Medium in Red and Blue Galaxies: Results from the COS-GASS+COS-Halos Surveys
Heckman, Timothy; Saintonge, Amelie; Davé, Romeel +7 more
We use the combined data from the COS-GASS and COS-Halos surveys to characterize the Circum-Galactic Medium (CGM) surrounding typical low-redshift galaxies in the mass range {M}* ∼ {10}9.5-11.5 {M}⊙ , and over a range of impact parameters extending to just beyond the halo virial radius (R vir). We find t…
Constraining gravity at the largest scales through CMB lensing and galaxy velocities
Ho, Shirley; Alam, Shadab; Pullen, Anthony R. +1 more
We demonstrate a new method to constrain gravity on the largest cosmological scales by combining measurements of cosmic microwave background (CMB) lensing and the galaxy velocity field. EG is a statistic, constructed from a gravitational lensing tracer and a measure of velocities such as redshift-space distortions (RSD), that can discri…
The deepest X-ray view of high-redshift galaxies: constraints on low-rate black hole accretion
Lehmer, B. D.; Bauer, F. E.; Brandt, W. N. +16 more
We exploit the 7 Ms Chandra observations in the Chandra Deep Field-South (CDF-S), the deepest X-ray survey to date, coupled with CANDELS/GOODS-S data, to measure the total X-ray emission arising from 2076 galaxies at 3.5 ≤ z < 6.5. This aim is achieved by stacking the Chandra data at the positions of optically selected galaxies, reaching effect…
A disc wind interpretation of the strong Fe Kα features in 1H 0707-495
Done, Chris; Takahashi, Tadayuki; Hagino, Kouichi +3 more
1H 0707-495 is the most convincing example of a supermassive black hole with an X-ray spectrum being dominated by extremely smeared, relativistic reflection, with the additional requirement of strongly supersolar iron abundance. However, here we show that the iron features in its 2-10 keV spectrum are rather similar to the archetypal wind dominate…
Cosmological limits on neutrino unknowns versus low redshift priors
Di Valentino, Eleonora; Melchiorri, Alessandro; Mena, Olga +2 more
Recent cosmic microwave background (CMB) temperature and polarization anisotropy measurements from the Planck mission have significantly improved previous constraints on the neutrino masses as well as the bounds on extended models with massless or massive sterile neutrino states. However, due to parameter degeneracies, additional low redshift prio…
Proplyds Around a B1 Star: 42 Orionis in NGC 1977
Fang, Min; Facchini, Stefano; Clarke, Cathie J. +1 more
We present the discovery of seven new proplyds (I.e., sources surrounded by cometary Hα emission characteristic of offset ionization fronts (IFs)) in NGC 1977, located about 30‧ north of the Orion Nebula Cluster (ONC) at a distance of ∼400 pc. Each of these proplyds is situated at projected distances 0.04-0.27 pc from the B1V star 42 Orionis (c Or…
A Comprehensive Census of Nearby Infrared Excess Stars
Song, Inseok; Cotten, Tara H.
The conclusion of the Wide-Field Infrared Survey Explorer (WISE) mission presents an opportune time to summarize the history of using excess emission in the infrared as a tracer of circumstellar material and exploit all available data for future missions such as the James Webb Space Telescope. We have compiled a catalog of infrared excess stars fr…
The Strikingly Uniform, Highly Turbulent Interstellar Medium of the Most Luminous Galaxy in the Universe
Stern, D.; Wu, J.; Aravena, M. +6 more
Observed at z = 4.601 and with Lbol = 3.5 × 1014 L⊙ , W2246-0526 is the most luminous galaxy known in the universe and hosts a deeply buried active galactic nucleus (AGN)/supermassive black hole (SMBH). Discovered using the Wide-field Infrared Survey Explorer, W2246-0526 is classified as a hot dust-obscured galaxy,…
Frontier Fields: Subaru Weak-Lensing Analysis of the Merging Galaxy Cluster A2744
Massey, Richard; Umetsu, Keiichi; Medezinski, Elinor +5 more
We present a weak-lensing analysis of the merging Frontier Fields (FF) cluster Abell 2744 using new Subaru/Suprime-Cam imaging. The wide-field lensing mass distribution reveals this cluster is comprised of four distinct substructures. Simultaneously modeling the two-dimensional reduced shear field using a combination of a Navarro-Frenk-White (NFW)…