Search Publications
Constraining light dark matter with diffuse X-ray and gamma-ray observations
Essig, Rouven; Kuflik, Eric; Volansky, Tomer +2 more
We present constraints on decaying and annihilating dark matter (DM) in the 4 keV to 10 GeV mass range, using published results from the satellites HEAO-1, INTEGRAL, COMPTEL, EGRET, and the Fermi Gamma-ray Space Telescope. We derive analytic expressions for the gamma-ray spectra from various DM decay modes, and find lifetime constraints in the ran…
Galaxy Clusters Discovered via the Sunyaev-Zel'dovich Effect in the First 720 Square Degrees of the South Pole Telescope Survey
Gladders, M. D.; Rest, A.; Foley, R. J. +77 more
We present a catalog of galaxy cluster candidates, selected through their Sunyaev-Zel'dovich (SZ) effect signature in the first 720 deg2 of the South Pole Telescope (SPT) survey. This area was mapped with the SPT in the 2008 and 2009 austral winters to a depth of ~18 µKCMB-arcmin at 150 GHz 550 deg2 of it was…
The M87 Black Hole Mass from Gas-dynamical Models of Space Telescope Imaging Spectrograph Observations
Ho, Luis C.; Barth, Aaron J.; Sarzi, Marc +1 more
The supermassive black hole of M87 is one of the most massive black holes known and has been the subject of several stellar and gas-dynamical mass measurements; however, the most recent revision to the stellar-dynamical black hole mass measurement is a factor of about two larger than the previous gas-dynamical determinations. Here, we apply compre…
The death of massive stars - II. Observational constraints on the progenitors of Type Ibc supernovae
Fraser, Morgan; Smartt, Stephen J.; Eldridge, John J. +2 more
The progenitors of many Type II core-collapse supernovae (SNe) have now been identified directly on pre-discovery imaging. Here, we present an extensive search for the progenitors of Type Ibc SNe in all available pre-discovery imaging since 1998. There are 12 Type Ibc SNe with no detections of progenitors in either deep ground-based or Hubble Spac…
CANDELS Multiwavelength Catalogs: Source Identification and Photometry in the CANDELS UKIDSS Ultra-deep Survey Field
Barro, Guillermo; Santini, Paola; Castellano, Marco +42 more
We present the multiwavelength—ultraviolet to mid-infrared—catalog of the UKIRT Infrared Deep Sky Survey (UKIDSS) Ultra-Deep Survey field observed as part of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS). Based on publicly available data, the catalog includes the CANDELS data from the Hubble Space Telescope (near-inf…
Detection of B-Mode Polarization in the Cosmic Microwave Background with Data from the South Pole Telescope
Ade, P. A. R.; Bock, J. J.; Chiang, H. C. +65 more
Gravitational lensing of the cosmic microwave background generates a curl pattern in the observed polarization. This “B-mode” signal provides a measure of the projected mass distribution over the entire observable Universe and also acts as a contaminant for the measurement of primordial gravity-wave signals. In this Letter we present the first det…
Galaxy Cluster Baryon Fractions Revisited
Zabludoff, Ann I.; Gonzalez, Anthony H.; Zaritsky, Dennis +1 more
We measure the baryons contained in both the stellar and hot-gas components for 12 galaxy clusters and groups at z ~ 0.1 with M = 1-5 × 1014 M ⊙. This paper improves upon our previous work through the addition of XMM-Newton X-ray data, enabling measurements of the total mass and masses of each major baryonic component—intracl…
The Multiphase Structure and Power Sources of Galactic Winds in Major Mergers
Veilleux, Sylvain; Rupke, David S. N.
Massive, galaxy-scale outflows are known to be ubiquitous in major mergers of disk galaxies in the local universe. In this paper, we explore the multiphase structure and power sources of galactic winds in six ultraluminous infrared galaxies (ULIRGs) at z < 0.06 using deep integral field spectroscopy with the Gemini Multi-Object Spectrograph (GM…
The Locations of Short Gamma-Ray Bursts as Evidence for Compact Object Binary Progenitors
Berger, E.; Fong, W.
We present a detailed investigation of Hubble Space Telescope rest-frame UV/optical observations of 22 short gamma-ray burst (GRB) host galaxies and sub-galactic environments. Utilizing the high angular resolution and depth of HST we characterize the host galaxy morphologies, measure precise projected physical and host-normalized offsets between t…
The HST eXtreme Deep Field (XDF): Combining All ACS and WFC3/IR Data on the HUDF Region into the Deepest Field Ever
Trenti, M.; Oesch, P. A.; Carollo, C. M. +8 more
The eXtreme Deep Field (XDF) combines data from 10 years of observations with the Hubble Space Telescope Advanced Camera for Surveys (ACS) and the Wide-Field Camera 3 Infra-Red (WFC3/IR) into the deepest image of the sky ever in the optical/near-IR. Since the initial observations of the Hubble Ultra-Deep Field (HUDF) in 2003, numerous surveys and …