95 citations · 276 across the 16 of their papers we have counts for
17 papers
HST imaging, pipeline modeling, and time-delay predictions of 2 triply-imaged and 15 quadruply-imaged lensed quasars
William Sheu, Tommaso Treu, Adriano Agnello +10
The Hubble tension remains a significant challenge in modern cosmology, exhibiting a discrepancy between early-Universe cosmic microwave background measurements and local distance…
Deriving Stellar Properties, Distances, and Reddenings using Photometry and Astrometry with BRUTUS
Joshua S. Speagle, Catherine Zucker, Angus Beane +18
We present brutus, an open source Python package for quickly deriving stellar properties, distances, and reddenings to stars based on grids of stellar models constrained by photome…
Mapping the Milky Way in 5-D with 170 Million Stars
Joshua S. Speagle, Catherine Zucker, Ana Bonaca +18
We present "augustus", a catalog of distance, extinction, and stellar parameter estimates to 170 million stars from and with dr…
The Primordial Inflation Explorer (PIXIE): Mission Design and Science Goals
Alan Kogut, Eric Switzer, Dale Fixsen +14
The Primordial Inflation Explorer (PIXIE) is an Explorer-class mission concept to measure the energy spectrum and linear polarization of the cosmic microwave background (CMB). A si…
Probing Dark Matter with Adaptive-optics based Flux Ratio Anomalies: Photometric and Astrometric Precision
Ioana A. Zelko, Anna M. Nierenberg, Tommaso Treu
Strong gravitational lensing is a powerful probe of the distribution of matter on sub-kpc scales. It can be used to test the existence of completely dark subhalos surrounding galax…
All We Are Is Dust In The WIM: Constraints on Dust Properties in the Milky Way's Warm Ionized Medium
J. L. West, B. M. Gaensler, M. -A. Miville-Deschênes +5
We present a comparison of the presence and properties of dust in two distinct phases of the Milky Way's interstellar medium: the warm neutral medium (WNM) and the warm ionized med…
NANCY: Next-generation All-sky Near-infrared Community surveY
Jiwon Jesse Han, Arjun Dey, Adrian M. Price-Whelan +206
The Nancy Grace Roman Space Telescope is capable of delivering an unprecedented all-sky, high-spatial resolution, multi-epoch infrared map to the astronomical community. This oppor…
Systematic error mitigation for the PIXIE Fourier transform spectrometer
A. Kogut, Dale Fixsen, Nabila Aghanim +11
The Primordial Inflation Explorer (PIXIE) is an Explorer-class mission concept to measure the spectrum and polarization of the cosmic microwave background. Cosmological signals are…
The First 3 3D Map of ISM Dust Temperature
Ioana A. Zelko, Douglas P. Finkbeiner, Albert Lee +1
We present the first large-scale 3D map of interstellar dust temperature. We build upon existing 3D reddening maps derived from starlight absorption (Bayestar19), covering 3/4 of t…
The Dark Energy Camera Plane Survey 2 (DECaPS2): More Sky, Less Bias, and Better Uncertainties
A. K. Saydjari, E. F. Schlafly, D. Lang +10
Deep optical and near-infrared imaging of the entire Galactic plane is essential for understanding our Galaxy's stars, gas, and dust. The second data release of the DECam Plane Sur…
Constraints on sterile neutrino models from strong gravitational lensing, Milky Way satellites, and Lyman- forest
Ioana A. Zelko, Tommaso Treu, Kevork N. Abazajian +5
The nature of dark matter is one of the most important unsolved questions in science. Some dark matter candidates do not have sufficient nongravitational interactions to be probed…
The First Global e-Competition on Astronomy and Astrophysics
Ioana A. Zelko, Charles Barclay, Tonis Eenmae +7
The first Global e-Competition on Astronomy and Astrophysics was held online in September-October 2020 as a replacement for the International Olympiad on Astronomy and Astrophysics…
Impact of Dust on Spectral Distortion Measurements of the Cosmic Microwave Background
Ioana A. Zelko, Douglas P. Finkbeiner
Spectral distortions of the cosmic microwave background (CMB) are sensitive to energy injection by exotic physics in the early universe. The proposed Primordial Inflation Explorer…
Implications of Grain Size Distribution and Composition for the Correlation Between Dust Extinction and Emissivity
Ioana A. Zelko, Douglas P. Finkbeiner
We study the effect of variations in dust size distribution and composition on the correlation between the spectral shape of extinction (parameterized by ) and far-…
Brute-Force Mapmaking with Compact Interferometers: A MITEoR Northern Sky Map from 128 MHz to 175 MHz
H. Zheng, M. Tegmark, J. Dillon +24
We present a new method for interferometric imaging that is ideal for the large fields of view and compact arrays common in 21 cm cosmology. We first demonstrate the method with si…
MITEoR: A Scalable Interferometer for Precision 21 cm Cosmology
Haoxuan Zheng, Max Tegmark, Victor Buza +34
We report on the MIT Epoch of Reionization (MITEoR) experiment, a pathfinder low-frequency radio interferometer whose goal is to test technologies that improve the calibration prec…
Mapping our Universe in 3D with MITEoR
Haoxuan Zheng, Max Tegmark, Victor Buza +33
Mapping our universe in 3D by imaging the redshifted 21 cm line from neutral hydrogen has the potential to overtake the cosmic microwave background as our most powerful cosmologica…