616 citations · 2.1k across the 19 of their papers we have counts for
19 papers
Breaking the AGB Color Degeneracy with Variability and HO: A Consistent Picture of AGB Chemistry, Dust, and the J-Region Across Environments
Caroline D. Huang, Massimo Marengo, Antonio Capodagli +7
Resolved asymptotic giant branch (AGB) populations present many observational puzzles. We consider three often treated separately: photometric C/O classification boundaries must be…
CHASE Spectral Survey I: Measuring Contamination in the Color-selected J-region Asymptotic Giant Branch Distance Indicator
Siyang Li, Alexei V. Filippenko, Arief Ahmad +11
The J-region asymptotic giant branch (JAGB) method for distance measurements uses the near uniform luminosity of carbon-rich AGB stars as a standard candle. Its application rests o…
The Roman eXtreme Deep Field (RXDF)
Haojing Yan, Anton M. Koekemoer, Yue Shen +127
The Roman eXtreme Deep Field (RXDF) program is one of the five General Astrophysics Survey (GAS) programs approved for observing time with the Nancy Grace Roman Space Telescope in…
Chromatic Effects Across the Roman Focal Plane: Implications for Supernova Photometry and Measurements of Cosmological Parameters
Rujuta Purohit, Dillon Brout, Daniel Scolnic +14
Calibration uncertainties are the leading systematics in cosmological analyses using Type Ia supernovae (SNe Ia). For the \textit{Nancy Grace Roman Space Telescope (Roman)}, we qua…
The Perfect Host: JWST Cepheid Observations in a Background-Free SN Ia Host Confirm No Bias in Hubble-Constant Measurements
Adam G. Riess, Siyang Li, Gagandeep S. Anand +8
Cycle 1 JWST observations of Cepheids in SN Ia hosts resolved their red-giant-dominated NIR backgrounds, sharply reducing crowding and showing that photometric bias in lower-resolu…
Converging on the Cepheid Metallicity Dependence: Implications of Non-Standard Gaia Parallax Recalibration on Distance Measures
Louise Breuval, Gagandeep S. Anand, Richard I. Anderson +20
By comparing Cepheid brightnesses with geometric distance measures including Gaia EDR3 parallaxes, most recent analyses conclude metal-rich Cepheids are brighter, quantified as $γ\…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
JAGB 2.0: Improved Constraints on the J-region Asymptotic Giant Branch-based Hubble Constant from an Expanded Sample of JWST Observations
Siyang Li, Adam G. Riess, Daniel Scolnic +2
The J-region Asymptotic Giant Branch (JAGB) is an overdensity of stars in the near-infrared, attributed to carbon-rich asymptotic giant branch stars, and recently used as a standar…
JWST Validates HST Distance Measurements: Selection of Supernova Subsample Explains Differences in JWST Estimates of Local H0
Adam G. Riess, Dan Scolnic, Gagandeep S. Anand +16
JWST provides new opportunities to cross-check the HST Cepheid/SNeIa distance ladder, which yields the most precise local measure of H0. We analyze early JWST subsamples (~1/4 of t…
The Mira Distance Ladder
Caroline D. Huang
Here we provide a review of Mira variables, their basic properties, and Period-Luminosity Relations with an emphasis on their role in measuring the Hubble Constant. The usage of mu…
Milky Way Cepheid Standards for Measuring Cosmic Distances and Application to Gaia DR2: Implications for the Hubble Constant
Adam G. Riess, Stefano Casertano, Wenlong Yuan +9
We present HST photometry of a selected sample of 50 long-period, low-extinction Milky Way Cepheids measured on the same WFC3 F555W, F814W, and F160W-band photometric system as ext…
LINEAR: A Novel Algorithm for Reconstructing Slitless Spectroscopy from HST/WFC3
R. E. Ryan, S. Casertano, N. Pirzkal
We present a grism extraction package (LINEAR) designed to reconstruct one-dimensional spectra from a collection of slitless spectroscopic images, ideally taken at a variety of ori…
Pan-STARRS Photometric and Astrometric Calibration
Eugene. A. Magnier, Edward. F. Schlafly, Douglas P. Finkbeiner +18
We present the details of the photometric and astrometric calibration of the Pan-STARRS1 Survey. The photometric goals were to reduce the systematic effects introduced by the…
Parallax of Galactic Cepheids from Spatially Scanning the Wide Field Camera 3 on the Hubble Space Telescope: The Case of SS Canis Majoris
Stefano Casertano, Adam G. Riess, Jay Anderson +10
We present a high-precision measurement of the parallax for the 12-day Cepheid SS Canis Majoris, obtained via spatial scanning with the Wide Field Camera 3 (WFC3) on the Hubble Spa…
New insights on the Galactic Bulge Initial Mass Function
A. Calamida, K. C. Sahu, S. Casertano +15
We have derived the Galactic bulge initial mass function of the SWEEPS field in the mass range 0.15 1.0, using deep photometry collected with the Advanced Camera f…
Measuring the Stellar Masses of z~7 Galaxies with Spitzer Ultrafaint Survey Program (SURFS UP)
R. E. Ryan, A. H. Gonzalez B. C. Lemaux, M. Bradac +14
We present Spitzer/IRAC observations of nine -band dropouts highly magnified (2<mu<12) by the Bullet Cluster. We combine archival imaging with our Exploratory program (SURFS UP…
Narrow-Angle Astrometry with the Space Interferometry Mission: The Search for Extra-solar Planets. I. Detection and Characterization of Single Planets
A. Sozzetti, S. Casertano, R. A. Brown +1
(abridged) We present results from a detailed set of end-to-end numerical simulations of SIM narrow-angle astrometric measurements and data analysis to illustrate the enormous pote…
The GAIA astrometric survey of extra-solar planets
M. G. Lattanzi, S. Casertano, A. Sozzetti +1
The ESA Cornerstone Mission GAIA, to be launched prior to 2012 and with a nominal lifetime of 5 years, will improve the accuracy of Hipparcos astrometry by more than two orders of…
HST Measurements of the Expansion of NGC 6543: Parallax Distance and Nebular Evolution
D. S. Reed, B. Balick, A. R. Hajian +5
The optical expansion parallax of NGC 6543 has been detected and measured using two epochs of HST images separated by a time baseline of only three years. We have utilized three se…