Search Results - "Speagle(沈佳士), Joshua S"

A New Census of the 0.2 < z < 3.0 Universe. II. The Star-forming Sequence by Leja, Joel, Speagle, Joshua S., Ting, Yuan-Sen, Johnson, Benjamin D., Conroy, Charlie, Whitaker, Katherine E., Nelson, Erica J., Dokkum, Pieter van, Franx, Marijn

“…Abstract We use the panchromatic spectral energy distribution (SED)-fitting code Prospector to measure the galaxy log M *–logSFR relationship (the star-forming…”
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Making the sum greater than its parts by Speagle (沈佳士), Joshua S., Eadie, Gwendolyn M.

“…Without a proper accounting of known and unknown systematics and uncertainties, combining information across multiple surveys, wavelengths, and detectors may…”
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Photometric Completeness Modelled with Neural Networks by Harris, William E., Speagle, Joshua S.

“…Abstract In almost any study involving optical/near-infrared photometry, understanding the completeness of detection and recovery is an essential part of the…”
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The outer stellar mass of massive galaxies: a simple tracer of halo mass with scatter comparable to richness and reduced projection effects by Huang(黄崧), Song, Leauthaud, Alexie, Bradshaw, Christopher, Hearin, Andrew, Behroozi, Peter, Lange, Johannes, Greene, Jenny, DeRose, Joseph, Speagle(沈佳士), Joshua S, Xhakaj, Enia

“…ABSTRACT Using the weak gravitational lensing data from the Hyper Suprime-Cam Subaru Strategic Program (HSC survey), we study the potential of different…”
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The Stellar Halo of the Galaxy is Tilted and Doubly Broken by Han, Jiwon Jesse, Conroy, Charlie, Johnson, Benjamin D., Speagle, Joshua S., Bonaca, Ana, Chandra, Vedant, Naidu, Rohan P., Ting, Yuan-Sen, Woody, Turner, Zaritsky, Dennis

“…Abstract Modern Galactic surveys have revealed an ancient merger that dominates the stellar halo of our galaxy (Gaia–Sausage–Enceladus, GSE). Using chemical…”
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The Mass of the Milky Way from the H3 Survey by Shen, Jeff, Eadie, Gwendolyn M., Murray, Norman, Zaritsky, Dennis, Speagle, Joshua S., Ting, Yuan-Sen, Conroy, Charlie, Cargile, Phillip A., Johnson, Benjamin D., Naidu, Rohan P., Han, Jiwon Jesse

“…Abstract The mass of the Milky Way is a critical quantity that, despite decades of research, remains uncertain within a factor of two. Until recently, most…”
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Evidence from Disrupted Halo Dwarfs that r-process Enrichment via Neutron Star Mergers is Delayed by ≳500 Myr by Naidu, Rohan P., Ji, Alexander P., Conroy, Charlie, Bonaca, Ana, Ting, Yuan-Sen, Zaritsky, Dennis, van Son, Lieke A. C., Broekgaarden, Floor S., Tacchella, Sandro, Chandra, Vedant, Caldwell, Nelson, Cargile, Phillip, Speagle, Joshua S.

“…Abstract The astrophysical origins of r -process elements remain elusive. Neutron star mergers (NSMs) and special classes of core-collapse supernovae (rCCSNe)…”
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Searching for the extra-tidal stars of globular clusters using high-dimensional analysis and a core particle spray code by Grondin, Steffani M, Webb, Jeremy J, Leigh, Nathan W C, Speagle(沈佳士), Joshua S, Khalifeh, Reem J

“…ABSTRACT Three-body interactions can eject stars from the core of a globular cluster, causing them to enter the Galactic halo as extra-tidal stars. While…”
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Should Zeros Count? Modeling the Galaxy–Globular Cluster Scaling Relation with(out) Zero-inflated Count Models by Berek, Samantha C., Eadie, Gwendolyn M., Speagle, Joshua S., Wang, Shu Yan

“…Abstract The scaling relation between the size of a galaxy’s globular cluster (GC) population ( N GC ) and the galaxy’s stellar mass ( M * ) is usually…”
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A Tilt in the Dark Matter Halo of the Galaxy by Han, Jiwon Jesse, Naidu, Rohan P., Conroy, Charlie, Bonaca, Ana, Zaritsky, Dennis, Caldwell, Nelson, Cargile, Phillip, Johnson, Benjamin D., Chandra, Vedant, Speagle, Joshua S., Ting, Yuan-Sen, Woody, Turner

“…Abstract Recent observations of the stellar halo have uncovered the debris of an ancient merger, Gaia–Sausage–Enceladus (GSE), estimated to have occurred ≳8…”
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Characterizing the 3D Kinematics of Young Stars in the Radcliffe Wave by Tu, Alan J., Zucker, Catherine, Speagle, Joshua S., Beane, Angus, Goodman, Alyssa, Alves, João, Faherty, Jacqueline, Burkert, Andreas

“…Abstract We present an analysis of the kinematics of the Radcliffe Wave, a 2.7 kpc long sinusoidal band of molecular clouds in the solar neighborhood recently…”
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SBI++: Flexible, Ultra-fast Likelihood-free Inference Customized for Astronomical Applications by Wang, Bingjie, Leja, Joel, Villar, V. Ashley, Speagle, Joshua S.

“…Abstract Flagship near-future surveys targeting 10 8 –10 9 galaxies across cosmic time will soon reveal the processes of galaxy assembly in unprecedented…”
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On the Robustness of the Velocity Anisotropy Parameter in Probing the Stellar Kinematics in Milky Way–Like Galaxies: Takeaway from TNG50 Simulation by Emami, Razieh, Hernquist, Lars, Vogelsberger, Mark, Shen, Xuejian, Speagle, Joshua S., Moreno, Jorge, Alcock, Charles, Genel, Shy, Forbes, John C., Marinacci, Federico, Torrey, Paul

“…Abstract We analyze the velocity anisotropy of stars in real and energy space for a sample of Milky Way–like galaxies in the TNG50 simulation. We employ…”
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Stochastic Modeling of Star Formation Histories. III. Constraints from Physically Motivated Gaussian Processes by Iyer, Kartheik G., Speagle, Joshua S., Caplar, Neven, Forbes, John C., Gawiser, Eric, Leja, Joel, Tacchella, Sandro

“…Abstract Galaxy formation and evolution involve a variety of effectively stochastic processes that operate over different timescales. The extended regulator…”
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The First Catalog of Candidate White Dwarf–Main-sequence Binaries in Open Star Clusters: A New Window into Common Envelope Evolution by Grondin, Steffani M., Drout, Maria R., Nordhaus, Jason, Muirhead, Philip S., Speagle, Joshua S., Chornock, Ryan

“…Abstract Close binary systems are the progenitors to both Type Ia supernovae and the compact object mergers that can be detected via gravitational waves. To…”
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Improving Power Spectrum Estimation Using Multitapering: Efficient Asteroseismic Analyses for Understanding Stars, the Milky Way, and Beyond by Patil, Aarya A., Eadie, Gwendolyn M., Speagle, Joshua S., Thomson, David J.

“…Abstract Asteroseismic time series data have imprints of stellar oscillation modes, whose detection and characterization through time series analysis allows us…”
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The Dark Energy Camera Plane Survey 2 (DECaPS2): More Sky, Less Bias, and Better Uncertainties by Saydjari, Andrew K., Schlafly, Edward F., Lang, Dustin, Meisner, Aaron M., Green, Gregory M., Zucker, Catherine, Zelko, Ioana, Speagle, Joshua S., Daylan, Tansu, Lee, Albert, Valdes, Francisco, Schlegel, David, Finkbeiner, Douglas P.

“…Abstract 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…”
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The HERBAL Model: A Hierarchical Errors-in-variables Bayesian Lognormal Hurdle Model for Galactic Globular Cluster Populations by Berek, Samantha C., Eadie, Gwendolyn M., Speagle, Joshua S., Harris, William E.

“…Abstract Galaxy stellar mass is known to be monotonically related to the size of the galaxy’s globular cluster (GC) population for Milky Way sized and larger…”
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Disentangling Stellar Age Estimates from Galactic Chemodynamical Evolution by Shen, Jeff, Speagle, Joshua S., Mackereth, J. Ted, Ting, Yuan-Sen, Bovy, Jo

“…Abstract Stellar ages are key for determining the formation history of the Milky Way, but are difficult to measure precisely. Furthermore, methods that use…”
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As Simple as Possible but No Simpler: Optimizing the Performance of Neural Net Emulators for Galaxy SED Fitting by Mathews, Elijah P., Leja, Joel, Speagle, Joshua S., Johnson, Benjamin D., Gibson, Justus, Nelson, Erica J., Suess, Katherine A., Tacchella, Sandro, Whitaker, Katherine E., Wang, Bingjie

“…Abstract Artificial neural network emulators have been demonstrated to be a very computationally efficient method to rapidly generate galaxy spectral energy…”
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