Search Results - "Johnson, Benjamin D."

Nebular Continuum and Line Emission in Stellar Population Synthesis Models by Byler, Nell, Dalcanton, Julianne J., Conroy, Charlie, Johnson, Benjamin D.

“…Accounting for nebular emission when modeling galaxy spectral energy distributions (SEDs) is important, as both line and continuum emissions can contribute…”
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How to Measure Galaxy Star Formation Histories. II. Nonparametric Models by Leja, Joel, Carnall, Adam C., Johnson, Benjamin D., Conroy, Charlie, Speagle, Joshua S.

“…Nonparametric star formation histories (SFHs) have long promised to be the "gold standard" for galaxy spectral energy distribution (SED) modeling as they are…”
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MESA ISOCHRONES AND STELLAR TRACKS (MIST). I. SOLAR-SCALED MODELS by Choi, Jieun, Dotter, Aaron, Conroy, Charlie, Cantiello, Matteo, Paxton, Bill, Johnson, Benjamin D.

“…ABSTRACT This is the first of a series of papers presenting the Modules for Experiments in Stellar Astrophysics (MESA) Isochrones and Stellar Tracks (MIST)…”
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A Redshift-independent Efficiency Model: Star Formation and Stellar Masses in Dark Matter Halos at z 4 by Tacchella, Sandro, Bose, Sownak, Conroy, Charlie, Eisenstein, Daniel J., Johnson, Benjamin D.

“…We explore the connection between the UV luminosity functions (LFs) of high-z galaxies and the distribution of stellar masses and star formation histories…”
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How to Measure Galaxy Star Formation Histories. I. Parametric Models by Carnall, Adam C., Leja, Joel, Johnson, Benjamin D., McLure, Ross J., Dunlop, James S., Conroy, Charlie

“…Parametric models for galaxy star formation histories (SFHs) are widely used, though they are known to impose strong priors on physical parameters. This has…”
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A Theory for the Variation of Dust Attenuation Laws in Galaxies by Narayanan, Desika, Conroy, Charlie, Davé, Romeel, Johnson, Benjamin D., Popping, Gergö

“…In this paper, we provide a physical model for the origin of variations in the shapes and bump strengths of dust attenuation laws in galaxies by combining a…”
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How Well Can We Measure the Stellar Mass of a Galaxy: The Impact of the Assumed Star Formation History Model in SED Fitting by Lower, Sidney, Narayanan, Desika, Leja, Joel, Johnson, Benjamin D., Conroy, Charlie, Davé, Romeel

“…Abstract The primary method for inferring the stellar mass ( M * ) of a galaxy is through spectral energy distribution (SED) modeling. However, the technique…”
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Hot Dust in Panchromatic SED Fitting: Identification of Active Galactic Nuclei and Improved Galaxy Properties by Leja, Joel, Johnson, Benjamin D., Conroy, Charlie, Dokkum, Pieter van

“…Forward modeling of the full galaxy SED is a powerful technique, providing self-consistent constraints on stellar ages, dust properties, and metallicities…”
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All-sky dynamical response of the Galactic halo to the Large Magellanic Cloud by Conroy, Charlie, Naidu, Rohan P., Garavito-Camargo, Nicolás, Besla, Gurtina, Zaritsky, Dennis, Bonaca, Ana, Johnson, Benjamin D.

“…Gravitational interactions between the Large Magellanic Cloud (LMC) and the stellar and dark matter halo of the Milky Way are expected to give rise to…”
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An Older, More Quiescent Universe from Panchromatic SED Fitting of the 3D-HST Survey by Leja, Joel, Johnson, Benjamin D., Conroy, Charlie, Dokkum, Pieter van, Speagle, Joshua S., Brammer, Gabriel, Momcheva, Ivelina, Skelton, Rosalind, Whitaker, Katherine E., Franx, Marijn, Nelson, Erica J.

“…Galaxy observations are influenced by many physical parameters: stellar masses, star formation rates (SFRs), star formation histories (SFHs), metallicities,…”
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A New Census of the 0.2 < z < 3.0 Universe. I. The Stellar Mass Function by Leja, Joel, Speagle, Joshua S., Johnson, Benjamin D., Conroy, Charlie, van Dokkum, Pieter, Franx, Marijn

“…There has been a long-standing factor-of-two tension between the observed star formation rate density and the observed stellar mass buildup after z ∼ 2…”
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CIRCUMSTELLAR DUST AROUND AGB STARS AND IMPLICATIONS FOR INFRARED EMISSION FROM GALAXIES by Villaume, Alexa, Conroy, Charlie, Johnson, Benjamin D.

“…ABSTRACT Stellar population synthesis (SPS) models are used to infer many galactic properties including star formation histories, metallicities, and stellar…”
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Spatially resolved star formation and inside-out quenching in the TNG50 simulation and 3D-HST observations by Nelson, Erica J, Tacchella, Sandro, Diemer, Benedikt, Leja, Joel, Hernquist, Lars, Whitaker, Katherine E, Weinberger, Rainer, Pillepich, Annalisa, Nelson, Dylan, Terrazas, Bryan A, Nevin, Rebecca, Brammer, Gabriel B, Burkhart, Blakesley, Cochrane, Rachel K, van Dokkum, Pieter, Johnson, Benjamin D, Marinacci, Federico, Mowla, Lamiya, Pakmor, Rüdiger, Skelton, Rosalind E, Speagle, Joshua, Springel, Volker, Torrey, Paul, Vogelsberger, Mark, Wuyts, Stijn

“…ABSTRACT We compare the star-forming main sequence (SFMS) of galaxies – both integrated and resolved on 1 kpc scales – between the high-resolution TNG50…”
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A Model Connecting Galaxy Masses, Star Formation Rates, and Dust Temperatures across Cosmic Time by Imara, Nia, Loeb, Abraham, Johnson, Benjamin D., Conroy, Charlie, Behroozi, Peter

“…We investigate the evolution of dust content in galaxies from redshifts z = 0 to z = 9.5. Using empirically motivated prescriptions, we model galactic-scale…”
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Stellar and Nebular Diagnostics in the Ultraviolet for Star-forming Galaxies by Byler, Nell, Dalcanton, Julianne J., Conroy, Charlie, Johnson, Benjamin D., Levesque, Emily M., Berg, Danielle A.

“…There is a long history of using optical emission and absorption lines to constrain the metallicity and ionization parameters of gas in galaxies. However,…”
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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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Rapid Quenching of Galaxies at Cosmic Noon by Park, Minjung, Belli, Sirio, Conroy, Charlie, Tacchella, Sandro, Leja, Joel, Cutler, Sam E., Johnson, Benjamin D., Nelson, Erica J., Emami, Razieh

“…Abstract The existence of massive quiescent galaxies at high redshift seems to require rapid quenching, but it is unclear whether all quiescent galaxies have…”
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Inferring More from Less: Prospector as a Photometric Redshift Engine in the Era of JWST by Wang, Bingjie, Leja, Joel, Bezanson, Rachel, Johnson, Benjamin D., Khullar, Gourav, Labbé, Ivo, Price, Sedona H., Weaver, John R., Whitaker, Katherine E.

“…Abstract The advent of the James Webb Space Telescope (JWST) signals a new era in exploring galaxies in the high- z universe. Current and upcoming JWST imaging…”
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No Top-heavy Stellar Initial Mass Function Needed: The Ionizing Radiation of GS9422 Can Be Powered by a Mixture of an Active Galactic Nucleus and Stars by Li, Yijia, Leja, Joel, Johnson, Benjamin D., Tacchella, Sandro, Naidu, Rohan P.

“…Abstract JWST is producing high-quality rest-frame optical and UV spectra of faint galaxies at z > 4 for the first time, challenging models of galaxy and…”
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Modeling the High-energy Ionizing Output from Simple Stellar and X-Ray Binary Populations by Garofali, Kristen, Basu-Zych, Antara R., Johnson, Benjamin D., Tzanavaris, Panayiotis, Jaskot, Anne, Richardson, Chris T., Lehmer, Bret D., Yukita, Mihoko, Hodges-Kluck, Edmund, Hornschemeier, Ann, Ptak, Andrew, Vulic, Neven

“…Abstract We present a methodology for modeling the joint ionizing impact due to a “simple X-ray population” (SXP) and its corresponding simple stellar…”
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