Search Results - "Rosenfield, Philip"
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New PARSEC evolutionary tracks of massive stars at low metallicity: testing canonical stellar evolution in nearby star-forming dwarf galaxies
Published in Monthly notices of the Royal Astronomical Society (21-12-2014)“…We extend the PARSEC library of stellar evolutionary tracks by computing new models of massive stars, from 14 to 350 M⊙. The input physics is the same used in…”
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A NEW GENERATION OF PARSEC-COLIBRI STELLAR ISOCHRONES INCLUDING THE TP-AGB PHASE
Published in The Astrophysical journal (20-01-2017)“…We introduce a new generation of PARSEC-COLIBRI stellar isochrones that includes a detailed treatment of the thermally pulsing asymptotic giant branch (TP-AGB)…”
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EVOLUTION OF THERMALLY PULSING ASYMPTOTIC GIANT BRANCH STARS. V. CONSTRAINING THE MASS LOSS AND LIFETIMES OF INTERMEDIATE-MASS, LOW-METALLICITY AGB STARS
Published in The Astrophysical journal (10-05-2016)“…ABSTRACT Thermally pulsing asymptotic giant branch (TP-AGB) stars are relatively short lived (less than a few Myr), yet their cool effective temperatures, high…”
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THE CONTRIBUTION OF TP-AGB AND RHeB STARS TO THE NEAR-IR LUMINOSITY OF LOCAL GALAXIES: IMPLICATIONS FOR STELLAR MASS MEASUREMENTS OF HIGH-REDSHIFT GALAXIES
Published in The Astrophysical journal (20-03-2012)“…Using high spatial resolution Hubble Space Telescope WFC3 and Advanced Camera for Surveys imaging of resolved stellar populations, we constrain the…”
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The Cluster of Blue Stars Surrounding the M31 Nuclear Black Hole
Published in The Astrophysical journal (01-02-2012)“…We obtained U sub(330)- and B-band images of the M31 nucleus using the High Resolution Camera of the Advanced Camera for Surveys on board the Hubble Space…”
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THE INSIDIOUS BOOSTING OF THERMALLY PULSING ASYMPTOTIC GIANT BRANCH STARS IN INTERMEDIATE-AGE MAGELLANIC CLOUD CLUSTERS
Published in The Astrophysical journal (23-10-2013)Get full text
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Age Determinations of the Hyades, Praesepe, and Pleiades via MESA Models with Rotation
Published in The Astrophysical journal (10-08-2018)“…The Hyades, Praesepe, and Pleiades are well-studied stellar clusters that anchor important secondary stellar age indicators. Recent studies have shown that…”
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THE INSIDIOUS BOOSTING OF THERMALLY PULSING ASYMPTOTIC GIANT BRANCH STARS IN INTERMEDIATE-AGE MAGELLANIC CLOUD CLUSTERS
Published in The Astrophysical journal (10-11-2013)“…In this paper, we call attention to a particular evolutionary aspect, linked to the physics of stellar interiors, that in all probability is the main cause of…”
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Constraining the thermally pulsing asymptotic giant branch phase with resolved stellar populations in the Small Magellanic Cloud
Published in Monthly notices of the Royal Astronomical Society (01-06-2019)“…Abstract The thermally pulsing asymptotic giant branch (TP-AGB) experienced by low- and intermediate-mass stars is one of the most uncertain phases of stellar…”
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PHAT. XIX. The Ancient Star Formation History of the M31 Disk
Published in The Astrophysical journal (10-09-2017)“…We map the star formation history across M31 by fitting stellar evolution models to color-magnitude diagrams of each 83″ × 83″ (0.3 × 1.4 kpc, deprojected)…”
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THE PANCHROMATIC HUBBLE ANDROMEDA TREASURY. I. BRIGHT UV STARS IN THE BULGE OF M31
Published in The Astrophysical journal (20-08-2012)Get full text
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Combined Effects of Rotation and Age Spreads on Extended Main-Sequence Turn Offs
Published in The Astrophysical journal (20-12-2019)“…The extended main-sequence turn offs (eMSTOs) of several young to intermediate age clusters are examined in the Magellanic Clouds and the Milky Way. We explore…”
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The ACS Nearby Galaxy Survey Treasury. IX. Constraining Asymptotic Giant Branch Evolution with Old Metal-poor Galaxies
Published in The Astrophysical journal (01-12-2010)“…In an attempt to constrain evolutionary models of the asymptotic giant branch (AGB) phase at the limit of low masses and low metallicities, we have examined…”
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On the interpretation of sub-giant branch morphologies of intermediate-age star clusters with extended main sequence turnoffs
Published in Monthly notices of the Royal Astronomical Society (21-06-2015)“…High-quality photometry of many star clusters in the Magellanic Clouds with ages of 1–2 Gyr revealed main sequence turnoffs (MSTOs) that are significantly…”
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EVOLUTION OF THERMALLY PULSING ASYMPTOTIC GIANT BRANCH STARS. IV. CONSTRAINING MASS LOSS AND LIFETIMES OF LOW MASS, LOW METALLICITY AGB STARS
Published in The Astrophysical journal (20-07-2014)“…The evolution and lifetimes of thermally pulsating asymptotic giant branch (TP-AGB) stars suffer from significant uncertainties. In this work, we analyze the…”
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A New Approach to Convective Core Overshooting: Probabilistic Constraints from Color-Magnitude Diagrams of LMC Clusters
Published in The Astrophysical journal (01-06-2017)“…We present a framework to simultaneously constrain the values and uncertainties of the strength of convective core overshooting, metallicity, extinction,…”
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PHAT XX. AGB Stars and Other Cool Giants in M31 Star Clusters
Published in The Astrophysical journal (01-09-2020)“…Abstract The presence of asymptotic giant branch (AGB) stars in clusters provides key constraints for stellar models, as has been demonstrated with historical…”
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PANCHROMATIC HUBBLE ANDROMEDA TREASURY. XIV. THE PERIOD-AGE RELATIONSHIP OF CEPHEID VARIABLES IN M31 STAR CLUSTERS
Published in The Astrophysical journal (01-11-2015)“…ABSTRACT We present a sample of 11 M31 Cepheids in stellar clusters, derived from the overlap of the Panchromatic Hubble Andromeda Treasury cluster catalog and…”
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EVOLUTION OF THERMALLY PULSING ASYMPTOTIC GIANT BRANCH STARS. V. CONSTRAINING THE MASS LOSS AND LIFETIMES OF INTERMEDIATE-MASS, LOW-METALLICITY AGB STARS Based on observations made with the NASA/ESA Hubble Space Telescope, obtained from the Data Archive at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555
Published in The Astrophysical journal (06-05-2016)“…ABSTRACT Thermally pulsing asymptotic giant branch (TP-AGB) stars are relatively short lived (less than a few Myr), yet their cool effective temperatures, high…”
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THE PANCHROMATIC HUBBLE ANDROMEDA TREASURY. XVII. EXAMINING OBSCURED STAR FORMATION WITH SYNTHETIC ULTRAVIOLET FLUX MAPS IN M31
Published in The Astrophysical journal (01-01-2017)“…ABSTRACT We present synthetic far- and near-ultraviolet ( FUV and NUV ) maps of M31, both with and without dust reddening. These maps were constructed from…”
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