Search Results - "Dalcanton, Julianne"

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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Fast and inefficient star formation due to short-lived molecular clouds and rapid feedback by Kruijssen, J. M. Diederik, Schruba, Andreas, Chevance, Mélanie, Longmore, Steven N., Hygate, Alexander P. S., Haydon, Daniel T., McLeod, Anna F., Dalcanton, Julianne J., Tacconi, Linda J., van Dishoeck, Ewine F.

“…The physics of star formation and the deposition of mass, momentum and energy into the interstellar medium by massive stars (‘feedback’) are the main…”
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THE STAR FORMATION HISTORIES OF LOCAL GROUP DWARF GALAXIES. I. HUBBLE SPACE TELESCOPE/WIDE FIELD PLANETARY CAMERA 2 OBSERVATIONS by Weisz, Daniel R, Dolphin, Andrew E, Skillman, Evan D, Holtzman, Jon, Gilbert, Karoline M, Dalcanton, Julianne J, Williams, Benjamin F

“…We present uniformly measured star formation histories (SFHs) of 40 Local Group (LG) dwarf galaxies based on color-magnitude diagram (CMD) analysis from…”
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The Metallicity of Galaxy Disks: Infall versus Outflow by Dalcanton, Julianne J

“…Both gas accretion (infall) and winds (outflow) change a galaxy's metallicity and gas fraction, lowering the effective yield. Low effective yields in galaxies…”
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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 by Rosenfield, Philip, Marigo, Paola, Girardi, Leo, Dalcanton, Julianne J, Bressan, Alessandro, Williams, Benjamin F, Dolphin, Andrew

“…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 STAR FORMATION HISTORIES OF LOCAL GROUP DWARF GALAXIES. II. SEARCHING FOR SIGNATURES OF REIONIZATION by Weisz, Daniel R, Dolphin, Andrew E, Skillman, Evan D, Holtzman, Jon, Gilbert, Karoline M, Dalcanton, Julianne J, Williams, Benjamin F

“…We search for signatures of reionization in the star formation histories (SFHs) of 38 Local Group dwarf galaxies (10 super(4) < M sub([sstarf]) < 10 super(9) M…”
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EXPLORING SYSTEMATIC EFFECTS IN THE RELATION BETWEEN STELLAR MASS, GAS PHASE METALLICITY, AND STAR FORMATION RATE by Telford, O. Grace, Dalcanton, Julianne J., Skillman, Evan D., Conroy, Charlie

“…ABSTRACT There is evidence that the well-established mass-metallicity relation in galaxies is correlated with a third parameter: star formation rate (SFR). The…”
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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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Constraining the thermally pulsing asymptotic giant branch phase with resolved stellar populations in the Small Magellanic Cloud by Pastorelli, Giada, Marigo, Paola, Girardi, Léo, Chen, Yang, Rubele, Stefano, Trabucchi, Michele, Aringer, Bernhard, Bladh, Sara, Bressan, Alessandro, Montalbán, Josefina, Boyer, Martha L, Dalcanton, Julianne J, Eriksson, Kjell, Groenewegen, Martin A T, Höfner, Susanne, Lebzelter, Thomas, Nanni, Ambra, Rosenfield, Philip, Wood, Peter R, Cioni, Maria-Rosa L

“…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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Panchromatic Hubble Andromeda Treasury. XVIII. The High-mass Truncation of the Star Cluster Mass Function by Johnson, L. Clifton, Seth, Anil C., Dalcanton, Julianne J., Beerman, Lori C., Fouesneau, Morgan, Weisz, Daniel R., Bell, Timothy A., Dolphin, Andrew E., Sandstrom, Karin, Williams, Benjamin F.

“…We measure the mass function for a sample of 840 young star clusters with ages between 10 and 300 Myr observed by the Panchromatic Hubble Andromeda Treasury…”
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THE STAR FORMATION HISTORIES OF LOCAL GROUP DWARF GALAXIES. III. CHARACTERIZING QUENCHING IN LOW-MASS GALAXIES by Weisz, Daniel R, Dolphin, Andrew E, Skillman, Evan D, Holtzman, Jon, Gilbert, Karoline M, Dalcanton, Julianne J, Williams, Benjamin F

“…We explore the quenching of low-mass galaxies (10 super(4) [<, ~] M[lowstar] [<, ~] 10 super(8) M sub([middot in circle])) as a function of lookback time using…”
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A NEW GENERATION OF PARSEC-COLIBRI STELLAR ISOCHRONES INCLUDING THE TP-AGB PHASE by Marigo, Paola, Girardi, Léo, Bressan, Alessandro, Rosenfield, Philip, Aringer, Bernhard, Chen, Yang, Dussin, Marco, Nanni, Ambra, Pastorelli, Giada, Rodrigues, Thaíse S., Trabucchi, Michele, Bladh, Sara, Dalcanton, Julianne, Groenewegen, Martin A. T., Montalbán, Josefina, Wood, Peter R.

“…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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Constraining the thermally pulsing asymptotic giant branch phase with resolved stellar populations in the Large Magellanic Cloud by Pastorelli, Giada, Marigo, Paola, Girardi, Léo, Aringer, Bernhard, Chen, Yang, Rubele, Stefano, Trabucchi, Michele, Bladh, Sara, Boyer, Martha L, Bressan, Alessandro, Dalcanton, Julianne J, Groenewegen, Martin A T, Lebzelter, Thomas, Mowlavi, Nami, Chubb, Katy L, Cioni, Maria-Rosa L, de Grijs, Richard, Ivanov, Valentin D, Nanni, Ambra, van Loon, Jacco Th, Zaggia, Simone

“…ABSTRACT Reliable models of the thermally pulsing asymptotic giant branch (TP-AGB) phase are of critical importance across astrophysics, including our…”
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Stellar Feedback and Resolved Stellar IFU Spectroscopy in the Nearby Spiral Galaxy NGC 300 by McLeod, Anna F., Kruijssen, J. M. Diederik, Weisz, Daniel R., Zeidler, Peter, Schruba, Andreas, Dalcanton, Julianne J., Longmore, Steven N., Chevance, Mélanie, Faesi, Christopher M., Byler, Nell

“…We present MUSE integral field unit (IFU) observations of five individual H ii regions in two giant star-forming complexes in the low-metallicity, nearby dwarf…”
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Constraints for the Progenitor Masses of Historic Core-collapse Supernovae by Williams, Benjamin F., Hillis, Tristan J., Murphy, Jeremiah W., Gilbert, Karoline, Dalcanton, Julianne J., Dolphin, Andrew E.

“…We age-date the stellar populations associated with 12 historic nearby core-collapse supernovae (CCSNe) and two supernova impostors; from these ages, we infer…”
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PHAT. XIX. The Ancient Star Formation History of the M31 Disk by Williams, Benjamin F., Dolphin, Andrew E., Dalcanton, Julianne J., Weisz, Daniel R., Bell, Eric F., Lewis, Alexia R., Rosenfield, Philip, Choi, Yumi, Skillman, Evan, Monachesi, Antonela

“…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. XX. The Disk of M31 is Thick by Dalcanton, Julianne J., Bell, Eric F., Choi, Yumi, Dolphin, Andrew E., Fouesneau, Morgan, Girardi, Léo, Hogg, David W., Seth, Anil C., Williams, Benjamin F.

“…Abstract We present a new approach to measuring the thickness of a partially face-on stellar disk, using dust geometry. In a moderately-inclined disk galaxy,…”
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A Multiwavelength Classification and Study of Red Supergiant Candidates in NGC 6946 by Johnson, Jared R., Koplitz, Brad, Williams, Benjamin F., Dalcanton, Julianne J., Dolphin, Andrew, Girardi, Léo

“…Abstract We have combined resolved stellar photometry from Hubble Space Telescope (HST), Spitzer, and Gaia to identify red supergiant (RSG) candidates in NGC…”
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Spatially Resolved Metal Loss from M31 by Telford, O. Grace, Werk, Jessica K., Dalcanton, Julianne J., Williams, Benjamin F.

“…As galaxies evolve, they must enrich and exchange gas with the surrounding medium, but the timing of these processes and how much gas is involved remain poorly…”
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KPM: A Flexible and Data-driven K-process Model for Nucleosynthesis by Griffith, Emily J., Hogg, David W., Dalcanton, Julianne J., Hasselquist, Sten, Ratcliffe, Bridget, Ness, Melissa, Weinberg, David H.

“…Abstract The element abundance pattern found in Milky Way disk stars is close to two-dimensional, dominated by production from one prompt process and one…”
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