Search Results - "Götberg, Ylva"
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Cool, Luminous, and Highly Variable Stars in the Magellanic Clouds. II. Spectroscopic and Environmental Analysis of Thorne–Żytkow Object and Super-AGB Star Candidates
Published in The Astrophysical journal (01-01-2023)“…Abstract In previous work, we identified a population of 38 cool and luminous variable stars in the Magellanic Clouds and examined 11 in detail in order to…”
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2
Binary Yellow Supergiants in the Magellanic Clouds. I. Photometric Candidate Identification
Published in The Astrophysical journal (01-11-2024)“…Abstract Recent works have constrained the binary fraction of evolved populations of massive stars in local galaxies such as red supergiants and Wolf–Rayet…”
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3
Delayed Photons from Binary Evolution Help Reionize the Universe
Published in The Astrophysical journal (01-09-2020)“…High-resolution numerical simulations including feedback and aimed at calculating the escape fraction (fesc) of hydrogen-ionizing photons often assume stellar…”
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4
Tidal Disruption Events from Stripped Stars
Published in Astrophysical journal. Letters (01-09-2024)“…Abstract Observations of tidal disruption events (TDEs) show signs of nitrogen enrichment reminiscent of other astrophysical sources such as active galactic…”
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5
Extreme isolation of WN3/O3 stars and implications for their evolutionary origin as the elusive stripped binaries
Published in Monthly notices of the Royal Astronomical Society (21-03-2018)“…Abstract Recent surveys of the Magellanic Clouds have revealed a subtype of Wolf–Rayet (WR) star with peculiar properties. WN3/O3 spectra exhibit both WR-like…”
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6
Spectral Signatures of Population iii and Envelope-stripped Stars in Galaxies at the Epoch of Reionization
Published in The Astrophysical journal (01-09-2021)“…Abstract While most simulations of the epoch of reionization have focused on single-stellar populations in star-forming dwarf galaxies, products of binary…”
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7
Pre-explosion Properties of Helium Star Donors to Thermonuclear Supernovae
Published in The Astrophysical journal (01-12-2021)“…Abstract Helium star–carbon-oxygen white dwarf (CO WD) binaries are potential single-degenerate progenitor systems of thermonuclear supernovae. Revisiting a…”
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8
A Panchromatic Study of Massive Stars in the Extremely Metal-poor Local Group Dwarf Galaxy Leo A
Published in The Astrophysical journal (01-12-2022)“…Abstract We characterize massive stars ( M > 8 M ⊙ ) in the nearby ( D ∼ 0.8 Mpc) extremely metal-poor ( Z ∼ 5% Z ⊙ ) galaxy Leo A using Hubble Space Telescope…”
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9
Bringing Stellar Evolution and Feedback Together: Summary of Proposals from the Lorentz Center Workshop
Published in Publications of the Astronomical Society of the Pacific (01-02-2023)“…Abstract Stars strongly impact their environment, and shape structures on all scales throughout the universe, in a process known as “feedback.” Due to the…”
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A Panchromatic Study of Massive Stars in the Extremely Metal-poor Local Group Dwarf Galaxy Leo A This paper includes data gathered with the 10 m Keck Telescopes located at W. M. Keck Observatory, Hawaii and with the 6.5 m Multiple Mirror Telescope (MMT) located at Mt. Hopkins, Arizona
Published in The Astrophysical journal (01-12-2022)Get full text
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Combining REBOUND and MESA: Dynamical Evolution of Planets Orbiting Interacting Binaries
Published 25-10-2024“…Although planets have been found orbiting binary systems, whether they can survive binary interactions is debated. While the tightest-orbit binaries should…”
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12
Tidal Disruption Events from Stripped Stars
Published 06-06-2024“…Observations of tidal disruption events (TDEs) show signs of Nitrogen enrichment reminiscent of other astrophysical sources such as active galactic nuclei…”
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13
Spectral Signatures of Population III and Envelope-stripped Stars in Galaxies at the Epoch of Reionization
Published 10-08-2021“…While most simulations of the epoch of reionization have focused on single-stellar populations in star-forming dwarf galaxies, products of binary evolution are…”
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14
Pre-Explosion Properties of Helium Star Donors to Thermonuclear Supernovae
Published 30-09-2021“…Helium star - carbon-oxygen white dwarf (CO WD) binaries are potential single-degenerate progenitor systems of thermonuclear supernovae. Revisiting a set of…”
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15
Binary-Stripped Stars as Core-Collapse Supernovae Progenitors
Published 07-04-2021“…Most massive stars experience binary interactions in their lifetimes that can alter both the surface and core structure of the stripped star with significant…”
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16
X-Shooting ULLYSES: Massive Stars at Low Metallicity
Published 30-04-2024“…ESO Messenger, 2024 The Hubble Space Telescope has devoted 500 orbits to observing 250 massive stars with low metallicity in the ultraviolet (UV) range within…”
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17
The Detection and Characterization of Be+sdO Binaries from HST/STIS FUV Spectroscopy
Published 25-03-2021“…The B-emission line stars are rapid rotators that were probably spun up by mass and angular momentum accretion through mass transfer in an interacting binary…”
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18
A Panchromatic Study of Massive Stars in the Extremely Metal-Poor Local Group Dwarf Galaxy Leo A
Published 28-12-2022“…We characterize massive stars (M>8 M_sun) in the nearby (D~0.8 Mpc) extremely metal-poor (Z~5% Z_sun) galaxy Leo A using Hubble Space Telescope ultra-violet…”
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19
Cool, Luminous, and Highly Variable Stars in the Magellanic Clouds. II: Spectroscopic and Environmental Analysis of Thorne-\.Zytkow Object and Super-AGB Star Candidates
Published 22-11-2022“…In previous work we identified a population of 38 cool and luminous variable stars in the Magellanic Clouds and examined 11 in detail in order to classify them…”
Get full text
Journal Article -
20
Bringing Stellar Evolution & Feedback Together: Summary of proposals from the Lorentz Center Workshop, 2022
Published 31-01-2023“…Stars strongly impact their environment, and shape structures on all scales throughout the universe, in a process known as ``feedback''. Due to the complexity…”
Get full text
Journal Article