Výsledky vyhledávání - "Erin Aadland"

WO-type Wolf–Rayet Stars: The Last Hurrah of Massive Star Evolution*

Autor: Erin Aadland, Philip Massey, D. John Hillier, Nidia I. Morrell, Kathryn F. Neugent, J. J. Eldridge

Publikováno v: The Astrophysical Journal. 931:157

Are WO-type Wolf Rayet (WR) stars in the final stage of massive star evolution before core-collapse? Although WC- and WO-type WRs have very similar spectra, WOs show a much stronger O VI $\lambda \lambda$3811,34 emission-line feature. This has usuall

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5eb024268cafd07519f098da3ef79cf
https://doi.org/10.3847/1538-4357/ac66e7

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Asteroid lightcurves and detection, shape, and size biases in large-scale surveys

Autor: David E. Trilling, Samuel Navarro-Meza, Erin Aadland

Most asteroids are somewhat elongated and have non-zero lightcurve amplitudes. Such asteroids can be detected in large-scale sky surveys even if their mean magnitudes are fainter than the stated sensitivity limits. We explore the detection of elongat

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The Physical Parameters of Four WC-type Wolf–Rayet Stars in the Large Magellanic Cloud: Evidence of Evolution*

Autor: Erin Aadland, Philip Massey, D. John Hillier, Nidia Morrell

Publikováno v: The Astrophysical Journal. 924:44

We present a spectral analysis of four Large Magellanic Cloud (LMC) WC-type Wolf–Rayet (WR) stars (BAT99-8, BAT99-9, BAT99-11, and BAT99-52) to shed light on two evolutionary questions surrounding massive stars. The first is: are WO-type WR stars m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73b7e2ceefffe67c64253d80f6120b21
https://doi.org/10.3847/1538-4357/ac3426

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Shedding Light on the Isolation of Luminous Blue Variables

Autor: Maria R. Drout, Kathryn F. Neugent, Philip Massey, Erin Aadland

Publikováno v: The Astronomical Journal. 156:294

In the standard view of massive star evolution, luminous blue variables (LBVs) are transitional objects between the most massive O-type stars and Wolf-Rayet (WR) stars. With short lifetimes, these stars should all be found near one another. A recent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bea054ae3babe4214d24121c2db8bf3e
https://doi.org/10.3847/1538-3881/aaeb96

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RETURN OF THE KING: TIME-SERIES PHOTOMETRY OF FO AQUARII’S INITIAL RECOVERY FROM ITS UNPRECEDENTED 2016 LOW STATE

Publikováno v: The Astrophysical Journal. 833:93

In 2016 May, the intermediate polar FO~Aqr was detected in a low state for the first time in its observational history. We report time-resolved photometry of the system during its initial recovery from this faint state. Our data, which includes high-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a83e60c84b15d912e8d361e116c5943
https://doi.org/10.3847/1538-4357/833/1/93

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