Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Fullerton, Alex W."'
Autor:
Parsons, Timothy N., Prinja, Raman K., Bernini-Peron, Matheus, Fullerton, Alex W., Massa, Derck L., Oskinova, Lidia M., Pauli, Daniel, Sander, Andreas A. C., Rickard, Matthew J.
Accurate determination of mass-loss rates from massive stars is important to understanding stellar and galactic evolution and enrichment of the interstellar medium. Large-scale structure and variability in stellar winds have significant effects on ma
Externí odkaz:
http://arxiv.org/abs/2401.01240
Autor:
Naze, Yael, Sundqvist, Jon O., Fullerton, Alex W., ud-Doula, Asif, Wade, Gregg A., Rauw, Gregor, Walborn, Nolan R.
Publikováno v:
MNRAS, 452, 2641-2653 (2015)
The Of?p star CPD -28 2561 was monitored at high energies with XMM-Newton and HST. In X-rays, this magnetic oblique rotator displays bright and hard emission that varies by ~55% with rotational phase. These changes occur in phase with optical variati
Externí odkaz:
http://arxiv.org/abs/1506.08572
Autor:
Artigau, Étienne, Sivaramakrishnan, Anand, Greenbaum, Alexandra Z., Doyon, René, Goudfrooij, Paul, Fullerton, Alex W., Lafrenière, David, Volk, Kevin, Albert, Loïc, Martel, André, Ford, K. E. Saavik, McKernan, Barry L.
JWST's Near-Infrared Imager and Slitless Spectrograph (NIRISS) includes an Aperture Masking Interferometry (AMI) mode designed to be used between 2.7{\mu}m and 4.8{\mu}m. At these wavelengths, it will have the highest angular resolution of any mode o
Externí odkaz:
http://arxiv.org/abs/1406.6882
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Cohen, David H., Wollman, Emma E., Leutenegger, Maurice A., Sundqvist, Jon O., Fullerton, Alex W., Zsargo, Janos, Owocki, Stanley P.
We quantitatively investigate the extent of wind absorption signatures in the X-ray grating spectra of all non-magnetic, effectively single O stars in the Chandra archive via line profile fitting. Under the usual assumption of a spherically symmetric
Externí odkaz:
http://arxiv.org/abs/1401.7995
Autor:
Cohen, David H., Gagné, Marc, Leutenegger, Maurice A., MacArthur, James P., Wollman, Emma E., Sundqvist, Jon O., Fullerton, Alex W., Owocki, Stanley P.
We present analysis of both the resolved X-ray emission line profiles and the broadband X-ray spectrum of the O2 If* star HD 93129A, measured with the Chandra HETGS. This star is among the earliest and most massive stars in the Galaxy, and provides a
Externí odkaz:
http://arxiv.org/abs/1104.4786
Autor:
Parsons, Timothy N, Prinja, Raman K, Bernini-Peron, Matheus, Fullerton, Alex W, Massa, Derck L, Oskinova, Lidia M, Pauli, Daniel, Rickard, Matthew J, Sander, Andreas A C
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Feb2024, Vol. 527 Issue 4, p11422-11457, 36p
Autor:
Smith, Myron A., Fullerton, Alex W.
Theta^1 Ori is thought to be a hot analog of Bp variables because its optical and UV line and X-ray continuum fluxes modulate regularly over the magnetic/rotational period. A flattened magnetosphere surrounding co-rotates with these stars, producing
Externí odkaz:
http://arxiv.org/abs/astro-ph/0412150
We use ultraviolet space-based (FUSE, HST) and optical/IR ground-based (2.3m MSSSO, NTT) spectroscopy to determine the physical parameters of six WC4-type Wolf-Rayet stars in the Large Magellanic Cloud. Stellar parameters are revised significantly re
Externí odkaz:
http://arxiv.org/abs/astro-ph/0206233
Autor:
Hoopes, Charles G., Sembach, Kenneth R., Howk, J. Christopher, Savage, Blair D., Fullerton, Alex W.
We present the results of a FUSE survey of O VI 1031.93 Angstrom and 1037.62 Angstrom absorption toward 18 OB stars in the Small Magellanic Cloud (SMC). We detect O VI along every sight line. The average value of the O VI column density in the SMC is
Externí odkaz:
http://arxiv.org/abs/astro-ph/0201351