Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Nancy D. Morrison"'
Publikováno v:
Vol. 53, Issue 2. 53
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a484d51f7ea43380282efcfda4575017
https://doi.org/10.3847/25c2cfeb.c0db66d0
https://doi.org/10.3847/25c2cfeb.c0db66d0
Autor:
Luqian Wang, Jon E. Bjorkman, A. D. Bratcher, Alex C. Carciofi, Robert Klement, Kevin K. Hardegree-Ullman, Karen S. Bjorkman, Cody Gerhartz, Nicholas A. Dulaney, Noel D. Richardson, Jesica Trucks, Jennifer J. Greco, Wayne L. Oswald, Nancy D. Morrison, Ludwik Lembryk
The late-type Be star $\beta$ CMi is remarkably stable compared to other Be stars that have been studied. This has led to a realistic model of the outflowing Be disk by Klement et al. These results showed that the disk is likely truncated at a finite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63e6742e533e9fbfb06192e58093bc4d
http://arxiv.org/abs/1701.05201
http://arxiv.org/abs/1701.05201
Autor:
Nancy D. Morrison, Alexander W. Fullerton, M. Blake, Lida Oskinova, Raman K. Prinja, Derck Massa, David A. Bohlender, Wojciech Pych
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 441:2173-2180
We analyze a 162 ks HETG Chandra observation of the O7.5 III(n)((f)) star xi Per, together with contemporaneous H alpha observations. The X-ray spectrum of this star is similar to other single O stars, and not pathological in any way. Its UV wind lin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d05a02f95c104caa963c46c47229c5dd
https://doi.org/10.1093/mnras/stu565
https://doi.org/10.1093/mnras/stu565
Autor:
A. E. Tarasov, John P. Wisniewski, Anatoly S. Miroshnichenko, Nancy D. Morrison, M. V. Yushkin, Nadine Manset, Valentina G. Klochkova, M. P. Mitskevich, G. A. Chountonov, M. A. Pogodin, Karen S. Bjorkman
Publikováno v:
Astronomy & Astrophysics. 417:715-723
The results of high-resolution spectroscopy of the Herbig Be star HD 200775 obtained within the framework of a cooperative observing programme in 2000–2002 are presented. A new high-activity phase of the object’s Ha line occurred in the middle of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8ec4c3d89219b592927388c8c2016b7
https://doi.org/10.1051/0004-6361:20031783
https://doi.org/10.1051/0004-6361:20031783
Autor:
D. C. Knauth, Nancy D. Morrison, Anatoly S. Miroshnichenko, C. Buil, Karen S. Bjorkman, Mónica Grosso, Hugo Levato, John P. Wisniewski, Nadine Manset, E. Pollmann
Publikováno v:
Astronomy & Astrophysics. 408:305-311
We present the results of a spectroscopic monitoring program of the binary system Delta Scorpii, whose primary became a Be star after the last periastron encounter in the Summer of 2000. The observations cover a period of 2 years (March 2001–June 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca42c2fa05cdfd8347b494f6947182f0
https://doi.org/10.1051/0004-6361:20030965
https://doi.org/10.1051/0004-6361:20030965
Autor:
John P. Wisniewski, Nancy D. Morrison, Karen S. Bjorkman, Anatoly S. Miroshnichenko, Amanda C. Gault, Jennifer L. Hoffman, Marilyn R. Meade, Jason M. Nett
Publikováno v:
The Astrophysical Journal. 588:486-493
The spectroscopic and spectropolarimetric variability of the peculiar variable V838 Monocerotis during the brighter phases of its multiple outbursts in 2002 is presented. Significant line profile variability of H alpha and Si II 6347.10 [angstrom] &
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20ace8c4ed0aa5bad56c9e0557dc6913
https://doi.org/10.1086/373897
https://doi.org/10.1086/373897
Autor:
F. A. Musaev, Robert P. Stefanik, Andrea K. Dupree, Guillermo Torres, I. V. Ilyin, Hans Nieuwenhuijzen, C. de Jager, Nancy D. Morrison, G. Israelian, A. Lobel
Publikováno v:
The Astrophysical Journal. 583:923-954
We present an overview of the spectral variability of the peculiar F-type hypergiant Rho Cas, obtained from our long-term monitoring campaigns over the past 8.5 years with four spectrographs in the northern hemisphere. Between 2000 June and September
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::494934191dfcf403daef281e09027725
https://doi.org/10.1086/345503
https://doi.org/10.1086/345503
Publikováno v:
Astronomy & Astrophysics. 376:898-906
We studied the long-term spectral and photometric behaviour of P Cygni over the 13.8 year interval from March 1985 to January 1999. The UBV photometry reveals a slow (7.4-year), low-amplitude (0.1 mag) variation in V in which the star becomes redder
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89590260875c22eebc61c2bf70b7be29
https://doi.org/10.1051/0004-6361:20010668
https://doi.org/10.1051/0004-6361:20010668
Autor:
William J. Fischer, Nancy D. Morrison
Publikováno v:
Publications of the Astronomical Society of the Pacific. 113:821-828
HD 223960, an A0 Ia-type supergiant in the Cas OB5 association, is unusual among Galactic supergiants of its class in having an Hα profile with double-peaked emission entirely above the continuum. We analyzed 12 high-resolution echelle spectra obtai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d1e23f7d21828a9b355cf52bfbed6a2
https://doi.org/10.1086/322141
https://doi.org/10.1086/322141