Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Early-type emission stars"'
We report the results of our study of magnetic fields in a sample of 15 Be stars using spectropolarimetric data obtained at the European Southern Observatory with the multi-mode instrument FORS1 installed at the 8m Kueyen telescope. We detect weak ph
Externí odkaz:
http://arxiv.org/abs/0711.2085
Autor:
David P. Huenemoerder, Pragati Pradhan, Claude R. Canizares, Sean Gunderson, Richard Ignace, Joy S. Nichols, A. M. T. Pollock, Norbert S. Schulz, Dustin K. Swarm, José M. Torrejón
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 2, p L23 (2024)
High-resolution X-ray spectra of π Aqr, a γ Cas-type star, obtained with the Chandra/HETG spectrometer, revealed emission lines of H-like ions of Mg, Si, S, and Fe; a strong, hard continuum; and a lack of He-like ions, indicating the presence of ve
Externí odkaz:
https://doaj.org/article/f228a35885aa4fb19cfa5a1649ab9b5f
Akademický článek
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Publikováno v:
The Astrophysical Journal Supplement Series, Vol 275, Iss 2, p 24 (2024)
In this work, we update the catalog of OB stars based on the Large Sky Area Multi-Object Fiber Spectroscopic Telescope data release 7 and modify the OB stars’ selection criteria in spectral line indices’ space. The new catalog includes 37,778 spe
Externí odkaz:
https://doaj.org/article/9eb1f60d2aa2494d948440532df3cdb2
Autor:
ud-Doula, A.1 (AUTHOR) asif@psu.edu, Cheung, M. C. M.2 (AUTHOR), David-Uraz, A.3,4 (AUTHOR), Erba, C.5 (AUTHOR), Folsom, C. P.6 (AUTHOR), Gayley, K.7 (AUTHOR), Nazé, Y.8 (AUTHOR), Neiner, C.9 (AUTHOR), Petit, V.10 (AUTHOR), Prinja, R.11 (AUTHOR), Shultz, M. E.10 (AUTHOR), Sudnik, N.12 (AUTHOR), Vink, J. S.13 (AUTHOR), Wade, G. A.14 (AUTHOR)
Publikováno v:
Astrophysics & Space Science. Dec2022, Vol. 367 Issue 12, p1-19. 19p.
Autor:
Shultz, M. E.1 (AUTHOR) mshultz@udel.edu, Casini, R.2 (AUTHOR), Cheung, M. C. M.3 (AUTHOR), David-Uraz, A.4,5 (AUTHOR), del Pino Alemán, T.6,7 (AUTHOR), Erba, C.8 (AUTHOR), Folsom, C. P.9 (AUTHOR), Gayley, K.10 (AUTHOR), Ignace, R.8 (AUTHOR), Keszthelyi, Z.11 (AUTHOR), Kochukhov, O.12 (AUTHOR), Nazé, Y.13 (AUTHOR), Neiner, C.14 (AUTHOR), Oksala, M.15 (AUTHOR), Petit, V.1 (AUTHOR), Scowen, P. A.16 (AUTHOR), Sudnik, N.17 (AUTHOR), ud-Doula, A.18 (AUTHOR), Vink, J. S.19 (AUTHOR), Wade, G. A.20,21 (AUTHOR)
Publikováno v:
Astrophysics & Space Science. Dec2022, Vol. 367 Issue 12, p1-15. 15p.
We report the results of our study of magnetic fields in a sample of 15 Be stars using spectropolarimetric data obtained at the European Southern Observatory with the multi-mode instrument FORS1 installed at the 8m Kueyen telescope. We detect weak ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c38815c923a527a80a114db2c1e178e
Publikováno v:
Galaxies, Vol 11, Iss 1, p 37 (2023)
With the aim of better understanding the physical conditions under which Be stars form and evolve, it is imperative to further investigate whether poorly studied young open clusters host Be stars. In this work, we explain how data from Gaia DR2 and D
Externí odkaz:
https://doaj.org/article/bddff45ec0f640cd8a97b93ab549b937
Autor:
Tsvetanka Radoslavova
Publikováno v:
Astronomische Nachrichten: A Journal on all Fields of Astronomy. 310:223-226
The surface distribution of the luminous and early-type emission stars in a Milky Way region in Vulpecula is obtained. The results show a discrepancy between the places of greatest concentration of such kinds of stars and those indicated in literatur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae676200998279347c114a74798ecdda
https://doi.org/10.1002/asna.2113100313
https://doi.org/10.1002/asna.2113100313