Zobrazeno 1 - 10
of 74
pro vyhledávání: '"W. Van Dyke Dixon"'
Publikováno v:
Journal of The Korean Astronomical Society. 42:145-153
We present measurements of diuse interstellar H 2 absorption lines in the continuum spectra of 10 early-type stars. The data were observed with the Berkeley Extreme and Far-Ultraviolet Spectrometer (BEFS) of the ORFEUS telescope on board the ORFEUS-S
Autor:
W. Van Dyke Dixon, Ravi Sankrit
Publikováno v:
The Astrophysical Journal. 686:1162-1173
We present new results from our survey of diffuse O VI-emitting gas in the interstellar medium with the Far Ultraviolet Spectroscopic Explorer (FUSE). Background observations obtained since 2005 have yielded 11 new O VI detections of 3 σ significanc
Autor:
W. Van Dyke Dixon, R. Sankrit
Publikováno v:
Publications of the Astronomical Society of the Pacific. 119:284-291
Observations of interstellar regions in the Large Magellanic Cloud (LMC) obtained serendipitously by the Far Ultraviolet Spectroscopic Explorer (FUSE) have revealed O vi λ1032 emission from several superbubbles and from one region not associated wit
Publikováno v:
The Astrophysical Journal. 655:940-945
We have calculated synthetic interstellar cloud models to investigate the formation and destruction of high-J molecular hydrogen in photodissociation regions. The effects of five physical parameters (the incident ultraviolet [UV] intensity, H2 column
Publikováno v:
The Astrophysical Journal. 647:328-349
We present a survey of diffuse O VI emission in the interstellar medium obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE). Spanning 5.5 years of FUSE observations, from launch through 2004 December, our data set consists of 2925 exposur
Publikováno v:
The Astrophysical Journal. 606:L143-L146
A survey of diffuse interstellar sight lines observed with the Far Ultraviolet Spectroscopic Explorer has led to the serendipitous discovery of a high-ionization nebula around the hot white dwarf KPD 0005+5106. The nebula has an OVI 1032A surface bri
Publikováno v:
The Astrophysical Journal. 600:L43-L46
We report observations of the hot post-asymptotic giant branch star ZNG 1 in the globular cluster M5 (NGC 5904) with the Far Ultraviolet Spectroscopic Explorer (FUSE). From the resulting spectrum, we derive an effective temperature T_eff = 44300 +/-
Publikováno v:
The Astrophysical Journal. 586:L53-L56
Background observations obtained with the Far Ultraviolet Spectroscopic Explorer toward l = 954, b = 361 show O VI λλ1032, 1038 in emission. This sight line probes a region of stronger than average soft X-ray emission in the direction of high-veloc
Autor:
Dae-Hee Lee, Uk-Won Nam, Wonyong Han, Mark Hurwitz, W. Van Dyke Dixon, Kwangsun Ryu, S. R. Federman, Kyoung-Wook Min, Hyunsoo Chung
Publikováno v:
The Astrophysical Journal. 575:234-239
We analyze H2 and CO absorption along the line of sight toward HD 37903 over the 1045-1060 A and 1086-1102 A wavelength regions, which were observed by the Berkeley Extreme and Far-Ultraviolet Spectrometer on the Orbiting and Retrievable Far and Extr
Publikováno v:
The Astrophysical Journal. 552:L69-L72
We report the detection of diffuse O VI λλ1032, 1038 emission in a 29 ks observation centered on the Coma Cluster (l = 57.6, b = +88.0) and an 11 ks observation toward Virgo (l = 284.2, b = +74.5) through the 30'' × 30'' aperture of the Far-Ultrav