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相关论文: Far-UV Observations of the Galactic Supersoft Bina…

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We have obtained spectroscopy with the Far Ultraviolet Spectroscopic Explorer (FUSE) of the supersoft X-ray binary RX J0513.9-6951 over a complete binary orbital cycle. The spectra show a hot continuum with extremely broad O VI emission and…

天体物理学 · 物理学 2009-11-07 J. B. Hutchings , K. Winter , D. Crampton , A. P. Cowley , P. C. Schmidtke

Far-ultraviolet spectra of LMC X-3 were taken covering photometric phases 0.47 to 0.74 in the 1.7-day orbital period of the black-hole binary (phase zero being superior conjunction of the X-ray source). The continuum is faint and flat, but…

天体物理学 · 物理学 2009-11-10 J. B. Hutchings , K. Winter , D. Crampton , A. P. Cowley , P. Schmidtke

Spectra of the magnetic white dwarf binary AM Her were obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) during three consecutive spacecraft orbits. These observations were split into 19 spectra of about 5 min duration (0.025P…

天体物理学 · 物理学 2007-05-23 J. B. Hutchings , A. W. Fullerton , A. P. Cowley , P. C. Schmidtke

A detailed analysis of simultaneous photometric and spectroscopic observations of the optical counterpart of the LMC "supersoft" X-ray source RX J0513.9-6951 (identified with HV 5682) is presented. The spectrum is dominated by He II…

We present high-speed long term photometric observations from 1992 to 1996 (UBVRI), as well as recently obtained (1997) spectrophotometric and high resolution spectroscopic studies of the bright galactic supersoft X-ray source…

天体物理学 · 物理学 2007-05-23 B. Deufel , H. Barwig , D. Simic , S. Wolf , N. Drory

We present far-ultraviolet (905 -- 1182 A), time-series spectroscopy of the eclipsing, novalike cataclysmic variable, UX UMa, acquired with FUSE. The time-averaged spectrum is complex and is dominated by overlapping spectral features. The…

天体物理学 · 物理学 2009-11-07 C. S. Froning , K. S. Long , C. Knigge

From 1994 to 1997 we monitored the optical spectrum of RXJ0019.8+2156. This supersoft X-ray source is one of only two accreting white dwarfs in the Galaxy thought to be burning hydrogen on their surface as a consequence of a high rate of…

天体物理学 · 物理学 2009-10-30 C. M. Becker , R. A. Remillard , S. A. Rappaport , J. E. McClintock

A new ephemeris has been determined for the supersoft X-ray binary CAL 83 using MACHO photometry. With an improved orbital period of 1.047568 days, it is now possible to phase together photometric and spectroscopic data obtained over the…

天体物理学 · 物理学 2009-11-10 P. C. Schmidtke , A. P. Cowley , J. B. Hutchings , K. Winter , D. Crampton

In a survey of the UV-brightest AGN using the Far Ultraviolet Spectroscopic Explorer (FUSE), we commonly find associated absorption in the O VI 1032,1038 resonance doublet. Of 34 Type I AGN observed to date with z < 0.15, 16 show detectable…

天体物理学 · 物理学 2007-05-23 Gerard A. Kriss

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…

天体物理学 · 物理学 2008-11-26 W. Van Dyke Dixon , Ravi Sankrit , Birgit Otte

We present an analysis of interstellar and intergalactic absorption lines in the FUSE spectrum of the low-redshift quasar PG0804+761 (z=0.100) at intermediate resolution (FWHM=25 km/s) in the direction l=138.3, b=31.0. With a good…

天体物理学 · 物理学 2009-10-31 P. Richter , B. D. Savage , B. P. Wakker , K. R. Sembach , P. M. W. Kalberla

(Abridged) We have used the Far Ultraviolet Spectroscopic Explorer (FUSE) to search for H_2 absorption in five starburst galaxies: NGC 1705, NGC 3310, NGC 4214, M83 (NGC 5236), and NGC 5253. We tentatively detect weak absorption by H_2 in…

天体物理学 · 物理学 2009-11-10 C. G. Hoopes , K. R. Sembach , T. M. Heckman , G. R. Meurer , A. Aloisi , D. Calzetti , C. Leitherer , C. L. Martin

We present the far-ultraviolet spectrum of the Seyfert 1 galaxy 2MASX J21362313-6224008 obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE). The spectrum features absorption from Galactic OVI at two velocities and redshifted HI…

天体物理学 · 物理学 2009-11-10 Massimiliano Bonamente , W. Van Dyke Dixon

Using the Far Ultraviolet Spectroscopic Explorer (FUSE) we have obtained 87 spectra of 57 low-redshift (z<0.15) active galactic nuclei (AGN). This sample comprises 53 Type 1 AGN and 4 Type 2. All the Type 1 objects show broad O VI 1034…

天体物理学 · 物理学 2017-08-23 Gerard A. Kriss , the FUSE AGN Working Group

The extraordinarily bright quasar PHL 1811 at a redshift z = 0.192 provides an attractive opportunity to use ultraviolet absorption-line spectroscopy to study the properties of gas systems in the local universe. An R = 20,000 far-UV…

We have obtained Hubble Space Telescope/STIS low-resolution ultraviolet spectra of the X-ray pulsar 4U 1626-67 (=KZ TrA); 4U 1626-67 is unusual even among X-ray pulsars due to its ultra-short binary period (P=41.4 min) and remarkably low…

天体物理学 · 物理学 2009-11-07 L. Homer , Scott F. Anderson , Stefanie Wachter , Bruce Margon

We have obtained a far-ultraviolet spectrum (1150 - 1600 Ang.) of a hot subdwarf star behind the remnant of SN 1006 with the Faint Object Spectrograph (FOS) on the Hubble Space Telescope. The high-quality spectrum is used to test previous…

Composite spectra derived from HST observations of moderate redshift (z~1) quasars show that the peak of the spectral energy distribution is at ~1000 A, and that the ionizing continuum falls off smoothly to shorter wavelengths as $f_\nu…

天体物理学 · 物理学 2007-05-23 Gerard A. Kriss

Far ultraviolet spectra were obtained of the active cool star AB Doradus (HD 36705) during the calibration and checkout period of the FUSE satellite. Observations in this early phase of the mission were taken at a resolving power of…

FUSE observations were obtained in July 2003 during 1.2 cycles of the 0.76-day binary orbit of RX J0513.9-6951. Radial velocity measurements of the broad O VI emission profile show a semiamplitude of K~26 km/sec, which is much smaller than…

天体物理学 · 物理学 2009-09-29 J. B. Hutchings , A. P. Cowley , R. Mann , P. C. Schmidtke , D. Crampton
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