منابع مشابه
The reproducible radio outbursts of SS Cygni
We present the results of our intensive radio observing campaign of the dwarf nova SS Cyg during its 2010 April outburst. We argue that the observed radio emission was produced by synchrotron emission from a transient radio jet. Comparing the radio light curves from previous and subsequent outbursts of this system (including highresolution observations from outbursts in 2011 and 2012) shows tha...
متن کاملThe dwarf nova SS Cygni : what is wrong ?
Context. Since using the Fine Guiding Sensor (FGS) on the Hubble Space Telescope (HST) the distance to SS Cyg has been measured to be 166 ± 12 pc, it became apparent that at this distance the disc instability model fails to explain the absolute magnitude during outburst. It remained, however, an open question whether the model or the distance has to be revised. Recent observations led to a revi...
متن کاملPeriodic Variabilities in the Iue Spectra of Ss Cygni
The analysis of the IUE low resolution spectra of SS Cyg in quiescence clearly shows modulations with the orbital phase of the continuum and the emission lines total area. The shape of such modulations is depending on the type of the optical outburst preceding the quiescent phase in which the UV spectra were collected. This behaviour, together with those in other wavelength regions, could be ex...
متن کاملHubble Space Telescope Fine Guidance Sensor Astrometric Parallaxes for Three Dwarf Novae: Ss Aurigae, Ss Cygni, and U Geminorum
We report astrometric parallaxes for three well-known dwarf novae obtained using the Fine Guidance Sensors on the Hubble Space Telescope (HST). We found a parallax for SS Aurigae of mas, for p 5 5.00 5 0.64 SS Cygni we found mas, and for U Geminorum we obtained mas. These p 5 6.02 5 0.46 p 5 10.37 5 0.50 represent the first true trigonometric parallaxes of any dwarf novae. We briefly compare th...
متن کاملHst Fine Guidance Sensor Astrometric Parallaxes for Three Dwarf Novae: Ss Aurigae, Ss Cygni, and U Geminorum
We report astrometric parallaxes for three well known dwarf novae obtained using the Fine Guidance Sensors on the Hubble Space Telescope. We found a parallax for SS Aurigae of π = 5.00 ± 0.64 mas, for SS Cygni we found π = 6.02 ± 0.46 mas, and for U Geminorum we obtained π = 10.37 ± 0.50 mas. These represent the first true trigonometric parallaxes of any dwarf novae. We briefly compare these re...
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ژورنال
عنوان ژورنال: Acta Polytechnica CTU Proceedings
سال: 2015
ISSN: 2336-5382
DOI: 10.14311/app.2015.02.0148