J-, H-, and K-band Spectra of Three SU UMa-Type Dwarf Novae
نویسندگان
چکیده
منابع مشابه
Photometric Studies of New Southern SU UMa - type dwarf novae , FL Triangulum Australe and CTCV J 0549 - 4921
We report time-resolved optical CCD photometry on newly discovered SU UMa-type dwarf novae, FL TrA and CTCV J0549-4921. During the 2006 August outburst, we detected superhumps with a period of 0.59897(11) days for FL TrA, clarifying the SU UMa nature of the system. On the first night of our observations on FL TrA, the object showed no superhumps. This implies that it takes a few days for full d...
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We photometrically observed the 2002 August long outburst of BF Ara. The observation for the first time unambiguously detected superhumps (average period 0.08797(1) d), qualifying BF Ara as a genuine SU UMa-type dwarf nova. An analysis of the longterm visual light curve yielded a mean supercycle length of 84.3(3) d. The characteristics of outbursts and superhumps more resemble those of usual SU...
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Our research on variable objects based on the VSNET collaborations has achieved much progress in understanding the nature of many kinds of phenomena. Many problems have appeared, instead. Among them, we here review three newly arising problems in the research of SU UMa-type dwarf novae: 1) how do EI Psc and V485 Cen evolve as a cataclysmic variable?, 2) is the early superhump a particular pheno...
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The cataclysmic variable V1504 Cyg is observed at the UCI Observatory for periodic variability, showing that the observatory is capable of performing time-resolved photometry on a dwarf nova system. The software package IRAF is used to calibrate the images and to measure the flux from the target and several reference stars with aperture photometry. These same stars are then used to compute diff...
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ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2006
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921307006229