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Time-resolved photometry of the nova remnants DM Gem, CP Lac, GI Mon, V400 Per, CT Ser and XX Tau
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UNSPECIFIED (2005) Time-resolved photometry of the nova remnants DM Gem, CP Lac, GI Mon, V400 Per, CT Ser and XX Tau. ASTRONOMY & ASTROPHYSICS, 431 (1). pp. 289-296. doi:10.1051/0004-6361:20041112 ISSN 0004-6361.
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Official URL: http://dx.doi.org/10.1051/0004-6361:20041112
Abstract
We present the first results of a photometric survey of poorly studied nova remnants in the Northern Hemisphere. The main results are as follows: DM Gem shows a modulation at 0.123 d (probably linked to the orbit) and rapid variations at similar to22 min. A moderate resolution spectrum taken at the time of the photometric observations shows intense He II lambda4686 and Bowen emission, characteristic of an intermediate polar or a SW Sex star. Variability at 0.127 d and intense flickering (or quasi-periodic oscillations) are the main features of the light curve of CP Lac. A 0.1-mag dip lasting for similar to45 min is observed in GI Mon, which could be an eclipse. A clear modulation (probably related to the orbital motion) either at 0.179 d or 0.152 d is observed in the B-band light curve of V400 Per. The results for CT Ser point to an orbital period close to 0.16 d. Intense flickering is also characteristic of this old nova. Finally, XX Tau shows a possible periodic signal near 0.14 d and displays fast variability at similar to24 min. Its brightness seems to be modulated at similar to5 d. We relate this long periodicity to the motion of an eccentric/tilted accretion disc in the binary.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QB Astronomy | ||||
Journal or Publication Title: | ASTRONOMY & ASTROPHYSICS | ||||
Publisher: | E D P SCIENCES | ||||
ISSN: | 0004-6361 | ||||
Official Date: | February 2005 | ||||
Dates: |
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Volume: | 431 | ||||
Number: | 1 | ||||
Number of Pages: | 8 | ||||
Page Range: | pp. 289-296 | ||||
DOI: | 10.1051/0004-6361:20041112 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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