Photometric Observations of a WZ Sge-type Dwarf Nova V455 Andromedae during the 2007 Superoutburst

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F09%3APU85943" target="_blank" >RIV/00216305:26110/09:PU85943 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Photometric Observations of a WZ Sge-type Dwarf Nova V455 Andromedae during the 2007 Superoutburst
Original language description
We discovered the first outburst of V455 And (=HS2331+3905) on Sep. 4 2007 at V=14.59, which has been considered a good candidate for the WZ Sge-type dwarf nova. A time-resolved photometry campaign was soon coordinated and covered the whole of the superoutburst from the rising phase to the slow fading tail. At the time of our outburst detection, the object was in the rising phase at a rate of 10 mag/day. We found that there were no orbital humps nor early superhumps during the rapid rising phase of superoutburst. Early superhumps with a period of 0.05626(1) days appeared around the maximum. Ordinary superhumps appeared 9 days after the maximum. The snperhump period was 0.057202(1) days which was 1.6 decline from the plateau 19 days after the maximum. After the rapid fading, the object showed a slow fading trend at a rate of 0.03 mag/day. During the early phase of the slow fading tail, superhumps with a period of 0.05728(3) days were observed. The object showed no rebrightenings. We wil
Czech name
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Czech description
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Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
EIGHTH PACIFIC RIM CONFERENCE ON STELLAR ASTROPHYSICS: A TRIBUTE TO KAM-CHING LEUNG
ISBN
978-1-58381-685-1
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
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Publisher name
ASTRONOMICAL SOC PACIFIC
Place of publication
SAN FRANCISCO
Event location
Phuket
Event date
May 5, 2008
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000271628900012

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