dc.contributor.author |
Kato T. |
|
dc.contributor.author |
Tordai T. |
|
dc.contributor.author |
Littlefield C. |
|
dc.contributor.author |
Kasai K. |
|
dc.contributor.author |
Shugarov S. |
|
dc.contributor.author |
Katysheva N. |
|
dc.contributor.author |
Zaostrojnykh A. |
|
dc.contributor.author |
Pickard R. |
|
dc.contributor.author |
De Miguel E. |
|
dc.contributor.author |
Antonyuk K. |
|
dc.contributor.author |
Antonyuk O. |
|
dc.contributor.author |
Pavlenko E. |
|
dc.contributor.author |
Pit N. |
|
dc.contributor.author |
Itoh H. |
|
dc.contributor.author |
Ruiz J. |
|
dc.contributor.author |
Isogai K. |
|
dc.contributor.author |
Kimura M. |
|
dc.contributor.author |
Wakamatsu Y. |
|
dc.contributor.author |
Vanmunster T. |
|
dc.contributor.author |
Stone G. |
|
dc.date.accessioned |
2018-04-05T07:08:50Z |
|
dc.date.available |
2018-04-05T07:08:50Z |
|
dc.date.issued |
2017 |
|
dc.identifier.issn |
0004-6264 |
|
dc.identifier.uri |
http://dspace.kpfu.ru/xmlui/handle/net/129365 |
|
dc.description.abstract |
© The Author 2017. Published by Oxford University Press on behalf of the Astronomical Society of Japan. All rights reserved. For Permissions, please email:. We observed the 2016 outburst of OT J002656.6+284933 (CSS101212:002657+284933) and found that it has the longest recorded [0.13225(1) d on average] superhumps among SU UMa-type dwarf novae. The object is the third known SU UMa-type dwarf nova above the period gap. The outburst, however, was unlike ordinary long-period SU UMa-type dwarf novae in that it s howed two post-outburst rebrightenings. It showed superhump evolution similar to short-period SU UMa-type dwarf novae. We could constrain the mass ratio to less than 0.15 (most likely between 0.10 and 0.15) by using superhump periods in the early and post-superoutburst stages. These results suggest the possibility that OT J002656.6+284933 has an anomalously undermassive secondary and it should have followed a different evolutionary track from the standard one. |
|
dc.relation.ispartofseries |
Publications of the Astronomical Society of Japan |
|
dc.subject |
accretion, accretion disks |
|
dc.subject |
stars: dwarf novae |
|
dc.subject |
stars: individual (OT J002656.6+284933) |
|
dc.subject |
stars: novae, cataclysmic variables |
|
dc.title |
OT J002656.6+284933 (CSS101212:002657+284933): An SU UMa-type dwarf nova with the longest superhump period |
|
dc.type |
Article |
|
dc.relation.ispartofseries-issue |
3 |
|
dc.relation.ispartofseries-volume |
69 |
|
dc.collection |
Публикации сотрудников КФУ |
|
dc.source.id |
SCOPUS00046264-2017-69-3-SID85021411450 |
|