The nature of V359 Centauri revealed: New long-period SU UMa-type dwarf nova

被引：11

作者：

Kato, T ^{[1
]}

Stubbings, R

Nelson, P

Santallo, R

Ishioka, R

Uemura, M

Sumi, T

Muraki, Y

Kilmartin, P

Bond, I

Noda, S

Yock, P

Hearnshaw, JB

Monard, B

Yamaoka, H

机构：

[1] Kyoto Univ, Dept Astron, Kyoto 6068502, Japan

[2] So Stars Observ, F-98702 FAAA TAHITI, France

[3] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan

[4] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[5] Univ Canterbury, Dept Phys & Astron, Christchurch 1, New Zealand

[6] Univ Edinburgh, Royal Observ, Astron Inst, Edinburgh, Midlothian, Scotland

[7] Natl Astron Observ Japan, Astron Data Anal Ctr, Tokyo, Japan

[8] Univ Auckland, Dept Phys, Auckland, New Zealand

[9] Bronberg Observ, ZA-0056 Tiegerpoort, South Africa

[10] Kyushu Univ, Fac Sci, Fukuoka 8108560, Japan

来源：

ASTRONOMY & ASTROPHYSICS | 2002年 / 395卷 / 02期

关键词：

accretion; accretion disks; novae; cataclysmic variables; stars : dwarf novae; stars : individual : V359 Cen;

D O I：

10.1051/0004-6361:20021267

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We detected four outbursts of V359 Cen (possible nova discovered in 1939) between 1999 and 2002. Time-resolved CCD photometry during two outbursts (1999 and 2002) revealed that V359 Cen is actually a long-period SU UMa-type dwarf nova with a mean superhump period of 0.08092(1)d. We identified its supercycle length as 307-397 d. This secure identification of the superhump period precludes the previously supposed possibility that V359 Cen could be related to a WZ Sge-type system with a long persistence of late superhumps. The outburst characteristics of V359 Cen are, however, rather unusual in its low occurrence of normal outbursts.

引用

页码：541 / 548

页数：8

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