RZ Leonis Minoris bridging between ER Ursae Majoris-type dwarf nova and nova-like system

被引：13

作者：

Kato, Taichi ^{[1
]}

Ishioka, Ryoko ^{[2
]}

Isogai, Keisuke ^{[1
]}

Kimura, Mariko ^{[1
]}

Imada, Akira ^{[3
,4
]}

Miller, Ian ^{[5
]}

Masumoto, Kazunari ^{[6
]}

Nishino, Hirochika ^{[6
]}

Kojiguchi, Naoto ^{[6
]}

Kawabata, Miho ^{[6
]}

Sakai, Daisuke ^{[6
]}

Sugiura, Yuki ^{[6
]}

Furukawa, Hisami ^{[6
]}

Yamamura, Kenta ^{[6
]}

Kobayashi, Hiroshi ^{[6
]}

Matsumoto, Katsura ^{[6
]}

Wang, Shiang-Yu ^{[2
]}

Chou, Yi ^{[7
]}

Ngeow, Chow-Choong ^{[7
]}

Chen, Wen-Ping ^{[7
]}

Panwar, Neelam ^{[7
]}

Lin, Chi-Sheng ^{[7
]}

Hsiao, Hsiang-Yao ^{[7
]}

Guo, Jhen-Kuei ^{[7
]}

Lin, Chien-Cheng ^{[7
]}

Omarov, Chingis ^{[8
]}

Kusakin, Anatoly ^{[8
]}

Krugov, Maxim ^{[8
]}

Starkey, Donn R. ^{[9
]}

Pavlenko, Elena P. ^{[10
]}

Antonyuk, Kirill A. ^{[10
]}

Sosnjvskij, Aleksei A. ^{[10
]}

Antonyuk, Oksana I. ^{[10
]}

Pit, Nikolai V. ^{[10
]}

Baklanov, Alex V. ^{[10
]}

Babina, Julia V. ^{[10
]}

Itoh, Hiroshi ^{[11
]}

Padovan, Stefano ^{[12
]}

Akazawa, Hidehiko ^{[13
]}

Kafka, Stella ^{[12
]}

de Miguel, Enrique ^{[14
,15
]}

Pickard, Roger D. ^{[16
,17
]}

Kiyota, Seiichiro ^{[18
]}

Shugarov, Sergey Yu. ^{[19
,20
]}

Chochol, Drahomir ^{[20
]}

Krushevska, Viktoriia ^{[21
]}

Sekeras, Matej ^{[20
]}

Pikalova, Olga ^{[22
]}

Sabo, Richard ^{[23
]}

Dubovsky, Pavol A. ^{[24
]}

机构：

[1] Kyoto Univ, Dept Astron, Sakyo Ku, Kitashirakawa Oiwake Cho, Kyoto, Kyoto 6068502, Japan

[2] Natl Taiwan Univ, Acad Sinica, Inst Astron & Astrophys, 11F Astron Math Bldg,1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan

[3] Kyoto Univ, Kwasan Observ, Yamashina Ku, 17 Ohmine Cho Kita Kazan, Kyoto, Kyoto 6078471, Japan

[4] Kyoto Univ, Hida Observ, Yamashina Ku, 17 Ohmine Cho Kita Kazan, Kyoto, Kyoto 6078471, Japan

[5] Furzehill House, Swansea SA2 7LE, W Glam, Wales

[6] Osaka Kyoiku Univ, 4-698-1 Asahigaoka, Osaka 5828582, Japan

[7] Natl Cent Univ, Grad Inst Astron, Jhongli 32001, Taiwan

[8] Fessenkov Astrophys Inst, Observ 23, Alma Ata 050020, Kazakhstan

[9] DeKalb Observ, H63,2507 Cty Rd 60, Auburn, IN 46706 USA

[10] RAS, Crimean Astrophys Observ, Fed State Budget Sci Inst, Nauchnyi 298409, Republic Of Cri, Ukraine

[11] VSOLJ, 1001-105 Nishiterakata, Hachioji, Tokyo 1920153, Japan

[12] Amer Assoc Variable Star Observers, 49 Bay State Rd, Cambridge, MA 02138 USA

[13] Okayama Univ Sci, Fac Informat, Dept Biosphere Geosphere Syst Sci, 1-1 Ridai Cho, Okayama, Okayama 7000005, Japan

[14] Univ Huelva, Fac Ciencias Expt, Dept Ciencias Integradas, Huelva 21071, Spain

[15] Observ CIECEM, Ctr Backyard Astrophys, Parque Dunar, Almonte 21760, Huelva, Spain

[16] British Astron Assoc, Variable Star Sect, Burlington House, London W1J 0DU, England

[17] 3 Birches, Leominster HR6 9NG, Hereford, England

[18] VSOLJ, 7-1 Kitahatsutomi, Chiba 2730126, Japan

[19] Lomonosov Moscow State Univ, Sternberg Astron Inst, Univ Sky Ave 13, Moscow 119992, Russia

[20] Slovak Acad Sci, Astron Inst, Tatranska Lomnica 05960, Slovakia

[21] Natl Acad Sci Ukraine, Main Astron Observ, 27 Akad Zabolotnoho Ave, UA-03680 Kiev, Ukraine

[22] Lomonosov Moscow State Univ, Fac Phys, Moscow 119991, Russia

[23] 2336 Trailcrest Dr, Bozeman, MT 59718 USA

[24] Vihorlat Observ, Mierova 4, Humenne 06601, Slovakia

[25] Northbrook Meadow Observ, Ctr Backyard Astrophys Illinois, 855 Fair Ln, Northbrook, IL 60062 USA

[26] Rolling Hills Observ, 1643 Nightfall Dr, Clermont, FL 34711 USA

[27] Hungarian Astron Assoc, Polaris Observ, Laborc Utca 2-C, H-1037 Budapest, Hungary

[28] Publ Observ Astrolab Iris, Verbrandemolenstr 5, B-8901 Zillebeke, Belgium

[29] Ctr Backyard Astrophys Belgium, Walhostr 1A, B-3401 Landen, Belgium

[30] Hankasalmi Observ, Vertaalantie 116, FIN-40500 Hankasalmi, Finland

[31] Kaminishiyamamachi 12-14, Nagasaki, Nagasaki 8500006, Japan

[32] Baselstr 133D, CH-4132 Muttenz, Switzerland

[33] 9 Rue Vasco GAMA, F-59553 Lauwin Planque, France

[34] Univ Turku, Finnish Ctr Astron ESO FINCA, Vaisalantie 20, FIN-21500 Piikkio, Finland

[35] Univ Oulu, Astron Res Unit, POB 3000, FIN-90014 Oulu, Finland

[36] George Elma Observ, 9 Contentment Crest,182, Mayhill, NM 88339 USA

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2016年 / 68卷 / 06期

关键词：

accretion; accretion disks-novae; cataclysmic variables-stars: dwarf novae-stars: individual (RZ Leonis Minoris); SU-UMA STARS; CATACLYSMIC VARIABLE CANDIDATES; KEPLER LIGHT-CURVE; PERIOD VARIATIONS; ACCRETION DISKS; V1504; CYGNI; SUPERHUMPS; SUPEROUTBURST; MODEL; SUPERCYCLES;

D O I：

10.1093/pasj/psw101

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We observed RZ LMi, which is renowned for its extremely short (similar to 19 d) supercycle and is a member of a small, unusual class of cataclysmic variables called ERUMa-type dwarf novae, in 2013 and 2016. In 2016, the supercycles of this object substantially lengthened in comparison to the previous measurements to 35, 32, and 60 d for three consecutive superoutbursts. We consider that the object virtually experienced a transition to the novalike state (permanent superhumper). This observed behavior reproduced the prediction of the thermal- tidal instability model extremely well. We detected a precursor in the 2016 superoutburst and detected growing (stage A) superhumps with a mean period of 0.0602(1) d in 2016 and in 2013. Combined with the period of superhumps immediately after the superoutburst, the mass ratio is not as small as in WZ Sge-type dwarf novae, having orbital periods similar to RZ LMi. By using least absolute shrinkage and selection operator (Lasso) two-dimensional power spectra, we detected possible negative superhumps with a period of 0.05710(1) d. We estimated an orbital period of 0.05792 d, which suggests a mass ratio of 0.105(5). This relatively large mass ratio is even above that of ordinary SUUMa-type dwarf novae, and it is also possible that the exceptionally high mass-transfer rate in RZ LMi may be a result of a stripped secondary with an evolved core in a system evolving toward an AM CVn-type object.

引用

页数：14

共 54 条

[31] EARTH, MOON, SUN, AND CV ACCRETION DISKS
Montgomery, M. M.
[J]. ASTROPHYSICAL JOURNAL, 2009, 705 (01) : 603 - 616
[32] WZ Sge-Type Dwarf Novae with Multiple Rebrightenings: MASTER OT J211258.65+242145.4 and MASTER OT J203749.39+552210.3
Nakata, Chikako
Ohshima, Tomohito
Kato, Taichi
Nogami, Daisaku
Masi, Gianluca
de Miguel, Enrique
Ulowetz, Joseph
Littlefield, Colin
Goff, William N.
Krajci, Thomas
Maehara, Hiroyuki
Stein, William
Sabo, Richard
Noguchi, Ryo
Ono, Rikako
Kawabata, Miho
Furukawa, Hisami
Matsumoto, Katsura
Ishibashi, Takehiro
Dubovsky, Pavol A.
Kudzej, Igor
Dvorak, Shawn
Hambsch, Franz-Josef
Pickard, Roger D.
Morelle, Etienne
Muyllaert, Eddy
Padovan, Stefano
Henden, Arne
[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 2013, 65 (06)
[33] Nogami D, 1995, PUBL ASTRON SOC JPN, V47, P897
[34] Study of negative and positive superhumps in ER Ursae Majoris
Ohshima, Tomohito
Kato, Taichi
Pavlenko, Elena
Akazawa, Hidehiko
Imamura, Kazuyoshi
Tanabe, Kenji
de Miguel, Enrique
Stein, William
Itoh, Hiroshi
Hambsch, Franz-Josef
Dubovsky, Pavol A.
Kudzej, Igor
Krajci, Thomas
Baklanov, Alex
Samsonov, Denis
Antonyuk, Oksana I.
Malanushenko, Viktor
Andreev, Maksim V.
Noguchi, Ryo
Ogura, Kazuyuki
Nomoto, Takashi
Ono, Rikako
Nakagawa, Shin'ichi
Taniuchi, Keisuke
Aoki, Tomoya
Kawabata, Miho
Kimura, Hitoshi
Masumoto, Kazunari
Kobayashi, Hiroshi
Matsumoto, Katsura
Shiokawa, Kazuhiko
Shugarov, Sergey Yu.
Katysheva, Natalia
Voloshina, Irina
Zemko, Polina
Kasai, Kiyoshi
Ruiz, Javier
Maehara, Hiroyuki
Virnina, Natalia
Virtanen, Jani
Miller, Ian
Boitnott, Boyd
Littlefield, Colin
James, Nick
Tordai, Tamas
Robert, Fidrich
Padovan, Stefano
Miyashita, Atsushi
[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 2014, 66 (04)
[35] Olech A, 2008, ACTA ASTRONOM, V58, P131
[36] Osaki Y, 1995, ASTROPHYS SPACE SC L, V205, P307, DOI 10.1007/978-94-011-0335-0_90
[37] OSAKI Y, 1989, PUBL ASTRON SOC JPN, V41, P1005
[38] OSAKI Y, 1995, PUBL ASTRON SOC JPN, V47, pL25
[39] OSAKI Y, 1995, PUBL ASTRON SOC JPN, V47, pL11
[40] Study of Superoutbursts and Superhumps in SU UMa Stars by the Kepler Light Curves of V344 Lyrae and V1504 Cygni
Osaki, Yoji
Kato, Taichi
[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 2013, 65 (05)

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