J/PASJ/68/65 Superhumps in SU UMa-type dwarf novae (Kato+, 2016)
Survey of period variations of superhumps in SU UMa-type dwarf novae.
VIII. The eighth year (2015-2016).
Kato T., Hambsch F.-J., Monard B., Vanmunster T., Maeda Y., Miller I.,
Itoh H., Kiyota S., Isogai K., Kimura M., Imada A., Tordai T., Akazawa H.,
Tanabe K., Otani N., Ogi M., Ando K., Takigawa N., Dubovsky P.A.,
Kudzej I., Shugarov S.Y., Katysheva N., Golysheva P., Gladilina N.,
Chochol D., Starr P., Kasai K., Pickard R.D., De Miguel E., Kojiguchi N.,
Sugiura Y., Fukushima D., Yamada E., Uto Y., Kamibetsunawa T., Tatsumi T.,
Takeda N., Matsumoto K., Cook L.M., Pavlenko E.P., Babina J.V., Pit N.V.,
Antonyuk O.I., Antonyuk K.A., Sosnovskij A.A., Baklanov A.V., Kafka S.,
Stein W., Voloshina I.B., Ruiz J., Sabo R., Dvorak S., Stone G.,
Andreev M.V., Antipin S.V., Zubareva A.M., Zaostrojnykh A.M., Richmond M.,
Shears J., Dubois F., Logie L., Rau S., Vanaverbeke S., Simon A.,
Oksanen A., Goff W.N., Bolt G., Debski B., Kochanek C.S., Shappee B.,
Stanek K.Z., Prieto J.L., Stubbings R., Muyllaert E., Hiraga M., Horie T.,
Schmeer P., Hirosawa K.
<Publ. Astron. Soc. Jap., 68, 65 (2016)>
=2016PASJ...68...65K 2016PASJ...68...65K (SIMBAD/NED BibCode)
ADC_Keywords: Novae
Keywords: accretion, accretion disks - novae, cataclysmic variables -
stars: dwarf novae
Abstract:
Continuing the project described by Kato et al. (2009PASJ...61S.395K 2009PASJ...61S.395K),
we collected times of superhump maxima for 128 SU UMa-type dwarf
novae observed mainly during the 2015-2016 season and characterized
these objects. The data have improved the distribution of orbital
periods, the relation between the orbital period and the variation of
superhumps, and the relation between period variations and the
rebrightening type in WZ Sge-type objects. Coupled with new
measurements of mass ratios using growing stages of superhumps, we now
have a clearer and statistically greatly improved evolutionary path
near the terminal stage of evolution of cataclysmic variables. Three
objects (V452 Cas, KK Tel, and ASASSN-15cl) appear to have slowly
growing superhumps, which is proposed to reflect the slow growth of
the 3 : 1 resonance near the stability border. ASASSN-15sl,
ASASSN-15ux, SDSS J074859.55+312512.6, and CRTS J200331.3-284941
are newly identified eclipsing SU UMa-type (or WZ Sge-type) dwarf
novae. ASASSN-15cy has a short (∼0.050d) superhump period and
appears to belong to EI Psc-type objects with compact secondaries
having an evolved core. ASASSN-15gn, ASASSN-15hn, ASASSN-15kh, and
ASASSN-16bu are candidate period bouncers with superhump periods
longer than 0.06d. We have newly obtained superhump periods for 79
objects and 13 orbital periods, including periods from early
superhumps. In order that future observations will be more
astrophysically beneficial and rewarding to observers, we propose
guidelines on how to organize observations of various superoutbursts.
Description:
The data were obtained under campaigns led by the VSNET Collaboration
(Kato et al., 2004PASJ...56S...1K 2004PASJ...56S...1K). We also used the public data for
some objects from the AAVSO International Database
(http://www.aavso.org/data-download). Outburst detections heavily
relied on the ASAS-SN CV patrol (Davis et al. 2015, AAS Meeting, 225,
344.02, http://cv.asassn.astronomy.ohio-state.edu/), and the Catalina
Real-time Transient Survey (CRTS: Drake et al. 2009ApJ...696..870D 2009ApJ...696..870D,
http://nesssi.cacr.caltech.edu/catalina/), in addition to outburst
detections reported to VSNET, AAVSO (https://www.aavso.org), BAAVSS
alert (https://groups.yahoo.com/neo/groups/baavss-alert/info), and
cvnet-outburst
(https://groups.yahoo.com/neo/groups/cvnet-outburst/info). There were
some detections by the MASTER network (Gorbovskoy et al.,
2013ARep...57..233G 2013ARep...57..233G).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 131 135 List of superoutbursts
table2.dat 98 112 Superhump periods and period derivatives
table3.dat 67 78 Coordinates of objects without coordinate-based
names
list.dat 90 109 List of stars with superhump maxima data in
tablee.dat
tablee.dat 43 1984 Superhump maxima
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 14 A14 --- Name Object name
16- 19 I4 yr Year Year
21- 49 A29 --- OName Original identifications
51-131 A81 --- Obs Observers and references (1)
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Note (1): Key to observers:
Aka = H. Akazawa, OUS
Ant = S. Antipin and A. Zubareva team
COO = L. Cook
CRI = Crimean Astrophys. Obs.
Deb = B. Debski
deM = E. de Miguel
DKS = S. Dvorak, inclusive of observations from the AAVSO database
DPV = P. Dubovsky
Dub = F. Dubois team
GBo = G. Bolt
GFB = W. Goff, inclusive of observations from the AAVSO database
HMB = F.-J. Hambsch
HaC = F.-J. Hambsch, remote obs. in Chile
Han = Hankasalmi Obs., by A. Oksanen
IMi = I. Miller, inclusive of observations from the AAVSO database
Ioh = H. Itoh
JSh = J. Shears, inclusive of observations from the AAVSO database
KU = Kyoto Univ., campus obs.
Kai = K. Kasai
Kis = S. Kiyota
Les = Lesniki Obs.
MLF = B. Monard
Mdy = Y. Maeda
NKa = N. Katysheva and S. Shugarov
OKU = Osaya Kyoiku Univ.
OUS = Okayama Univ. of Science
RIT = M. Richmond
RPc = R. Pickard, inclusive of observations from the AAVSO database
Rui = J. Ruiz
SGE = G. Stone, inclusive of observations from the AAVSO database
SPE = P. Starr, inclusive of observations from the AAVSO database
SRI = R. Sabo, inclusive of observations from the AAVSO database
SWI = W. Stein, inclusive of observations from the AAVSO database
Shu = S. Shugarov team
Ter = Terskol Obs.
Trt = T. Tordai
Van = T. Vanmunster
Vol = I. Voloshina
AAVSO = AAVSO database
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 14 A14 --- Name Object name
16- 19 I4 yr Year Year
21- 28 F8.6 d P1 ?=- Period of stage B superhump
30- 37 F8.6 s e_P1 ?=- rms uncertainty on P1
39- 40 I2 --- E1l ?=- Lower value of interval used for
calculating the period (corresponding to E in
tablee.dat)
42- 44 I3 --- E1u ?=- Upper value of interval used for
calculating the period (corresponding to E in
tablee.dat)
46- 51 F6.1 10-5 dP/dt ?=- Period derivative for stage B superhump
53- 56 F4.1 10-5 e_dP/dt ?=- rms uncertainty on dP/dt
58- 65 F8.6 d P2 ?=- Period of stage C superhump
67- 74 F8.6 s e_P2 ?=- rms uncertainty on P2
76- 78 I3 --- E2l ?=- Lower value of interval used for
calculating the period (corresponding to E in
tablee.dat)
80- 82 I3 --- E2u ?=- Upper value of interval used for
calculating the period (corresponding to E in
tablee.dat)
84- 91 F8.6 d Porb ?=- Orbital period
93- 94 I2 --- r_Porb ? Refernece for Pord (1)
96- 98 A3 --- Q Data quality and comments (2)
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Note (1): References for period as follows:
1 = D. Denisenko, 2007, vsnet-alert 9557
2 = P. Longa-Pena et al., 2015MNRAS.447..149L 2015MNRAS.447..149L, see subsection 3.6
3 = Thorstensen, Fenton, 2003PASP..115...37T 2003PASP..115...37T
4 = Kato et al., 2014PASJ...66...90K 2014PASJ...66...90K
5 = Sheets et al., 2007PASP..119..494S 2007PASP..119..494S
6 = Patterson et al., 2003PASP..115.1308P 2003PASP..115.1308P
7 = Thorstensen et al., 1996PASP..108...73T 1996PASP..108...73T
8 = Thorstensen et al., 2002PASP..114.1108T 2002PASP..114.1108T
9 = Dai et al., 2016; improved by this work
10 = Kato et al., 2009PASJ...61S.395K 2009PASJ...61S.395K
11 = Patterson et al., 2003PASP..115.1308P 2003PASP..115.1308P
12 = Skinner et al., 2014AJ....148..115S 2014AJ....148..115S
13 = Uthas, 2011MNRAS.414L..85U 2011MNRAS.414L..85U
14 = Namekata et al., 2016, PASJ, submitted
16 = this work
Note (2): Data quality and comments as follows:
A = excellent
B = partial coverage or slightly low quality
C = insufficient coverage or observations with large scatter
G = Pdot denotes global Pdot
M = observational gap in middle stage
U = uncertainty in alias selection
2 = late-stage coverage, the listed period may refer to P2
E = Porb refers to the period of early superhumps
e = eclipsing system
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Name Object name
13- 14 I2 h RAh Right ascension (J2000)
16- 17 I2 min RAm Right ascension (J2000)
19- 23 F5.2 s RAs Right ascension (J2000)
25 A1 --- DE- Declination sign (J2000)
26- 27 I2 deg DEd Declination (J2000)
29- 30 I2 arcmin DEm Declination (J2000)
32- 35 F4.1 arcsec DEs Declination (J2000)
37- 45 A9 --- Source Source (1)
46 A1 --- n_Source [+] +: see text for more details
48- 51 F4.1 mag gmag ?=- SDSS g magnitude or upper value if interval
52 A1 --- --- [-]
53- 56 F4.1 mag gmagl ? Lower value of SDSS g magnitude interval
57 A1 --- u_gmag [?] Uncertainty flag on gmag
59- 63 F5.2 mag NUV ?=- GALEX NUV magnitude
65- 67 F3.2 mag e_NUV ? rms uncertainty on NUV
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Note (1): Source of the coordinates as follows:
2MASS = 2MASS All-Sky Catalog of Point Sources;
Cutri et al., 2003, Cat. II/246
ASAS-SN = ASAS-SN measurements
Gaia = Gaia measurements
GSC2.3.2 = The Guide Star Catalog, Version 2.3.2,
Lasker et al., 2007, Cat. I/305
IGSL = The Initial Gaia Source List 3, Smart 2013, Cat. I/324
IPHAS-DR2 = INT/WFC Photometric Halpha Survey,
Witham et al., 2008, Cat. II/321
KIC = The Kepler Input Catalog, Kepler Mission Team 2009, Cat. V/133
SDSS = The SDSS Photometric Catalog, Release 9,
Ahn et al. 2012, Cat. V/139
USNO-A2.0 = The USNO-A2.0 Catalogue, Monet et al. 1998, Cat. I/252
Kis = observer S. Kiyota
deM = observer E. de Miguel
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Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Star Star number (as in tablee.dat)
5- 18 A14 --- Name Object name
20- 23 I4 yr Year Year
25- 51 A27 ---- Com Comments on Year
53- 90 A38 --- max Max equation
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Byte-by-byte Description of file: tablee.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Star Star identification number (as in list.dat)
5- 7 I3 --- Seq ?=- Sequential number
9- 18 F10.4 d Emax ?=- Epoch of maximum (JD-2400000)
20- 25 F6.4 --- Phase ?=- Phase
27- 33 F7.4 d O-C ?=- O-C for epoch of maximum
35- 38 F4.2 --- Porb ? Orbital phase
40- 42 I3 --- Nobs ?=- Number of points used to determine the maximum
43 A1 --- Note [*]
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 15-Sep-2016