2024A&A...691A.249S

Query : 2024A&A...691A.249S

2024A&A...691A.249S - Astronomy and Astrophysics, volume 691A249 (2024/11-1)

New orbital periods of high-inclination dwarf novae based on Gaia Alerts photometry.

SAEZ-CARVAJAL C., VOGT N., ZOROTOVIC M., GARCIA-VEAS J., ARAVENA-ROJAS G., DUMOND L., FIGUEROA-TAPIA F., LOPEZ-BONILLA Y., RODRIGUEZ-JIMENEZ A., VEGA-MANUBENS I. and GRAWE B.

Abstract (from CDS):

The orbital period of a cataclysmic variable stands as a crucial parameter for investigating the structure and physics of these binary systems, as well as understanding their evolution. We use photometric Gaia data for dwarf novae (DNe) in the quiescent state - which are available for a number of years - to determine new orbital periods and improve or modify previously suggested period values. Two approaches are implemented for selecting high-inclination targets, either eclipsing or with ellipsoidal variations. We determine new orbital periods for 75 DNe and improve ephemerides for 27 more (three of which change significantly), contributing 9.4% of the known DNe periods of between 0.05 and 2.0 days, and doubling the number of known periods exceeding 0.44 days. Their phase-folded light curves are presented and arranged by orbital period, illustrating the transition from short-period systems, dominated by radiation from the accretion disc and the hot spot, to longer-period DNe, where the Roche-lobe-filling secondary star is the primary visual flux source. This transition - which occurs around the well-known period gap (between ∼2 and 3 hours) - is expected, as DNe with larger orbital periods typically harbour more massive donors, which contribute to the visible flux. However, this transition is not abrupt. Within the same range of periods, we observe systems dominated by ellipsoidal variations, where the companion star is clearly visible, as well as others dominated by the disc and the hot spot. The presence of some DNe with ellipsoidal variations near the lower edge of the period gap is striking, as the companions in these systems are expected to be cool low-mass M-dwarfs not visible in the light curve. This could indicate that we are observing systems where the donor star was originally much more massive and underwent significant nuclear evolution before mass-transfer began, as has been suggested previously for QZ Ser.

Abstract Copyright: © The Authors 2024

Journal keyword(s): ephemerides - binaries: eclipsing - stars: dwarf novae - novae - cataclysmic variables

VizieR on-line data: <Available at CDS (J/A+A/691/A249): sources.dat table1.dat>

Simbad objects: 107

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Number of rows : 107
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ASASSN -13cx CV* 00 02 22.3656772296 +42 42 13.485599172           DQ: 11 0
2 Gaia DR3 419646995204606848 CV* 00 26 09.8030159430 +54 32 42.342260044           ~ 2 0
3 Gaia 19bfh CV* 00 37 17.93758521 +52 25 12.1133420           ~ 3 0
4 UCAC4 761-008050 CV* 00 46 08.0323471152 +62 10 04.959846624           ~ 10 0
5 SDSS J005347.32+405548.5 CV* 00 53 47.3325775392 +40 55 48.532702296           ~ 7 0
6 CRTS J011113.4-444134 CV* 01 11 13.5447059214 -44 41 33.882777557           ~ 3 0
7 [HB93] 0119-341B CV* 01 21 52.1817700416 -33 56 15.920506680   21.0   19.8 17.64 ~ 8 1
8 CRTS CSS151208 J020401+434133 CV* 02 04 01.0677764251 +43 41 32.465641712           ~ 4 0
9 ASASSN -14gl CV* 02 05 00.35901326 +46 05 38.0360688     15.85     ~ 6 0
10 ZTF J022541.29+532654.7 CV* 02 25 41.29 +53 26 54.7           ~ 3 0
11 V* KW And CV* 02 35 17.9801396544 +41 14 02.250909276           ~ 12 0
12 Gaia 22eit CV* 02 40 40.7676421872 +54 59 58.362596565           ~ 2 0
13 V* AY For CV* 02 42 34.8028239600 -28 02 43.756092780   19.0 18.68     ~ 22 0
14 AT 2019cbz CV* 03 28 15.9309917016 +61 25 17.326952472           DC: 9 0
15 V* LT Eri CV* 04 07 14.7818653656 -06 44 25.166660172           ~ 31 0
16 V* VW Hyi CV* 04 09 11.3967378648 -71 17 41.554528260   12.786 12.543 14.160   DQ 661 0
17 Gaia 19ery CV* 04 09 59.720 +69 14 39.00           ~ 2 0
18 ASASSN -14ka CV* 04 20 39.7567784115 -62 45 00.931882643           ~ 4 0
19 ASASSN -15pw CV* 04 46 39.4 -51 32 54           ~ 2 0
20 Gaia 18dqe CV* 04 58 32.0543241183 -32 49 00.669963351           ~ 2 0
21 ASASSN -18abu CV* 05 17 04.530 -25 31 03.40           ~ 2 0
22 CRTS J052209.7-350530 CV* 05 22 09.6844036968 -35 05 29.730573852           ~ 8 0
23 Gaia 22ddq CV* 06 04 26.8 -11 57 45           ~ 1 0
24 ZTF J062724.38+161329.6 CV* 06 27 24.3864212892 +16 13 29.678488251           ~ 7 0
25 Gaia 17ber CV* 06 33 04.7740943006 +03 24 22.807413433           ~ 2 0
26 Gaia 21bge CV* 06 41 27.5 +13 48 16           ~ 1 0
27 Gaia 19ajr CV* 07 00 17.5872028834 -34 20 30.195388264           ~ 2 0
28 Gaia DR3 3160845829619283840 CV* 07 01 01.7207520352 +12 18 32.615842712           ~ 2 0
29 ASASSN -16an CV* 07 08 16.6078312071 -12 45 44.742299841           ~ 4 0
30 Gaia 18dmg CV* 07 10 43.650 +04 19 30.40           ~ 2 0
31 Gaia 18dqz CV* 07 16 10.3300747617 -01 30 50.239333675           ~ 2 0
32 Gaia 21bct CV* 07 21 34.3 -07 21 14           ~ 1 0
33 Gaia 19dvg CV* 07 22 19.0 +46 49 04           ~ 1 0
34 Gaia 20eac CV* 07 23 20.0 -01 37 24           ~ 1 0
35 Gaia 22cnl CV* 07 34 24.1 -76 37 58           ~ 1 0
36 Gaia 21fpm CV* 07 41 08.9 -10 55 17           ~ 1 0
37 Gaia 20beu CV* 07 52 56.9 -39 05 37           ~ 1 0
38 Gaia 20cnu CV* 07 57 47.2 -15 05 44           ~ 1 0
39 ZTF18aabnrpx CV* 08 04 08.0 +08 37 15           ~ 1 0
40 Gaia 21bbg CV* 08 19 28.8 -57 26 06           ~ 1 0
41 ASASSN -17as CV* 08 20 00.11 -29 21 45.3           ~ 2 0
42 AT 2018hwd CV* 08 39 59.7565666036 +74 02 26.828548537           DQ: 7 0
43 Gaia 19fkr CV* 08 51 18.9065745566 -42 39 48.918411030           ~ 2 0
44 Gaia 19dhr CV* 08 54 39.6 -32 24 48           ~ 1 0
45 Gaia 19brc CV* 09 05 57.1983520119 -38 28 09.217621715           ~ 2 0
46 ASASSN -18ea CV* 09 23 11.3485954648 -16 32 31.481032233           ~ 3 0
47 Gaia 21bpp CV* 09 37 07.9 -60 14 13           ~ 1 0
48 NSV 4618 CV* 09 45 51.0083357544 -19 44 00.988523196           ~ 19 0
49 Gaia 20anw CV* 10 17 50.4 -50 15 40           ~ 1 0
50 ASASSN -19gm CV* 10 24 16.930 -42 53 52.70           ~ 2 0
51 ASASSN -15aa CV* 10 49 25.9952836979 -21 47 36.468313705     15.94     ~ 7 0
52 Gaia 20bhb CV* 10 57 51.2 -53 24 25           ~ 1 0
53 Gaia DR3 5241676773513286272 CV* 10 59 24.4765590593 -62 42 27.023823952           ~ 2 0
54 Gaia 18dge CV* 11 23 59.5 -52 14 18           ~ 1 0
55 V* QZ Vir CV* 11 38 26.8241432424 +03 22 07.110298596     15.81     ~ 269 1
56 MASTER OT J114134.71-504829.3 CV* 11 41 34.71 -50 48 29.3           ~ 2 0
57 SDSS J115207.00+404947.6 CV* 11 52 07.0049089008 +40 49 47.903371500           ~ 25 0
58 CRTS CSS140430 J130136-052938 CV* 13 01 35.7065633067 -05 29 37.721746941           ~ 2 0
59 ASASSN-V J131118.90-521513.8 CV* 13 11 18.900 -52 15 13.80           ~ 2 0
60 CRTS J132536.0+210037 CV* 13 25 36.0649597104 +21 00 36.714103092           ~ 9 0
61 Gaia 18boh CV* 13 55 49.3819471946 -49 46 08.560376393           ~ 2 0
62 Gaia DR3 5846752865686929920 CV* 14 18 30.8388693230 -68 35 43.831660546           ~ 2 0
63 Gaia 22ace CV* 14 19 54.9 -51 25 15           ~ 1 0
64 Gaia 19aag CV* 15 06 18.7 -65 08 18           ~ 1 0
65 ZTF18aakticr CV* 15 13 33.1051965432 +70 37 21.977165604           ~ 7 0
66 ASASSN -21fs CV* 15 50 22.5 -62 16 58           ~ 1 0
67 ASASSN -19qy CV* 16 27 16.7716803456 +04 06 02.584811484           ~ 8 0
68 Gaia 18bgv CV* 16 29 54.6614609018 -74 41 50.736270374           ~ 3 0
69 V* V1239 Her CV* 17 02 13.2462561912 +32 29 54.159948960           M1.5e 60 0
70 Gaia 21cst CV* 17 18 59.8 -73 58 16           ~ 1 0
71 Gaia 21apv CV* 17 57 58.9 +24 24 27           ~ 2 0
72 ZTF18abstqob CV* 18 23 47.0 -16 30 03           ~ 1 0
73 Gaia 19bwi CV* 18 42 53.4 -03 27 34           ~ 1 0
74 ASASSN -15ea CV* 18 50 50.5804363560 +40 44 05.588511703           ~ 4 0
75 ASASSN -21dr CV* 18 52 49.6 -24 50 28           ~ 1 0
76 Gaia 17aqz CV* 18 53 33.530 +22 35 59.20           ~ 2 0
77 SV* SON 9364 CV* 18 56 51.4858075976 +53 40 08.986322048   16.185 15.645 15.628   ~ 6 0
78 Gaia 20dxs CV* 19 00 42.7 -27 20 55           ~ 1 0
79 ZTF19aaylohn CV* 19 06 28.2 +08 36 50           ~ 1 0
80 ATO J286.9977+39.5706 CV* 19 07 59.4556355367 +39 34 14.223659751           ~ 3 0
81 ASASSN -20kh CV* 19 17 12.8 -14 27 17           ~ 1 0
82 Gaia 19fgn CV* 19 22 54.6 -18 38 36           ~ 1 0
83 2MASS J19274850+4447248 CV* 19 27 48.5231707296 +44 47 24.469436004           ~ 18 0
84 ASASSN -19xi CV* 19 28 30.030 -74 10 53.10           ~ 2 0
85 ZTF J193724.89+152557.0 CV* 19 37 24.90 +15 25 57.1           ~ 3 0
86 ZTF J193852.32+305412.1 CV* 19 38 52.32 +30 54 12.2           ~ 3 0
87 Gaia 20akg CV* 20 11 01.2 +28 17 23           ~ 1 0
88 Gaia 18dvx CV* 20 13 59.3 +36 54 15           ~ 1 0
89 ASASSN -15pb CV* 20 14 23.0 -63 37 58           ~ 2 0
90 ZTF18achegif CV* 20 19 34.2 +06 13 55           ~ 1 0
91 Gaia 16bxp CV* 20 22 11.6 +31 49 06           ~ 1 0
92 Gaia 18buk CV* 20 25 42.6 +26 20 44           ~ 1 0
93 ZTF19acxzdwq CV* 20 42 56.3160840696 +12 44 58.437344940           ~ 2 0
94 AT 2016dvk CV* 20 43 59.58 +42 03 25.4           ~ 2 0
95 Gaia 18dlr CV* 20 52 58.0 +45 54 19           ~ 1 0
96 Gaia 20cmj CV* 20 53 50.2 +39 02 26           ~ 1 0
97 MASTER OT J210316.39+314913.6 CV* 21 03 16.4723499456 +31 49 13.773553320   16.1   16.0   ~ 3 0
98 Gaia 21cuu CV* 21 15 48.8 -37 44 43           ~ 1 0
99 Gaia DR2 2177784092519048704 CV* 21 28 20.0918896054 +55 28 47.848834780           ~ 2 0
100 ASASSN -13cl CV* 21 38 05.0421011592 +26 38 19.677570720     17.87     ?+K4 10 0
101 ZTF18abwnzaf CV* 21 38 06.62 +32 19 42.1           ~ 2 0
102 Gaia 21apu CV* 21 40 58.4 +28 28 38           ~ 1 0
103 Gaia 20eja CV* 21 55 01.4 +49 58 09           ~ 1 0
104 ZTF19aassvxn CV* 22 00 33.5 +37 38 49           ~ 1 0
105 Gaia 21azp CV* 22 12 13.9 +61 20 02           ~ 1 0
106 ASASSN -18wn CV* 22 55 51.280 -80 45 18.30           ~ 3 0
107 V* EI Psc CV* 23 29 54.2146447848 +06 28 11.596023228   16.86 16.22     ~ 141 0

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