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| Query : 2017MNRAS.472.2937H |
2017MNRAS.472.2937H - Mon. Not. R. Astron. Soc., 472, 2937-2944 (2017/December-2)
Roche tomography of cataclysmic variables - VIII. The irradiated and spotted dwarf nova, SS Cygni.
HILL C.A., SMITH R.C., HEBB L. and SZKODY P.
Abstract (from CDS):
We present the results of our spectroscopic study of the dwarf nova SS Cyg, using Roche tomography to map the stellar surface and derive the system parameters. Given that this technique takes into account the inhomogeneous brightness distribution on the surface of the secondary star, our derived parameters are (in principle) the most robust yet found for this system. Furthermore, our surface maps reveal that the secondary star is highly spotted, with strongly asymmetric irradiation on the inner hemisphere. Moreover, by constructing Doppler tomograms of several Balmer emission lines, we find strong asymmetric emission from the irradiated secondary star, and an asymmetric accretion disc that exhibits spiral structures.
Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society
Journal keyword(s): stars: dwarf novae - stars: imaging - stars: individual: SS Cygni - novae, cataclysmic variables - starspots - starspots
Simbad objects: 8
| Number of rows : 8 |
| 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 | HD 24916 | PM* | 03 57 28.6990190160 | -01 09 34.070478444 | 10.224 | 9.166 | 8.014 | 7.336 | 6.724 | K4V | 157 | 0 |
| 2 | BD+52 913 | WD* | 05 05 30.6180977592 | +52 49 51.919301604 | 10.25 | 11.44 | 11.69 | 11.93 | 12.108 | DA.8 | 1153 | 0 |
| 3 | V* BV Cen | CV* | 13 31 19.5105743208 | -54 58 33.657394152 | 13.151 | 12.746 | 12.226 | G5-8IV/V | 196 | 0 | ||
| 4 | V* AE Aqr | CV* | 20 40 09.1598959176 | -00 52 15.055595220 | 12.46 | 10.40 | 10.191 | K3-5IV/V | 705 | 0 | ||
| 5 | V* HU Aqr | CV* | 21 07 58.1944529400 | -05 17 40.557671916 | 16.198 | 15.814 | 14.891 | D+M4V | 292 | 1 | ||
| 6 | V* SS Cyg | CV* | 21 42 42.8034497592 | +43 35 09.867842484 | 11.07 | 12.651 | 12.032 | 9.326 | K5V | 1324 | 1 | |
| 7 | V* RU Peg | CV* | 22 14 02.5505986656 | +12 42 11.278107972 | 12 | sdBe+G8IV:n | 322 | 0 | ||||
| 8 | V* IP Peg | CV* | 23 23 08.5362249504 | +18 24 59.206884012 | M2 | 395 | 0 |
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