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| Query : 2019MNRAS.486.2549H |
2019MNRAS.486.2549H - Mon. Not. R. Astron. Soc., 486, 2549-2556 (2019/June-3)
TESS observations of the asynchronous polar CD Ind: mapping the changing accretion geometry.
HAKALA P., RAMSAY G., POTTER S.B., BEARDMORE A., BUCKLEY D.A.H. and WYNN G.
Abstract (from CDS):
We present the results of near continuous TESS optical observations of the asynchronous polar CD Ind (RX J2115-5840). The 27.9 d long light curve, with 2 min resolution, reveals remarkable changes in the magnetic accretion geometry of the system over the 7.3 d beat period. We have modelled the changes in the optical spin period pulse shape using a cyclotron emission mapping technique. The resulting cyclotron emission maps of the magnetic white dwarf reveal how the accretion geometry changes from single- to two-pole accretion and back over the beat cycle. Finally, we present the results from particle-based numerical magnetic accretion simulations, which agree with our interpretation of the changing accretion scenario.
Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society
Journal keyword(s): accretion, accretion discs - stars: individual: CD Ind - novae, cataclysmic variables
Simbad objects: 5
| Number of rows : 5 |
| 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 | V* BY Cam | CV* | 05 42 48.8013535344 | +60 51 31.376128608 | 16.60 | ~ | 270 | 0 | ||||
| 2 | V* V1432 Aql | CV* | 19 40 11.4199326288 | -10 25 25.771706256 | 14.40 | 15.437 | ~ | 181 | 0 | |||
| 3 | V* AE Aqr | CV* | 20 40 09.1598959176 | -00 52 15.055595220 | 12.46 | 10.40 | 10.191 | K3-5IV/V | 705 | 0 | ||
| 4 | V* V1500 Cyg | No* | 21 11 36.5809818696 | +48 09 01.952490204 | ~ | 820 | 0 | |||||
| 5 | V* CD Ind | CV* | 21 15 41.0450813472 | -58 40 54.058462428 | ~ | 108 | 0 |
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