2020
DOI: 10.1093/pasj/psz144
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Thermal-viscous instability in tilted accretion disks: A possible application to IW Andromeda-type dwarf novae

Abstract: IW And stars are a subgroup of dwarf novae characterized by repetitive light variations of the intermediate-brightness state with oscillations, which is terminated by brightening. This group of dwarf novae is also known to exhibit a wide variety even within one system in long-term light curves including usual dwarf-nova outbursts, Z Cam-type standstills, and so on, besides the typical IW And-type variations mentioned above. Following the recent observations suggesting that some IW And stars seem to have tilted… Show more

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Cited by 23 publications
(38 citation statements)
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References 49 publications
(65 reference statements)
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“…What about the anomalously small "superhump" period deficit we have found in V341 Ara? The super-orbital variations in the NL simulations presented in Kimura et al (2020) are driven entirely by the behaviour of the outer disc. Moreover, Kimura et al (2020) note that a gap may form in the accretion disc near the radius of the stream-disc impact point.…”
Section: Most Of the System Parameters Investigated Bymentioning
confidence: 90%
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“…What about the anomalously small "superhump" period deficit we have found in V341 Ara? The super-orbital variations in the NL simulations presented in Kimura et al (2020) are driven entirely by the behaviour of the outer disc. Moreover, Kimura et al (2020) note that a gap may form in the accretion disc near the radius of the stream-disc impact point.…”
Section: Most Of the System Parameters Investigated Bymentioning
confidence: 90%
“…The light curves produced by their simulations depend strongly on the adopted system parameters and tilt angles, and some of them show promise as models for the IW And phenomenon. Kimura et al (2020) lie in a range where ordinary dwarf nova eruptions would be expected for non-tilted discs. However, the highest accretion rates they consider would produce steady accretion in the absence of any disc tilt.…”
Section: Large-amplitude Super-orbital Variations From Tilted Precessmentioning
confidence: 94%
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