The Superoutburst Duration versus Orbital Period Relation for AM CVn stars

Abstract

We examine the relationship between superoutburst duration $t_{\mathrm{dur}}$ and orbital period $P_{\mathrm{orb}}$ in AM CVn ultra-compact binary systems. We show that the previously determined steep relation derived by Levitan et al (2015) was strongly influenced by the inclusion of upper limits for systems with a relatively long orbital period in their fit. Excluding the upper limit values and including $t_{\mathrm{dur}}$ values for three systems at long $P_{\mathrm{orb}}$ which were not considered previously, then $d\log (t_{\mathrm{dur}})/d\log (P_{\mathrm{orb}})$ is flat as predicted by Cannizzo & Nelemans(2015)

Accepted for publication in AJ

References in corpus (5)

• On the evolutionary status of short period cataclysmic variables
• Models of AM CVn star outbursts
• Long-term Photometric Behavior of Outbursting AM CVn Systems
• Constraining the Physics of AM Canum Venaticorum Systems with the Accretion Disk Instability Model
• Stacking Analysis of 12CO and 13CO Spectra of NGC3627: Existence of non-optically thick 12CO emission?

Cited by in corpus (10)

• Discovery and characterization of five new eclipsing AM CVn systems
• Spectroscopic and Photometric Periods of Six Ultracompact Accreting Binaries
• A systematic search for outbursting AM CVn systems with the Zwicky Transient Facility
• Evidence that short period AM CVn systems are diverse in outburst behaviour
• TACOS: TESS AM~CVn Outbursts Survey
• The outburst of a 60 min AM CVn reveals peculiar color evolution: implications for outbursts in long period double white dwarfs
• A Catalogue of Ultracompact Mass-Transferring White Dwarf Binaries
• The Fast Evolving, Tremendous and Blue Superoutburst in ASASSN-21au Reveals a Dichotomy in the Outbursts of Long-period AM CVns
• TCP J07222683$+$6220548: a new AM CVn type system with infrequent outbursts
• The Temperature versus Orbital Period relation of AM CVns: Insights from their Donors