ZTF J1901+5309: A 40.6-Minute Orbital Period Eclipsing Double White Dwarf System. (arXiv:2004.00456v1 [astro-ph.HE])
<a href="http://arxiv.org/find/astro-ph/1/au:+Coughlin_M/0/1/0/all/0/1">Michael W. Coughlin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Burdge_K/0/1/0/all/0/1">Kevin Burdge</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Phinney_E/0/1/0/all/0/1">E. Sterl Phinney</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Roestel_J/0/1/0/all/0/1">Jan van Roestel</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bellm_E/0/1/0/all/0/1">Eric C. Bellm</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dekany_R/0/1/0/all/0/1">Richard G. Dekany</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Delacroix_A/0/1/0/all/0/1">Alexandre Delacroix</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Duev_D/0/1/0/all/0/1">Dmitry A. Duev</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Feeney_M/0/1/0/all/0/1">Michael Feeney</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Graham_M/0/1/0/all/0/1">Matthew J. Graham</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kulkarni_S/0/1/0/all/0/1">S. R. Kulkarni</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kupfer_T/0/1/0/all/0/1">Thomas Kupfer</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Laher_R/0/1/0/all/0/1">Russ R. Laher</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Masci_F/0/1/0/all/0/1">Frank J. Masci</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Prince_T/0/1/0/all/0/1">Thomas A. Prince</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Riddle_R/0/1/0/all/0/1">Reed Riddle</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rosnet_P/0/1/0/all/0/1">Philippe Rosnet</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Smith_R/0/1/0/all/0/1">Roger Smith</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Serabyn_E/0/1/0/all/0/1">Eugene Serabyn</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Walters_R/0/1/0/all/0/1">Richard Walters</a>
The Zwicky Transient Facility has begun to discover binary systems with
orbital periods that are less than 1,hr. Combined with dedicated follow-up
systems, which allow for high-cadence photometry of these sources, systematic
confirmation and characterization of these sources are now possible. Here, we
report the discovery of ZTF J190125.42+530929.5, a 40.6,min orbital period,
eclipsing double white-dwarf binary. Both photometric and spectroscopic
modeling confirm its nature, yielding an estimated inclination of $i =
86.2^{+0.6}_{-0.2},rm degrees$ and primary and secondary effective
temperatures of $textrm{T}_textrm{eff} = 28,000^{+500}_{-500},K$ and
$textrm{T}_textrm{eff} = 17,600^{+400}_{-400},K$ respectively. This system
adds to a growing list of sources for future gravitational-wave detectors and
contributes to the demographic analysis of double degenerates.
The Zwicky Transient Facility has begun to discover binary systems with
orbital periods that are less than 1,hr. Combined with dedicated follow-up
systems, which allow for high-cadence photometry of these sources, systematic
confirmation and characterization of these sources are now possible. Here, we
report the discovery of ZTF J190125.42+530929.5, a 40.6,min orbital period,
eclipsing double white-dwarf binary. Both photometric and spectroscopic
modeling confirm its nature, yielding an estimated inclination of $i =
86.2^{+0.6}_{-0.2},rm degrees$ and primary and secondary effective
temperatures of $textrm{T}_textrm{eff} = 28,000^{+500}_{-500},K$ and
$textrm{T}_textrm{eff} = 17,600^{+400}_{-400},K$ respectively. This system
adds to a growing list of sources for future gravitational-wave detectors and
contributes to the demographic analysis of double degenerates.
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