TY - JOUR
T1 - Swift/XRT Deep Galactic Plane Survey Discovery of a New Intermediate Polar Cataclysmic Variable, Swift J183920.1-045350
AU - Gorgone, Nicholas M.
AU - Woudt, Patrick A.
AU - Buckley, David
AU - Mukai, Koji
AU - Kouveliotou, Chryssa
AU - Huppenkothen, Daniela
AU - Göǧüş, Ersin
AU - Bellm, Eric
AU - Linford, Justin D.
AU - Van Der Horst, Alexander J.
AU - Baring, Matthew G.
AU - Hartmann, Dieter
AU - Barrett, Paul
AU - Cenko, Bradley
AU - Graham, Melissa
AU - Granot, Johnathan
AU - Harrison, Fiona
AU - Kennea, Jamie
AU - O'Connor, Brendan M.
AU - Potter, Stephen
AU - Stern, Daniel
AU - Slane, Patrick
AU - Wijers, Ralph
N1 - Publisher Copyright:
© 2021. The American Astronomical Society. All rights reserved.
PY - 2021/12/20
Y1 - 2021/12/20
N2 - We report on the Swift/XRT Deep Galactic Plane Survey discovery and multiwavelength follow-up observations of a new intermediate polar (IP) cataclysmic variable, Swift J183920.1-045350. A 449.7 s spin period is found in XMM-Newton and NuSTAR data, accompanied by a 459.9 s optical period that is most likely the synodic, or beat period, produced from a 5.6 hr orbital period. The orbital period is seen with moderate significance in independent long-baseline optical photometry observations taken with the ZTF and SAAO telescopes. We find that the X-ray pulse fraction of the source decreases with increasing energy. The X-ray spectra are consistent with the presence of an Fe emission line complex with both local and interstellar absorption. In the optical spectra, strong Hα, H i, He i, and He ii emission lines are observed, all common features in magnetic CVs. The source properties are thus typical of known IPs, with the exception of its estimated distance of kpc, which is larger than typical, extending the reach of the CV population in our Galaxy.
AB - We report on the Swift/XRT Deep Galactic Plane Survey discovery and multiwavelength follow-up observations of a new intermediate polar (IP) cataclysmic variable, Swift J183920.1-045350. A 449.7 s spin period is found in XMM-Newton and NuSTAR data, accompanied by a 459.9 s optical period that is most likely the synodic, or beat period, produced from a 5.6 hr orbital period. The orbital period is seen with moderate significance in independent long-baseline optical photometry observations taken with the ZTF and SAAO telescopes. We find that the X-ray pulse fraction of the source decreases with increasing energy. The X-ray spectra are consistent with the presence of an Fe emission line complex with both local and interstellar absorption. In the optical spectra, strong Hα, H i, He i, and He ii emission lines are observed, all common features in magnetic CVs. The source properties are thus typical of known IPs, with the exception of its estimated distance of kpc, which is larger than typical, extending the reach of the CV population in our Galaxy.
UR - http://www.scopus.com/inward/record.url?scp=85122917785&partnerID=8YFLogxK
U2 - 10.3847/1538-4357/ac2738
DO - 10.3847/1538-4357/ac2738
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AN - SCOPUS:85122917785
SN - 0004-637X
VL - 923
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
M1 - 243
ER -