Swift/XRT Deep Galactic Plane Survey Discovery of a New Intermediate Polar Cataclysmic Variable, Swift J183920.1-045350

被引：3

作者：

Gorgone, Nicholas M. ^{[1
,2
]}

Woudt, Patrick A. ^{[3
]}

Buckley, David ^{[4
]}

Mukai, Koji ^{[5
,6
,7
]}

Kouveliotou, Chryssa ^{[1
,2
]}

Huppenkothen, Daniela ^{[8
]}

Gogus, Ersin ^{[9
]}

Bellm, Eric ^{[10
]}

Linford, Justin D. ^{[11
]}

van der Horst, Alexander J. ^{[1
,2
]}

Baring, Matthew G. ^{[12
]}

Hartmann, Dieter ^{[13
]}

Barrett, Paul ^{[1
]}

Cenko, Bradley ^{[14
,15
]}

Graham, Melissa ^{[10
]}

Granot, Johnathan ^{[1
,16
]}

Harrison, Fiona ^{[17
]}

Kennea, Jamie ^{[18
]}

O'Connor, Brendan M. ^{[1
,2
]}

Potter, Stephen ^{[4
]}

Stern, Daniel ^{[19
]}

Slane, Patrick ^{[20
]}

Wijers, Ralph ^{[21
]}

机构：

[1] George Washington Univ, Dept Phys, Washington, DC 20052 USA

[2] George Washington Univ, Astron Phys & Stat Inst Sci APSIS, Washington, DC 20052 USA

[3] Univ Cape Town, Dept Astron, Private Bag X3, ZA-7701 Rondebosch, South Africa

[4] South African Astron Observ, POB 9, ZA-7935 Observatory, South Africa

[5] NASA, CRESST II, GSFC, Greenbelt, MD 20771 USA

[6] NASA, Xray Astrophys Lab, GSFC, Greenbelt, MD 20771 USA

[7] Univ Maryland Baltimore Cty, Dept Phys, 1000 Hilltop Circle, Baltimore, MD 21250 USA

[8] SRON Netherlands Inst Space Res, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands

[9] Sabanci Univ, Fac Engn & Nat Sci, TR-34956 Istanbul, Turkey

[10] Univ Washington, DIRAC Inst, Dept Astron, 3910 15th Ave NE, Seattle, WA 98195 USA

[11] Natl Radio Astron Observ, POB O, Socorro, NM 87801 USA

[12] Rice Univ, Dept Phys & Astron, MS 108,6100 Main St, Houston, TX 77251 USA

[13] Clemson Univ, Dept Phys & Astron, Kinard Lab Phys, Clemson, SC 29634 USA

[14] NASA, Astrophys Sci Div, Goddard Space Flight Ctr, MC 661, Greenbelt, MD 20771 USA

[15] Univ Maryland, Joint Space Sci Inst, College Pk, MD 20742 USA

[16] Open Univ Israel, Dept Nat Sci, POB 808, IL-43537 Raanana, Israel

[17] CALTECH, Cahill Ctr Astrophys, 1216 East Calif Blvd, Pasadena, CA 91125 USA

[18] Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA

[19] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr,Mail Stop 169-221, Pasadena, CA 91109 USA

[20] Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

[21] Univ Amsterdam, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands

来源：

ASTROPHYSICAL JOURNAL | 2021年 / 923卷 / 02期

基金：

新加坡国家研究基金会; 美国国家航空航天局;

关键词：

SPACE DENSITY; PHOTOMETRY; EMISSION; COMPLEX; SAMPLE;

D O I：

10.3847/1538-4357/ac2738

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 H alpha, 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 2.261(-0.83)(+1.93) kpc, which is larger than typical, extending the reach of the CV population in our Galaxy.

引用

页数：13

共 7 条

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