Abstract
The current state of evidence for planets around evolved star binaries is reviewed. The small sizes of compact evolved stars leads to sharp features when they are eclipsed by binary companions, enabling these eclipses to be used as precise clocks. In principle, these measurements are sensitive enough to detect the perturbations due to super-Earth mass planets in decade-long orbits around these binaries. Significant timing perturbations have now been measured in dozens of systems, with planetary orbits proposed in many cases, often with multiple planets required to fit the observed variations. However, the current situation is unclear, with almost all proposed orbits found to be inconsistent with new data or proving to be dynamically unstable. Variations in the internal structure of the companion stars are a probable source of noise in these measurements, although proposed mechanisms struggle to explain the magnitude of the timing variations seen in many systems. Growing evidence that evolved star binaries can possess circumbinary discs that bear a striking similarity to protoplanetary discs around young stars demonstrates the need for progress in this field, since they may be key sites of second-generation planet formation. Such progress is likely imminent, given the large number of newly discovered systems with either guaranteed timing stability or independent clocks.
Thomas R. Marsh died before publication of this work was completed.
References
Almeida LA, Jablonski F (2011) Two bodies with high eccentricity around the cataclysmic variable QS Vir. In: Sozzetti A, Lattanzi MG Boss AP (eds) The astrophysics of planetary systems: formation, structure, and dynamical evolution, vol 276, pp 495–496. https://doi.org/10.1017/S1743921311020941
Almeida LA, Pereira ES, Borges GM et al (2020) Eclipse timing variation of GK Vir: evidence of a possible Jupiter-like planet in a circumbinary orbit. MNRAS 497(3):4022–4029
Anugu N, Kluska J, Gardner T et al (2023) Three-dimensional orbit of AC her determined: binary-induced truncation cannot explain the large cavity in this post-AGB transition disk. ApJ 950(2):149
Applegate JH (1992) A mechanism for orbital period modulation in close binaries. ApJ 385:621
Applegate JH, Patterson J (1987) Magnetic activity, tides, and orbital period changes in close binaries. ApJ 322:L99
Barlow BN, Wade RA, Liss SE (2012) The Rømer delay and mass ratio of the sdB+dM binary 2M 1938+4603 from Kepler eclipse timings. ApJ 753(2):101
Bear E, Soker N (2014) First- versus second-generation planet formation in post-common envelope binary (PCEB) planetary systems. MNRAS 444(2):1698–1704
Beuermann K, Hessman FV, Dreizler S et al (2010) Two planets orbiting the recently formed post-common envelope binary NN Serpentis. A&A 521:L60
Beuermann K, Buhlmann J, Diese J et al (2011) The giant planet orbiting the cataclysmic binary DP Leonis. A&A 526:A53
Beuermann K, Dreizler S, Hessman FV, Deller J (2012) The quest for companions to post-common envelope binaries. III. A reexamination of <ASTROBJ>HW Virginis</ASTROBJ>. A&A 543:A138
Bours MCP, Marsh TR, Parsons SG et al (2016) Long-term eclipse timing of white dwarf binaries: an observational hint of a magnetic mechanism at work. MNRAS 460(4):3873–3887
Brinkworth CS, Marsh TR, Dhillon VS, Knigge C (2006) Detection of a period decrease in NN Ser with ULTRACAM: evidence for strong magnetic braking or an unseen companion. MNRAS 365(1):287–295
Brown AJ, Parsons SG, Littlefair SP et al (2022) Characterizing eclipsing white dwarf M dwarf binaries from multiband eclipse photometry. MNRAS 513(2):3050–3064
Brown AJ, Parsons SG, van Roestel J et al (2023) Photometric follow-up of 43 new eclipsing white dwarf plus main-sequence binaries from the ZTF survey. MNRAS 521(2):1880–1896
Brown-Sevilla SB, Nascimbeni V, Borsato L et al (2021) A new photometric and dynamical study of the eclipsing binary star HW Virginis. MNRAS 506(2):2122–2135
Burdge KB, Prince TA, Fuller J et al (2020) A systematic search of Zwicky Transient Facility data for ultracompact binary LISA-detectable gravitational-wave sources. ApJ 905(1):32
Copperwheat CM, Morales-Rueda L, Marsh TR, Maxted PFL, Heber U (2011) Radial-velocity measurements of subdwarf B stars. MNRAS 415(2):1381–1395
Dhillon VS, Marsh TR, Stevenson MJ et al (2007) ULTRACAM: an ultrafast, triple-beam CCD camera for high-speed astrophysics. MNRAS 378(3):825–840
Dhillon VS, Bezawada N, Black M et al (2021) HiPERCAM: a quintuple-beam, high-speed optical imager on the 10.4-m Gran telescopio canarias. MNRAS 507(1):350–366
Doyle LR, Carter JA, Fabrycky DC et al (2011) Kepler-16: a transiting circumbinary planet. Science 333(6049):1602
Dvorak R (1982) Planetenbahnen in Doppelsternsystemen. Oesterreichische Akad Wiss Math naturwissenschaftliche Klasse Sitzungsberichte Abteilung 191(10):423–437
Er H, Özdönmez A, Nasiroglu I (2021) New observations of the eclipsing binary system NY Vir and its candidate circumbinary planets. MNRAS 507(1):809–817
Esmer EM, Baştürk Ö, Hinse TC, Selam SO, Correia ACM (2021) Revisiting the analysis of HW Virginis eclipse timing data. I. A frequentist data modeling approach and a dynamical stability analysis. A&A 648:A85
Farihi J, Parsons SG, Gänsicke BT (2017) A circumbinary debris disk in a polluted white dwarf system. Nat Astron 1:0032
Gänsicke BT, Koester D, Farihi J et al (2012) The chemical diversity of exo-terrestrial planetary debris around white dwarfs. MNRAS 424(1):333–347
Goździewski K, Nasiroglu I, Słowikowska A et al (2012) On the HU Aquarii planetary system hypothesis. MNRAS 425(2):930–949
Goździewski K, Słowikowska A, Dimitrov D et al (2015) The HU Aqr planetary system hypothesis revisited. MNRAS 448(2):1118–1136
Guinan EF, Ribas I (2001) The best brown dwarf yet? A companion to the hyades eclipsing binary V471 Tauri. ApJ 546(1):L43–L47
Han ZT, Qian SB, Zhu LY et al (2018) DE CVn: an eclipsing post-common envelope binary with a circumbinary disk and a giant planet. ApJ 868(1):53
Harding LK, Hallinan G, Milburn J et al (2016) CHIMERA: a wide-field, multi-colour, high-speed photometer at the prime focus of the Hale telescope. MNRAS 457(3):3036–3049
Hardy A, Schreiber MR, Parsons SG et al (2015) The first science results from sphere: disproving the predicted brown dwarf around V471 Tau. ApJ 800(2):L24
Hermes JJ (2013) Complications to the planetary hypothesis for GD 66. In: American Astronomical Society Meeting Abstracts #221, American Astronomical Society Meeting Abstracts, vol 221, p 424.04
Hermes JJ, Kilic M, Brown WR et al (2012) Rapid orbital decay in the 12.75-minute binary white dwarf J0651+2844. ApJ 757(2):L21
Hon M, Huber D, Rui NZ et al (2023) A close-in giant planet escapes engulfment by its star. Nature 618(7967):917–920
Horner J, Hinse TC, Wittenmyer RA, Marshall JP, Tinney CG (2012) A dynamical analysis of the proposed circumbinary HW Virginis planetary system. MNRAS 427(4):2812–2823
Horner J, Wittenmyer RA, Hinse TC et al (2013) A detailed dynamical investigation of the proposed QS Virginis planetary system. MNRAS 435(3):2033–2039
ibanoǧlu C, Evren S, Taş G, Çakırlı Ö (2005) New findings based on long-term photometric observations of the eclipsing binary V471 Tauri. MNRAS 360(3):1077–1084
Ivanova N, Justham S, Chen X et al (2013) Common envelope evolution: where we stand and how we can move forward. A&A Rev 21:59
Jensen KA, Swank JH, Petre R et al (1986) EXOSAT observations of V471 Tauri: a 9.25 minute white dwarf pulsation and orbital phase dependent x-ray dips. ApJ 309:L27
Khangale ZN, Potter SB, Kotze EJ, Woudt PA, Breytenbach H (2019) High-speed photometry of the eclipsing polar UZ Fornacis. A&A 621:A31
Kluska J, Van Winckel H, Coppée Q et al (2022) A population of transition disks around evolved stars: Fingerprints of planets. Catalog of disks surrounding Galactic post-AGB binaries. A&A 658:A36
Kundra E, Hambálek Ľ, Vanaverbeke S et al (2022) Variability of eclipse timing: the case of V471 Tauri. MNRAS 517(4):5358–5367
Lagos F, Schreiber MR, Zorotovic M et al (2021) WD 1856 b: a close giant planet around a white dwarf that could have survived a common envelope phase. MNRAS 501(1):676–682
Lanza AF (2020) Internal magnetic fields, spin-orbit coupling, and orbital period modulation in close binary systems. MNRAS 491(2):1820–1831
Lee JW, Kim SL, Kim CH et al (2009) The sdB+M eclipsing system HW Virginis and its circumbinary planets. AJ 137(2):3181–3190
Lohsen E (1974) Period variations of the white dwarf eclipsing binary BD +16 516. A&A 36:459–460
Mai X, Mutel RL (2022) Eclipse timing modelling of three post-common envelope binaries: hybrid solutions. MNRAS 513(2):2478–2490
Marsh TR, Pringle JE (1990) Changes in the orbital periods of close binary stars. ApJ 365:677
Marsh TR, Parsons SG, Bours MCP et al (2014) The planets around NN Serpentis: still there. MNRAS 437(1):475–488
Martin DV, El-Badry K, Hodžić VK et al (2021) TOI-1259Ab – a gas giant planet with 2.7 per cent deep transits and a bound white dwarf companion. MNRAS 507(3):4132–4148
Martin RG, Livio M, Palaniswamy D (2016) Why are pulsar planets rare? ApJ 832(2):122
Matese JJ, Whitmire DP (1983) Alternate period changes in close binary systems. A&A 117:L7–L9
Menzies JW, Marang F (1986) A new B-subdwarf eclipsing binary with an extremely short period. In: Hearnshaw JB Cottrell PL (eds) Instrumentation and research programmes for small telescopes, vol 118. Springer, Berlin, p 305
Muñoz DJ, Petrovich C (2020) Kozai migration naturally explains the white dwarf planet WD1856 b. ApJ 904(1):L3
Mustill AJ, Marshall JP, Villaver E et al (2013) Main-sequence progenitor configurations of the NN Ser candidate circumbinary planetary system are dynamically unstable. MNRAS 436(3):2515–2521
Navarrete FH, Schleicher DRG, Käpylä PJ et al (2020) Magnetohydrodynamical origin of eclipsing time variations in post-common-envelope binaries for solar mass secondaries. MNRAS 491(1):1043–1056
Navarrete FH, Käpylä PJ, Schleicher DRG, Ortiz CA, Banerjee R (2022a) Origin of eclipsing time variations: contributions of different modes of the dynamo-generated magnetic field. A&A 663:A90
Navarrete FH, Schleicher DRG, Käpylä PJ, Ortiz-Rodríguez CA, Banerjee R (2022b) Origin of eclipsing time variations in post-common-envelope binaries: role of the centrifugal force. A&A 667:A164
Nelson B, Young A (1970) A New Eclipsing Binary Containing a Very Hot White Dwarf. PASP 82(487):699
O’Donoghue D, Koen C, Kilkenny D et al (2003) The DA+dMe eclipsing binary EC13471-1258: its cup runneth over …just. MNRAS 345(2):506–528
O’Donoghue D, Buckley DAH, Balona LA et al (2006) First science with the Southern African Large Telescope: peering at the accreting polar caps of the eclipsing polar SDSS J015543.40+002807.2. MNRAS 372(1):151–162
Oshagh M, Heller R, Dreizler S (2017) How eclipse time variations, eclipse duration variations, and radial velocities can reveal S-type planets in close eclipsing binaries. MNRAS 466(4):4683–4691
Parsons SG, Marsh TR, Copperwheat CM et al (2010a) Precise mass and radius values for the white dwarf and low mass M dwarf in the pre-cataclysmic binary NN Serpentis. MNRAS 402(4):2591–2608
Parsons SG, Marsh TR, Copperwheat CM et al (2010b) Orbital period variations in eclipsing post-common-envelope binaries. MNRAS 407(4):2362–2382
Parsons SG, Marsh TR, Bours MCP et al (2014) Timing variations in the secondary eclipse of NN Ser. MNRAS 438(1):L91–L95
Parsons SG, Hernandez MS, Toloza O et al (2023) The white dwarf binary pathways survey – IX. Three long period white dwarf plus subgiant binaries. MNRAS 518(3):4579–4594
Pulley D, Sharp ID, Mallett J, von Harrach S (2022) Eclipse timing variations in post-common envelope binaries: are they a reliable indicator of circumbinary companions? MNRAS 514(4):5725–5738
Qian SB, Dai ZB, Liao WP et al (2009) A Substellar Companion to the White Dwarf-Red Dwarf Eclipsing Binary NN Ser. ApJ 706(1):L96–L99
Qian SB, Liao WP, Zhu LY et al (2010) A giant planet in orbit around a magnetic-braking hibernating cataclysmic variable. MNRAS 401(1):L34–L38
Rattanamala R, Awiphan S, Komonjinda S et al (2023) Eclipse timing variations in the WD + dM eclipsing binary RR Cae. MNRAS 523(4):5086–5108
Sale O, Bogensberger D, Clarke F, Lynas-Gray AE (2020) Eclipse time variations in the post-common envelope binary V470 Cam. MNRAS 499(3):3071–3084
Schleicher DRG, Dreizler S (2014) Planet formation from the ejecta of common envelopes. A&A 563:A61
Schröder KP, Smith RC (2008) Distant future of the Sun and Earth revisited. MNRAS 386(1):155–163
Standing MR, Sairam L, Martin DV et al (2023) Radial-velocity discovery of a second planet in the TOI-1338/BEBOP-1 circumbinary system. Nat Astron 7:702–714
Vaccaro TR, Wilson RE, Van Hamme W, Terrell D (2015) The V471 Tauri system: a multi-data-type probe. ApJ 810(2):157
van Roestel J, Kupfer T, Bell KJ et al (2021) ZTFJ0038+2030: a long-period eclipsing white dwarf and a substellar companion. ApJ 919(2):L26
Vanderbosch ZP, Clemens JC, Dunlap BH, Winget DE (2017) V471 Tauri: examining eclipse timing variations with two independent clocks. In: Tremblay PE, Gaensicke B Marsh T (eds) 20th European White Dwarf Workshop, Astronomical Society of the Pacific Conference Series, vol 509, pp 571–574
Vanderburg A, Rappaport SA, Xu S et al (2020) A giant planet candidate transiting a white dwarf. Nature 585(7825):363–367
Völschow M, Banerjee R, Hessman FV (2014) Second generation planet formation in NN Serpentis? A&A 562:A19
Völschow M, Schleicher DRG, Perdelwitz V, Banerjee R (2016) Eclipsing time variations in close binary systems: planetary hypothesis vs. Applegate mechanism. A&A 587:A34
Vos J, Østensen RH, Vučković M, Van Winckel H (2017) The orbits of subdwarf-B + main-sequence binaries. III. The period-eccentricity distribution. A&A 605:A109
Warner B (1988) Quasiperiodicity in cataclysmic variable stars caused by solar-type magnetic cycles. Nature 336(6195):129–134
Welsh WF, Orosz JA, Carter JA et al (2012) Transiting circumbinary planets Kepler-34 b and Kepler-35 b. Nature 481(7382):475–479
Zhu LY, Qian SB, Fernández Lajús E, Wang ZH, Li LJ (2019) A close-in substellar object orbiting the sdOB-type eclipsing-binary system NSVS 14256825. Research in Astronomy and Astrophysics 19(9):134
Zorotovic M, Schreiber MR (2013) Origin of apparent period variations in eclipsing post-common-envelope binaries. A&A 549:A95
Acknowledgements
We thank David Pulley for his kind permission to reproduce two of his figures. SGP acknowledges the support of a Science and Technology Facilities Council (STFC) Ernest Rutherford Fellowship.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Section Editor information
Rights and permissions
Copyright information
© 2024 Springer Nature Switzerland AG
About this entry
Cite this entry
Parsons, S.G., Marsh, T.R. (2024). Circumbinary Planets Around Evolved Stars. In: Deeg, H.J., Belmonte, J.A. (eds) Handbook of Exoplanets . Springer, Cham. https://doi.org/10.1007/978-3-319-30648-3_96-2
Download citation
DOI: https://doi.org/10.1007/978-3-319-30648-3_96-2
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-30648-3
Online ISBN: 978-3-319-30648-3
eBook Packages: Springer Reference Physics and AstronomyReference Module Physical and Materials ScienceReference Module Chemistry, Materials and Physics
Publish with us
Chapter history
-
Latest
Circumbinary Planets Around Evolved Stars- Published:
- 13 March 2024
DOI: https://doi.org/10.1007/978-3-319-30648-3_96-2
-
Original
Circumbinary Planets Around Evolved Stars- Published:
- 04 October 2017
DOI: https://doi.org/10.1007/978-3-319-30648-3_96-1