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Total eclipse of the heart: the AM CVn Gaia14aae/ASSASN-14cn

Authors :
F. De Angeli
Chris M. Copperwheat
T. R. Marsh
Manuel A. P. Torres
L. K. Hardy
Krzysztof Ulaczyk
A. Delgado
D. L. Harrison
R. Busuttil
Z. Kołaczkowski
Nicholas A. Walton
D. W. Evans
László Szabados
Timothy Butterley
Rubina Kotak
Timo Prusti
Gerard Gilmore
Michel Dennefeld
Łukasz Wyrzykowski
E. de Miguel
Dirk Froebrich
M. Pawlak
Z. Kostrzewa-Rutkowska
O. Vince
G. van Leeuwen
V. S. Dhillon
Guy Rixon
Massimo Turatto
Ulrich Kolb
A. Hourihane
Morgan Fraser
S. P. Littlefair
B. Handzlik
Richard Wilson
J. Fernández-Hernández
Andreja Gomboc
Christopher Waters
S. Komossa
Gisella Clementini
G. Holland
J. L. Prieto
Krzysztof Z. Stanek
J. Polshaw
Eugene A. Magnier
Peter G. Jonker
A. Hamanowicz
Goran Damljanović
Detlev Koester
Andrew J. Drake
G. Altavilla
Krystian Iłkiewicz
Sergey E. Koposov
A. A. Mahabal
Christopher S. Kochanek
Thomas W.-S. Holoien
S. van Velzen
Nick Kaiser
Krzysztof A. Rybicki
L. Tomasella
Elmé Breedt
Thomas Wevers
G. Busso
A. Yoldas
Simon Hodgkin
Nadejda Blagorodnova
R. Gualandi
L. Palaversa
G. V. Simonian
P. Wielgórski
P. Burgess
Benjamin J. Shappee
David Alexander Kann
Stephen J. Smartt
J. F. Jarvis
Danny Steeghs
Boris T. Gänsicke
L. Eyer
M. Riello
K. C. Chambers
Heather Campbell
Alexander Scholz
P. Ochner
Patricia A. Whitelock
A. B. Danilet
G. Leto
University of St Andrews. School of Physics and Astronomy
Source :
Campbell, H C, Marsh, T R, Fraser, M, Hodgkin, S T, de Miguel, E, Gänsicke, B T, Steeghs, D, Hourihane, A, Breedt, E, Littlefair, S P, Koposov, S E, Wyrzykowski, Ł, Altavilla, G, Blagorodnova, N, Clementini, G, Damljanovic, G, Delgado, A, Dennefeld, M, Drake, A J, Fernández-Hernández, J, Gilmore, G, Gualandi, R, Hamanowicz, A, Handzlik, B, Hardy, L K, Harrison, D L, Iłkiewicz, K, Jonker, P G, Kochanek, C S, Kołaczkowski, Z, Kostrzewa-Rutkowska, Z, Kotak, R, van Leeuwen, G, Leto, G, Ochner, P, Pawlak, M, Palaversa, L, Rixon, G, Rybicki, K, Shappee, B J, Smartt, S J, Torres, M A P, Tomasella, L, Turatto, M, Ulaczyk, K, van Velzen, S, Vince, O, Walton, N A, Wielgórski, P, Wevers, T, Whitelock, P, Yoldas, A, De Angeli, F, Burgess, P, Busso, G, Busuttil, R, Butterley, T, Chambers, K C, Copperwheat, C, Danilet, A B, Dhillon, V S, Evans, D W, Eyer, L, Froebrich, D, Gomboc, A, Holland, G, Holoien, T W-S, Jarvis, J F, Kaiser, N, Kann, D A, Koester, D, Kolb, U, Komossa, S, Magnier, E A, Mahabal, A, Polshaw, J, Prieto, J L, Prusti, T, Riello, M, Scholz, A, Simonian, G, Stanek, K Z, Szabados, L, Waters, C & Wilson, R W 2015, ' Total eclipse of the heart: the AM CVn Gaia14aae/ASSASN-14cn ', Monthly Notices of the Royal Astronomical Society, vol. 452, no. 1, pp. 1060-1067 . https://doi.org/10.1093/mnras/stv1224, Arias Montano. Repositorio Institucional de la Universidad de Huelva, instname, Monthly Notices of the Royal Astronomical Society, Campbell, H C, Marsh, T R, Fraser, M, Hodgkin, S T, Miguel, E D, Gänsicke, B T, Steeghs, D, Hourihane, A, Breedt, E, Littlefair, S P, Koposov, S E, Wyrzykowski, L, Altavilla, G, Blagorodnova, N, Clementini, G, Damljanovic, G, Delgado, A, Dennefeld, M, Drake, A J, Fernández-Hernández, J, Gilmore, G, Gualandi, R, Hamanowicz, A, Handzlik, B, Hardy, L K, Harrison, D L, Ilkiewicz, K, Jonker, P G, Kochanek, C S, Kolaczkowski, Z, Kostrzewa-Rutkowska, Z, Kotak, R, Leeuwen, G V, Leto, G, Ochner, P, Pawlak, M, Palaversa, L, Rixon, G, Rybicki, K, Shappee, B J, Smartt, S J, Torres, M A P, Tomasella, L, Turatto, M, Ulaczyk, K, Velzen, S V, Vince, O, Walton, N A, Wielgórski, P, Wevers, T, Whitelock, P, Yoldas, A, Angeli, F D, Burgess, P, Busso, G, Busuttil, R, Butterley, T, Chambers, K C, Copperwheat, C, Danilet, A B, Dhillon, V S, Evans, D W, Eyer, L, Froebrich, D, Gomboc, A, Holland, G, Holoien, T W-S, Jarvis, J F, Kaiser, N, Kann, D A, Koester, D, Kolb, U, Komossa, S, Magnier, E A, Mahabal, A, Polshaw, J, Prieto, J L, Prusti, T, Riello, M, Scholz, A, Simonian, G, Stanek, K Z, Szabados, L, Waters, C & Wilson, R W 2015, ' Total eclipse of the heart: The AM CVn Gaia14aae / ASSASN-14cn ', Monthly Notices of the Royal Astronomical Society . https://doi.org/10.1093/mnras/stv1224, Monthly Notices of the Royal Astronomical Society, 452, 1060-1067, Monthly Notices of the Royal Astronomical Society, 452, 1, pp. 1060-1067, Monthly Notices Of The Royal Astronomical Society, Artículos CONICYT, CONICYT Chile, instacron:CONICYT
Publication Year :
2015

Abstract

We report the discovery and characterisation of a deeply eclipsing AM CVn-system, Gaia14aae (= ASSASN-14cn). Gaia14aae was identified independently by the All-Sky Automated Survey for Supernovae (ASAS-SN; Shappee et al. 2014) and by the Gaia Science Alerts project, during two separate outbursts. A third outburst is seen in archival Pan-STARRS-1 (PS1; Schlafly et al. 2012; Tonry et al. 2012; Magnier et al. 2013) and ASAS-SN data. Spectroscopy reveals a hot, hydrogen-deficient spectrum with clear double-peaked emission lines, consistent with an accreting double degenerate classification. We use follow-up photometry to constrain the orbital parameters of the system. We find an orbital period of 49.71 min, which places Gaia14aae at the long period extremum of the outbursting AM CVn period distribution. Gaia14aae is dominated by the light from its accreting white dwarf. Assuming an orbital inclination of 90 degrees for the binary system, the contact phases of the white dwarf lead to lower limits of 0.78 M solar and 0.015 M solar on the masses of the accretor and donor respectively and a lower limit on the mass ratio of 0.019. Gaia14aae is only the third eclipsing AM CVn star known, and the first in which the WD is totally eclipsed. Using a helium WD model, we estimate the accretor's effective temperature to be 12900+-200 K. The three out-burst events occurred within 4 months of each other, while no other outburst activity is seen in the previous 8 years of Catalina Real-time Transient Survey (CRTS; Drake et al. 2009), Pan-STARRS-1 and ASAS-SN data. This suggests that these events might be rebrightenings of the first outburst rather than individual events.<br />Comment: 9

Details

ISSN :
00358711 and 13652966
Database :
OpenAIRE
Journal :
Campbell, H C, Marsh, T R, Fraser, M, Hodgkin, S T, de Miguel, E, Gänsicke, B T, Steeghs, D, Hourihane, A, Breedt, E, Littlefair, S P, Koposov, S E, Wyrzykowski, Ł, Altavilla, G, Blagorodnova, N, Clementini, G, Damljanovic, G, Delgado, A, Dennefeld, M, Drake, A J, Fernández-Hernández, J, Gilmore, G, Gualandi, R, Hamanowicz, A, Handzlik, B, Hardy, L K, Harrison, D L, Iłkiewicz, K, Jonker, P G, Kochanek, C S, Kołaczkowski, Z, Kostrzewa-Rutkowska, Z, Kotak, R, van Leeuwen, G, Leto, G, Ochner, P, Pawlak, M, Palaversa, L, Rixon, G, Rybicki, K, Shappee, B J, Smartt, S J, Torres, M A P, Tomasella, L, Turatto, M, Ulaczyk, K, van Velzen, S, Vince, O, Walton, N A, Wielgórski, P, Wevers, T, Whitelock, P, Yoldas, A, De Angeli, F, Burgess, P, Busso, G, Busuttil, R, Butterley, T, Chambers, K C, Copperwheat, C, Danilet, A B, Dhillon, V S, Evans, D W, Eyer, L, Froebrich, D, Gomboc, A, Holland, G, Holoien, T W-S, Jarvis, J F, Kaiser, N, Kann, D A, Koester, D, Kolb, U, Komossa, S, Magnier, E A, Mahabal, A, Polshaw, J, Prieto, J L, Prusti, T, Riello, M, Scholz, A, Simonian, G, Stanek, K Z, Szabados, L, Waters, C & Wilson, R W 2015, ' Total eclipse of the heart: the AM CVn Gaia14aae/ASSASN-14cn ', Monthly Notices of the Royal Astronomical Society, vol. 452, no. 1, pp. 1060-1067 . https://doi.org/10.1093/mnras/stv1224, Arias Montano. Repositorio Institucional de la Universidad de Huelva, instname, Monthly Notices of the Royal Astronomical Society, Campbell, H C, Marsh, T R, Fraser, M, Hodgkin, S T, Miguel, E D, Gänsicke, B T, Steeghs, D, Hourihane, A, Breedt, E, Littlefair, S P, Koposov, S E, Wyrzykowski, L, Altavilla, G, Blagorodnova, N, Clementini, G, Damljanovic, G, Delgado, A, Dennefeld, M, Drake, A J, Fernández-Hernández, J, Gilmore, G, Gualandi, R, Hamanowicz, A, Handzlik, B, Hardy, L K, Harrison, D L, Ilkiewicz, K, Jonker, P G, Kochanek, C S, Kolaczkowski, Z, Kostrzewa-Rutkowska, Z, Kotak, R, Leeuwen, G V, Leto, G, Ochner, P, Pawlak, M, Palaversa, L, Rixon, G, Rybicki, K, Shappee, B J, Smartt, S J, Torres, M A P, Tomasella, L, Turatto, M, Ulaczyk, K, Velzen, S V, Vince, O, Walton, N A, Wielgórski, P, Wevers, T, Whitelock, P, Yoldas, A, Angeli, F D, Burgess, P, Busso, G, Busuttil, R, Butterley, T, Chambers, K C, Copperwheat, C, Danilet, A B, Dhillon, V S, Evans, D W, Eyer, L, Froebrich, D, Gomboc, A, Holland, G, Holoien, T W-S, Jarvis, J F, Kaiser, N, Kann, D A, Koester, D, Kolb, U, Komossa, S, Magnier, E A, Mahabal, A, Polshaw, J, Prieto, J L, Prusti, T, Riello, M, Scholz, A, Simonian, G, Stanek, K Z, Szabados, L, Waters, C & Wilson, R W 2015, ' Total eclipse of the heart: The AM CVn Gaia14aae / ASSASN-14cn ', Monthly Notices of the Royal Astronomical Society . https://doi.org/10.1093/mnras/stv1224, Monthly Notices of the Royal Astronomical Society, 452, 1060-1067, Monthly Notices of the Royal Astronomical Society, 452, 1, pp. 1060-1067, Monthly Notices Of The Royal Astronomical Society, Artículos CONICYT, CONICYT Chile, instacron:CONICYT
Accession number :
edsair.doi.dedup.....30582f79896ef3030f4196fb85f09df4
Full Text :
https://doi.org/10.1093/mnras/stv1224