The detection of dust around NN Ser

Adam Hardy; Matthias R. Schreiber; Steven G. Parsons; Claudio Caceres; Carolyn Brinkworth; Dimitri Veras; Boris T. Gänsicke; Thomas R. Marsh; Lucas Cieza

doi:10.1093/mnras/stw976

The detection of dust around NN Ser

Adam Hardy, Matthias R. Schreiber, Steven G. Parsons, Claudio Caceres, Carolyn Brinkworth, Dimitri Veras, Boris T. Gänsicke, Thomas R. Marsh, Lucas Cieza

Exact Sciences School

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

Eclipse timing variations observed from the post-common-envelope binary (PCEB) NN Ser offer strong evidence in favour of circumbinary planets existing around PCEBs. If real, these planets may be accompanied by a disc of dust. We here present the ALMA detection of flux at 1.3 mm from NN Ser, which is likely due to thermal emission from a dust disc of mass ~0.8 ± 0.2 M_⊙. We performed simulations of the history of NN Ser to determine possible origins of this dust, and conclude that the most likely origin is, in fact, common-envelope material which was not expelled from the system and instead formed a circumbinary disc. These discs have been predicted by theory but previously remained undetected. While the presence of this dust does not prove the existence of planets around NN Ser, it adds credibility to the possibility of planets forming from common-envelope material in a 'second-generation' scenario.

Original language	English
Pages (from-to)	4518-4526
Number of pages	9
Journal	Monthly Notices of the Royal Astronomical Society
Volume	459
Issue number	4
DOIs	https://doi.org/10.1093/mnras/stw976
Publication status	Published - 11 Jul 2016

Keywords

Binaries: close
Binaries: eclipsing
Protoplanetary discs

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1093/mnras/stw976

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title = "The detection of dust around NN Ser",

abstract = "Eclipse timing variations observed from the post-common-envelope binary (PCEB) NN Ser offer strong evidence in favour of circumbinary planets existing around PCEBs. If real, these planets may be accompanied by a disc of dust. We here present the ALMA detection of flux at 1.3 mm from NN Ser, which is likely due to thermal emission from a dust disc of mass ~0.8 ± 0.2 M⊙. We performed simulations of the history of NN Ser to determine possible origins of this dust, and conclude that the most likely origin is, in fact, common-envelope material which was not expelled from the system and instead formed a circumbinary disc. These discs have been predicted by theory but previously remained undetected. While the presence of this dust does not prove the existence of planets around NN Ser, it adds credibility to the possibility of planets forming from common-envelope material in a 'second-generation' scenario.",

keywords = "Binaries: close, Binaries: eclipsing, Protoplanetary discs",

author = "Adam Hardy and Schreiber, {Matthias R.} and Parsons, {Steven G.} and Claudio Caceres and Carolyn Brinkworth and Dimitri Veras and G{\"a}nsicke, {Boris T.} and Marsh, {Thomas R.} and Lucas Cieza",

note = "Publisher Copyright: {\textcopyright} 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.",

year = "2016",

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doi = "10.1093/mnras/stw976",

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T1 - The detection of dust around NN Ser

AU - Hardy, Adam

AU - Schreiber, Matthias R.

AU - Parsons, Steven G.

AU - Caceres, Claudio

AU - Brinkworth, Carolyn

AU - Veras, Dimitri

AU - Gänsicke, Boris T.

AU - Marsh, Thomas R.

AU - Cieza, Lucas

PY - 2016/7/11

Y1 - 2016/7/11

N2 - Eclipse timing variations observed from the post-common-envelope binary (PCEB) NN Ser offer strong evidence in favour of circumbinary planets existing around PCEBs. If real, these planets may be accompanied by a disc of dust. We here present the ALMA detection of flux at 1.3 mm from NN Ser, which is likely due to thermal emission from a dust disc of mass ~0.8 ± 0.2 M⊙. We performed simulations of the history of NN Ser to determine possible origins of this dust, and conclude that the most likely origin is, in fact, common-envelope material which was not expelled from the system and instead formed a circumbinary disc. These discs have been predicted by theory but previously remained undetected. While the presence of this dust does not prove the existence of planets around NN Ser, it adds credibility to the possibility of planets forming from common-envelope material in a 'second-generation' scenario.

AB - Eclipse timing variations observed from the post-common-envelope binary (PCEB) NN Ser offer strong evidence in favour of circumbinary planets existing around PCEBs. If real, these planets may be accompanied by a disc of dust. We here present the ALMA detection of flux at 1.3 mm from NN Ser, which is likely due to thermal emission from a dust disc of mass ~0.8 ± 0.2 M⊙. We performed simulations of the history of NN Ser to determine possible origins of this dust, and conclude that the most likely origin is, in fact, common-envelope material which was not expelled from the system and instead formed a circumbinary disc. These discs have been predicted by theory but previously remained undetected. While the presence of this dust does not prove the existence of planets around NN Ser, it adds credibility to the possibility of planets forming from common-envelope material in a 'second-generation' scenario.

KW - Binaries: close

KW - Binaries: eclipsing

KW - Protoplanetary discs

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The detection of dust around NN Ser

Abstract

Keywords

ASJC Scopus subject areas

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