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Exploring compact binary populations with the Einstein Telescope

Singh, Neha ; Bulik, Tomasz ; Belczynski, Krzysztof and Askar, Abbas LU orcid (2022) In Astronomy & Astrophysics 667(A2).
Abstract
The Einstein Telescope (ET), a wide-band, future third generation gravitational wave detector, is expected to have detection rates of ∼105 − 106 binary black hole (BBH) detections and ∼7 × 104 binary neutron star (BNS) detections in one year. The coalescence of compact binaries with a total mass of 20–100 M⊙, typical of BH-BH or BH-NS binaries, will be visible up to redshift z ≈ 20
and even higher, thus facilitating the understanding of the dark era of
the Universe preceding the birth of the first stars. The ET will
therefore be a crucial instrument for population studies. We analysed
the compact binaries originating in stars from (i) Population (Pop) ... (More)
The Einstein Telescope (ET), a wide-band, future third generation gravitational wave detector, is expected to have detection rates of ∼105 − 106 binary black hole (BBH) detections and ∼7 × 104 binary neutron star (BNS) detections in one year. The coalescence of compact binaries with a total mass of 20–100 M⊙, typical of BH-BH or BH-NS binaries, will be visible up to redshift z ≈ 20
and even higher, thus facilitating the understanding of the dark era of
the Universe preceding the birth of the first stars. The ET will
therefore be a crucial instrument for population studies. We analysed
the compact binaries originating in stars from (i) Population (Pop)
I+II, (ii) Pop III, and (iii) globular clusters (GCs), with the single
ET instrument, using the ET-D design sensitivity for the analysis. We
estimated the constraints on the chirp mass, redshift, and merger rate
as function of redshift for these classes of compact object binaries. We
conclude that the ET as a single instrument is capable of detecting and
distinguishing different compact binary populations separated in chirp
mass – redshift space. While compact binaries originating in stars from
Pop III are clearly distinguishable, owing to the separation in chirp
mass – redshift space, the other two populations, Pop I+II, and GCs, can
be distinguished with just 500 detections, corresponding to an
observation time of ∼1 h. The mass distribution characteristics of such
different compact binary populations can also be estimated with the
single ET instrument. (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Gravitational waves, Stars: black holes, Stars: neutron, Methods: data analysis
in
Astronomy & Astrophysics
volume
667
issue
A2
article number
A2
pages
15 pages
publisher
EDP Sciences
external identifiers
  • scopus:85144125189
ISSN
1432-0746
DOI
10.1051/0004-6361/202142856
language
English
LU publication?
yes
id
8611e13c-37ee-461d-ab87-41301320c53d
date added to LUP
2022-07-23 22:02:23
date last changed
2024-04-19 00:37:44
@article{8611e13c-37ee-461d-ab87-41301320c53d,
  abstract     = {{The <i>Einstein</i> Telescope (ET), a wide-band, future third generation gravitational wave detector, is expected to have detection rates of ∼10<sup>5</sup> − 10<sup>6</sup> binary black hole (BBH) detections and ∼7 × 10<sup>4</sup> binary neutron star (BNS) detections in one year. The coalescence of compact binaries with a total mass of 20–100 <i>M</i><sub>⊙</sub>, typical of BH-BH or BH-NS binaries, will be visible up to redshift <i>z</i> ≈ 20<br>
 and even higher, thus facilitating the understanding of the dark era of<br>
 the Universe preceding the birth of the first stars. The ET will <br>
therefore be a crucial instrument for population studies. We analysed <br>
the compact binaries originating in stars from (i) Population (Pop) <br>
I+II, (ii) Pop III, and (iii) globular clusters (GCs), with the single <br>
ET instrument, using the ET-D design sensitivity for the analysis. We <br>
estimated the constraints on the chirp mass, redshift, and merger rate <br>
as function of redshift for these classes of compact object binaries. We<br>
 conclude that the ET as a single instrument is capable of detecting and<br>
 distinguishing different compact binary populations separated in chirp <br>
mass – redshift space. While compact binaries originating in stars from <br>
Pop III are clearly distinguishable, owing to the separation in chirp <br>
mass – redshift space, the other two populations, Pop I+II, and GCs, can<br>
 be distinguished with just 500 detections, corresponding to an <br>
observation time of ∼1 h. The mass distribution characteristics of such <br>
different compact binary populations can also be estimated with the <br>
single ET instrument.}},
  author       = {{Singh, Neha and Bulik, Tomasz and Belczynski, Krzysztof and Askar, Abbas}},
  issn         = {{1432-0746}},
  keywords     = {{Gravitational waves; Stars: black holes; Stars: neutron; Methods: data analysis}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{A2}},
  publisher    = {{EDP Sciences}},
  series       = {{Astronomy & Astrophysics}},
  title        = {{Exploring compact binary populations with the <i>Einstein </i>Telescope}},
  url          = {{http://dx.doi.org/10.1051/0004-6361/202142856}},
  doi          = {{10.1051/0004-6361/202142856}},
  volume       = {{667}},
  year         = {{2022}},
}