Search for subsolar-mass ultracompact binaries in advanced LIGO's first observing run

B. P. Abbott, S. V. Angelova, R. Birney, N. A. Lockerbie, S. Macfoy, S. Reid, K. V. Tokmakov, LIGO Scientific Collaboration, Virgo Collaboration

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Abstract

We present the first Advanced LIGO and Advanced Virgo search for ultracompact binary systems with component masses between 0.2  M⊙–1.0  M⊙ using data taken between September 12, 2015 and January 19, 2016. We find no viable gravitational wave candidates. Our null result constrains the coalescence rate of monochromatic (delta function) distributions of nonspinning (0.2  M⊙, 0.2  M⊙) ultracompact binaries to be less than 1.0×106  Gpc−3  yr−1 and the coalescence rate of a similar distribution of (1.0  M⊙, 1.0  M⊙) ultracompact binaries to be less than 1.9×104  Gpc−3  yr−1 (at 90% confidence). Neither black holes nor neutron stars are expected to form below ∼1  M⊙ through conventional stellar evolution, though it has been proposed that similarly low mass black holes could be formed primordially through density fluctuations in the early Universe and contribute to the dark matter density. The interpretation of our constraints in the primordial black hole dark matter paradigm is highly model dependent; however, under a particular primordial black hole binary formation scenario we constrain monochromatic primordial black hole populations of 0.2  M⊙ to be less than 33% of the total dark matter density and monochromatic populations of 1.0  M⊙ to be less than 5% of the dark matter density. The latter strengthens the presently placed bounds from microlensing surveys of massive compact halo objects (MACHOs) provided by the MACHO and EROS Collaborations.
Original languageEnglish
Article number231103
Number of pages13
JournalPhysical Review Letters
Volume121
DOIs
Publication statusPublished - 7 Dec 2018

Fingerprint

LIGO (observatory)
dark matter
massive compact halo objects
coalescing
EROS (satellites)
stellar evolution
delta function
gravitational waves
neutron stars
confidence
universe

Keywords

  • gravitational wave detection
  • LIGO
  • general relativity
  • neutron stars
  • pulsars
  • dark matter

Cite this

Abbott, B. P. ; Angelova, S. V. ; Birney, R. ; Lockerbie, N. A. ; Macfoy, S. ; Reid, S. ; Tokmakov, K. V. ; LIGO Scientific Collaboration ; Virgo Collaboration. / Search for subsolar-mass ultracompact binaries in advanced LIGO's first observing run. In: Physical Review Letters. 2018 ; Vol. 121.
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abstract = "We present the first Advanced LIGO and Advanced Virgo search for ultracompact binary systems with component masses between 0.2  M⊙–1.0  M⊙ using data taken between September 12, 2015 and January 19, 2016. We find no viable gravitational wave candidates. Our null result constrains the coalescence rate of monochromatic (delta function) distributions of nonspinning (0.2  M⊙, 0.2  M⊙) ultracompact binaries to be less than 1.0×106  Gpc−3  yr−1 and the coalescence rate of a similar distribution of (1.0  M⊙, 1.0  M⊙) ultracompact binaries to be less than 1.9×104  Gpc−3  yr−1 (at 90{\%} confidence). Neither black holes nor neutron stars are expected to form below ∼1  M⊙ through conventional stellar evolution, though it has been proposed that similarly low mass black holes could be formed primordially through density fluctuations in the early Universe and contribute to the dark matter density. The interpretation of our constraints in the primordial black hole dark matter paradigm is highly model dependent; however, under a particular primordial black hole binary formation scenario we constrain monochromatic primordial black hole populations of 0.2  M⊙ to be less than 33{\%} of the total dark matter density and monochromatic populations of 1.0  M⊙ to be less than 5{\%} of the dark matter density. The latter strengthens the presently placed bounds from microlensing surveys of massive compact halo objects (MACHOs) provided by the MACHO and EROS Collaborations.",
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author = "Abbott, {B. P.} and Angelova, {S. V.} and R. Birney and Lockerbie, {N. A.} and S. Macfoy and S. Reid and Tokmakov, {K. V.} and {LIGO Scientific Collaboration} and {Virgo Collaboration}",
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Abbott, BP, Angelova, SV, Birney, R, Lockerbie, NA, Macfoy, S, Reid, S, Tokmakov, KV, LIGO Scientific Collaboration & Virgo Collaboration 2018, 'Search for subsolar-mass ultracompact binaries in advanced LIGO's first observing run', Physical Review Letters, vol. 121, 231103. https://doi.org/10.1103/PhysRevLett.121.231103

Search for subsolar-mass ultracompact binaries in advanced LIGO's first observing run. / Abbott, B. P.; Angelova, S. V.; Birney, R.; Lockerbie, N. A.; Macfoy, S.; Reid, S.; Tokmakov, K. V.; LIGO Scientific Collaboration; Virgo Collaboration.

In: Physical Review Letters, Vol. 121, 231103, 07.12.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Search for subsolar-mass ultracompact binaries in advanced LIGO's first observing run

AU - Abbott, B. P.

AU - Angelova, S. V.

AU - Birney, R.

AU - Lockerbie, N. A.

AU - Macfoy, S.

AU - Reid, S.

AU - Tokmakov, K. V.

AU - LIGO Scientific Collaboration

AU - Virgo Collaboration

PY - 2018/12/7

Y1 - 2018/12/7

N2 - We present the first Advanced LIGO and Advanced Virgo search for ultracompact binary systems with component masses between 0.2  M⊙–1.0  M⊙ using data taken between September 12, 2015 and January 19, 2016. We find no viable gravitational wave candidates. Our null result constrains the coalescence rate of monochromatic (delta function) distributions of nonspinning (0.2  M⊙, 0.2  M⊙) ultracompact binaries to be less than 1.0×106  Gpc−3  yr−1 and the coalescence rate of a similar distribution of (1.0  M⊙, 1.0  M⊙) ultracompact binaries to be less than 1.9×104  Gpc−3  yr−1 (at 90% confidence). Neither black holes nor neutron stars are expected to form below ∼1  M⊙ through conventional stellar evolution, though it has been proposed that similarly low mass black holes could be formed primordially through density fluctuations in the early Universe and contribute to the dark matter density. The interpretation of our constraints in the primordial black hole dark matter paradigm is highly model dependent; however, under a particular primordial black hole binary formation scenario we constrain monochromatic primordial black hole populations of 0.2  M⊙ to be less than 33% of the total dark matter density and monochromatic populations of 1.0  M⊙ to be less than 5% of the dark matter density. The latter strengthens the presently placed bounds from microlensing surveys of massive compact halo objects (MACHOs) provided by the MACHO and EROS Collaborations.

AB - We present the first Advanced LIGO and Advanced Virgo search for ultracompact binary systems with component masses between 0.2  M⊙–1.0  M⊙ using data taken between September 12, 2015 and January 19, 2016. We find no viable gravitational wave candidates. Our null result constrains the coalescence rate of monochromatic (delta function) distributions of nonspinning (0.2  M⊙, 0.2  M⊙) ultracompact binaries to be less than 1.0×106  Gpc−3  yr−1 and the coalescence rate of a similar distribution of (1.0  M⊙, 1.0  M⊙) ultracompact binaries to be less than 1.9×104  Gpc−3  yr−1 (at 90% confidence). Neither black holes nor neutron stars are expected to form below ∼1  M⊙ through conventional stellar evolution, though it has been proposed that similarly low mass black holes could be formed primordially through density fluctuations in the early Universe and contribute to the dark matter density. The interpretation of our constraints in the primordial black hole dark matter paradigm is highly model dependent; however, under a particular primordial black hole binary formation scenario we constrain monochromatic primordial black hole populations of 0.2  M⊙ to be less than 33% of the total dark matter density and monochromatic populations of 1.0  M⊙ to be less than 5% of the dark matter density. The latter strengthens the presently placed bounds from microlensing surveys of massive compact halo objects (MACHOs) provided by the MACHO and EROS Collaborations.

KW - gravitational wave detection

KW - LIGO

KW - general relativity

KW - neutron stars

KW - pulsars

KW - dark matter

U2 - 10.1103/PhysRevLett.121.231103

DO - 10.1103/PhysRevLett.121.231103

M3 - Article

VL - 121

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

M1 - 231103

ER -