---
_id: '17515'
abstract:
- lang: eng
text: 'The disks of active galactic nuclei (AGNs) have emerged as a rich environment
for the evolution of stars and their compact remnants. The very dense medium favors
rapid accretion, while torques and migration traps enhance binary formation and
mergers. Both long and short gamma-ray bursts are hence expected. We show that
AGN disks constitute an ideal environment for another interesting phenomenon:
the accretion-induced collapse (AIC) of neutron stars (NSs) to black holes (BHs).
Rapid accretion in the dense disks can cause NSs to grow to the point of exceeding
the maximum mass allowed by their equation of state. General relativistic magnetohydrodynamical
simulations have shown that electromagnetic signatures are expected if the NS
is surrounded by a minidisk prior to collapse, which then rapidly accretes onto
the BH, and/or if the NS is highly magnetized, from reconnection of the magnetosphere
during collapse. Here we compute the rates of AICs and their locations within
the disks for both isolated NSs and for (initially stable) NSs formed from NS-NS
mergers. We find that the global AIC rates are ∼0.07–20 Gpc−3 yr−1, and we discuss
their observable prospects and signatures as they emerge from the dense disk environments.'
article_number: '10'
article_processing_charge: No
article_type: original
author:
- first_name: Rosalba
full_name: Perna, Rosalba
last_name: Perna
- first_name: Hiromichi
full_name: Tagawa, Hiromichi
last_name: Tagawa
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Imre
full_name: Bartos, Imre
last_name: Bartos
citation:
ama: Perna R, Tagawa H, Haiman Z, Bartos I. Accretion-induced collapse of neutron
stars in the disks of active galactic nuclei. The Astrophysical Journal.
2021;915(1). doi:10.3847/1538-4357/abfdb4
apa: Perna, R., Tagawa, H., Haiman, Z., & Bartos, I. (2021). Accretion-induced
collapse of neutron stars in the disks of active galactic nuclei. The Astrophysical
Journal. American Astronomical Society. https://doi.org/10.3847/1538-4357/abfdb4
chicago: Perna, Rosalba, Hiromichi Tagawa, Zoltán Haiman, and Imre Bartos. “Accretion-Induced
Collapse of Neutron Stars in the Disks of Active Galactic Nuclei.” The Astrophysical
Journal. American Astronomical Society, 2021. https://doi.org/10.3847/1538-4357/abfdb4.
ieee: R. Perna, H. Tagawa, Z. Haiman, and I. Bartos, “Accretion-induced collapse
of neutron stars in the disks of active galactic nuclei,” The Astrophysical
Journal, vol. 915, no. 1. American Astronomical Society, 2021.
ista: Perna R, Tagawa H, Haiman Z, Bartos I. 2021. Accretion-induced collapse of
neutron stars in the disks of active galactic nuclei. The Astrophysical Journal.
915(1), 10.
mla: Perna, Rosalba, et al. “Accretion-Induced Collapse of Neutron Stars in the
Disks of Active Galactic Nuclei.” The Astrophysical Journal, vol. 915,
no. 1, 10, American Astronomical Society, 2021, doi:10.3847/1538-4357/abfdb4.
short: R. Perna, H. Tagawa, Z. Haiman, I. Bartos, The Astrophysical Journal 915
(2021).
date_created: 2024-09-05T08:55:06Z
date_published: 2021-06-28T00:00:00Z
date_updated: 2024-09-10T13:47:31Z
day: '28'
doi: 10.3847/1538-4357/abfdb4
extern: '1'
intvolume: ' 915'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3847/1538-4357/abfdb4
month: '06'
oa: 1
oa_version: Published Version
publication: The Astrophysical Journal
publication_identifier:
issn:
- 0004-637X
- 1538-4357
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Accretion-induced collapse of neutron stars in the disks of active galactic
nuclei
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 915
year: '2021'
...