Ryosuke Hirai's Homepage
Leading-Author papers
"Constraining mass-transfer and common-envelope physics with post-supernova companion monitoring"
Ryosuke Hirai
Monthly Notices of the Royal Astronomical Society, Volume 523, Issue 4, pp.6011-6019 (2023)
arXiv:2304.13864
"A two-stage formalism for common-envelope phases of massive stars"
Ryosuke Hirai , Ilya Mandel
The Astrophysical Journal Letters, Volume 937, Issue 2, id.L42, 7 pp. (2022)
arXiv:2209.05328
"Neutron stars colliding with binary companions: formation of hypervelocity stars, pulsar planets, bumpy superluminous supernovae and Thorne-Żytkow objects"
Ryosuke Hirai , Philipp Podsiadlowski
Monthly Notices of the Royal Astronomical Society, Volume 517, Issue 3, pp.4544-4556 (2022)
arXiv:2208.00915
"Conditions for accretion disc formation and observability of wind-accreting X-ray binaries"
Ryosuke Hirai , Ilya Mandel
Publications of the Astronomical Society of Australia, Volume 38, article id. e056 (2021)
arXiv:2108.03774
"Simulating the formation of η Carinae's surrounding nebula through unstable triple evolution and stellar merger-induced eruption"
Ryosuke Hirai , Philipp Podsiadlowski, Stanley P. Owocki, Fabian R. N. Schneider, Nathan Smith
Monthly Notices of the Royal Astronomical Society, Volume 503, Issue 3, pp.4276-4296 (2021)
arXiv:2011.12434
"Formation pathway for lonely stripped-envelope supernova progenitors: implications for Cassiopeia A"
Ryosuke Hirai , Toshiki Sato, Philipp Podsiadlowski, Alejandro Vigna-Gomez, Ilya Mandel
Monthly Notices of the Royal Astronomical Society, Volume 499, Issue 1, pp.1154-1171 (2020)
arXiv:2008.05076
"Comprehensive study of ejecta-companion interaction for core-collapse supernovae in massive binaries"
Ryosuke Hirai , Philipp Podsiadlowski, Shoichi Yamada
The Astrophysical Journal, Volume 864, Issue 2, article id. 119, 17pp. (2018)
arXiv:1803.10808
"The Origin of the Possible Massive Black Hole in the Progenitor System of iPTF13bvn"
Ryosuke Hirai
Monthly Notices of the Royal Astronomical Society: Letters, Volume 469, Issue 1, p.L94-L98 (2017)
arXiv:1704.07663
"Formation of the Progenitor of iPTF13bvn Revisited"
Ryosuke Hirai
Monthly Notices of the Royal Astronomical Society, Volume 466, Issue 4, p.3775-3783 (2017)
arXiv:1612.05666
"Hyperbolic Self-Gravity Solver for Large Scale Hydrodynamical Simulations"
Ryosuke Hirai , Hiroki Nagakura, Hirotada Okawa, Kotaro Fujisawa
Physical Review D, Volume 93, Issue 8, id.083006 (2016)
arXiv:1602.05700
Note: One of the figures were featured in the Physical Review D "Kaleidoscope" !
"Possible Signatures of Ejecta-Companion Interaction in iPTF 13bvn"
Ryosuke Hirai , Shoichi Yamada
The Astrophysical Journal, Volume 805, Issue 2, article id. 170, 7 pp. (2015)
arXiv:1504.01845
"The Outcome of Supernovae in Massive Binaries; Removed Mass, and its Separation Dependence"
Ryosuke Hirai , Hidetomo Sawai, Shoichi Yamada
The Astrophysical Journal, Volume 792, Issue 1, article id. 66, 15 pp. (2014)
arXiv:1404.4297
Co-Author papers
"Fits for the convective envelope mass in massive stars"
Lewis Picker, Ryosuke Hirai , Ilya Mandel
submitted to ApJ
arXiv:2402.13180
"Expansion of accreting main-sequence stars during rapid mass transfer"
Mike Y. M. Lau, Ryosuke Hirai , Ilya Mandel, Christopher A. Tout
submitted to ApJL
arXiv:2401.09570
"Dust formation in common envelope binary interactions -- II: 3D simulations with self-consistent dust formation"
Luis C. Bermúdez-Bustamante, Orsola De Marco, Lionel Siess, Daniel J. Price, Miguel González-Bolívar, Mike Y. M. Lau, Chunliang Mu, Ryosuke Hirai , Taïssa Danilovich, Mansi M. Kasliwal
submitted to MNRAS
arXiv:2401.03644
"Evidence for stellar mergers of evolved massive binaries: blue supergiants in the Large Magellanic Cloud"
Athira Menon, Andrea Ercolino, Miguel A. Urbaneja, Daniel J. Lennon, Artemio Herrero, Ryosuke Hirai , Norbert Langer, Abel Schootemeijer, Emmanouil Chatzopoulos, Juhan Frank, Sagiv Shiber
accepted for publication in ApJL
arXiv:2311.05581
"SN 2022jli: a type Ic supernova with periodic modulation of its light curve and an unusually long rise"
T. Moore et al. (including R. Hirai )
The Astrophysical Journal Letters, Volume 956, Issue 1, id.L31, 13 pp. (2023)
arXiv:2309.12750
"The Impact of Angular Momentum Loss on the Outcomes of Binary Mass Transfer"
Reinhold Willcox, Morgan MacLeod, Ilya Mandel, Ryosuke Hirai
The Astrophysical Journal, Volume 958, Issue 2, id.138, 12 pp. (2023)
arXiv:2308.06666
"Time-independent Simulations of Steady-State Accretion with Nuclear Burning"
Kaho Tse, Alexander Heger, Ryosuke Hirai , Duncan Galloway
submitted to ApJ
arXiv:2305.10627
"Rapid population synthesis of black-hole high-mass X-ray binaries: implications for binary stellar evolution"
Isobel M. Romero-Shaw, Ryosuke Hirai , Arash Bahramian, Reinhold Willcox, Ilya Mandel
Monthly Notices of the Royal Astronomical Society, Volume 524, Issue 1, pp.245-259 (2023)
arXiv:2303.05375
"The Galactic underworld: The spatial distribution of compact remnants"
David Sweeney, Peter Tuthill, Sanjib Sharma, Ryosuke Hirai
Monthly Notices of the Royal Astronomical Society, Volume 516, Issue 4, pp.4971-4979 (2022)
arXiv:2210.04241
"Common envelopes in massive stars II: The distinct roles of hydrogen and helium recombination"
Mike Y. M. Lau, Ryosuke Hirai , Daniel J. Price, Ilya Mandel
Monthly Notices of the Royal Astronomical Society, Volume 516, Issue 4, pp.4669-4678 (2022)
arXiv:2206.06411
"Common envelope binary interaction simulations between a thermally-pulsating AGB star and a low mass companion"
Miguel González-Bolívar, Orsola De Marco, Mike Y. M. Lau, Ryosuke Hirai , Daniel J. Price
Monthly Notices of the Royal Astronomical Society, Volume 517, Issue 3, pp.3181-3199 (2022)
arXiv:2205.09749
"An environment analysis of the Type Ib SN 2019yvr and the possible presence of an inflated binary companion"
Ning-Chen Sun, Justyn R. Maund, Paul A. Crowther, Ryosuke Hirai , Amir Kashapov, Ji-Feng Liu, Liang-Duan Liu, Emmanouil Zapartas
Monthly Notices of the Royal Astronomical Society, Volume 510, Issue 3, pp.3701-3715 (2022)
arXiv:2111.06471
"Common envelopes in massive stars: Towards the role of radiation pressure and recombination energy in ejecting red supergiant envelopes"
Mike Y. M. Lau, Ryosuke Hirai , Miguel González-Bolívar, Daniel J. Price, Orsola De Marco, Ilya Mandel
Monthly Notices of the Royal Astronomical Society, Volume 512, Issue 4, pp.5462-5480 (2022)
arXiv:2109.10352
"Rapid stellar and binary population synthesis with COMPAS"
Team COMPAS (including R. Hirai )
The Astrophysical Journal Supplement Series, Volume 258, Issue 2, id.34, 30 pp. (2022)
arXiv:2109.10352
"COMPAS: A rapid binary population synthesis suite"
Team COMPAS (including R. Hirai )
Journal of Open Source Software, vol. 7, issue 69, id. 3838 (2022)
"Stellar core-merger-induced collapse: new formation pathways for black holes, Thorne-Żytkow objects, magnetars, and superluminous supernovae"
Iminhaji Ablimit, Philipp Podsiadlowski, Ryosuke Hirai , James Wicker
Monthly Notices of the Royal Astronomical Society, Volume 513, Issue 4, pp.4802-4813 (2022)
arXiv:2108.08430
"Supernova explosions in active galactic nuclei discs"
Evgeni Grishin, Alexey Bobrick, Ryosuke Hirai , Ilya Mandel, Hagai B. Perets
Monthly Notices of the Royal Astronomical Society, Volume 507, Issue 1, pp.156-174 (2021)
arXiv:2105.09953
"The observability of inflated companion stars after supernovae in massive binaries"
Misa Ogata, Ryosuke Hirai , Kotaro Hijikawa
Monthly Notices of the Royal Astronomical Society, Volume 505, Issue 2, pp.2485-2499 (2021)
arXiv:2103.10111
"Wind mass-loss rates of stripped stars inferred from Cygnus X-1"
Coenraad J. Neijssel, Serena Vinciguerra, Alejandro Vigna-Gomez, Ryosuke Hirai , James C. A. Miller-Jones, Arash Bahramian, Thomas J. Maccarone, Ilya Mandel
The Astrophysical Journal, Volume 908, Issue 2, id.118 (2021)
arXiv:2102.09092
"Neutron Star Extreme Matter Observatory: A kilohertz-band gravitational-wave detector in the global network"
K. Ackley et al. (including R. Hirai )
Publications of the Astronomical Society of Australia, Volume 37, article id. e047 (2020)
arXiv:2007.03128
"The sensitivity of presupernova neutrinos to stellar evolution models"
Chinami Kato, Ryosuke Hirai , Hiroki Nagakura
Monthly Notices of the Royal Astronomical Society, Volume 496, Issue 3, pp.3961-3972 (2020)
arXiv:2005.03124
"A Sub-Solar Metallicity Progenitor for Cassiopeia A, the remnant of a Type IIb Supernova"
Toshiki Sato, Takashi Yoshida, Shigehiro Nagataki, Masaomi Ono, Keiichi Maeda, Ryosuke Hirai , John P. Hughes, Brian J. Williams, Yoshitomo Maeda
The Astrophysical Journal, Volume 893, Issue 1, id.49 (2020)
arXiv:2003.08922
"Origins of Type Ibn SNe 2006jc/2015G in interacting binaries and implications for pre-SN eruptions"
Ning-Chen Sun, Jusytn R. Maund, Ryosuke Hirai , Paul A. Crowther, Philipp Podsiadlowski
Monthly Notices of the Royal Astronomical Society, Volume 491, Issue 4, p.6000-6019 (2020)
arXiv:1909.07999
"Hydrodynamical simulations and similarity relations for eruptive mass loss from massive stars"
Stanley P. Owocki, Ryosuke Hirai , Philipp Podsiadlowski, Fabian R. N. Schneider
Monthly Notices of the Royal Astronomical Society, Volume 485, Issue 1, p.988-1000 (2019)
arXiv:1902.06220
"The W4 method: a new multi-dimensional root-finding scheme for nonlinear systems of equations"
Hirotada Okawa, Kotaro Fujisawa, Yu Yamamoto, Ryosuke Hirai , Nobutoshi Yasutake, Hiroki Nagakura, Shoichi Yamada
Applied Numerical Mathematics, Volume 183, p.157-172 (2023)
arXiv:1809.04495
"Formation pathway of Population III coalescing binary black holes through stable mass transfer"
Kohei Inayoshi, Ryosuke Hirai , Tomoya Kinugawa, Kenta Hotokezaka
Monthly Notices of the Royal Astronomical Society, Volume 468, Issue 4, p.5020-5032 (2017)
arXiv:1701.04823
Other articles
"Roman CCS White Paper: Characterizing the Galactic population of isolated black holes"
C. Y. Lam et al. (including R. Hirai )
arXiv:2306.12514
"Science Cases for the Keck Wide-Field Imager"
J. Cooke et al. (including R. Hirai )
arXiv:2207.11698
"水素欠乏超新星の親星の起源"
平井 遼介
The Astronomical Herald, Volume 111, Issue 9, p.580-588 (2018)
Note: One of the figures were also used for the cover!