Related papers: SAGE: finding IMBH in the black hole desert

A Gravitational Wave Background from Intermediate Mass Black Holes in AGN Disks

Intermediate mass black holes (IMBHs) formed in active galactic nucleus (AGN) disks are expected to inspiral into their central supermassive black holes (SMBHs), generating a stochastic gravitational-wave (GW) background in the…

Astrophysics of Galaxies · Physics 2026-02-11 Chiara M. F. Mingarelli

Introducing the Search for Intermediate-mass Black-hole In Nearby Galaxy (SIBLING) Survey

Intermediate mass black holes (IMBHs) have masses between the $10^2\!-\!10^6$ M$_\odot$ and are key to our understanding of the formation of massive black holes. The known population of IMBH remains small, with a few hundred candidates and…

Astrophysics of Galaxies · Physics 2020-02-12 Jorge Martínez-Palomera , Paulina Lira , India Bhalla-Ladd , Francisco Förster , Richard M. Plotkin

Search for Gravitational Waves from Intermediate Mass Binary Black Holes

We present the results of a weakly modeled burst search for gravitational waves from mergers of non-spinning intermediate mass black holes (IMBH) in the total mass range 100--450 solar masses and with the component mass ratios between 1:1…

General Relativity and Quantum Cosmology · Physics 2013-05-30 the LIGO Scientific Collaboration , the Virgo Collaboration , J. Abadie , B. P. Abbott , R. Abbott , T. D. Abbott , M. Abernathy , T. Accadia , F. Acernese , C. Adams , R. Adhikari , C. Affeldt , M. Agathos , K. Agatsuma , P. Ajith , B. Allen , E. Amador Ceron , D. Amariutei , S. B. Anderson , W. G. Anderson , K. Arai , M. A. Arain , M. C. Araya , S. M. Aston , P. Astone , D. Atkinson , P. Aufmuth , C. Aulbert , B. E. Aylott , S. Babak , P. Baker , G. Ballardin , S. Ballmer , J. C. B. Barayoga , D. Barker , F. Barone , B. Barr , L. Barsotti , M. Barsuglia , M. A. Barton , I. Bartos , R. Bassiri , M. Bastarrika , A. Basti , J. Batch , J. Bauchrowitz , Th. S. Bauer , M. Bebronne , D. Beck , B. Behnke , M. Bejger , M. G. Beker , A. S. Bell , A. Belletoile , I. Belopolski , M. Benacquista , J. M. Berliner , A. Bertolini , J. Betzwieser , N. Beveridge , P. T. Beyersdorf , I. A. Bilenko , G. Billingsley , J. Birch , R. Biswas , M. Bitossi , M. A. Bizouard , E. Black , J. K. Blackburn , L. Blackburn , D. Blair , B. Bland , M. Blom , O. Bock , T. P. Bodiya , C. Bogan , R. Bondarescu , F. Bondu , L. Bonelli , R. Bonnand , R. Bork , M. Born , V. Boschi , S. Bose , L. Bosi , B. Bouhou , S. Braccini , C. Bradaschia , P. R. Brady , V. B. Braginsky , M. Branchesi , J. E. Brau , J. Breyer , T. Briant , D. O. Bridges , A. Brillet , M. Brinkmann , V. Brisson , M. Britzger , A. F. Brooks , D. A. Brown , T. Bulik , H. J. Bulten , A. Buonanno , J. Burguet-Castell , D. Buskulic , C. Buy , R. L. Byer , L. Cadonati , G. Cagnoli , E. Calloni , J. B. Camp , P. Campsie , J. Cannizzo , K. Cannon , B. Canuel , J. Cao , C. D. Capano , F. Carbognani , L. Carbone , S. Caride , S. Caudill , M. Cavaglia , F. Cavalier , R. Cavalieri , G. Cella , C. Cepeda , E. Cesarini , O. Chaibi , T. Chalermsongsak , P. Charlton , E. Chassande-Mottin , S. Chelkowski , W. Chen , X. Chen , Y. Chen , A. Chincarini , A. Chiummo , H. Cho , J. Chow , N. Christensen , S. S. Y. Chua , C. T. Y. Chung , S. Chung , G. Ciani , F. Clara , D. E. Clark , J. Clark , J. H. Clayton , F. Cleva , E. Coccia , P. -F. Cohadon , C. N. Colacino , J. Colas , A. Colla , M. Colombini , A. Conte , R. Conte , D. Cook , T. R. Corbitt , M. Cordier , N. Cornish , A. Corsi , C. A. Costa , M. Coughlin , J. -P. Coulon , P. Couvares , D. M. Coward , M. Cowart , D. C. Coyne , J. D. E. Creighton , T. D. Creighton , A. M. Cruise , A. Cumming , L. Cunningham , E. Cuoco , R. M. Cutler , K. Dahl , S. L. Danilishin , R. Dannenberg , S. D'Antonio , K. Danzmann , V. Dattilo , B. Daudert , H. Daveloza , M. Davier , E. J. Daw , R. Day , T. Dayanga , R. De Rosa , D. DeBra , G. Debreczeni , W. Del Pozzo , M. del Prete , T. Dent , V. Dergachev , R. DeRosa , R. DeSalvo , S. Dhurandhar , L. Di Fiore , A. Di Lieto , I. Di Palma , M. Di Paolo Emilio , A. Di Virgilio , M. Diaz , A. Dietz , F. Donovan , K. L. Dooley , M. Drago , R. W. P. Drever , J. C. Driggers , Z. Du , J. -C. Dumas , S. Dwyer , T. Eberle , M. Edgar , M. Edwards , A. Effler , P. Ehrens , G. Endroczi , R. Engel , T. Etzel , K. Evans , M. Evans , T. Evans , M. Factourovich , V. Fafone , S. Fairhurst , Y. Fan , B. F. Farr , D. Fazi , H. Fehrmann , D. Feldbaum , F. Feroz , I. Ferrante , F. Fidecaro , L. S. Finn , I. Fiori , R. P. Fisher , R. Flaminio , M. Flanigan , S. Foley , E. Forsi , L. A. Forte , N. Fotopoulos , J. -D. Fournier , J. Franc , S. Frasca , F. Frasconi , M. Frede , M. Frei , Z. Frei , A. Freise , R. Frey , T. T. Fricke , D. Friedrich , P. Fritschel , V. V. Frolov , M. -K. Fujimoto , P. J. Fulda , M. Fyffe , J. Gair , M. Galimberti , L. Gammaitoni , J. Garcia , F. Garufi , M. E. Gaspar , G. Gemme , R. Geng , E. Genin , A. Gennai , L. A. Gergely , S. Ghosh , J. A. Giaime , S. Giampanis , K. D. Giardina , A. Giazotto , S. Gil , C. Gill , J. Gleason , E. Goetz , L. M. Goggin , G. Gonzalez , M. L. Gorodetsky , S. Gossler , R. Gouaty , C. Graef , P. B. Graff , M. Granata , A. Grant , S. Gras , C. Gray , N. Gray , R. J. S. Greenhalgh , A. M. Gretarsson , C. Greverie , R. Grosso , H. Grote , S. Grunewald , G. M. Guidi , C. Guido , R. Gupta , E. K. Gustafson , R. Gustafson , T. Ha , J. M. Hallam , D. Hammer , G. Hammond , J. Hanks , C. Hanna , J. Hanson , J. Harms , G. M. Harry , I. W. Harry , E. D. Harstad , M. T. Hartman , K. Haughian , K. Hayama , J. -F. Hayau , J. Heefner , A. Heidmann , M. C. Heintze , H. Heitmann , P. Hello , M. A. Hendry , I. S. Heng , A. W. Heptonstall , V. Herrera , M. Hewitson , S. Hild , D. Hoak , K. A. Hodge , K. Holt , M. Holtrop , T. Hong , S. Hooper , D. J. Hosken , J. Hough , E. J. Howell , B. Hughey , S. Husa , S. H. Huttner , T. Huynh-Dinh , D. R. Ingram , R. Inta , T. Isogai , A. Ivanov , K. Izumi , M. Jacobson , E. James , Y. J. Jang , P. Jaranowski , E. Jesse , W. W. Johnson , D. I. Jones , G. Jones , R. Jones , L. Ju , P. Kalmus , V. Kalogera , S. Kandhasamy , G. Kang , J. B. Kanner , R. Kasturi , E. Katsavounidis , W. Katzman , H. Kaufer , K. Kawabe , S. Kawamura , F. Kawazoe , D. Kelley , W. Kells , D. G. Keppel , Z. Keresztes , A. Khalaidovski , F. Y. Khalili , E. A. Khazanov , B. Kim , C. Kim , H. Kim , K. Kim , N. Kim , Y. -M. Kim , P. J. King , D. L. Kinzel , J. S. Kissel , S. Klimenko , K. Kokeyama , V. Kondrashov , S. Koranda , W. Z. Korth , I. Kowalska , D. Kozak , O. Kranz , V. Kringel , S. Krishnamurthy , B. Krishnan , A. Krolak , G. Kuehn , R. Kumar , P. Kwee , P. K. Lam , M. Landry , B. Lantz , N. Lastzka , C. Lawrie , A. Lazzarini , P. Leaci , C. H. Lee , H. K. Lee , H. M. Lee , J. R. Leong , I. Leonor , N. Leroy , N. Letendre , J. Li , T. G. F. Li , N. Liguori , P. E. Lindquist , Y. Liu , Z. Liu , N. A. Lockerbie , D. Lodhia , M. Lorenzini , V. Loriette , M. Lormand , G. Losurdo , J. Lough , J. Luan , M. Lubinski , H. Luck , A. P. Lundgren , E. Macdonald , B. Machenschalk , M. MacInnis , D. M. Macleod , M. Mageswaran , K. Mailand , E. Majorana , I. Maksimovic , N. Man , I. Mandel , V. Mandic , M. Mantovani , A. Marandi , F. Marchesoni , F. Marion , S. Marka , Z. Marka , A. Markosyan , E. Maros , J. Marque , F. Martelli , I. W. Martin , R. M. Martin , J. N. Marx , K. Mason , A. Masserot , F. Matichard , L. Matone , R. A. Matzner , N. Mavalvala , G. Mazzolo , R. McCarthy , D. E. McClelland , S. C. McGuire , G. McIntyre , J. McIver , D. J. A. McKechan , S. McWilliams , G. D. Meadors , M. Mehmet , T. Meier , A. Melatos , A. C. Melissinos , G. Mendell , R. A. Mercer , S. Meshkov , C. Messenger , M. S. Meyer , C. Michel , L. Milano , J. Miller , Y. Minenkov , V. P. Mitrofanov , G. Mitselmakher , R. Mittleman , O. Miyakawa , B. Moe , M. Mohan , S. D. Mohanty , S. R. P. Mohapatra , D. Moraru , G. Moreno , N. Morgado , A. Morgia , T. Mori , S. R. Morriss , S. Mosca , K. Mossavi , B. Mours , C. M. Mow-Lowry , C. L. Mueller , G. Mueller , S. Mukherjee , A. Mullavey , H. Muller-Ebhardt , J. Munch , D. Murphy , P. G. Murray , A. Mytidis , T. Nash , L. Naticchioni , V. Necula , J. Nelson , G. Newton , T. Nguyen , A. Nishizawa , A. Nitz , F. Nocera , D. Nolting , M. E. Normandin , L. Nuttall , E. Ochsner , J. O'Dell , E. Oelker , G. H. Ogin , J. J. Oh , S. H. Oh , B. O'Reilly , R. O'Shaughnessy , C. Osthelder , C. D. Ott , D. J. Ottaway , R. S. Ottens , H. Overmier , B. J. Owen , A. Page , G. Pagliaroli , L. Palladino , C. Palomba , Y. Pan , C. Pankow , F. Paoletti , M. A. Papa , M. Parisi , A. Pasqualetti , R. Passaquieti , D. Passuello , P. Patel , M. Pedraza , P. Peiris , L. Pekowsky , S. Penn , A. Perreca , G. Persichetti , M. Phelps , M. Pickenpack , F. Piergiovanni , M. Pietka , L. Pinard , I. M. Pinto , M. Pitkin , H. J. Pletsch , M. V. Plissi , R. Poggiani , J. Pold , F. Postiglione , M. Prato , V. Predoi , T. Prestegard , L. R. Price , M. Prijatelj , M. Principe , S. Privitera , R. Prix , G. A. Prodi , L. G. Prokhorov , O. Puncken , M. Punturo , P. Puppo , V. Quetschke , R. Quitzow-James , F. J. Raab , D. S. Rabeling , I. Racz , H. Radkins , P. Raffai , M. Rakhmanov , B. Rankins , P. Rapagnani , V. Raymond , V. Re , K. Redwine , C. M. Reed , T. Reed , T. Regimbau , S. Reid , D. H. Reitze , F. Ricci , R. Riesen , K. Riles , N. A. Robertson , F. Robinet , C. Robinson , E. L. Robinson , A. Rocchi , S. Roddy , C. Rodriguez , M. Rodruck , L. Rolland , J. G. Rollins , J. D. Romano , R. Romano , J. H. Romie , D. Rosinska , C. Rover , S. Rowan , A. Rudiger , P. Ruggi , K. Ryan , P. Sainathan , F. Salemi , L. Sammut , V. Sandberg , V. Sannibale , L. Santamaria , I. Santiago-Prieto , G. Santostasi , B. Sassolas , B. S. Sathyaprakash , S. Sato , P. R. Saulson , R. L. Savage , R. Schilling , R. Schnabel , R. M. S. Schofield , E. Schreiber , B. Schulz , B. F. Schutz , P. Schwinberg , J. Scott , S. M. Scott , F. Seifert , D. Sellers , D. Sentenac , A. Sergeev , D. A. Shaddock , M. Shaltev , B. Shapiro , P. Shawhan , D. H. Shoemaker , A. Sibley , X. Siemens , D. Sigg , A. Singer , L. Singer , A. M. Sintes , G. R. Skelton , B. J. J. Slagmolen , J. Slutsky , J. R. Smith , M. R. Smith , R. J. E. Smith , N. D. Smith-Lefebvre , K. Somiya , B. Sorazu , J. Soto , F. C. Speirits , L. Sperandio , M. Stefszky , A. J. Stein , L. C. Stein , E. Steinert , J. Steinlechner , S. Steinlechner , S. Steplewski , A. Stochino , R. Stone , K. A. Strain , S. E. Strigin , A. S. Stroeer , R. Sturani , A. L. Stuver , T. Z. Summerscales , M. Sung , S. Susmithan , P. J. Sutton , B. Swinkels , M. Tacca , L. Taffarello , D. Talukder , D. B. Tanner , S. P. Tarabrin , J. R. Taylor , R. Taylor , P. Thomas , K. A. Thorne , K. S. Thorne , E. Thrane , A. Thuring , K. V. Tokmakov , C. Tomlinson , A. Toncelli , M. Tonelli , O. Torre , C. Torres , C. I. Torrie , E. Tournefier , F. Travasso , G. Traylor , K. Tseng , D. Ugolini , H. Vahlbruch , G. Vajente , J. F. J. van den Brand , C. Van Den Broeck , S. van der Putten , A. A. van Veggel , S. Vass , M. Vasuth , R. Vaulin , M. Vavoulidis , A. Vecchio , G. Vedovato , J. Veitch , P. J. Veitch , C. Veltkamp , D. Verkindt , F. Vetrano , A. Vicere , A. E. Villar , J. -Y. Vinet , S. Vitale , S. Vitale , H. Vocca , C. Vorvick , S. P. Vyatchanin , A. Wade , L. Wade , M. Wade , S. J. Waldman , L. Wallace , Y. Wan , M. Wang , X. Wang , Z. Wang , A. Wanner , R. L. Ward , M. Was , M. Weinert , A. J. Weinstein , R. Weiss , L. Wen , P. Wessels , M. West , T. Westphal , K. Wette , J. T. Whelan , S. E. Whitcomb , D. J. White , B. F. Whiting , C. Wilkinson , P. A. Willems , L. Williams , R. Williams , B. Willke , L. Winkelmann , W. Winkler , C. C. Wipf , A. G. Wiseman , H. Wittel , G. Woan , R. Wooley , J. Worden , I. Yakushin , H. Yamamoto , K. Yamamoto , K. Yamamoto , C. C. Yancey , H. Yang , D. Yeaton-Massey , S. Yoshida , P. Yu , M. Yvert , A. Zadrozny , M. Zanolin , J. -P. Zendri , F. Zhang , L. Zhang , W. Zhang , C. Zhao , N. Zotov , M. E. Zucker , J. Zweizig

Binary black hole mergers and intermediate-mass black holes in dense star clusters with collisional runaways

Intermediate-mass black holes (IMBHs) are believed to be the missing link between the supermassive black holes (BHs) found at the centers of massive galaxies and BHs formed through stellar core collapse. One of the proposed mechanisms for…

Astrophysics of Galaxies · Physics 2024-03-14 Rujuta A. Purohit , Giacomo Fragione , Frederic A. Rasio , Grayson C. Petter , Ryan C. Hickox

Quantum Enhancement of the Zero-Area Sagnac Interferometer Topology for Gravitational Wave Detection

Only a few years ago, it was realized that the zero-area Sagnac interferometer topology is able to perform quantum nondemolition measurements of position changes of a mechanical oscillator. Here, we experimentally show that such an…

Quantum Physics · Physics 2014-11-21 Tobias Eberle , Sebastian Steinlechner , Jöran Bauchrowitz , Vitus Händchen , Henning Vahlbruch , Moritz Mehmet , Helge Müller-Ebhardt , Roman Schnabel

An Event Horizon Imager (EHI) Mission Concept Utilizing Medium Earth Orbit Sub-mm Interferometry

Submillimeter interferometry has the potential to image supermassive black holes on event horizon scales, providing tests of the theory of general relativity and increasing our understanding of black hole accretion processes. The Event…

Instrumentation and Methods for Astrophysics · Physics 2021-05-17 V. Kudriashov , M. Martin-Neira , F. Roelofs , H. Falcke , C. Brinkerink , A. Baryshev , M. Hogerheijde , A. Young , H. Pourshaghaghi , M. Klein-Wolt , M. Moscibrodzka , J. Davelaar , I. Barat , B. Duesmann , V. Valenta , J. M. Perdigues Armengol , D. De Wilde , P. Martin Iglesias , N. Alagha , M. Van Der Vorst

Tests of general relativity using multiband observations of intermediate mass binary black hole mergers

Observation of gravitational waves (GWs) in two different frequency bands is referred to as multiband GW astronomy. With the planned Laser Interferometric Space Antenna (LISA) operating in the $10^{-4}-0.1$ Hz range, and third generation…

General Relativity and Quantum Cosmology · Physics 2021-03-17 Sayantani Datta , Anuradha Gupta , Shilpa Kastha , K. G. Arun , B. S. Sathyaprakash

Machine Learning Confirms GW231123 is a "Lite" Intermediate Mass Black Hole Merger

The LIGO-Virgo-KAGRA Collaboration recently reported GW231123, a black hole merger with total mass of around 190-265 solar mass. This event adds to the growing evidence of "lite" intermediate mass black hole (IMBH) discoveries of…

High Energy Astrophysical Phenomena · Physics 2025-12-08 Chayan Chatterjee , Kaylah McGowan , Suyash Deshmukh , Karan Jani

Goals of the ARISE Space VLBI Mission

Supermassive black holes, with masses of 10^6 to more than 10^9 solar masses, are among the most spectacular objects in the Universe, and are laboratories for physics in extreme conditions. The primary goal of ARISE (Advanced Radio…

Astrophysics · Physics 2009-10-31 James S. Ulvestad

Is there potential complementarity between LISA and pulsar timing?

We open the discussion into how the Laser Interferometer Space Antenna (LISA) observations of supermassive black-hole (SMBH) mergers (in the mass range ~10^6-10^8 Msun) may be complementary to pulsar timing-based gravitational wave…

Astrophysics · Physics 2009-06-23 Matthew Pitkin , James Clark , Martin A. Hendry , Ik Siong Heng , Chris Messenger , Jennifer Toher , Graham Woan

Adapting a novel framework for rapid inference of massive black hole binaries for LISA

The Laser Interferometer Space Antenna (LISA) is designed to detect a variety of gravitational-wave events, including mergers of massive black hole binaries, stellar-mass black hole inspirals, and extreme mass-ratio inspirals. LISA's…

General Relativity and Quantum Cosmology · Physics 2025-03-28 Aasim Jan , Richard O'Shaughnessy , Deirdre Shoemaker , Jacob Lange

Operating LISA as a Sagnac interferometer

A phase-locking configuration for LISA is proposed that provides a significantly simpler mode of operation. The scheme provides one Sagnac signal readout inherently insensitive to laser frequency noise and optical bench motion for a…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Daniel A. Shaddock

Intermediate-Mass Black Holes as LISA Sources

Intermediate-mass black holes (IMBHs), with masses of hundreds to thousands of solar masses, will be unique sources of gravitational waves for LISA. Here we discuss their context as well as specific characteristics of IMBH-IMBH and…

Astrophysics · Physics 2010-04-21 M. Coleman Miller

Estimating Stochastic Gravitational Wave Backgrounds with Sagnac Calibration

Armstrong et al. have recently presented new ways of combining signals to precisely cancel laser frequency noise in spaceborne interferometric gravitational wave detectors such as LISA. One of these combinations, the symmetrized Sagnac…

Astrophysics · Physics 2014-10-13 Craig J. Hogan , Peter L. Bender

Detection of IMBHs with ground-based gravitational wave observatories: A biography of a binary of black holes, from birth to death

Even though the existence of intermediate-mass black holes (IMBHs, black holes with masses ranging between $10^{2-4}\,M_{\odot}$) has not yet been corroborated observationally, these objects are of high interest for astrophysics. Our…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Pau Amaro-Seoane , Lucia Santamaria

Parameter Estimation for Stellar-Origin Black Hole Mergers In LISA

The population of stellar origin black hole binaries (SOBHBs) detected by existing ground-based gravitational wave detectors is an exciting target for the future space-based Laser Interferometer Space Antenna (LISA). LISA is sensitive to…

General Relativity and Quantum Cosmology · Physics 2023-08-09 Matthew C. Digman , Neil J. Cornish

Search for intermediate mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo

Intermediate-mass black holes (IMBHs) span the approximate mass range $100$--$10^5\,M_\odot$, between black holes (BHs) formed by stellar collapse and the supermassive BHs at the centers of galaxies. Mergers of IMBH binaries are the most…

High Energy Astrophysical Phenomena · Physics 2022-03-16 The LIGO Scientific Collaboration , the Virgo Collaboration , the KAGRA Collaboration

Radio Interferometric Calibration Using The SAGE Algorithm

Radio Interferometry is an essential method for astronomical observations. Self-calibration techniques have increased the quality of the radio astronomical observations (and hence the science) by orders of magnitude. Recently, there is a…

Astrophysics · Physics 2008-11-03 Sarod Yatawatta , Saleem Zaroubi , Ger de Bruyn , Leon Koopmans , Jan Noordam

Multiband gravitational wave observations of stellar binary black holes at the low to middle and high frequencies

The ground-based gravitational wave (GW) observatories discover a population of merging stellar binary black holes (BBHs), which are promising targets for multiband observations by the low-, middle-, and high-frequency GW detectors. In this…

High Energy Astrophysical Phenomena · Physics 2023-06-06 Yuetong Zhao , Youjun Lu , Changshuo Yan , Zhiwei Chen , Wei-Tou Ni

Music from the heavens - Gravitational waves from supermassive black hole mergers in the EAGLE simulations

We estimate the expected event rate of gravitational wave signals from mergers of supermassive black holes that could be resolved by a space-based interferometer, such as the Evolved Laser Interferometer Space Antenna (eLISA), utilising the…

Astrophysics of Galaxies · Physics 2016-08-24 Jaime Salcido , Richard G. Bower , Tom Theuns , Stuart McAlpine , Matthieu Schaller , Robert A. Crain , Joop Schaye , John Regan