Статья

Reference Array and Design Consideration for the Next-Generation Event Horizon Telescope

Sheperd S. DoelemanBlack Hole Initiative, Harvard University, 20 Garden Street, Cambridge, MA 02138, USAJ. BarrettMassachusetts Institute of Technology Haystack Observatory, 99 Millstone Road, Westford, MA 01886, USALindy BlackburnBlack Hole Initiative, Harvard University, 20 Garden Street, Cambridge, MA 02138, USAKatherine L. BoumanCalifornia Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USAAvery E. BroderickDepartment of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, CanadaRyan ChavesCenter for Astrophysics|Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USAVincent L. FishMassachusetts Institute of Technology Haystack Observatory, 99 Millstone Road, Westford, MA 01886, USAGarret FitzpatrickCenter for Astrophysics|Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USAMark FreemanCenter for Astrophysics|Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USAAntonio FuentesInstituto de Astrofísica de Andalucía-CSIC, Glorieta de la Astronomía s/n, E-18008 Granada, SpainJosé L. GómezInstituto de Astrofísica de Andalucía-CSIC, Glorieta de la Astronomía s/n, E-18008 Granada, SpainKari HaworthCenter for Astrophysics|Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USAJanice HoustonCenter for Astrophysics|Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USASara IssaounCenter for Astrophysics|Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USAMichael D. JohnsonBlack Hole Initiative, Harvard University, 20 Garden Street, Cambridge, MA 02138, USAMark KettenisJoint Institute for VLBI ERIC (JIVE), Oude Hoogeveensedijk 4, 7991 PD Dwingeloo, The NetherlandsLaurent LoinardInstituto de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México, Morelia 58089, MexicoNeil M. NagarAstronomy Department, Universidad de Concepción, Casilla 160-C, Concepción 4030000, ChileGopal NarayananDepartment of Astronomy, University of Massachusetts, Amherst, MA 01003, USAAaron OppenheimerCenter for Astrophysics|Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USADaniel C. M. PalumboBlack Hole Initiative, Harvard University, 20 Garden Street, Cambridge, MA 02138, USANimesh PatelCenter for Astrophysics|Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USAD. W. PesceBlack Hole Initiative, Harvard University, 20 Garden Street, Cambridge, MA 02138, USAAlexander W. RaymondCenter for Astrophysics|Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USAFreek RoelofsBlack Hole Initiative, Harvard University, 20 Garden Street, Cambridge, MA 02138, USARanjani SrinivasanCenter for Astrophysics|Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USAPaul TiedeBlack Hole Initiative, Harvard University, 20 Garden Street, Cambridge, MA 02138, USAJonathan WeintroubBlack Hole Initiative, Harvard University, 20 Garden Street, Cambridge, MA 02138, USAMaciek WielgusMax–Planck–Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany

2023en

ABI

Аннотация

We describe the process to design, architect, and implement a transformative enhancement of the Event Horizon Telescope (EHT). This program—the next-generation Event Horizon Telescope (ngEHT)—will form a networked global array of radio dishes capable of making high-fidelity real-time movies of supermassive black holes (SMBH) and their emanating jets. This builds upon the EHT principally by deploying additional modest-diameter dishes to optimized geographic locations to enhance the current global mm/submm wavelength Very Long Baseline Interferometric (VLBI) array, which has, to date, utilized mostly pre-existing radio telescopes. The ngEHT program further focuses on observing at three frequencies simultaneously for increased sensitivity and Fourier spatial frequency coverage. Here, the concept, science goals, design considerations, station siting, and instrument prototyping are discussed, and a preliminary reference array to be implemented in phases is described.

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Идентификаторы

DOI: 10.3390/galaxies11050107

Цитирования и источники

Цитирований: 3Использованных источников: 0

Показатели — AkademScholar