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Detection of Pulses from the Vela Pulsar at Millimeter Wavelengths with Phased ALMA

Kuo LiuMax-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany; [email protected]André YoungDepartment of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University, P.O. Box 9010, 6500 GL Nijmegen, The NetherlandsRobert WhartonMax-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany; [email protected]Lindy BlackburnCenter for Astrophysics∣Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USARoger CappalloMassachusetts Institute of Technology Haystack Observatory, 99 Millstone Road, Westford, MA 01886, USAShami ChatterjeeCornell Center for Astrophysics and Planetary Science, Cornell University, Ithaca, NY 14853, USAJ. M. CordesCornell Center for Astrophysics and Planetary Science, Cornell University, Ithaca, NY 14853, USAG. CrewMassachusetts Institute of Technology Haystack Observatory, 99 Millstone Road, Westford, MA 01886, USAG. DesvignesMax-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany; [email protected]Sheperd S. DoelemanCenter for Astrophysics Harvard & SmithsonianRalph P. EatoughMax-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany; [email protected]H. FalckeDepartment of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University, P.O. Box 9010, 6500 GL Nijmegen, The NetherlandsCiriaco GoddiLeiden Observatory—Allegro, Leiden University, P.O. Box 9513, 2300 RA Leiden, The NetherlandsMichael D. JohnsonCenter for Astrophysics Harvard & SmithsonianS. JohnstonAustralia Telescope National FacilityR. KaruppusamyMax-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany; [email protected]Michael KramerMax-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany; [email protected]Lynn D. MatthewsMassachusetts Institute of Technology Haystack Observatory, 99 Millstone Road, Westford, MA 01886, USAS. M. RansomNational Radio Astronomy Observatory, Charlottesville, VA 22903, USALuciano RezzollaInstitut für Theoretische Physik, Goethe-Universität Frankfurt, Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, GermanyHelge RottmannMax-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany; [email protected]R. P. J. TilanusDepartment of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University, P.O. Box 9010, 6500 GL Nijmegen, The NetherlandsPablo TornéMax-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany; [email protected]

2019en

ABI

Annotatsiya

We report on the first detection of pulsed radio emission from a radio pulsar with the Atacama Large Millimeter/submillimeter Array (ALMA) telescope. The detection was made in the Band-3 frequency range (85-101 GHz) using ALMA in the phased-array mode developed for VLBI observations. A software pipeline has been implemented to enable a regular pulsar observing mode in the future. We describe the pipeline and demonstrate the capability of ALMA to perform pulsar timing and searching. We also measure the flux density and polarization properties of the Vela pulsar (PSR J0835-4510) at millimeter wavelengths, providing the first polarimetric study of any ordinary pulsar at frequencies above 32 GHz. Finally, we discuss the lessons learned from the Vela observations for future pulsar studies with ALMA, particularly for searches near the supermassive black hole in the Galactic center, and the potential of using pulsars for polarization calibration of ALMA.

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Identifikatorlar

DOI: 10.3847/2041-8213/ab4da8

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