Pulsar timing array
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Globally there are several active pulsar timing array efforts. The first three projects (PPTA, EPTA, and NANOGrav) have begun collaborating under the title of the [[International Pulsar Timing Array]] project, InPTA became a member in 2021. Recently China has also become active although not a full member of IPTA yet. |
Globally there are several active pulsar timing array efforts. The first three projects (PPTA, EPTA, and NANOGrav) have begun collaborating under the title of the [[International Pulsar Timing Array]] project, InPTA became a member in 2021. Recently China has also become active although not a full member of IPTA yet. |
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Additionally, there is a gamma-ray pulsar timing array using the [[Fermi Gamma-ray Space Telescope]]. |
Additionally, there is a gamma-ray pulsar timing array using the [[Fermi Gamma-ray Space Telescope]]{{cite journal |title=A gamma-ray pulsar timing array constrains the nanohertz gravitational wave background |journal=Science |date=29 April 2022 |volume=376 |issue=6592 |pages=521–523 |doi=10.1126/science.abm3231}}. |
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# The [http://www.atnf.csiro.au/research/pulsar/ppta/ Parkes Pulsar Timing Array] (PPTA) at the [[Parkes Observatory|Parkes radio-telescope]] has been collecting data since 2005. |
# The [http://www.atnf.csiro.au/research/pulsar/ppta/ Parkes Pulsar Timing Array] (PPTA) at the [[Parkes Observatory|Parkes radio-telescope]] has been collecting data since 2005. |
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# The Chinese Pulsar Timing Array (CPTA) uses the [[Five-hundred-meter Aperture Spherical radio Telescope]] (FAST).{{Cite journal |last1=Zhao |first1=Wen |last2=Zhang |first2=Yang |last3=You |first3=Xiao-Peng |last4=Zhu |first4=Zong-Hong |date=2013-06-13 |title=Constraints of relic gravitational waves by pulsar timing arrays: Forecasts for the FAST and SKA projects |journal=Physical Review D |volume=87 |issue=12 |article-number=124012 |doi=10.1103/physrevd.87.124012 |arxiv=1303.6718 |bibcode=2013PhRvD..87l4012Z |s2cid=55090406 |issn=1550-7998}} |
# The Chinese Pulsar Timing Array (CPTA) uses the [[Five-hundred-meter Aperture Spherical radio Telescope]] (FAST).{{Cite journal |last1=Zhao |first1=Wen |last2=Zhang |first2=Yang |last3=You |first3=Xiao-Peng |last4=Zhu |first4=Zong-Hong |date=2013-06-13 |title=Constraints of relic gravitational waves by pulsar timing arrays: Forecasts for the FAST and SKA projects |journal=Physical Review D |volume=87 |issue=12 |article-number=124012 |doi=10.1103/physrevd.87.124012 |arxiv=1303.6718 |bibcode=2013PhRvD..87l4012Z |s2cid=55090406 |issn=1550-7998}} |
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# The MeerKAT Pulsar Timing Array (MPTA), part of MeerTime, a [[MeerKAT]] Large Survey Project. The MPTA aims to precisely measure pulse arrival times from an ensemble of 88 pulsars visible from the Southern hemisphere, with the goal of contributing to the search, detection, and study of nanohertz-frequency gravitational waves as part of the [[International Pulsar Timing Array]]. |
# The MeerKAT Pulsar Timing Array (MPTA), part of MeerTime, a [[MeerKAT]] Large Survey Project. The MPTA aims to precisely measure pulse arrival times from an ensemble of 88 pulsars visible from the Southern hemisphere, with the goal of contributing to the search, detection, and study of nanohertz-frequency gravitational waves as part of the [[International Pulsar Timing Array]]. |
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# The Gamma-ray Pulsar Timing Array, whose current member is the [[Fermi Gamma-ray Space Telescope]]. |
# The Gamma-ray Pulsar Timing Array, whose current member is the [[Fermi Gamma-ray Space Telescope]]. |
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