Abstract
The sensitivity of our pulsar observation system with typical integration time of 16 minutes has reached 0.4 mJy after we have upgraded the receiver cooling system of NanShan 25-m radio telescope (NSRT) at Xinjiang Astronomical Observatory (XAO) in 2002. About 280 pulsars were observed after the upgrade. The NanShan station pulsar data is transmitted to the data center at XAO headquarters via a 300Mb/s dedicated data link for long-term storage, and the remote backup is realized by synchronous data transmission between NanShan station and XAO headquarters. Metadata extraction, archiving, and releasing are completed by the data release servers which are located in XAO headquarters. At present, more than 84000 pulsar observation data files in the PSRFITS format have been released with a maximum file size of 1GB. XAO pulsar data online service provides cone search and multiobject constraint query. We have published our data based on Virtual Observatory (VO) standards. The online pulsar data service is registered in the International Virtual Observatory Alliance’s Registry. Users can access the data through common VO tools.
Highlights
A Pulsar [1] is a highly magnetized rotating neutron star that emits a beam of electromagnetic radiation
The NanShan station pulsar data is transmitted to the data center at Xinjiang Astronomical Observatory (XAO) headquarters via a 300Mb/s dedicated data link for long-term storage, and the remote backup is realized by synchronous data transmission between NanShan station and XAO headquarters
Metadata extraction, archiving, and releasing are completed by the data release servers which are located in XAO headquarters
Summary
A Pulsar [1] is a highly magnetized rotating neutron star that emits a beam of electromagnetic radiation. Pulsar observation research is helpful to reveal the mystery of the birth and evolution of the universe and has very important scientific significance to promote the development of astrophysics, particle physics, and spacecraft navigation. It has always been a hot spot in the field of astronomy and astrophysics. NSRT is an important member of VLBI network in China It has carried out regular pulsar timing observation since Jan 2010. The CSIRO DAP allows querying and download of pulsar data by any user; some data are subject to an embargo period In this case, members of a science team can log in with their account to access their data during the embargo period. The NSRT pulsar data retrieval service provides similar functionality to Parkes
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