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Apr 24, 2024

Improving timing precision of millisecond pulsars using polarization

Used data obtained from the Five-hundred-meter Aperture Spherical Radio Telescope ( FAST ) to carry out a study of white noise in MSPs . The study was published in The Astrophysical Journal . The researchers presented measurements of the...Pulsar timing enables the most stringent tests of fundamental physics. By monitoring the pulse times of arrival (ToAs) of an ensemble of stable millisecond pulsars (MSPs), known as a pulsar timing array (PTA), it is possible to detect na...
Apr 19, 2024

Pulsars with non-stopping pulsed emission

Radio pulsars are well known for their regular pulses .The researchers from Xinjiang Astronomical Observatory ( XAO ) of the Chinese Academy of Sciences ( CAS ) used simulation to investigate the properties of the non-nulling pulsars .Co...Radio pulsars are well known for their regular pulses. However, the pulsed emission from some radio pulsars can suddenly go off for a short period of time and come back on again, with this on-and-off repeating indefinitely. Known as puls...
Mar 21, 2024

XAO NanShan 26-m Radio Telescope Successfully Ran 4-Gbps VLBI Test Observations

The Very Long Baseline Interferometry ( VLBI ) operation team at the Nanshan Station of Xinjiang Astronomical Observatory( XAO ) has recently got the NanShan 26 - meter Radio Telescope ( NSRT ) to participate in 4 - Gbps VLBI observation...Recently, the Very Long Baseline Interferometry (VLBI) operation team at the Nanshan Station of Xinjiang Astronomical Observatory (XAO) ,Chinese Academy of Sciences, operated the NanShan 26-meter Radio Telescope (NSRT) to participate in ...
Mar 21, 2024

Researchers have made progress studying the carbon-rich AGB star IRC+10216 (CW Leo) at 3mm band

IRC+10216 (CW Leo) is the closest and the brightest carbon-rich (C /O > 1) asymptotic giant branch (AGB) star. Astronomers have detected 106 different species (not including isotopologues) in its circumstellar envelope (CSE), making this...IRC+10216 (CW Leo) is the closest and the brightest carbon-rich (C /O > 1) asymptotic giant branch (AGB) star. Astronomers have detected 106 different species (not including isotopologues) in its circumstellar envelope (CSE), making this...
Mar 21, 2024

Study highlights impact of C/O ratio on sulfur depletion in TMC-1

It is crucial to estimate the elemental depletion in the interstellar medium ( ISM ) to successfully and accurately simulate the chemical evolution in various astrophysical environments such as molecular clouds or star forming regions .U...It is crucial to estimate the elemental depletion in the interstellar medium (ISM) to successfully and accurately simulate the chemical evolution in various astrophysical environments such as molecular clouds or star forming regions.Curr...
Mar 07, 2024

Researchers Discover a New Pulsar Possibly Associated with a Supernova Remnant

Recently , a master ’ s student ZHANG Zhen supervised by Professor YAN Wenming from the pulsar research group of Xinjiang Astronomical Observatory , Chinese Academy of Sciences .Search results for the pulsar PSR J1845-0306 Contact : ZHA...Recently, a master’s student ZHANG Zhen supervised by Professor YAN Wenming from the pulsar research group of Xinjiang Astronomical Observatory, Chinese Academy of Sciences, used the Five-hundred-meter Aperture Spherical Radio Telescope...

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