NARIT Researcher Shines at SEAYAC 2014

October 21-22, 2014

Today, Dr. Phrudth Jaroenjittichai, NARIT researcher puts his work on display at SEAYAC 2014. His talk – Pulsar Search with PMPS Monitoring Dataset kicks off with a great response from the audience. In his talk, he mentions that Pulsar search has always been one of the most active fields. It allows astronomers to discover new phenomena, which either challenge or confirm our current knowledge. The most-successful Parkes Multibeam Pulsar Survey (PMPS) has led us to discover over a third of currently known pulsars. The long-term monitoring programme for PMPS pulsars has been initiated, containing over 35,000 observations from 785 sources. 

The PMPS monitoring dataset is suitable for pulsar search because the data is recorded in search mode and the 15-arcmin Parkes’ pointing provides a good coverage of the galactic plane. In addition, its timespan of over ten years is also ideal for searching for time-variability and intermittency.


A 3rd year Physics student from Chiang Mai University, Mr. Jompoj Wongphet-aksorn, also contributes a talk on Autonomous Technology in Space Navigation. He claims that such technology is a key to explore the solar system. However, the current space navigation technology requires direct communication between spacecraft and ground-based station. In order to find the new method, which does not require the ground-based station, the Doppler effect technique has been used along with the rotation period of pulsar to evaluate the spacecraft’s velocity. Several equations were used to evaluate the space craft’s velocities in x,y,z directions , along with pulsar’s position in three dimensions , which relate to the pulse profile influenced by Doppler effect. The evaluation procedure was done by C/C++ program. The error of this method can be estimated from variances in input velocity in x, y, z directions and in output velocities in x, y, z directions.


Southeast Asian Young Astronomers Collaboration or SEAYAC is a group for young astronomers in South East Asian Region. The main objective of SEAYAC is to encourage interaction and collaborations between young astronomers from all Southeast Asian nations. The members of SEAYAC meet at least once a year and the venue of the meeting will be rotated among all Southeast Asian countries or done in conjunction with SEAAN or IAU meetings. As for SEAYAC 2014, it has been hosted during October 21-22, 2014 in Kuala Lumpur, Malaysia. 


Dr. Phrudth Jaroenjittichai obtained his MSc., and Ph.D., in Astronomy and Astrophysics from the University of Manchester, UK with his specialization in Radio Astronomy. He is currently working with NARIT as a researcher. 


SEAYAC 2014 participants


Mr. Jompoj Wongphet-aksorn gives a talk on Autonomous Technology in Space Navigation