ANNOUNCEMENT

Approved Projects in 2020

2021-02-10

Key Projects
Title PI name Abstract
The Commensal Radio Astronomy FAST Survey (CRAFTS) Di Li CRAFTS is a fully open, commensal, service survey, which aims to cover the full FAST sky in drift scan mode. With the 19 beam tilted to a certain angle, each drift scan covers about 21' in DEC. Combined with the proper shift and stacking, CRAFTS achieves super-Nyqvist (1.3' spacing in DEC) and even sampling of the sky, which produces unprecedented imaging quality and survey efficiency. Enabled by our novel and proprietary high-cadence CAL injection technique, CRAFTS can simultaneously take four independent data streams, namely, Galactic HI (10 MHz band), extra-galactic HI (400 MHz full band), pulsar search, and transient (FRB/SETI). One-pass coverage of the FAST sky will require about 5500 hours. In the next five years, the priority will be given to DEC -14 to +5.5. The survey team promises to deliver CRAFTS data with the basic calibration (i.e. Tsys applied to the data header) and high-cadence CAL signal processed. Any interested colleague can still join the survey and get access to raw and level 1 data immediately after data taking. The high-cadence CAL technique is not limited to drift-scan mode. We encourage anyone who wishes to reap the benefit of either effective sky coverage or commensality to try out the high-cadence mode. Upon request, the survey team will provide the pipeline or carry out the basic calibration for you, with no prerequisite authorship request. Our goal is to preserve the potential to combine all data taken in CRAFTS mode into a coherent set when they become public. For more detailed technical description, current coverage, survey membership, confirmed pulsar discoveries, etc., please refer to https://crafts.bao.ac.cn and Li et al. 2018 (https://ui.adsabs.harvard.edu/abs/2018IMMag..19..112L/abstract).
The Galactic Plane Pulsar Snapshot (GPPS) survey JinLin Han The Five-hundred-meter Aperture Spherical radio Telescope (FAST)with the L-band 19-beam receiver with a system temperature of about 20~K is the most sensitive radio telescope to discover pulsars. We designed the snapshot observation mode for a FAST key science project, the Galactic Plane Pulsar Snapshot (GPPS) survey, in which every four nearby pointings can observe a cover of a sky area of 0.1575 square degree through beam-switching of the L-band 19-beam receiver. The integration time for each pointing is 300 seconds so that the GPPS observations for a cover can be made in 21 minutes. The goal of the GPPS survey is to discover 1000 pulsars down to a sensitivity of a few microJy level in the Galactic disk (both inner and outer disk) within the Galactic latitude of ±10º from the Galactic plane, and the highest priority is given to the inner Galaxy within ±5º. The most important goal is to find exotic pulsars, especially pulsars with a very short spin period or a short orbit period or with a large mass or pulsars in neutron-star black-hole binary.
Pulsar timing: Chinese pulsar timing array Kejia Lee To detect gravitational wave radiating sources and study their extreme violent astrophysical processes on cosmological scale, we need to detect the gravitational waves (GWs) from the super massive black hole binaries (SMBHBs) in spiraling or merging states. The GW radiation of those massive objects fall in the nanoHertz band (nHz). Pulsar timing array (PTA) is the potential technique to detect nHz GWs. Thus, it is necessary to carry out PTA experiment in order to further develop the discipline of GW astronomy. It will provide the important missing piece on the current GW observation atlas, where the GW spectrum frequency atlas will be extended 11 order of magnitude down, i.e., from ~100 Hz to nHz. Due to the high sensitivity of FAST, systematically carrying out FAST PTA observation may lead to break through of nHz GW detection.
With the high precision FAST pulsar timing data, Chinese pulsar timing array (CPTA) will be able to join the International Pulsar Timing Array (IPTA) to collaborate and to compete for the scientific output. Furthermore, the long-term precision pulsar timing will also provide extremely valuable data for fundamental physics and metrological researches.
We proposed to start the CPTA project by observing 46 known millisecond pulsars in the IPTA list, with the aims of 1) achieving GW detection or best GW amplitude upper limits, 2) pulsar jitter noise, red noise, interstellar medium noise studies, and forming pulsar timescale with FAST observations, 3) studying the binary pulsar dynamics and constrain the equation of states for zero-temperature nuclear density matters, and 4) studying Solar system dynamics, planet orbital dynamics and solar system acceleration.
HI Mapping and pulsars searching toward M31 region Jie Wang We will blind map a region of 700 square degrees around the M31 and its dark matter halo in L band with about 700 FAST hours. In this survey, we will try to study the HVC mass function, HI satellite mass function in M31 halo, and cold CGM and ICM in the M31-M33 systems. Finally a HI galaxy sample up to z=0.35 in this region will be constructed and published. Also a very deep commensal survey on the M31 galaxy for a ultra-deep HI mapping and pulsar searching will be carried out. Combined with other multi-band information, we could investigate into the detailed physics on the star formation in this nearest neighbor galaxy. Finally several special populations of dwarf galaxies in the local Universe (blue compacted dwarf, spiral dwarf, and dwarf hosts of AGNS ) will be observed with FAST to understand their formation history.  
Fast radio burst searches and multi-wavelength observations Bing Zhang, Weiwei Zhu Fast radio bursts (FRBs) are a new type of mysterious astrophysical transients discovered in 2007. This key project aims at monitoring and observing known and potential FRB sources taking advantage of the high sensitivity of FAST. Simultaneous multi-wavelength observations will be coordinated. We plan to perform observations in the following four directions. 1. Regularly monitor known repeating FRB sources (such as FRB 121102 and 180301); 2. Monitor new repeating sources (such as the ones discovered by FAST and other telescopes such as CHIME); 3. Observe other one-off FRB sources that have not repeated yet, trying to search for possible repeated bursts; 4. Monitor some sources that could be potentially FRB emitters, including soft gamma-ray repeaters (SGRs), nearby star burst galaxies, and GRB/SLSN remnants. When feasible, multi-wavelength observations will be carried out during FAST observing windows. The goal of the key project is to collect essential information to understand the origin, bursting mechanism and radiation mechanism of FRBs.
Pulsar timing:  Physics and evolution of pulsars Na Wang  In this project, we will carry out follow-up observations on the new pulsars discovered by FAST. The primary objective is to perform timing observations on the pulsars for 1-3 years. This will make possible for precise measurements and cataloging of their spin and astrometric parameters in order to obtain the population properties of the FAST new pulsars and investigate their birth and evolution in large sample. We will focus on sources with distinctive characteristics, such as binary pulsars, intermittent pulsars and very young pulsars. The information is useful for distinguishing the timing noise between internal and external origins in the pulsars, which is crucial for exploring the connection between pulsar braking and activities in the magnetospheres. We seek to optimize the astronomical and technical methods to improve the timing precision in examining the evolution of binaries, testing relativistic effect and studying the physical properties of interstellar medium and circumstellar matter.

 

Regular Projects
Title PI name Grade
Finding Pulsars in Nearby Dwarf Galaxies Ralph Eatough A
Study of state switching pulsars wangjingbo wang A
 Maximising the detection probability for ultra-low-frequency gravitational waves wangjingbo wang A
Timing of Two New Spider Globular Cluster Pulsars Discovered by FAST Zhichen Pan A
Periodic radio pulses from the cool dwarf, binary and young exoplanetary system using FAST liyun Zhang A
Searching for close planets around AD Leo based on its radio flare monitoring Yang Gao A
A Search for Small Scale Structures in the ISM (Few to Hundreds of AU Scales) Mengting Liu A
Search for unconfirmed pulsars detected by FAST Zhigang Wen A
The emission variation study for a millisecond pulsar PSR J0636+5129 shuangqiang wang A
Follow up observations of a FAST-discovered spider pulsar: PSR J1720-0533 shuangqiang wang A
Timing study of some double neutron star systems using FAST shuangqiang wang A
Mapping Cygnus-X in HINSA Bo Hu A
How a Massive Galaxy Fuel its Star Formation: Detecting a Cold Stream Jiasheng Huang A
Study the Magnetic Field Distribution and the Recycling Process of Pulsars in M15 Jiguang Lu A
Confirming and Timing Highly Nulling Pulsars and Candidates in Globular Clusters Zhichen Pan A
Study Single Pulses from Spider Pulsars Jintao Luo A
Polarization Properties of Pulsar Single Pulses with FAST Feifei  Kou A
Search for radio pulsations from transitional millisecond pulsar system  Jie Lin A
Timing of pulsars in the Globular Cluster M13 Wang lin A
Continued Deep Searching for pulsars in the Globular Clusters with FAST (DSGC II) Wang lin A
Observing the low-luminosity Fast Radio Bursts in the FAST sky Bojun Wang A
Searching pulsars in the satellite galaxies of the Milky Way Yu Yezhao A
The abnormal-emission shift event of PSR B1859+07 Yu Yezhao A
Expand the Chinese Pulsar Timing Array Heng Xu A
Probing jitter noise of millisecond pulsars using single pulses yi feng A
Observing Spider Pulsars using FAST and Optical Telescopes Heng Xu A
Search for radio pulse for five point-like sources in pulsar wind nebulae and candidates Yang Chen A
Searching for radio pulsations in the transitional millisecond pulsar PSR J1023+0038 Xian Hou A
Extreme switching and radio emission variation in FAST pulsars Rai Yuen A
Phase array observation for pulsars with FAST and Effelsberg Kejia Lee A
HI Intensity Mapping and Galaxy Survey Xuelei Chen A
FAST observations of CU Virginis Lunhua Shang A
A search for radio pulsars in large angular size supernova remnants Wenming Yan A
Investigating unusual profile mode changing in new FAST-discovered radio pulsars  Habtamu Menberu Tedila A
A search for OH absorption in AGN hosts detected with HI 21 cm absorption Aditya JNHS A
Search for the Hidden Secrets of Pulsar Emissions mao yuan A
FAST-GBT Joint Observation of the new repeating FRB 190520 discovered by FAST Niu chenhui A
FAST Observation of Four ‘Swooshes’ Pulsars Shijun Dang A
Zeeman Observations of HI Narrow Self-Absorption in Dark Cores Tao-Chung Ching A
HINSA survey of massive starless clump candidates with FAST Yang Kai A
Pulsars as Interstellar Beacons Jumei Yao A
Baseband polarimetry of non-PTA millisecond pulsars Jinchen Jiang A
The Enigmatic Birth Properties of Pulsars Jiarui Niu A
Testing the Theories of Gravitation with Pulsars Weiwei Zhu A
Deep Mapping of Diffuse HI in Intragroup Medium of Stephan`s Quintet Cong Xu A
HI mapping of the Pisces-Perseus Supercluster region Zhu Ming A
FAST HI survey of ultra diffuse galaxies (UDGs) Chandreyee Sengupta A
 A swift HI survey of  Planck Galactic Cold Cores  Ningyu Tang A
Galactic HI absorption survey toward extra-galactic continuum sources Ningyu Tang A
Searching for radio pulsations from the Central Compact Objects of SNR Kes 79 Zhang Shu A
Testing the polarization emission theory from pulsars with highly polarized components Pengfei Wang A
Exploring the Diffuse Ionized Gas (DIG): from Cloud to Galaxy Zhiyuan Ren A
Mapping two nearby giant radio galaxies: 3C31 and 3C326 Ru-Rong Chen A
Search for radio emission from X-ray dim isolated neutron stars Zhou Xia A
The first high-sensitive, well-calibrated pulsar search and study in three globular clusters: M15, M5 and NGC 6517 Lei Zhang A
Unveiling the HI gas for super spiral galaxies at redshift 0.27 Cheng Cheng A
 Searching and Monitoring Pulsars in 10 Globular Clusters outside the Coverage Range of the Arecibo Zhen Yan A
Unveiling the HI gas for galaxies in transition from low to high star formation efficiency Cheng Cheng A
HI follow-up for ALMaQUEST galaxies Zheng Zheng A
Preprocessing of galaxies infalling into the Coma Cluster Jing Wang A
HI mapping survey of the Orion A complex Tie Liu A
Timing Two Pulsars and Following up Three MSP Candidates Discovered by FAST in Unidentified Fermi Sources Pei Wang A
Deep search of radio emission from radio-quiet magnetars QiJun Zhi A
Lunar detection of ultra-high-energy particles with FAST Cheng Lingmei A
HI Gas of Post-starburst Galaxies with IFU Data Hassen Mohammed Yesuf A
FAST L-band continuum observations of four very faint and large SNRs/SNR candidates outside the Galactic plane Xuyang Gao A
Interplanetary Scintillation Observation with FAST Lijia Liu A
Deciphering the Mystery of the Smith Cloud’s Origin Marko Krco A
Low Frequency FAST Pilot Observations of the Coolest Brown Dwarfs jing tang A
Zeeman Observations across the Orion-A Region: Is the Magnetic Reversal Helical or Bow-shaped? Tao-Chung Ching A
Polarization observational study  for pulsars with mode- changing phenemon by FAST Chen Jianling  A
Single-pulse follow-up of a pulsar discovered by FAST Andrew Cameron A
Timing newly discovered millisecond pulsars in GPPS Pengfei Wang A
Measure post-Keplerian Parameters for 15 pulsar binary systems discovered by FAST Chenchen miao A
A pilot pulsar survey at intermediate Galactic latitudes Shi Dai A
IPS observation of the solar wind flow Yihua Yan A
Follow-up of the six newly detected single radio pulses from the GPPS data Dejiang Zhou A
A HINSA suvey towards a sample of Galactic massive star forming regions Jinjin Xie A
A FAST Survey to Study the Effect of Galaxy Interaction on HI Gas Yu Dai A
Small-scale magnetic field constraints from globular cluster pulsars Pengfei Wang A
Probing magnetic fields in the Galactic halo with FAST pulsar polarization observations Jun Xu A
FAST ToO Program of Comet Observation Chao-Wei Tsai A
A Pilot SETI Targeted and Commensal Program with FAST Tong-Jie Zhang A
FAST observation of SNR G57.2+0.8 that hosts magnetar SGR 1935+2154 Yang Chen A
FAST Galactic Bulge and Plane monitoring program Wenfei Yu A
A deep FAST search for pulsations to unveil the nature of the Magnificent Seven isolated neutron stars Xian Hou A
A FAST-Centric FRB Localization Experiment Chen-hui Niu A
HI Imaging of the Lockman Hole with FAST Marko Krco A
1000 pulses in 1000 pulsars:observations of single pulses chosen through the P-Ṗ diagram wangjingbo wang B
selection of millisecond pulsar candidates for ultra-low-frequency gravitational waves detection wangjingbo wang B
Search for the pulsar corresponding to a possible historical supernova Lei Qian B
Exploring the radio emission from Neptune Yang Gao B
High-velocity Atomic Outflows in Star Formation Regions Yue Cao B
Follow-up Timing of FAST RRATs Zhigang Wen B
Identifying millisecond pulsars among the candidates selected from Fermi LAT Zhongxiang Wang B
Observations of interstellar scintillation using FAST  Yonghua Xu B
FAST survey on OH megamasers JiangShui Zhang B
Search for extragalactic radio recombination lines with FAST Liu Bin B
Mapping the Galactic Warm Ionized Medium with FAST Liu Bin B
Explore distant Galactic turbulence using pulsar scattering Yunpeng Men B
Observing the radio transients from superluminous supernovae Weiyang Wang B
Test general relativity with  binary pulsars Jianping Yuan B
 Timing analysis and emission variations in new pulsars discovered in GPPS Jianping Yuan B
Searching for the pulsar in the gamma-ray binary HESS J0632+057 Pak Hin Tam B
Measuring magnetic fields strengths in Planck Cold Clumps based on the HINSA Zeeman experiment with FAST Eswaraaih Chakali Chakali B
HI content of young starburst blueberry galaxies Yogesh Chandola B
The FAST Track to Zeeman Measurements Hua-bai Li B
A subtle research for moding-change shengnan sun B
Extragalactic HI absorption survey towards bright compact radio quasars Zheng Zheng B
The study of HI and cosmic rays emission in mid-latitude of the third quadrant with FAST and Fermi fang-kun peng B
FAST Ultra Deep Survey (stage 1) Peng Bo B
Constraining dark matter properties from radio observations of Ursa Major II Xiaoyuan Huang B
Study the origin of the cosmic-ray positron excess through searching the pulsed radio emission of the Geminga pulsar Ruoyu Liu B
Search for interstellar organic molecules at low-frequency range with FAST Long-Fei Chen B
A survey of HINSA —from Carbon Chain molecular producing regions to dust cores Yuefang Wu B
A FAST proposal for mode changing pulsars Zhang Yanrong B
Supernova shock into dense ISM: atomic gas in SNR IC 443 Zhiyu Zhang B
Direct Observation of the HI Disk of Massive Spiral Galaxy: A Pilot Study of NGC 891 Lu Liyuan B
Probing the HI content of Merging Galaxies in MaNGA Qingzheng Yu B
HI detection in Narrow-Line Seyfert 1 galaxies Minfeng Gu B
A Timing Study of a Nulling Pulsar Discovered by Five-hundred-meter Aperture Spherical Radio Telescope (FAST) Shen Wang B
Searching axion dark matter conversioned spectral line in neutron star magnetosphere by FAST Wang Chen B
Pulsar glitch and the inner structure of neutron stars ANG LI B
Real-time detection and triggering of FRBs with FAST and the MWA Ran Duan B
FAST searches for millisecond pulsars in Fermi LAT unassociated sources from the 4FGL Catalog Pablo Saz Parkinson B
A Contemporaneous Single-Pulse Search and Study with FAST and the MWA  Mengyao Xue B
Probing the HI Gas Contents of Transitional Galaxies Indicated by the [NII]/[SII] ratios Fang Taotao B