FR606 Test Observation for Pulsar Scintillation

For each pulsar, we give an example of what dynamic spectrum look like with the optimal or current highest frequency resoltion.

PPT
Name Observation Scintle Arc frequency resolution Time resolution nbin DM (cm^{-3} pc) P0(s) Length (hour) Note
Have Confidence:
B0950+08

Yes Checking ~5 kHz(excellent) ~10 s 1024 2.97 0.25 2 h
B0809+74

Yes Checking ~5 kHz(excellent) ~10 s 1024 5.75 1.29 1 h
B0834+06

Yes Yes ~1.25 kHz(excellent) ~10 s 256 12.86 1.273 1 h Arc
B1133+16

Yes Yes ~1.25 kHz (excellent) ~10 s 256 4.84 1.188 1.5 h Arc
B1237+25

Yes Checking ~5 kHz(excellent) ~10 s 1024 9.25 1.382 1 h
B0329+54

Yes checking ~0.15 KHz (good) ~10 s 64 26.76 0.7145 1 h
B0655+64

Yes Yes ~5 kHz ~10 s 1024 8.77387 0.19567 1 h orbit period: 24 hours
B0823+26

Yes Yes ~0.6 KHz (good) ~10 s 128 19.48 0.53 1 h Arc
B1604-00

Yes No ~1.25 kHz (excellent) ~10 s 256 10.6823 0.422 1 h
B1919+21

Yes Yes ~1.25 kHz (excellent) ~10 s 256 12.444 1.337 1 h Arc
J1932+1059

Yes Yes ~1.25 kHz (excellent) ~10 s 256 3.18321 0.227 1 h Arc
B2217+47

No No ~0.15 kHz ~10 s 16 43.4975 0.538 1 h ARC from LOFAR core
not sure:
J2018+2839

Yes Checking ~0.15 KHz (good) ~10 s 128 14.198 0.55795 1 h We can't detect scintles by eyes, but from the ACF it looks like I have a very clear detection of scintles.
B1508+55

Yes checking ~0.3 KHz ~10 s 32 19.62 0.7397 1 h
B0031-07

Yes No ~1.25 kHz (excellent) ~10 s 1024 10.922 0.94 1 h nulling, drifts and mode changes
give up:
J0034-0534

No No ~1.25 KHz ~10 s 256 13.765 0.00188 1 h this pulsar probably should be abandoned.
J0636+5128

NO NO ~5KHz ~10 s 8 11.09 0.00286 1 h df=5KHz, dt=1/df=0.2ms, nbin=p0/dt=14.34
B0919+06

No No ~1.25 kHz ~10 s 256 27.2986 0.4306 1 h this pulsar probably should be abandoned.
J0946+0951

No No ~1.25 KHz ~10 s 256 15.31845 1.1 1 h this pulsar probably should be abandoned.
J1300+1240

No No ~0.3 kHz ~10 s 64 10.16550 0.0062 1 h this pulsar probably should be abandoned.
J1537+1155

No No ~1.25 KHz ~10 s 256 11.62 0.0379 1 h this pulsar probably should be abandoned.
B1737+13

No No ~0.16 (can't) ~10 s 16 48.668 0.803 1 h this pulsar probably should be abandoned.
J1857+0943

No No ~0.6 kHz ~10 s 128 13.3140 0.0054 1 h this pulsar probably should be abandoned.
B2327-20

No No ~1.25 KHz ~10 s 256 8.456 1.64 1 h this pulsar probably should be abandoned.
Move to LOFAR CORE:
J0323+3944

No No ~0.3 kHz ~10 s 64 26.18975 3.032 1 h Move to LOFAR core
B2045-16

No No ~1.25 kHz ~10 s 256 11.456 1.96 1 h move to LOFAR CORE
J2113+2754

No No ~0.6 kHz ~10 s 128 25.11106 1.2028 1 h Move to LOFAR core
J2313+4253

No No ~0.3 kHz ~10 s 64 17.27693 0.349 1 h Move to LOFAR core

For which pulsar do we want to do more tests?

B1919+21 (strange dynamic, 5 second time resolution?)

B0655+64

More MSP and binary system?

some puslars I'd like to test: Go!

B0531+21

align pulse: Pulse

Long term monitoring

What is the oberving length for pulsar timing studies?

High Priority: B0823+26 arc
B1133+16
B0834+06
Medium Priority: B1237+25 bright
B0809+74
B0950+08
B0329+54
Low Priority: B1604-00 S/N not excellent
Not sure: B1919+21 Arc but need one more test
B0655+64 excellent pulsar but need to fix the .par file
B2217+47 GLOW        frequency-dependent, time-variable DM
B2016+28 S/N, more data already
B1508+55 S/N, more data already
B0031-07 nulling, drifts and mode changes

 

 

 

 

 

 

 

 

Ziwei Wu

Bielefeld Univeristy

Update-Time: 2020-12-03