140 likes | 224 Views
Team hulse pulsar collaboration. Questions to be answered: ~ What data sets were examined? ~ how many were candidates? What makes them probable pulsars? ~ How many were non candidates? what makes them non candidates ? ~ What is the team’s methodology? ~ Can improvements be made?.
E N D
Questions to be answered: ~ What data sets were examined? ~ how many were candidates? What makes them probable pulsars? ~ How many were non candidates? what makes them non candidates? ~ What is the team’s methodology? ~ Can improvements be made?
methodology Team splits up plots looks through plots for the first time weeds out obvious non candidates Documents possible candidates Has team review documented candidates Team decides what should go up for final review Likely pulsar candidates are posted for review on the gbt.
What data sets were examined? 1939+2115 2235+2113 1737-0817 1146+2414 0121-0820 0321-0750 0354-0749 0522-0748 0515-0748 0404-0749 300 plots total
How many were non candidates? 299 Non candidates
The lone candidate 1 Candidate As well as 1 known pulsar
1 known pulsar B2234+2114 Plot 1 Plot 2
299 non candidates What was it? RFI
299 non candidates Why is itRFI? plot 1 Pulse profile: Oscillating. Time series: too wide. Sub-band: not at all frequencies. DM: is okay but does not have one good peak. plot 2 Pulse profile: looks okay. Time series: too wide. Sub-band: too wide. Dm: dm is at zero.
Can improvements be made? ~ change hot key locations ~ change comment box layout Pulse Profile: Appears to be random noise. Time: Does not match Pulse Profile. Sub-band: Shows narrow band characteristics. DM: Shows little significance.
conclusion If continued under the present conditions, the nrao psc should be a very successful program, identifying many new pulsars. Pulse Profile: Time: Sub-band: DM:
Russell a. hulse American physicist Nobel prize winner Studied pulsars Studied gravitational waves Found the first binary pulsar Time: DM: