1

NenuFAR pulsar KP plan

J.-M. Grießmeier, G. Theureau et al.

2

NenuFAR pulsar KP interest

pulsar population & peculiar objects & FRBs? emission mechanism interstellar medium

Scientific subjects

Technical subjects flux calibration (AB,VK) polarization calibration (AB, VK, AN?,GS)

3

People

Louis Bondonneau, Ismaël Cognard, Jean-Mathias Grießmeier, Lucas Guillemot, Gilles Theureau

Anna Bilous (0.1), Caterina Tiburzi, Julian Donner (0.2), Krishnakumar M.A. (0.2), Robert Main (0.2), James McKee (0.4), Vlad Kondratiev (0.1), Aris Noutsos (0.2), Maura Pilia (0.05), Andrea Possenti (0.05), Golam Shaifullah, Joris Verbiest (0.x), ...

→ ~1.5+ FTE+students

4

Populations & objects

census: 513 targets x ~1h (LB,GT,JMG) MSPs (LB,GT,JMG,VK?,GS) spectra: 40 targets x 1h/month (LB,GT,JMG,AB,VK,GS) polarization: 150 targets x 1/3h (LB,JMG,AN) globular clusters: after census? check DM? (AP) elipsing binaries (black widows/redbacks) (RM,AP,JV)

with known eclipse: 5 targets x 3h (AB,RB?,RM,GS) without known eclipse (?) (AP)

FRBs (IC,JMG,AP) blind survey: later? strategy?

5

Populations & objects census: 513 targets x ~1h

all known pulsars with DM

6

Populations & objects spectra: 40 targets x 1h/month

spectral distribution study of the 40 'brightest' known pulsars (10 passes per pulsar within 6 months, 10-85 MHz)

7

Emission mechanisms

giants pulses: 5 targets (JMcK,JV) profile evolution: ~10 targets (LB,JMG,AB,MP) single-pulse polarization (AB,AN) drifting subpulses, mode switching, nulling (AB) single pulse: energy distribution, …: 7+ targets (AB,VK) single pulse multi-telescope: 12 sources x 2 x1/2h (GT,MP,JV,JMG,...)

8

Emission mechanisms profile evolution: ~10 targets

9

Emission mechanisms drifting subpulses, mode switching, nulling

10

Interstellar medium

FR variations → solar wind [feasible?] (CT?,JV) FR variations → ionosphere (AN) FR variations → ISM (AB,KMA,AN) DM variations → solar wind+CME (KMA,CT?,JV) DM variations → ISM (JMG,LB,JD,KMA,JMcK,GS,JV) scattering variation (JMG,AB,VK,KMA, JMcK,JV) scattering of giant pulses: 3 targets x 2h (AB,RM, JMcK, JV) VLBI of scattering screens: ~8 targets x 2h (RM, OW?) scintillation (JV,VK,RM)

11

Interstellar medium DM variations → ISM

[Donner et al. 2019]

12

Skills/Resources multi-frequency

FR606 + GLOW (JMG,JD,JV)LOFAR/HBA (JD,JV)GMRT (RM)EffelsbergSRT (AP)NRT (GT,IC,LG)X-ray (AP)gamma-ray (LG)

software development (JV) GP pipeline dispersion? (JMcK) pipeline development (JMG,VK)

13

TODO

fluxes polarization blind survey strategy

(subarraying? incoherent? antenna selection?) data volume piggyback (?) FRB search algorithm priorities

→ KP busy week July 2019

Slide 1Slide 2Slide 3Slide 4Slide 5Slide 6Slide 7Slide 8Slide 9Slide 10Slide 11Slide 12Slide 13