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Proposal Identification No.:

P2908

Date Received:

2014-Feb-28 19:35:09

Technical Page
This proposal has not been submitted before. Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Pulsars Galactic 12 Hours 3

Simultaneous X-ray/radio observations of the mode-switching PSR B0943+10

The recent discovery (Hermsen et al 2013) of variations in the X-ray flux of the pulsar PSR B0943+10, correlated with the changes in radio emission, challenged the widespread notion that the rotation- powered neutron stars are steady emitters at high energy. PSRB0943+10 is thus a key target to gain insight into the emission processes at work in the radio pulsars. In particular, two different scenarios have been put forward to interpret the X-ray timing and spectral properties of PSR B0943+10. We have successfully applied for an XMM-Newton Large Program (P.I. Mereghetti) to investigate in more detail the properties of PSR B0943+10 and 400 ks of observations have been granted. We propose to use the Arecibo radio telescope as a member of a large campaign of radio observations of PSR B0943+10 to be performed in simultaneity with the X-ray pointings. Arecibo is essential for ensuring a full coverage of the XMM-Newton observations and provide the highest quality radio data of the target.

Name Andrea Possenti

Institution INAF-Osservatorio Astronomico di Cagliari

E-mail possenti@oa-cagliari.inaf.it

Phone Student +3907071180228 no

Remote Observing Request

Observer will travel to AO Remote Observing X In Absentia (instructions to operator)

Instrument Setup
327 Atmospheric Observation Instruments:

1


Sp ecial Equipment or setup:

none

RFI Considerations Frequency Ranges Planned
310-340

2