Discussion:Liste de pulsars notables

additis possibles

I just found this nice table of pulsars. In order to give more information than the short statement and the listing of category, perhaps it may be possible to add:

• frequency range (optical, microwave, x-ray)
• rotation frequency

87.78.219.89 1 avril 2007 à 00:39 (CEST)

Well, that could be a good idea, but I do not have all these figures right now ! CDS should give them, however [1]. Ultimately, all these pulsars will deserve an article, and one shall copy and paste these infos from the articles to this page (or the other way round). I have some stuff to do in many astronomy & cosmology articles, so I cannot give any precise schedule for that. Alain r 1 avril 2007 à 01:30 (CEST)

Thanks for the extension! I may read French but only have basic skills in writing.
I added P/(dP/dt) which is an indication for a age or unusual behaviour.

What about changing title from pulsars to neutron stars?

Geminga does not radiate microwave we can detect. We might add RX J1856-3754 which seems not to radiate microwave at all.

Questions: do you know the meaning of RX (in RX J1856..)?

Is it true that we know around 1700 pulsars and only 7 neutron stars without microwave radiation?

Best regards, Frami 1 avril 2007 à 15:15 (CEST)

In practice what one sees are pulses, whether in optical, X/gamma rays, or radio. Most often they are seen in radio, but not always. How many follow the rule is not known to me, but the number is probably small. What is hard in radio wavelength is to find where the pulsar lies. Once this is known, this is mostly a matter of integration time. I do no know for example whether the companion of PSR B1913+16 is taken into account or not (since it is not seen at all). Alain r 1 avril 2007 à 21:42 (CEST)

P.S. : RX = Rosat satellite X-ray source.

Btw, there is no problem that you add characteristic age, but beware that it is $P/2{\dot {P}}$ and not $P/{\dot {P}}$. Moreover, it is given at CDS (most often as its logarithm in years). So best is to copy paste from there instead of doing it yourself.

PSR J1614-2230

Je pense que ce pulsar devrait figurer dans cette liste à défaut d'avoir un article à lui. Il me semble qu'il s'agit d'un pulsar dont la masse a pu être déterminée de manière très précise comparée aux autres pulsars. Les anglais possèdent un article sur ce pulsar. Pamputt ✉ 4 novembre 2010 à 19:09 (CET)