Unusual stars

In addition to Milne 56, I note KIC 8462852. In addition to the unusual variability in its brightness, it is interesting to me that this star has a companion small red dwarf. If a planetary scale life form developed on Earth, colonized Jupiter/Saturn for the hydrogen, and also began to use the sun more directly, we might (eventually) see something which looks like a small red dwarf interacting in an unusual way with a larger star. I don't want to leap straight to the conclusion that this is a planetary scale life form. The Universe is very large and variable. But it is interesting.

In addition, I note M15 S2 (VLA J213002.08+120904). This appears to be a black hole, possibly locked in orbit with a red dwarf star. What is odd about this radiation source is that it emits almost no X-rays, but emits significant radio energy, which is not what we expect froma system containing a black hole and a red dwarf. One characteristic of life is that it converts or dissipates a small number of photons of higher energy electromagnetic radiation (typically UV and visible) into a larger number of photons of lower energy electromagnetic radiation (infrared). M15 S2 suggests that we may be underestimating the number of black holes by a significant factor. As above, I don't want to jump straight to the conclusion that this is a planetary scale life form, but for me it falls into the category of a small red dwarf interacting in an unusual way with a larger star. 

In addition, I note Pulsar IGR J1104-6103.  This is a very high speed pulsar, emitting a corkscrew jet and a smaller, generally perpendicular, jet --  a steering force?  Says the Chandra X-Ray Observatory: "one of the fastest moving pulsars ever observed" and "the new Chandra and ATCA data show that the PWN [pulsar wind nebula] is almost perpendicular to the direction of the jet. This intriguing because usually the pulsar's direction of motion, its jet, and its PWN are aligned with one another."

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