Extrasolar: Stars:
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| Summary: | Pulsar System PSR B1957+20 (i.e QX Sge) nicknamed the "Black Widow". |
| Description: | his is the pulsar system PSR B1957+20 (i.e QX Sge) nicknamed the "Black Widow". The neutron star is known to host a very low-mass companion with no more than 0.022 Solar masses (i.e roughly 22 Jupiter masses) that is not a low-mass shrunken white dwarf of 25 Jupiter masses but quite a brown dwarf with very "bloated" radius (up to 3 Jupiter radii, or 0.3 Solar radii). As stated by Reynolds et al. (2007). |
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| Creator: | Edasich |
| Version: | 1.0 |
| License: | © 2010 Edasich |
| Added: | 2010-04-20 22:32 |
| Last modified: | 2011-10-10 11:36 |
| Download: | |
| Black Widow Pulsar and Companion SSC/STC/JPG/PNG | 251.54 kB |
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